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

annotate packages/hal/arm/arch/current/src/vectors.S @ 159:511f4dc167f6

Merge from eCos master repository on 2001-05-18-01:30:05-BST

author	jlarmour
date	Fri, 18 May 2001 06:32:28 +0000
parents	f2545e5de153
children	0d0f03f76f6a

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"
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	159 .global __exception_handlers
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	160 __exception_handlers:
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 158 diff changeset	161 #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	162 // 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	163 // 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	164 b reset_vector // 0x00
e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	165 #else
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	166 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	167 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	168 ldr pc,.undefined_instruction // 0x04
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	169 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	170 ldr pc,.abort_prefetch // 0x0C
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	171 ldr pc,.abort_data // 0x10
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	172 .word 0 // unused
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	173 ldr pc,.IRQ // 0x18
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	174 ldr pc,.FIQ // 0x1C
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	175
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	176 // 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	177 // 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	178 .global vectors
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	179 vectors:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	180 UNMAPPED_PTR(reset_vector) // 0x20
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	181 PTR(undefined_instruction) // 0x24
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	182 PTR(software_interrupt) // 0x28
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	183 PTR(abort_prefetch) // 0x2C
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	184 PTR(abort_data) // 0x30
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	185 .word 0 // 0x34
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	186 PTR(IRQ) // 0x38
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	187 PTR(FIQ) // 0x3c
154 e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	188 #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	189 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	190 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	191 // 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	192 // for some platforms.
103 95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	193
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	194 //
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	195 // "Vectors" - fixed location data items
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	196 // 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	197 // 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	198 // ROM.
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	199 //
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	200 .section ".fixed_vectors"
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	201 // Interrupt/exception VSR pointers
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	202 .globl hal_vsr_table
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	203 hal_vsr_table:
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	204 .rept 8
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	205 .long 0
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	206 .endr
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	207
103 95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	208 .globl hal_dram_size
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	209 hal_dram_size:
148 8f2f7615e727 Merge from eCos master repository on 2001-01-12-06:43:03-GMT jlarmour parents: 145 diff changeset	210 .long 0
8f2f7615e727 Merge from eCos master repository on 2001-01-12-06:43:03-GMT jlarmour parents: 145 diff changeset	211 // 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	212 .globl hal_dram_type
8f2f7615e727 Merge from eCos master repository on 2001-01-12-06:43:03-GMT jlarmour parents: 145 diff changeset	213 hal_dram_type:
8f2f7615e727 Merge from eCos master repository on 2001-01-12-06:43:03-GMT jlarmour parents: 145 diff changeset	214 .long 0
103 95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	215
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	216 .balign 16
110 84e4bde58b26 Merge from eCos master repository on 2000-07-14-22:00:02-BST jlarmour parents: 108 diff changeset	217 #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	218 // 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	219 .globl hal_virtual_vector_table
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	220 hal_virtual_vector_table:
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	221 .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	222 .long 0
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	223 .endr
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	224 #endif
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	225
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	226 .balign 32
96 b15c60e34c84 Merge from eCos master repository on 2000-06-06-05:24:42-BST jlarmour parents: 80 diff changeset	227
b15c60e34c84 Merge from eCos master repository on 2000-06-06-05:24:42-BST jlarmour parents: 80 diff changeset	228 // 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	229 #ifdef PLATFORM_VECTORS
b15c60e34c84 Merge from eCos master repository on 2000-06-06-05:24:42-BST jlarmour parents: 80 diff changeset	230 PLATFORM_VECTORS
b15c60e34c84 Merge from eCos master repository on 2000-06-06-05:24:42-BST jlarmour parents: 80 diff changeset	231 #endif
b15c60e34c84 Merge from eCos master repository on 2000-06-06-05:24:42-BST jlarmour parents: 80 diff changeset	232
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	233 .text
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	234 // 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	235 .global reset_vector
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	236 .type reset_vector,function
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	237 reset_vector:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	238 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	239 // 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	240 // 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	241
54 f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	242 // Come here to reset board
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	243 warm_reset:
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	244
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	245 #if defined(CYG_HAL_STARTUP_RAM) && \
