ecos: packages/hal/arm/arch/current/src/vectors.S annotate

annotate packages/hal/arm/arch/current/src/vectors.S @ 172:cd45958b28ff

Merge from eCos master repository on 2001-07-20-10:24:43-BST

author	jlarmour
date	Fri, 20 Jul 2001 10:23:16 +0000
parents	ac086aa3217e
children	e0c0827131d1

rev	line source
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1 // #========================================================================
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	2 // #
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	3 // # vectors.S
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	4 // #
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	5 // # ARM exception vectors
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	6 // #
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	7 // #========================================================================
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	8 // ####COPYRIGHTBEGIN####
64 c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 58 diff changeset	9 //
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 58 diff changeset	10 // -------------------------------------------
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 58 diff changeset	11 // The contents of this file are subject to the Red Hat eCos Public License
66 bf00f99aec69 Merge from eCos master repository on 2000-02-02-19:16:44-GMT jlarmour parents: 64 diff changeset	12 // Version 1.1 (the "License"); you may not use this file except in
64 c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 58 diff changeset	13 // compliance with the License. You may obtain a copy of the License at
66 bf00f99aec69 Merge from eCos master repository on 2000-02-02-19:16:44-GMT jlarmour parents: 64 diff changeset	14 // http://www.redhat.com/
64 c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 58 diff changeset	15 //
66 bf00f99aec69 Merge from eCos master repository on 2000-02-02-19:16:44-GMT jlarmour parents: 64 diff changeset	16 // Software distributed under the License is distributed on an "AS IS"
64 c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 58 diff changeset	17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 58 diff changeset	18 // License for the specific language governing rights and limitations under
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 58 diff changeset	19 // the License.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 58 diff changeset	20 //
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 58 diff changeset	21 // The Original Code is eCos - Embedded Configurable Operating System,
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 58 diff changeset	22 // released September 30, 1998.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 58 diff changeset	23 //
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 58 diff changeset	24 // The Initial Developer of the Original Code is Red Hat.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 58 diff changeset	25 // Portions created by Red Hat are
148 8f2f7615e727 Merge from eCos master repository on 2001-01-12-06:43:03-GMT jlarmour parents: 145 diff changeset	26 // Copyright (C) 1998, 1999, 2000, 2001 Red Hat, Inc.
64 c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 58 diff changeset	27 // All Rights Reserved.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 58 diff changeset	28 // -------------------------------------------
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 58 diff changeset	29 //
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	30 // ####COPYRIGHTEND####
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	31 // #========================================================================
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	32 // ######DESCRIPTIONBEGIN####
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	33 // #
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	34 // # Author(s): nickg, gthomas
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	35 // # Contributors: nickg, gthomas
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	36 // # Date: 1999-02-20
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	37 // # Purpose: ARM exception vectors
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	38 // # Description: This file defines the code placed into the exception
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	39 // # vectors. It also contains the first level default VSRs
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	40 // # that save and restore state for both exceptions and
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	41 // # interrupts.
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	42 // #
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	43 // #####DESCRIPTIONEND####
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	44 // #
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	45 // #========================================================================
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	46
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	47 #include <pkgconf/hal.h>
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	48 #include <pkgconf/hal_arm.h>
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	49 #ifdef CYGPKG_KERNEL // no CDL yet
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	50 #include <pkgconf/kernel.h>
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	51 #else
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	52 # undef CYGFUN_HAL_COMMON_KERNEL_SUPPORT
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 4 diff changeset	53 # undef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	54 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	55 #include <cyg/hal/hal_platform_setup.h>
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	56
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	57 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	58 // The CDL should enforce this
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	59 #undef CYGHWR_HAL_ARM_DUMP_EXCEPTIONS
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	60 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	61
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	62 #include "arm.inc"
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	63
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	64 #ifdef __thumb__
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	65 // Switch to thumb mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	66 #define THUMB_MODE(_r_, _l_) \
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	67 ldr _r_,=_l_ ## f+1 ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	68 bx _r_ ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	69 .pool ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	70 .code 16 ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	71 .thumb_func ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	72 _l_:
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	73
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	74 // Switch to ARM mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	75 #define ARM_MODE(_r_, _l_) \
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	76 ldr _r_,=_l_ ## f ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	77 bx _r_ ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	78 .pool ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	79 .code 32 ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	80 _l_:
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	81
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	82 // Function definition, start executing body in ARM mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	83 #define FUNC_START_ARM(_name_, _r_) \
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	84 .code 16 ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	85 .thumb_func ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	86 .globl _name_ ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	87 _name_: ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	88 ldr _r_,=_name_ ## _ARM ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	89 bx _r_ ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	90 .code 32 ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	91 _name_ ## _ARM:
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	92
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	93 #else
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	94
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	95 // Switch to thumb mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	96 #define THUMB_MODE(_r_, _l_)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	97
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	98 // Switch to ARM mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	99 #define ARM_MODE(_r_, _l_)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	100
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	101 // Function definition, start executing body in ARM mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	102 #define FUNC_START_ARM(_name_, _r_) \
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	103 .globl _name_; \
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	104 _name_:
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	105
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	106 #endif
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	107
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	108
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	109
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	110 #define PTR(name) \
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	111 .##name: .word name
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	112
151 25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	113 // CYGHWR_HAL_ROM_VADDR is used when compiling for a different location
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	114 // from the base of ROM. hal_platform_setup.h might define it. For
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	115 // example, if flash is from 0x50000000 upwards (as on SA11x0), and we are
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	116 // to execute at 0x50040000, then we want the reset vector to point to
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	117 // 0x0004pqrs - the unmapped ROM address of the code - rather than
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	118 // 0x0000pqrs, which is the offset into our flash block.
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	119 //
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	120 // But usually it's not defined, so the behaviour is the obvious.
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	121
154 e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	122 #ifndef UNMAPPED
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	123 #ifdef CYGHWR_HAL_ARM_HAS_MMU
151 25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	124 # ifndef CYGHWR_HAL_ROM_VADDR
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	125 # define CYGHWR_HAL_ROM_VADDR __exception_handlers
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	126 # endif
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	127 # define UNMAPPED(x) ((x)-CYGHWR_HAL_ROM_VADDR)
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	128 #else
151 25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	129 # define UNMAPPED(x) (x)
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	130 #endif
154 e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	131 #endif
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	132
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	133 #define UNMAPPED_PTR(name) \
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	134 .##name: .word UNMAPPED(name)
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	135
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	136 .file "vectors.S"
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	137
50 a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	138
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	139 // CYGHWR_LED_MACRO can be defined in hal_platform_setup.h. It's free to
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	140 // use r0+r1. Argument is in "\x" - cannot use macro arguments since the
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	141 // macro may contain #-chars and use of arguments cause these to be
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	142 // interpreted as CPP stringify operators.
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	143 // See example in PID hal_platform_setup.h.
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	144 #ifndef CYGHWR_LED_MACRO
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	145 #define CYGHWR_LED_MACRO
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	146 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	147
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	148 .macro LED x
50 a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	149 CYGHWR_LED_MACRO
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	150 .endm
306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	151
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	152
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	153 //==========================================================================
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	154 // Hardware exception vectors.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	155 // This entire section will be copied to location 0x0000 at startup time.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	156 //
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	157 .code 32
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	158 .section ".vectors","ax"
160 0d0f03f76f6a Merge from eCos master repository on 2001-06-01-18:52:13-BST jlarmour parents: 159 diff changeset	159
0d0f03f76f6a Merge from eCos master repository on 2001-06-01-18:52:13-BST jlarmour parents: 159 diff changeset	160 // This macro allows platforms to add their own code at the very start of
0d0f03f76f6a Merge from eCos master repository on 2001-06-01-18:52:13-BST jlarmour parents: 159 diff changeset	161 // the image. This may be required in some circumstances where eCos ROM
0d0f03f76f6a Merge from eCos master repository on 2001-06-01-18:52:13-BST jlarmour parents: 159 diff changeset	162 // based code does not run immediately upon reset and/or when some sort of
0d0f03f76f6a Merge from eCos master repository on 2001-06-01-18:52:13-BST jlarmour parents: 159 diff changeset	163 // special header is required at the start of the image.
0d0f03f76f6a Merge from eCos master repository on 2001-06-01-18:52:13-BST jlarmour parents: 159 diff changeset	164 #ifdef PLATFORM_PREAMBLE
0d0f03f76f6a Merge from eCos master repository on 2001-06-01-18:52:13-BST jlarmour parents: 159 diff changeset	165 PLATFORM_PREAMBLE
0d0f03f76f6a Merge from eCos master repository on 2001-06-01-18:52:13-BST jlarmour parents: 159 diff changeset	166 #endif
0d0f03f76f6a Merge from eCos master repository on 2001-06-01-18:52:13-BST jlarmour parents: 159 diff changeset	167
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	168 .global __exception_handlers
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	169 __exception_handlers:
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 158 diff changeset	170 #ifdef CYGSEM_HAL_ROM_RESET_USES_JUMP
154 e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	171 // Assumption: ROM code has these vectors at the hardware reset address.
e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	172 // A simple jump removes any address-space dependencies [i.e. safer]
e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	173 b reset_vector // 0x00
e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	174 #else
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	175 ldr pc,.reset_vector // 0x00
154 e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	176 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	177 ldr pc,.undefined_instruction // 0x04
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	178 ldr pc,.software_interrupt // 0x08 start && software int
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	179 ldr pc,.abort_prefetch // 0x0C
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	180 ldr pc,.abort_data // 0x10
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	181 .word 0 // unused
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	182 ldr pc,.IRQ // 0x18
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	183 ldr pc,.FIQ // 0x1C
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	184
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	185 // The layout of these pointers should match the vector table above since
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	186 // they are copied in pairs.
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	187 .global vectors
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	188 vectors:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	189 UNMAPPED_PTR(reset_vector) // 0x20
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	190 PTR(undefined_instruction) // 0x24
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	191 PTR(software_interrupt) // 0x28
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	192 PTR(abort_prefetch) // 0x2C
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	193 PTR(abort_data) // 0x30
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	194 .word 0 // 0x34
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	195 PTR(IRQ) // 0x38
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	196 PTR(FIQ) // 0x3c
154 e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	197 #ifdef CYGSEM_HAL_ARM_PID_ANGEL_BOOT
26 4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 24 diff changeset	198 PTR(start) // This is copied to 0x28 for bootup // 0x40
154 e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	199 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	200 // location 0x40 is used for storing DRAM size if known
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	201 // for some platforms.
103 95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	202
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	203 //
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	204 // "Vectors" - fixed location data items
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	205 // This section contains any data which might be shared between
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	206 // an eCos application and any other environment, e.g. the debug
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	207 // ROM.
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	208 //
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	209 .section ".fixed_vectors"
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	210 // Interrupt/exception VSR pointers
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	211 .globl hal_vsr_table
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	212 hal_vsr_table:
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	213 .rept 8
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	214 .long 0
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	215 .endr
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	216
103 95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	217 .globl hal_dram_size
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	218 hal_dram_size:
148 8f2f7615e727 Merge from eCos master repository on 2001-01-12-06:43:03-GMT jlarmour parents: 145 diff changeset	219 .long 0
8f2f7615e727 Merge from eCos master repository on 2001-01-12-06:43:03-GMT jlarmour parents: 145 diff changeset	220 // what, if anything, hal_dram_type means is up to the platform
8f2f7615e727 Merge from eCos master repository on 2001-01-12-06:43:03-GMT jlarmour parents: 145 diff changeset	221 .globl hal_dram_type
8f2f7615e727 Merge from eCos master repository on 2001-01-12-06:43:03-GMT jlarmour parents: 145 diff changeset	222 hal_dram_type:
8f2f7615e727 Merge from eCos master repository on 2001-01-12-06:43:03-GMT jlarmour parents: 145 diff changeset	223 .long 0
103 95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	224
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	225 .balign 16
110 84e4bde58b26 Merge from eCos master repository on 2000-07-14-22:00:02-BST jlarmour parents: 108 diff changeset	226 #ifdef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
84e4bde58b26 Merge from eCos master repository on 2000-07-14-22:00:02-BST jlarmour parents: 108 diff changeset	227 // Vectors used to communicate between eCos and ROM environments
103 95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	228 .globl hal_virtual_vector_table
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	229 hal_virtual_vector_table:
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	230 .rept CYGNUM_CALL_IF_TABLE_SIZE
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	231 .long 0
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	232 .endr
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	233 #endif
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	234
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	235 .balign 32
96 b15c60e34c84 Merge from eCos master repository on 2000-06-06-05:24:42-BST jlarmour parents: 80 diff changeset	236
b15c60e34c84 Merge from eCos master repository on 2000-06-06-05:24:42-BST jlarmour parents: 80 diff changeset	237 // Other vectors - this may include "fixed" locations
b15c60e34c84 Merge from eCos master repository on 2000-06-06-05:24:42-BST jlarmour parents: 80 diff changeset	238 #ifdef PLATFORM_VECTORS
b15c60e34c84 Merge from eCos master repository on 2000-06-06-05:24:42-BST jlarmour parents: 80 diff changeset	239 PLATFORM_VECTORS
b15c60e34c84 Merge from eCos master repository on 2000-06-06-05:24:42-BST jlarmour parents: 80 diff changeset	240 #endif
b15c60e34c84 Merge from eCos master repository on 2000-06-06-05:24:42-BST jlarmour parents: 80 diff changeset	241
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	242 .text
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	243 // Startup code which will get the machine into supervisor mode
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	244 .global reset_vector
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	245 .type reset_vector,function
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	246 reset_vector:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	247 PLATFORM_SETUP1 // Early stage platform initialization
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	248 // which can set DRAM size at 0x40
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	249 // see <cyg/hal/hal_platform_setup.h>
4 1d7f19c9e4d1 Merge from eCos master repository on 1999-05-11-21:11:10-BST jlarmour parents: 2 diff changeset	250
54 f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	251 // Come here to reset board
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	252 warm_reset:
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	253
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	254 #if defined(CYG_HAL_STARTUP_RAM) && \
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	255 !defined(CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS)
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	256 mrs r7,cpsr // move back to IRQ mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	257 and r7,r7,#CPSR_MODE_BITS
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	258 cmp r7,#CPSR_SUPERVISOR_MODE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	259 beq start
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	260 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	261
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	262 // We cannot access any LED registers until after PLATFORM_SETUP1
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	263 LED 7
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	264
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	265 mov r0,#0 // move vectors
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	266 ldr r1,=__exception_handlers
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 34 diff changeset	267 #ifndef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	268 // Wait with this if stubs are included (see further down).