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	246 !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	247 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	248 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	249 cmp r7,#CPSR_SUPERVISOR_MODE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	250 beq start
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	251 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	252
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	253 // 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	254 LED 7
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	255
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	256 mov r0,#0 // move vectors
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	257 ldr r1,=__exception_handlers
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 34 diff changeset	258 #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	259 // 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	260 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	261 str r2,[r0,#0x04]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	262 ldr r2,[r1,#0x24]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	263 str r2,[r0,#0x24]
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 34 diff changeset	264 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	265 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	266 str r2,[r0,#0x08]
46 797268ecc331 Merge from eCos master repository on 1999-10-19-18:55:31-BST jlarmour parents: 40 diff changeset	267
797268ecc331 Merge from eCos master repository on 1999-10-19-18:55:31-BST jlarmour parents: 40 diff changeset	268
154 e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	269 #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	270 // 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	271 ldr r2,[r1,#0x40]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	272 str r2,[r0,#0x28]
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	273
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	274 LED 6
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	275
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	276 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	277 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	278
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	279 // =========================================================================
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	280 // 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	281 .globl start
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	282 start:
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	283
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	284 LED 5
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	285
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	286 #if defined(CYG_HAL_STARTUP_RAM) && \
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	287 !defined(CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	288 // 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	289 ldr r0,.init_flag
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	290 ldr r1,[r0]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	291 1: cmp r1,#0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	292 bne 1b
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	293 ldr r1,init_done
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	294 str r1,[r0]
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	295 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	296
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	297 // Reset software interrupt pointer
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	298 mov r0,#0 // move vectors
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	299 ldr r1,.__exception_handlers
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	300 #if defined(CYG_HAL_STARTUP_RAM) && \
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	301 !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	302 cmp r7,#CPSR_SUPERVISOR_MODE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	303 beq 10f
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	304 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	305 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	306 str r2,[r0,#0x28]
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	307 10:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	308 ldr r2,[r1,#0x18] // IRQ
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	309 str r2,[r0,#0x18]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	310 ldr r2,[r1,#0x38]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	311 str r2,[r0,#0x38]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	312 ldr r2,[r1,#0x1C] // FIQ
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	313 str r2,[r0,#0x1C]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	314 ldr r2,[r1,#0x3C]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	315 str r2,[r0,#0x3C]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	316 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	317 str r2,[r0,#0x0C]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	318 ldr r2,[r1,#0x2C]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	319 str r2,[r0,#0x2C]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	320 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	321 str r2,[r0,#0x10]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	322 ldr r2,[r1,#0x30]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	323 str r2,[r0,#0x30]
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	324
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	325 LED 4
50 a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	326
70 c5536bad4c24 Merge from eCos master repository on 2000-02-11-15:46:40-GMT jlarmour parents: 66 diff changeset	327 #if defined(CYG_HAL_STARTUP_ROM)
54 f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	328 // Set up reset vector
132 0ae0bc38e387 Merge from eCos master repository on 2000-10-31-00:30:36-GMT jlarmour parents: 112 diff changeset	329 mov r0,#0
0ae0bc38e387 Merge from eCos master repository on 2000-10-31-00:30:36-GMT jlarmour parents: 112 diff changeset	330 ldr r1,.__exception_handlers
54 f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	331 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	332 str r2,[r0,#0x00]
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	333 ldr r2,=warm_reset
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	334 str r2,[r0,#0x20]
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	335 // 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	336 ldr r3,.__rom_data_start
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	337 ldr r4,.__ram_data_start
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	338 ldr r5,.__ram_data_end
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	339 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	340 beq 2f
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	341 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	342 sub r4,r4,#4
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	343 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	344 str r0,[r4,#4]!