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	269 ldr r2,[r1,#0x04] // undefined instruction
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	270 str r2,[r0,#0x04]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	271 ldr r2,[r1,#0x24]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	272 str r2,[r0,#0x24]
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 34 diff changeset	273 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	274 ldr r2,[r1,#0x08] // software interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	275 str r2,[r0,#0x08]
46 797268ecc331 Merge from eCos master repository on 1999-10-19-18:55:31-BST jlarmour parents: 40 diff changeset	276
797268ecc331 Merge from eCos master repository on 1999-10-19-18:55:31-BST jlarmour parents: 40 diff changeset	277
154 e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	278 #if defined(CYGSEM_HAL_ARM_PID_ANGEL_BOOT)
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 34 diff changeset	279 // Ugly hack to get into supervisor mode
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	280 ldr r2,[r1,#0x40]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	281 str r2,[r0,#0x28]
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	282
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	283 LED 6
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	284
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	285 swi // switch to supervisor mode
14 01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 10 diff changeset	286 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	287
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	288 // =========================================================================
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	289 // Real startup code. We jump here from the reset vector to set up the world.
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	290 .globl start
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	291 start:
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	292
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	293 LED 5
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	294
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	295 #if defined(CYG_HAL_STARTUP_RAM) && \
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	296 !defined(CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	297 // If we get restarted, hang here to avoid corrupting memory
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	298 ldr r0,.init_flag
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	299 ldr r1,[r0]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	300 1: cmp r1,#0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	301 bne 1b
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	302 ldr r1,init_done
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	303 str r1,[r0]
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	304 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	305
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	306 // Reset software interrupt pointer
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	307 mov r0,#0 // move vectors
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	308 ldr r1,.__exception_handlers
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	309 #if defined(CYG_HAL_STARTUP_RAM) && \
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	310 !defined(CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS)
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	311 cmp r7,#CPSR_SUPERVISOR_MODE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	312 beq 10f
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	313 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	314 ldr r2,[r1,#0x28] // software interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	315 str r2,[r0,#0x28]
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	316 10:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	317 ldr r2,[r1,#0x18] // IRQ
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	318 str r2,[r0,#0x18]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	319 ldr r2,[r1,#0x38]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	320 str r2,[r0,#0x38]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	321 ldr r2,[r1,#0x1C] // FIQ
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	322 str r2,[r0,#0x1C]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	323 ldr r2,[r1,#0x3C]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	324 str r2,[r0,#0x3C]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	325 ldr r2,[r1,#0x0C] // abort (prefetch)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	326 str r2,[r0,#0x0C]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	327 ldr r2,[r1,#0x2C]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	328 str r2,[r0,#0x2C]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	329 ldr r2,[r1,#0x10] // abort (data)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	330 str r2,[r0,#0x10]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	331 ldr r2,[r1,#0x30]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	332 str r2,[r0,#0x30]
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	333
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	334 LED 4
50 a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	335
172 cd45958b28ff Merge from eCos master repository on 2001-07-20-10:24:43-BST jlarmour parents: 161 diff changeset	336 #if defined(CYG_HAL_STARTUP_ROM) \|\| defined(CYG_HAL_STARTUP_ROMRAM)
54 f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	337 // Set up reset vector
132 0ae0bc38e387 Merge from eCos master repository on 2000-10-31-00:30:36-GMT jlarmour parents: 112 diff changeset	338 mov r0,#0
0ae0bc38e387 Merge from eCos master repository on 2000-10-31-00:30:36-GMT jlarmour parents: 112 diff changeset	339 ldr r1,.__exception_handlers
54 f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	340 ldr r2,[r1,#0x00] // reset vector intstruction
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	341 str r2,[r0,#0x00]
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	342 ldr r2,=warm_reset
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	343 str r2,[r0,#0x20]
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	344 // Relocate [copy] data from ROM to RAM
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	345 ldr r3,.__rom_data_start
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	346 ldr r4,.__ram_data_start
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	347 ldr r5,.__ram_data_end
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	348 cmp r4,r5 // jump if no data to move
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	349 beq 2f
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	350 sub r3,r3,#4 // loop adjustments
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	351 sub r4,r4,#4
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	352 1: ldr r0,[r3,#4]! // copy info
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	353 str r0,[r4,#4]!
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	354 cmp r4,r5
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	355 bne 1b
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	356 2:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	357 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	358
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	359 // initialize interrupt/exception environments
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	360 ldr sp,.__startup_stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	361 mov r0,#(CPSR_IRQ_DISABLE\|CPSR_FIQ_DISABLE\|CPSR_IRQ_MODE)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	362 msr cpsr,r0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	363 ldr sp,.__exception_stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	364 mov r0,#(CPSR_IRQ_DISABLE\|CPSR_FIQ_DISABLE\|CPSR_UNDEF_MODE)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	365 msr cpsr,r0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	366 ldr sp,.__exception_stack
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	367
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	368 // initialize CPSR (machine state register)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	369 mov r0,#(CPSR_IRQ_DISABLE\|CPSR_FIQ_DISABLE\|CPSR_SUPERVISOR_MODE)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	370 msr cpsr,r0
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	371
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	372 // Note: some functions in LIBGCC1 will cause a "restore from SPSR"!!
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	373 msr spsr,r0
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	374
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	375 // initialize stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	376 ldr sp,.__startup_stack
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	377
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	378 // clear BSS
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	379 ldr r1,.__bss_start
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	380 ldr r2,.__bss_end
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	381 mov r0,#0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	382 cmp r1,r2
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	383 beq 2f
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	384 1: str r0,[r1],#4
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	385 cmp r1,r2
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	386 bne 1b
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	387 2:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	388
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	389 // Run kernel + application in THUMB mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	390 THUMB_MODE(r1,10)
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	391
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	392 LED 3
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	393
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	394 // Call platform specific hardware initialization
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	395 bl hal_hardware_init
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	396
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 34 diff changeset	397 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	398 bl initialize_stub
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 34 diff changeset	399
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	400 // Now that stub is initialized, change vector. It is possible
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	401 // to single-step through most of the init code, except the below.
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	402 // Put a breakpoint at the call to cyg_hal_invoke_constructors to
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	403 // pass over this bit (s-s depends on internal state in the stub).
50 a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	404 #endif
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	405
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	406 #if defined(CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS) \|\| \
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	407 defined(CYGIMP_HAL_PROCESS_ALL_EXCEPTIONS)
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	408 mov r0,#0 // move vectors
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	409 ldr r1,=__exception_handlers
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	410 ldr r2,[r1,#0x04] // undefined instruction
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	411 str r2,[r0,#0x04]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	412 ldr r2,[r1,#0x24]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	413 str r2,[r0,#0x24]
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 34 diff changeset	414 #endif
112 02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 110 diff changeset	415
103 95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	416 #if defined(CYGDBG_HAL_DEBUG_GDB_CTRLC_SUPPORT) \
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	417 \|\| defined(CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT)
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	418 .extern hal_ctrlc_isr_init
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	419 bl hal_ctrlc_isr_init
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	420 #endif
151 25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	421
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	422 LED 2
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	423
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	424 // Run through static constructors
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	425 bl cyg_hal_invoke_constructors
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	426
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	427 LED 1
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	428
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	429 // This starts up the eCos kernel
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	430 bl cyg_start
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	431 _start_hang:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	432 b _start_hang
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	433 .code 32
54 f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	434
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	435 .global reset_platform
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	436 .type reset_platform,function
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	437 reset_platform:
70 c5536bad4c24 Merge from eCos master repository on 2000-02-11-15:46:40-GMT jlarmour parents: 66 diff changeset	438 #ifdef CYGSEM_HAL_ROM_MONITOR
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	439 // initialize CPSR (machine state register)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	440 mov r0,#(CPSR_IRQ_DISABLE\|CPSR_FIQ_DISABLE\|CPSR_SUPERVISOR_MODE)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	441 msr cpsr,r0
54 f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	442 b warm_reset
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	443 #else
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	444 mov r0,#0
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	445 mov pc,r0 // Jump to reset vector
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	446 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	447
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	448 init_done:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	449 .long 0xDEADB00B
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	450
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	451 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	452 // Exception handlers
46 797268ecc331 Merge from eCos master repository on 1999-10-19-18:55:31-BST jlarmour parents: 40 diff changeset	453 // Assumption: get here from a Supervisor context [mode]
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	454 //
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	455 .code 32
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	456 undefined_instruction:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	457 ldr sp,.__undef_exception_stack // get good stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	458 stmfd sp!,{r0,fp,ip,lr}
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	459 mrs r0,spsr
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	460 stmfd sp!,{r0}
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	461 mov ip,sp // save SP which will vanish with
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	462 // mode switch
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	463 mrs r0,cpsr // switch to Supervisor Mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	464 bic r0,r0,#CPSR_MODE_BITS
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	465 orr r0,r0,#CPSR_SUPERVISOR_MODE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	466 msr cpsr,r0 // sp,lr are now old values
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	467 mov fp,sp
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	468 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	469 ldr sp,.__GDB_stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	470 cmp fp,sp // already on GDB stack?
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	471 bhi 10f
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	472 ldr r0,.__GDB_stack_base
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	473 cmp fp,r0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	474 bls 10f // no - switch to GDB stack
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	475 // (already in sp)
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	476 mov sp,fp // yes - no switch
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	477 10:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	478 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	479 sub sp,sp,#ARMREG_SIZE // make space for frame
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	480 stmea sp,{r0-r10,fp} // save immediately visible registers
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	481 ldmfd ip,{r0-r4} // saved registers
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	482 // Adjust PC according to CPU mode
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	483 tst r0,#CPSR_THUMB_ENABLE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	484 subeq r4,r4,#4 // PC at time of interrupt (ARM)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	485 subne r4,r4,#2 // PC at time of interrupt (thumb)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	486 str r0,[sp,#armreg_cpsr] // CPSR at time of interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	487 str r1,[sp,#armreg_r0] // saved R0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	488 str r2,[sp,#armreg_fp] // saved FP
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	489 str r3,[sp,#armreg_ip] // saved IP
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	490 str r4,[sp,#armreg_pc] // PC at time of interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	491 str lr,[sp,#armreg_lr] // LR at time of interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	492 add r0,ip,#ARMREG_SIZE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	493 str fp,[sp,#armreg_sp] // SP at time of interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	494 #ifdef CYGHWR_HAL_ARM_DUMP_EXCEPTIONS
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	495 mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	496 bl cyg_hal_report_undefined_instruction
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	497 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	498 mov v1,#CYGNUM_HAL_EXCEPTION_ILLEGAL_INSTRUCTION
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	499 b call_exception_handler
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	500
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	501 .code 32
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	502 software_interrupt:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	503 sub sp,sp,#ARMREG_SIZE+16 // make space for frame
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	504 stmea sp,{r0-r10,fp} // save immediately visible registers
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	505 mrs r0,spsr
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	506 // Adjust PC according to CPU mode
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	507 tst r0,#CPSR_THUMB_ENABLE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	508 subeq r3,lr,#4 // PC at time of interrupt (ARM)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	509 subne r3,lr,#2 // PC at time of interrupt (thumb)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	510 str r0,[sp,#armreg_cpsr] // CPSR at time of interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	511 str ip,[sp,#armreg_ip] // saved IP
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	512 str r3,[sp,#armreg_pc] // PC at time of interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	513 str lr,[sp,#armreg_lr] // LR at time of interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	514 add r0,sp,#ARMREG_SIZE+16
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	515 str r0,[sp,#armreg_sp] // SP at time of interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	516 #ifdef CYGHWR_HAL_ARM_DUMP_EXCEPTIONS
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	517 mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	518 bl cyg_hal_report_software_interrupt
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	519 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	520 mov v1,#CYGNUM_HAL_EXCEPTION_INTERRUPT
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	521 b call_exception_handler
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	522
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	523 .code 32
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	524 abort_prefetch:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	525 ldr sp,.__undef_exception_stack // get good stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	526 sub lr,lr,#4 // PC at time of interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	527 stmfd sp!,{r0,fp,ip,lr}
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	528 mrs r0,spsr
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	529 stmfd sp!,{r0}
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	530 mov ip,sp // save SP which will vanish with
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	531 // mode switch
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	532 mrs r0,cpsr // switch to Supervisor Mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	533 bic r0,r0,#CPSR_MODE_BITS
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	534 orr r0,r0,#CPSR_SUPERVISOR_MODE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	535 msr cpsr,r0 // sp,lr are now old values
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	536 mov fp,sp
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	537 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	538 ldr sp,.__GDB_stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	539 cmp fp,sp // already on GDB stack?