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	345 cmp r4,r5
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	346 bne 1b
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	347 2:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	348 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	349
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	350 // initialize interrupt/exception environments
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	351 ldr sp,.__startup_stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	352 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	353 msr cpsr,r0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	354 ldr sp,.__exception_stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	355 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	356 msr cpsr,r0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	357 ldr sp,.__exception_stack
2 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 CPSR (machine state register)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	360 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	361 msr cpsr,r0
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	362
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	363 // 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	364 msr spsr,r0
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	365
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	366 // initialize stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	367 ldr sp,.__startup_stack
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	368
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	369 // clear BSS
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	370 ldr r1,.__bss_start
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	371 ldr r2,.__bss_end
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	372 mov r0,#0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	373 cmp r1,r2
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	374 beq 2f
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	375 1: str r0,[r1],#4
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	376 cmp r1,r2
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	377 bne 1b
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	378 2:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	379
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	380 // 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	381 THUMB_MODE(r1,10)
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	382
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	383 LED 3
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	384
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	385 // Call platform specific hardware initialization
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	386 bl hal_hardware_init
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	387
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 34 diff changeset	388 #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	389 bl initialize_stub
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 34 diff changeset	390
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	391 // 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	392 // 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	393 // 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	394 // 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	395 #endif
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	396
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	397 #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	398 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	399 mov r0,#0 // move vectors
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	400 ldr r1,=__exception_handlers
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	401 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	402 str r2,[r0,#0x04]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	403 ldr r2,[r1,#0x24]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	404 str r2,[r0,#0x24]
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 34 diff changeset	405 #endif
112 02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 110 diff changeset	406
103 95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	407 #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	408 \|\| 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	409 .extern hal_ctrlc_isr_init
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	410 bl hal_ctrlc_isr_init
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	411 #endif
151 25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	412
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	413 LED 2
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	414
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	415 // Run through static constructors
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	416 bl cyg_hal_invoke_constructors
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	417
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	418 LED 1
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	419
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	420 // 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	421 bl cyg_start
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	422 _start_hang:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	423 b _start_hang
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	424 .code 32
54 f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	425
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	426 .global reset_platform
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	427 .type reset_platform,function
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	428 reset_platform:
70 c5536bad4c24 Merge from eCos master repository on 2000-02-11-15:46:40-GMT jlarmour parents: 66 diff changeset	429 #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	430 // initialize CPSR (machine state register)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	431 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	432 msr cpsr,r0
54 f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	433 b warm_reset
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	434 #else
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	435 mov r0,#0
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	436 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	437 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	438
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	439 init_done:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	440 .long 0xDEADB00B
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	441
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	442 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	443 // Exception handlers
46 797268ecc331 Merge from eCos master repository on 1999-10-19-18:55:31-BST jlarmour parents: 40 diff changeset	444 // Assumption: get here from a Supervisor context [mode]
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	445 //
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	446 .code 32
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	447 undefined_instruction:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	448 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	449 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	450 mrs r0,spsr
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	451 stmfd sp!,{r0}
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	452 mov ip,sp // save SP which will vanish with
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	453 // mode switch
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	454 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	455 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	456 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	457 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	458 mov fp,sp
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	459 #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	460 ldr sp,.__GDB_stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	461 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	462 bhi 10f
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	463 ldr r0,.__GDB_stack_base
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	464 cmp fp,r0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	465 bls 10f // no - switch to GDB stack
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	466 // (already in sp)
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	467 mov sp,fp // yes - no switch
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	468 10:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	469 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	470 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	471 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	472 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	473 // 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	474 tst r0,#CPSR_THUMB_ENABLE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	475 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	476 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	477 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	478 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	479 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	480 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	481 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	482 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	483 add r0,ip,#ARMREG_SIZE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	484 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	485 #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	486 mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	487 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	488 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	489 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	490 b call_exception_handler
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	491
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	492 .code 32
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	493 software_interrupt:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	494 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	495 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	496 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	497 // 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	498 tst r0,#CPSR_THUMB_ENABLE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	499 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	500 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	501 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	502 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	503 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	504 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	505 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	506 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	507 #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	508 mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	509 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	510 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	511 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	512 b call_exception_handler