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	540 bhi 10f
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	541 ldr r0,.__GDB_stack_base
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	542 cmp fp,r0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	543 bls 10f // no - switch to GDB stack
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	544 // (already in sp)
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	545 mov sp,fp // yes - no switch
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	546 10:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	547 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	548 sub sp,sp,#ARMREG_SIZE // make space for frame
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	549 stmea sp,{r0-r10,fp} // save immediately visible registers
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	550 ldmfd ip,{r0-r4} // saved registers
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	551 str r0,[sp,#armreg_cpsr] // CPSR at time of interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	552 str r1,[sp,#armreg_r0] // saved R0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	553 str r2,[sp,#armreg_fp] // saved FP
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	554 str r3,[sp,#armreg_ip] // saved IP
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	555 str r4,[sp,#armreg_pc] // PC at time of interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	556 str lr,[sp,#armreg_lr] // LR at time of interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	557 add r0,ip,#ARMREG_SIZE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	558 str fp,[sp,#armreg_sp] // SP at time of interrupt
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	559 #ifdef CYGHWR_HAL_ARM_DUMP_EXCEPTIONS
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	560 mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	561 bl cyg_hal_report_abort_prefetch
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	562 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	563 mov v1,#CYGNUM_HAL_EXCEPTION_CODE_ACCESS
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	564 b call_exception_handler
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	565
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	566 .code 32
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	567 abort_data:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	568 ldr sp,.__undef_exception_stack // get good stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	569 sub lr,lr,#4 // PC at time of interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	570 stmfd sp!,{r0,fp,ip,lr}
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	571 mrs r0,spsr
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	572 stmfd sp!,{r0}
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	573 mov ip,sp // save SP which will vanish with
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	574 // mode switch
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	575 mrs r0,cpsr // switch to Supervisor Mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	576 bic r0,r0,#CPSR_MODE_BITS
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	577 orr r0,r0,#CPSR_SUPERVISOR_MODE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	578 msr cpsr,r0 // sp,lr are now old values
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	579 mov fp,sp
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	580 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	581 ldr sp,.__GDB_stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	582 cmp fp,sp // already on GDB stack?
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	583 bhi 10f
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	584 ldr r0,.__GDB_stack_base
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	585 cmp fp,r0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	586 bls 10f // no - switch to GDB stack
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	587 // (already in sp)
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	588 mov sp,fp // yes - no switch
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	589 10:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	590 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	591 sub sp,sp,#ARMREG_SIZE // make space for frame
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	592 stmea sp,{r0-r10,fp} // save immediately visible registers
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	593 ldmfd ip,{r0-r4} // saved registers
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	594 str r0,[sp,#armreg_cpsr] // CPSR at time of interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	595 str r1,[sp,#armreg_r0] // saved R0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	596 str r2,[sp,#armreg_fp] // saved FP
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	597 str r3,[sp,#armreg_ip] // saved IP
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	598 str r4,[sp,#armreg_pc] // PC at time of interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	599 str lr,[sp,#armreg_lr] // LR at time of interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	600 add r0,ip,#ARMREG_SIZE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	601 str fp,[sp,#armreg_sp] // SP at time of interrupt
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	602 #ifdef CYGHWR_HAL_ARM_DUMP_EXCEPTIONS
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	603 mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	604 bl cyg_hal_report_abort_data
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	605 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	606 mov v1,#CYGNUM_HAL_EXCEPTION_DATA_ACCESS
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	607 b call_exception_handler
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	608
20 5f5102441818 Merge from eCos master repository on 1999-07-02-23:17:07-BST jlarmour parents: 16 diff changeset	609
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	610 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	611 // Dispatch an exception handler.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	612
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	613 .code 32
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	614 call_exception_handler:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	615 str v1,[sp,#armreg_vector]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	616 mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	617
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	618 THUMB_MODE(r9,10)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	619
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	620 bl exception_handler
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	621 #ifdef CYGHWR_HAL_ARM_DUMP_EXCEPTIONS
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	622 mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	623 bl cyg_hal_report_exception_handler_returned
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	624 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	625
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	626 ARM_MODE(r1,10)
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	627
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	628 // Restore [interrupted] context
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	629 mov ip,sp // get stack pointer
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	630
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	631 mrs r0,cpsr // move back to IRQ mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	632 orr r0,r0,#CPSR_IRQ_DISABLE\|CPSR_FIQ_DISABLE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	633 msr cpsr,r0
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	634 nop
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	635 nop
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	636
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	637 ldr lr,[ip,#armreg_lr]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	638 ldr sp,[sp,#armreg_sp]
50 a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	639
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	640 bic r0,r0,#CPSR_MODE_BITS
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	641 orr r0,r0,#CPSR_IRQ_MODE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	642 msr cpsr,r0
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	643
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	644 mov sp,ip
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	645 ldr lr,[sp,#armreg_pc]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	646 ldr r0,[sp,#armreg_cpsr]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	647 ldr ip,[sp,#armreg_ip]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	648 msr spsr,r0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	649 ldmfd sp,{r0-r10,fp}
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	650
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	651 movs pc,lr // restore PC from LR, CPSR from SPSR
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	652
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	653 // Handle device interrupts
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	654 // This is slightly more complicated than the other exception handlers because
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	655 // it needs to interface with the kernel (if present).
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	656
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	657 .code 32
20 5f5102441818 Merge from eCos master repository on 1999-07-02-23:17:07-BST jlarmour parents: 16 diff changeset	658 FIQ:
151 25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	659 // We can get here from supervisor mode or from IRQ mode.