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	513
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	514 .code 32
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	515 abort_prefetch:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	516 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	517 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	518 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	519 mrs r0,spsr
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	520 stmfd sp!,{r0}
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	521 mov ip,sp // save SP which will vanish with
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	522 // mode switch
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	523 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	524 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	525 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	526 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	527 mov fp,sp
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	528 #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	529 ldr sp,.__GDB_stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	530 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	531 bhi 10f
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	532 ldr r0,.__GDB_stack_base
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	533 cmp fp,r0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	534 bls 10f // no - switch to GDB stack
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	535 // (already in sp)
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	536 mov sp,fp // yes - no switch
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	537 10:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	538 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	539 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	540 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	541 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	542 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	543 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	544 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	545 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	546 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	547 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	548 add r0,ip,#ARMREG_SIZE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	549 str fp,[sp,#armreg_sp] // SP at time of interrupt
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	550 #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	551 mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	552 bl cyg_hal_report_abort_prefetch
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	553 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	554 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	555 b call_exception_handler
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	556
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	557 .code 32
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	558 abort_data:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	559 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	560 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	561 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	562 mrs r0,spsr
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	563 stmfd sp!,{r0}
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	564 mov ip,sp // save SP which will vanish with
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	565 // mode switch
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	566 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	567 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	568 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	569 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	570 mov fp,sp
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	571 #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	572 ldr sp,.__GDB_stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	573 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	574 bhi 10f
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	575 ldr r0,.__GDB_stack_base
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	576 cmp fp,r0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	577 bls 10f // no - switch to GDB stack
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	578 // (already in sp)
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	579 mov sp,fp // yes - no switch
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	580 10:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	581 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	582 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	583 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	584 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	585 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	586 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	587 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	588 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	589 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	590 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	591 add r0,ip,#ARMREG_SIZE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	592 str fp,[sp,#armreg_sp] // SP at time of interrupt
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	593 #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	594 mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	595 bl cyg_hal_report_abort_data
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	596 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	597 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	598 b call_exception_handler
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	599
20 5f5102441818 Merge from eCos master repository on 1999-07-02-23:17:07-BST jlarmour parents: 16 diff changeset	600
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	601 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	602 // Dispatch an exception handler.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	603
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	604 .code 32
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	605 call_exception_handler:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	606 str v1,[sp,#armreg_vector]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	607 mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	608
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	609 THUMB_MODE(r9,10)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	610
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	611 bl exception_handler
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	612 #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	613 mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	614 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	615 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	616
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	617 ARM_MODE(r1,10)
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	618
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	619 // Restore [interrupted] context
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	620 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	621
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	622 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	623 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	624 msr cpsr,r0
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	625 nop
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	626 nop
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	627
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	628 ldr lr,[ip,#armreg_lr]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	629 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	630
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	631 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	632 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	633 msr cpsr,r0
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	634
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	635 mov sp,ip
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	636 ldr lr,[sp,#armreg_pc]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	637 ldr r0,[sp,#armreg_cpsr]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	638 ldr ip,[sp,#armreg_ip]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	639 msr spsr,r0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	640 ldmfd sp,{r0-r10,fp}
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	641
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	642 movs pc,lr // restore PC from LR, CPSR from SPSR
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	643
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	644 // Handle device interrupts
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	645 // This is slightly more complicated than the other exception handlers because
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	646 // it needs to interface with the kernel (if present).
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	647
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	648 .code 32
20 5f5102441818 Merge from eCos master repository on 1999-07-02-23:17:07-BST jlarmour parents: 16 diff changeset	649 FIQ:
151 25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	650 // 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	651 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	652 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	653 cmp r9,#CPSR_IRQ_MODE
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	654 bne 1f
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	655 // 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	656 // 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	657 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	658 msr spsr,r8
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	659 subs pc,lr,#4
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	660 1:
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	661 // 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	662 // fall through to IRQ handler.
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	663 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	664 stmdb sp,{r8,lr}
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	665 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	666 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	667 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	668 ldmdb sp,{sp,lr}
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	669 msr spsr,sp
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	670
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	671 // 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	672 // 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	673
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	674 IRQ:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	675 // 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	676 // 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	677 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	678 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	679 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	680 mrs r0,spsr
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	681 stmfd sp!,{r0}
20 5f5102441818 Merge from eCos master repository on 1999-07-02-23:17:07-BST jlarmour parents: 16 diff changeset	682
5f5102441818 Merge from eCos master repository on 1999-07-02-23:17:07-BST jlarmour parents: 16 diff changeset	683 handle_IRQ_or_FIQ:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	684 mov ip,sp // save SP which will vanish with
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	685 // mode switch
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	686 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	687 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	688 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	689 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	690 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	691 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	692 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	693 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	694 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	695 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	696 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	697 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	698 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	699 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	700 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	701 mov v6,sp // Save pointer to register frame
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	702
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	703 // mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	704 // bl _show_frame_in
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	705
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	706 #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	707 // Switch to interrupt stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	708 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	709 ldr r0,[r2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	710 add r1,r0,#1
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	711 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	712 cmp r0,#0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	713 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	714 ldreq sp,.__interrupt_stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	715 stmeqfd sp!,{r1}
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	716 10:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	717 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	718
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	719 // 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	720 // increment the scheduler lock and handle the interrupt
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	721
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	722 #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	723 .extern cyg_scheduler_sched_lock
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	724 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	725 ldr r4,[r3]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	726 add r4,r4,#1
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	727 str r4,[r3]
2 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 THUMB_MODE(r3,10)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	731
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	732 mov r0,v6
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	733 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	734 mov v1,r0 // returned vector #
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	735
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	736 #if defined(CYGPKG_KERNEL_INSTRUMENT) && \
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	737 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	738 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	739 mov r1,v1 // arg1 = vector
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	740 mov r2,#0 // arg2 = 0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	741 bl cyg_instrument // call instrument function
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	742 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	743
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	744 ARM_MODE(r0,10)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	745
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	746 mov r0,v1 // vector #
103 95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	747
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	748 #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	749 \|\| 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	750 // 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	751 // 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	752 // 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	753
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	754 .extern hal_saved_interrupt_state
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	755 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	756 str v6,[r2]
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	757 #endif
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	758
152 f935b880e96c Merge from eCos master repository on 2001-02-14-01:27:14-GMT jlarmour parents: 151 diff changeset	759 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	760 bne 10f
f935b880e96c Merge from eCos master repository on 2001-02-14-01:27:14-GMT jlarmour parents: 151 diff changeset	761 #ifndef 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	762 bl hal_spurious_IRQ
f935b880e96c Merge from eCos master repository on 2001-02-14-01:27:14-GMT jlarmour parents: 151 diff changeset	763 #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	764 b spurious_IRQ
f935b880e96c Merge from eCos master repository on 2001-02-14-01:27:14-GMT jlarmour parents: 151 diff changeset	765
f935b880e96c Merge from eCos master repository on 2001-02-14-01:27:14-GMT jlarmour parents: 151 diff changeset	766 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	767 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	768 ldr r2,.hal_interrupt_handlers
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	769 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	770 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	771 // for the ISR too, for ^C detection)
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	772
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	773 #ifdef __thumb__
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	774 ldr lr,=10f
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	775 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	776 .pool
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	777 .code 16
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	778 .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	779 IRQ_10T:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	780 10: ldr r2,=15f
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	781 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	782 .pool
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	783 .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	784 15:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	785 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	786 #else
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	787 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	788 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	789 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	790
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	791 spurious_IRQ:
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	792
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	793 #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	794 // 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	795 // 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	796 // 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	797 ldr r2,.irq_level
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	798 ldr r3,[r2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	799 subs r1,r3,#1
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	800 str r1,[r2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	801 ldreq sp,[sp] // This should be the saved stack pointer
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	802 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	803 #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	804 // 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	805 // 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	806 // 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	807
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	808 ldr r1,.hal_interrupt_objects
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	809 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	810 mov r2,v6 // register frame
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	811
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	812 THUMB_MODE(r3,10)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	813
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	814 bl interrupt_end // post any bottom layer handler
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	815 // threads and call scheduler
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	816 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	817
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	818 ARM_MODE(r1,10)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	819
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	820 // mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	821 // bl show_frame_out
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	822
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	823 mov ip,sp // get stack pointer
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	824
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	825 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	826 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	827 msr cpsr,r0
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	828 nop
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	829 nop