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	660 mrs r8,spsr // CPSR at time of interrupt
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	661 and r9,r8,#CPSR_MODE_BITS // isolate pre-interrupt mode
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	662 cmp r9,#CPSR_IRQ_MODE
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	663 bne 1f
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	664 // If FIQ interrupted IRQ mode, just return with FIQ disabled.
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	665 // The common interrupt handling takes care of the rest.
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	666 orr r8,r8,#CPSR_FIQ_DISABLE
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	667 msr spsr,r8
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	668 subs pc,lr,#4
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	669 1:
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	670 // If FIQ interrupted supervisor mode, switch to IRQ mode and
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	671 // fall through to IRQ handler.
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	672 ldr sp,.__exception_stack // get good stack to save lr and spsr
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	673 stmdb sp,{r8,lr}
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	674 mov r8,#CPSR_IRQ_MODE\|CPSR_FIQ_DISABLE\|CPSR_IRQ_DISABLE
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	675 msr cpsr,r8 // switch to IRQ mode
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	676 ldr sp,.__exception_stack // get regs saved in FIQ mode
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	677 ldmdb sp,{sp,lr}
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	678 msr spsr,sp
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	679
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	680 // now it looks like we got an IRQ instead of an FIQ except that
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	681 // FIQ is disabled so we don't recurse.
20 5f5102441818 Merge from eCos master repository on 1999-07-02-23:17:07-BST jlarmour parents: 16 diff changeset	682
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	683 IRQ:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	684 // Note: I use this exception stack while saving the context because
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	685 // the current SP does not seem to be always valid in this CPU mode.
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	686 ldr sp,.__exception_stack // get good stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	687 sub lr,lr,#4 // PC at time of interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	688 stmfd sp!,{r0,fp,ip,lr}
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	689 mrs r0,spsr
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	690 stmfd sp!,{r0}
20 5f5102441818 Merge from eCos master repository on 1999-07-02-23:17:07-BST jlarmour parents: 16 diff changeset	691
5f5102441818 Merge from eCos master repository on 1999-07-02-23:17:07-BST jlarmour parents: 16 diff changeset	692 handle_IRQ_or_FIQ:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	693 mov ip,sp // save SP which will vanish with
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	694 // mode switch
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	695 mrs r0,cpsr // switch to Supervisor Mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	696 bic r0,r0,#CPSR_MODE_BITS
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	697 orr r0,r0,#CPSR_SUPERVISOR_MODE\|CPSR_FIQ_DISABLE\|CPSR_IRQ_DISABLE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	698 msr cpsr,r0 // sp,lr are now old values
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	699 mov fp,sp // save old SP
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	700 sub sp,sp,#ARMREG_SIZE // make space for frame
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	701 stmea sp,{r0-r10,fp} // save immediately visible registers
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	702 ldmfd ip,{r0-r4} // saved registers
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	703 str r0,[sp,#armreg_cpsr] // CPSR at time of interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	704 str r1,[sp,#armreg_r0] // saved R0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	705 str r2,[sp,#armreg_fp] // saved FP
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	706 str r3,[sp,#armreg_ip] // saved IP
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	707 str r4,[sp,#armreg_pc] // PC at time of interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	708 str lr,[sp,#armreg_lr] // LR at time of interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	709 str fp,[sp,#armreg_sp] // SP at time of interrupt
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 160 diff changeset	710 mov r0,#CYGNUM_HAL_VECTOR_IRQ // FIXME: we don't distinguish
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 160 diff changeset	711 str r0,[sp,#armreg_vector] // FIQ and IRQ here
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	712 mov v6,sp // Save pointer to register frame
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	713
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	714 // mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	715 // bl _show_frame_in
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	716
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	717 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	718 // Switch to interrupt stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	719 ldr r2,.irq_level // current number of nested interrupts
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	720 ldr r0,[r2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	721 add r1,r0,#1
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	722 str r1,[r2] // if was zero, switch stacks
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	723 cmp r0,#0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	724 moveq r1,sp // save old stack pointer
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	725 ldreq sp,.__interrupt_stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	726 stmeqfd sp!,{r1}
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	727 10:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	728 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	729
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	730 // The entire CPU state is now stashed on the stack,
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	731 // increment the scheduler lock and handle the interrupt
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	732
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	733 #ifdef CYGFUN_HAL_COMMON_KERNEL_SUPPORT
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	734 .extern cyg_scheduler_sched_lock
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	735 ldr r3,.cyg_scheduler_sched_lock
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	736 ldr r4,[r3]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	737 add r4,r4,#1
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	738 str r4,[r3]
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	739 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	740
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	741 THUMB_MODE(r3,10)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	742
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	743 mov r0,v6
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	744 bl hal_IRQ_handler // determine interrupt source
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	745 mov v1,r0 // returned vector #
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	746
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	747 #if defined(CYGPKG_KERNEL_INSTRUMENT) && \
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	748 defined(CYGDBG_KERNEL_INSTRUMENT_INTR)
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	749 ldr r0,=RAISE_INTR // arg0 = type = INTR,RAISE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	750 mov r1,v1 // arg1 = vector
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	751 mov r2,#0 // arg2 = 0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	752 bl cyg_instrument // call instrument function
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	753 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	754
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	755 ARM_MODE(r0,10)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	756
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	757 mov r0,v1 // vector #
103 95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	758
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	759 #if defined(CYGDBG_HAL_DEBUG_GDB_CTRLC_SUPPORT) \
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	760 \|\| defined(CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT)
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	761 // If we are supporting Ctrl-C interrupts from GDB, we must squirrel
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	762 // away a pointer to the save interrupt state here so that we can
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	763 // plant a breakpoint at some later time.