50 a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	830
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	831 ldr lr,[ip,#armreg_lr]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	832 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	833
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	834 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	835 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	836 msr cpsr,r0
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 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 sp,ip
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	839 ldr lr,[sp,#armreg_pc]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	840 ldr r0,[sp,#armreg_cpsr]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	841 ldr ip,[sp,#armreg_ip]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	842 msr spsr,r0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	843 ldmfd sp,{r0-r10,fp}
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	844 movs pc,lr // restore PC from LR, CPSR from SPSR
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	845
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	846 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	847 // Execute pending DSRs the interrupt stack
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	848 // 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	849 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	850 stmfd sp!,{r4,r5,lr}
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	851 // Disable interrupts
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	852 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	853 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	854 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	855 msr cpsr,r2
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	856 // Switch to interrupt stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	857 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	858 ldr sp,.__interrupt_stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	859 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	860 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	861 ldr r3,[r2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	862 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	863 str r3,[r2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	864 msr cpsr,r5 // enable interrupts
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	865
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	866 THUMB_MODE(r1,20)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	867
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	868 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	869
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	870
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	871 ARM_MODE(r1,22)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	872
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	873 // Disable interrupts
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	874 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	875 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	876 msr cpsr,r2
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	877
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	878 // 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	879 ldr r2,.irq_level
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	880 ldr r3,[r2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	881 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	882 str r3,[r2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	883 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	884 msr cpsr,r4 // restore interrupts to original state
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	885
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	886 #ifdef __thumb__
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	887 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	888 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	889 #else
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	890 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	891 #endif // __thumb__
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	892 #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	893
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	894 // 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	895 #ifdef __thumb__
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	896
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	897 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	898 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	899 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	900 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	901 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	902
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	903 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	904 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	905 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	906 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	907 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	908
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	909 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	910 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	911 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	912 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	913 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	914 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	915 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	916
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	917 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	918 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	919 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	920
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	921 #endif // __thumb__
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	922
34 29bc183297e1 Merge from eCos master repository on 1999-09-02-16:26:10-BST jlarmour parents: 28 diff changeset	923 // Dummy/support functions
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	924
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	925 .global __gccmain
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	926 .global _psr
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	927 .global _sp
34 29bc183297e1 Merge from eCos master repository on 1999-09-02-16:26:10-BST jlarmour parents: 28 diff changeset	928
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	929 #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	930 .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	931 .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	932 __gccmain:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	933 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	934
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	935 .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	936 .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	937 _psr:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	938 ARM_MODE(r1,10)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	939 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	940 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	941
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	942 .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	943 .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	944 _sp:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	945 mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	946 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	947 #else
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	948 __gccmain:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	949 mov pc,lr
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	950
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	951 _psr:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	952 mrs r0,cpsr
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	953 mov pc,lr
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	954
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	955 _sp:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	956 mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	957 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	958 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	959
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	960
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	961 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	962 // Pointers to various objects.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	963 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	964 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	965 PTR(__GDB_stack_base)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	966 PTR(__GDB_stack)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	967 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	968 PTR(__startup_stack)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	969 PTR(__exception_stack)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	970 PTR(__undef_exception_stack)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	971 PTR(__bss_start)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	972 PTR(__bss_end)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	973 PTR(_end)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	974 PTR(__rom_data_start)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	975 PTR(__ram_data_start)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	976 PTR(__ram_data_end)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	977 PTR(hal_interrupt_handlers)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	978 PTR(hal_interrupt_data)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	979 PTR(hal_interrupt_objects)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	980 PTR(__exception_handlers)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	981 PTR(init_flag)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	982 #ifdef CYGFUN_HAL_COMMON_KERNEL_SUPPORT
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	983 PTR(cyg_scheduler_sched_lock)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	984 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	985 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	986 PTR(irq_level)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	987 PTR(__interrupt_stack)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	988 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	989
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	990 //
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	991 // 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	992 _eCos_id:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	993 .asciz "eCos : " __DATE__
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	994
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	995
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	996 // -------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	997 // Interrupt vector tables.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	998 // 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	999 // interrupts to user code.
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	1000
306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	1001 // 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	1002 // 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	1003 // 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	1004
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1005 .data
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1006
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1007 init_flag:
150 f0e3fb000de8 Merge from eCos master repository on 2001-01-26-06:43:02-GMT jlarmour parents: 148 diff changeset	1008 .balign 4
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1009 .long 0
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1010
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1011 .extern hal_default_isr
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1012
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1013 .globl hal_interrupt_handlers
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1014 hal_interrupt_handlers:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1015 .rept CYGNUM_HAL_ISR_COUNT
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1016 .long hal_default_isr
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1017 .endr
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1018
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1019 .globl hal_interrupt_data
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1020 hal_interrupt_data:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1021 .rept CYGNUM_HAL_ISR_COUNT
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1022 .long 0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1023 .endr
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1024
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1025 .globl hal_interrupt_objects
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1026 hal_interrupt_objects:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1027 .rept CYGNUM_HAL_ISR_COUNT
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1028 .long 0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1029 .endr
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1030
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1031 // -------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1032 // Temporary interrupt stack
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1033
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1034 .section ".bss"
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1035
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1036 // Small stacks, only used for saving information between CPU modes
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1037 __exception_stack_base:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1038 .rept 32
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1039 .long 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1040 .endr
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1041 __exception_stack:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1042 .rept 32
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1043 .long 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1044 .endr
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1045 __undef_exception_stack:
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 // Runtime stack used during all interrupt processing
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1048 #ifndef CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1049 #define CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE 4096
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1050 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1051 #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	1052 .balign 16
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1053 .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	1054 cyg_interrupt_stack_base:
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1055 __interrupt_stack_base:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1056 .rept CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1057 .byte 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1058 .endr
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1059 .balign 16
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1060 .global cyg_interrupt_stack
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	1061 cyg_interrupt_stack:
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1062 __interrupt_stack:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1063 irq_level:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1064 .long 0
2 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
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1067 #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	1068 .balign 16
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1069 __GDB_stack_base:
156 b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: 154 diff changeset	1070 .rept CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE // rather than 1k
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1071 .byte 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1072 .endr
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1073 __GDB_stack:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1074 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1075 .balign 16
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1076 __startup_stack_base:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1077 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1078 .rept 512
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1079 #else
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1080 .rept CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1081 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1082 .byte 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1083 .endr
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1084 .balign 16
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1085 __startup_stack:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1086
56 755351606154 Merge from eCos master repository on 1999-12-01-18:03:05-GMT jlarmour parents: 54 diff changeset	1087 #ifdef PLATFORM_EXTRAS
755351606154 Merge from eCos master repository on 1999-12-01-18:03:05-GMT jlarmour parents: 54 diff changeset	1088 #include PLATFORM_EXTRAS
755351606154 Merge from eCos master repository on 1999-12-01-18:03:05-GMT jlarmour parents: 54 diff changeset	1089 #endif
755351606154 Merge from eCos master repository on 1999-12-01-18:03:05-GMT jlarmour parents: 54 diff changeset	1090
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1091 // --------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1092 // end of vectors.S

Mercurial > ecos

annotate packages/hal/arm/arch/current/src/vectors.S @ 159:511f4dc167f6