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	764
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	765 .extern hal_saved_interrupt_state
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	766 ldr r2,=hal_saved_interrupt_state
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	767 str v6,[r2]
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	768 #endif
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	769
152 f935b880e96c Merge from eCos master repository on 2001-02-14-01:27:14-GMT jlarmour parents: 151 diff changeset	770 cmp r0,#CYGNUM_HAL_INTERRUPT_NONE // spurious interrupt
f935b880e96c Merge from eCos master repository on 2001-02-14-01:27:14-GMT jlarmour parents: 151 diff changeset	771 bne 10f
f935b880e96c Merge from eCos master repository on 2001-02-14-01:27:14-GMT jlarmour parents: 151 diff changeset	772 #ifndef CYGIMP_HAL_COMMON_INTERRUPTS_IGNORE_SPURIOUS
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 160 diff changeset	773 mov r0,v6 // register frame
152 f935b880e96c Merge from eCos master repository on 2001-02-14-01:27:14-GMT jlarmour parents: 151 diff changeset	774 bl hal_spurious_IRQ
f935b880e96c Merge from eCos master repository on 2001-02-14-01:27:14-GMT jlarmour parents: 151 diff changeset	775 #endif // CYGIMP_HAL_COMMON_INTERRUPTS_IGNORE_SPURIOUS
f935b880e96c Merge from eCos master repository on 2001-02-14-01:27:14-GMT jlarmour parents: 151 diff changeset	776 b spurious_IRQ
f935b880e96c Merge from eCos master repository on 2001-02-14-01:27:14-GMT jlarmour parents: 151 diff changeset	777
f935b880e96c Merge from eCos master repository on 2001-02-14-01:27:14-GMT jlarmour parents: 151 diff changeset	778 10: ldr r1,.hal_interrupt_data
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	779 ldr r1,[r1,v1,lsl #2] // handler data
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	780 ldr r2,.hal_interrupt_handlers
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	781 ldr v3,[r2,v1,lsl #2] // handler (indexed by vector #)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	782 mov r2,v6 // register frame (this is necessary
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	783 // for the ISR too, for ^C detection)
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	784
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	785 #ifdef __thumb__
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	786 ldr lr,=10f
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	787 bx v3 // invoke handler (thumb mode)
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	788 .pool
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	789 .code 16
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	790 .thumb_func
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	791 IRQ_10T:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	792 10: ldr r2,=15f
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	793 bx r2 // switch back to ARM mode
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	794 .pool
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	795 .code 32
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	796 15:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	797 IRQ_15A:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	798 #else
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	799 mov lr,pc // invoke handler (call indirect
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	800 mov pc,v3 // thru v3)
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	801 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	802
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	803 spurious_IRQ:
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	804
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	805 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	806 // If we are returning from the last nested interrupt, move back
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	807 // to the thread stack. interrupt_end() must be called on the
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	808 // thread stack since it potentially causes a context switch.
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	809 ldr r2,.irq_level
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	810 ldr r3,[r2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	811 subs r1,r3,#1
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	812 str r1,[r2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	813 ldreq sp,[sp] // This should be the saved stack pointer
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	814 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	815 #ifdef CYGFUN_HAL_COMMON_KERNEL_SUPPORT
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	816 // The return value from the handler (in r0) will indicate whether a
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	817 // DSR is to be posted. Pass this together with a pointer to the
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	818 // interrupt object we have just used to the interrupt tidy up routine.
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	819
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 160 diff changeset	820 // don't run this for spurious interrupts!
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 160 diff changeset	821 cmp v1,#CYGNUM_HAL_INTERRUPT_NONE
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 160 diff changeset	822 beq 17f
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	823 ldr r1,.hal_interrupt_objects
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	824 ldr r1,[r1,v1,lsl #2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	825 mov r2,v6 // register frame
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	826
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	827 THUMB_MODE(r3,10)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	828
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	829 bl interrupt_end // post any bottom layer handler
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	830 // threads and call scheduler
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 160 diff changeset	831 ARM_MODE(r1,10)
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 160 diff changeset	832 17:
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	833 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	834
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	835 // mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	836 // bl show_frame_out
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	837
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	838 mov ip,sp // get stack pointer
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	839
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	840 mrs r0,cpsr // move back to IRQ mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	841 orr r0,r0,#CPSR_IRQ_DISABLE\|CPSR_FIQ_DISABLE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	842 msr cpsr,r0
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	843 nop
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	844 nop
50 a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	845
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	846 ldr lr,[ip,#armreg_lr]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	847 ldr sp,[sp,#armreg_sp]
50 a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	848
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	849 bic r0,r0,#CPSR_MODE_BITS
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	850 orr r0,r0,#CPSR_IRQ_MODE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	851 msr cpsr,r0
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	852
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	853 mov sp,ip
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	854 ldr lr,[sp,#armreg_pc]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	855 ldr r0,[sp,#armreg_cpsr]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	856 ldr ip,[sp,#armreg_ip]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	857 msr spsr,r0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	858 ldmfd sp,{r0-r10,fp}
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	859 movs pc,lr // restore PC from LR, CPSR from SPSR
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	860
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	861 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	862 // Execute pending DSRs the interrupt stack
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	863 // Note: this can only be called from code running on a thread stack
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	864 FUNC_START_ARM(hal_interrupt_stack_call_pending_DSRs, r1)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	865 stmfd sp!,{r4,r5,lr}
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	866 // Disable interrupts
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	867 mrs r4,cpsr // disable IRQ's
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	868 orr r2,r4,#CPSR_IRQ_DISABLE\|CPSR_FIQ_DISABLE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	869 bic r5,r4,#CPSR_IRQ_DISABLE\|CPSR_FIQ_DISABLE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	870 msr cpsr,r2
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	871 // Switch to interrupt stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	872 mov r3,sp // save old stack pointer
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	873 ldr sp,.__interrupt_stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	874 stmfd sp!,{r3} // stored at top of interrupt stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	875 ldr r2,.irq_level // current number of nested interrupts
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	876 ldr r3,[r2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	877 add r3,r3,#1 // bump nesting level
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	878 str r3,[r2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	879 msr cpsr,r5 // enable interrupts
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	880
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	881 THUMB_MODE(r1,20)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	882
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	883 bl cyg_interrupt_call_pending_DSRs
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	884
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	885
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	886 ARM_MODE(r1,22)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	887
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	888 // Disable interrupts
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	889 mrs r1,cpsr // disable IRQ's
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	890 orr r2,r1,#CPSR_IRQ_DISABLE\|CPSR_FIQ_DISABLE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	891 msr cpsr,r2
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	892
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	893 // Move back to the thread stack.
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	894 ldr r2,.irq_level
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	895 ldr r3,[r2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	896 sub r3,r3,#1 // decrement nesting level
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	897 str r3,[r2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	898 ldr sp,[sp] // This should be the saved stack pointer
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	899 msr cpsr,r4 // restore interrupts to original state
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	900
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	901 #ifdef __thumb__
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	902 ldmfd sp!,{r4,r5,lr} // return
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	903 bx lr
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	904 #else
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	905 ldmfd sp!,{r4,r5,pc} // return
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	906 #endif // __thumb__
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	907 #endif // CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
14 01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 10 diff changeset	908
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	909 // Thumb-only support functions
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	910 #ifdef __thumb__
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	911
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	912 FUNC_START_ARM(hal_disable_interrupts, r1)
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	913 mrs r0,cpsr // current state
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	914 orr r1,r0,#0xC0 // mask both FIQ and IRQ
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	915 msr cpsr,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	916 bx lr // exit, _old_ in r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	917
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	918 FUNC_START_ARM(hal_enable_interrupts, r1)
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	919 mrs r0,cpsr // current state
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	920 bic r1,r0,#0xC0 // mask both FIQ and IRQ
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	921 msr cpsr,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	922 bx lr // exit
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	923
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	924 FUNC_START_ARM(hal_restore_interrupts, r1)
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	925 mrs r1,cpsr // current state
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	926 bic r1,r1,#0xC0 // mask out FIQ/IRQ bits
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	927 and r0,r0,#0xC0 // keep only FIQ/IRQ
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	928 orr r1,r1,r0 // mask both FIQ and IRQ
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	929 msr cpsr,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	930 bx lr // exit
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	931
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	932 FUNC_START_ARM(hal_query_interrupts, r1)
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	933 mrs r0,cpsr // current state
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	934 bx lr // exit, state in r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	935
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	936 #endif // __thumb__
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	937
34 29bc183297e1 Merge from eCos master repository on 1999-09-02-16:26:10-BST jlarmour parents: 28 diff changeset	938 // Dummy/support functions
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	939
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	940 .global __gccmain
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	941 .global _psr
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	942 .global _sp
34 29bc183297e1 Merge from eCos master repository on 1999-09-02-16:26:10-BST jlarmour parents: 28 diff changeset	943
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	944 #ifdef __thumb__
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	945 .code 16
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	946 .thumb_func
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	947 __gccmain:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	948 bx lr
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	949
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	950 .code 16
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	951 .thumb_func
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	952 _psr:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	953 ARM_MODE(r1,10)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	954 mrs r0,cpsr
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	955 bx lr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	956
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	957 .code 16
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	958 .thumb_func
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	959 _sp:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	960 mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	961 bx lr
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	962 #else
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	963 __gccmain:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	964 mov pc,lr
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	965
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	966 _psr:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	967 mrs r0,cpsr
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	968 mov pc,lr
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	969
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	970 _sp:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	971 mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	972 mov pc,lr
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	973 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	974
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	975
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	976 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	977 // Pointers to various objects.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	978 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	979 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	980 PTR(__GDB_stack_base)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	981 PTR(__GDB_stack)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	982 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	983 PTR(__startup_stack)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	984 PTR(__exception_stack)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	985 PTR(__undef_exception_stack)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	986 PTR(__bss_start)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	987 PTR(__bss_end)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	988 PTR(_end)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	989 PTR(__rom_data_start)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	990 PTR(__ram_data_start)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	991 PTR(__ram_data_end)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	992 PTR(hal_interrupt_handlers)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	993 PTR(hal_interrupt_data)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	994 PTR(hal_interrupt_objects)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	995 PTR(__exception_handlers)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	996 PTR(init_flag)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	997 #ifdef CYGFUN_HAL_COMMON_KERNEL_SUPPORT
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	998 PTR(cyg_scheduler_sched_lock)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	999 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1000 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1001 PTR(irq_level)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1002 PTR(__interrupt_stack)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1003 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1004
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	1005 //
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	1006 // Identification - useful to find out when a system was configured
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	1007 _eCos_id:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1008 .asciz "eCos : " __DATE__
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	1009
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1010
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1011 // -------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1012 // Interrupt vector tables.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1013 // These tables contain the isr, data and object pointers used to deliver
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1014 // interrupts to user code.
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	1015
306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	1016 // Despite appearances, their sizes are not #defines, but .equ symbols
306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	1017 // generated by magic without proper dependencies in arm.inc
306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	1018 // Recompiling will not DTRT without manual intervention.
306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	1019
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1020 .data
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1021
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1022 init_flag:
150 f0e3fb000de8 Merge from eCos master repository on 2001-01-26-06:43:02-GMT jlarmour parents: 148 diff changeset	1023 .balign 4
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1024 .long 0
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1025
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1026 .extern hal_default_isr
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1027
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1028 .globl hal_interrupt_handlers
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1029 hal_interrupt_handlers:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1030 .rept CYGNUM_HAL_ISR_COUNT
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1031 .long hal_default_isr
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1032 .endr
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1033
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1034 .globl hal_interrupt_data
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1035 hal_interrupt_data:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1036 .rept CYGNUM_HAL_ISR_COUNT
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1037 .long 0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1038 .endr
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1039
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1040 .globl hal_interrupt_objects
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1041 hal_interrupt_objects:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1042 .rept CYGNUM_HAL_ISR_COUNT
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1043 .long 0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1044 .endr
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1045
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1046 // -------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1047 // Temporary interrupt stack
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1048
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1049 .section ".bss"
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1050
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1051 // Small stacks, only used for saving information between CPU modes
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1052 __exception_stack_base:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1053 .rept 32
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1054 .long 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1055 .endr
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1056 __exception_stack:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1057 .rept 32
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1058 .long 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1059 .endr
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1060 __undef_exception_stack:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1061
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1062 // Runtime stack used during all interrupt processing
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1063 #ifndef CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1064 #define CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE 4096
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1065 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1066 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1067 .balign 16
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1068 .global cyg_interrupt_stack_base
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	1069 cyg_interrupt_stack_base:
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1070 __interrupt_stack_base:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1071 .rept CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1072 .byte 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1073 .endr
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1074 .balign 16
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1075 .global cyg_interrupt_stack
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	1076 cyg_interrupt_stack:
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1077 __interrupt_stack:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1078 irq_level:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1079 .long 0
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1080 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1081
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1082 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1083 .balign 16
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1084 __GDB_stack_base:
156 b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: 154 diff changeset	1085 .rept CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE // rather than 1k
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1086 .byte 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1087 .endr
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1088 __GDB_stack:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1089 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1090 .balign 16
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1091 __startup_stack_base:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1092 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1093 .rept 512
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1094 #else
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1095 .rept CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1096 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1097 .byte 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1098 .endr
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1099 .balign 16
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1100 __startup_stack:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1101
56 755351606154 Merge from eCos master repository on 1999-12-01-18:03:05-GMT jlarmour parents: 54 diff changeset	1102 #ifdef PLATFORM_EXTRAS
755351606154 Merge from eCos master repository on 1999-12-01-18:03:05-GMT jlarmour parents: 54 diff changeset	1103 #include PLATFORM_EXTRAS
755351606154 Merge from eCos master repository on 1999-12-01-18:03:05-GMT jlarmour parents: 54 diff changeset	1104 #endif
755351606154 Merge from eCos master repository on 1999-12-01-18:03:05-GMT jlarmour parents: 54 diff changeset	1105
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1106 // --------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1107 // end of vectors.S

Mercurial > ecos

annotate packages/hal/arm/arch/current/src/vectors.S @ 172:cd45958b28ff