flash_v2: packages/hal/mips/arch/current/src/vectors.S annotate

annotate packages/hal/mips/arch/current/src/vectors.S @ 112:02ea4320376c ecos-sw-2000-07-21

Merge from eCos master repository on 2000-07-21-21:01:39-BST

author	jlarmour
date	Fri, 21 Jul 2000 21:34:11 +0000
parents	08ffab08d2ee
children	6ed91473a1cd

rev	line source
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	1 ##=============================================================================
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	2 ##
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	3 ## vectors.S
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	4 ##
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	5 ## MIPS exception vectors
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	6 ##
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	7 ##=============================================================================
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	8 #####COPYRIGHTBEGIN####
64 c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	9 #
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	10 # -------------------------------------------
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 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: 62 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: 62 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: 62 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: 62 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: 62 diff changeset	19 # the License.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	20 #
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 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: 62 diff changeset	22 # released September 30, 1998.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	23 #
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 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: 62 diff changeset	25 # Portions created by Red Hat are
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	26 # Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	27 # All Rights Reserved.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	28 # -------------------------------------------
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	29 #
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	30 #####COPYRIGHTEND####
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	31 ##=============================================================================
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	32 #######DESCRIPTIONBEGIN####
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	33 ##
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	34 ## Author(s): nickg
112 02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 92 diff changeset	35 ## Contributors: nickg, dmoseley
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	36 ## Date: 1998-02-04
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	37 ## Purpose: MIPS exception vectors
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	38 ## Description: This file defines the code placed into the exception
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	39 ## vectors. It also contains the first level default VSRs
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	40 ## that save and restore state for both exceptions and
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	41 ## interrupts.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	42 ##
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	43 ######DESCRIPTIONEND####
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	44 ##
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	45 ##=============================================================================
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	46
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	47 #include <pkgconf/system.h>
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	48 #include <pkgconf/hal.h>
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	49
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	50 #ifdef CYGPKG_KERNEL
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	51 # include <pkgconf/kernel.h>
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	52 #endif
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	53
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	54 #include <cyg/hal/arch.inc>
112 02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 92 diff changeset	55 #include <cyg/hal/hal_arch.h>
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 92 diff changeset	56
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 92 diff changeset	57 #ifdef at
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 92 diff changeset	58 #undef at
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 92 diff changeset	59 #endif
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	60 .extern cyg_instrument
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	61
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	62 ##-----------------------------------------------------------------------------
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	63 ## Hardware supplied vectors
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	64
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	65 .set noreorder
92 08ffab08d2ee Merge from eCos master repository on 2000-05-26-07:47:03-BST jlarmour parents: 90 diff changeset	66
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	67 .section ".reset_vector","ax"
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	68
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	69 # Reset vector at 0xBFC00000
90 70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	70
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	71 FUNC_START(reset_vector)
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	72
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	73 #ifndef CYG_HAL_STARTUP_RAM
112 02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 92 diff changeset	74 # if defined(CYGPKG_HAL_RESET_VECTOR_FIRST_CODE)
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 92 diff changeset	75 hal_reset_vector_first_code
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 92 diff changeset	76 # endif
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 92 diff changeset	77 # if defined(CYGPKG_HAL_EARLY_INIT)
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 92 diff changeset	78 hal_early_init
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 92 diff changeset	79 # endif
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	80 # Decide whether this is an NMI, cold or warm boot.
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	81
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	82 mfc0 k0,status # get status reg
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	83 lui k1,0x0008 # isolate NMI bit
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	84 and k1,k1,k0
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	85 beqz k1,1f # skip if zero
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	86 nop
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	87
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	88 lar k1,__nmi_entry # jump to ROM nmi code
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	89 jalr k1
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	90 nop
52 7b011d1ab50f Merge from eCos master repository on 1999-11-05-17:34:28-GMT jlarmour parents: 50 diff changeset	91 1:
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	92 lui k1,0x0010 # isolate soft reset bit
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	93 and k1,k1,k0
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	94 beqz k1,2f # skip if zero
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	95 nop
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	96
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	97 lar k1,__warm_start # jump to ROM warm_start code
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	98 jr k1
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	99 nop
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	100 2:
52 7b011d1ab50f Merge from eCos master repository on 1999-11-05-17:34:28-GMT jlarmour parents: 50 diff changeset	101 la k0,INITIAL_CONFIG0 # Set up config0 register
7b011d1ab50f Merge from eCos master repository on 1999-11-05-17:34:28-GMT jlarmour parents: 50 diff changeset	102 mtc0 k0,config0 # to disable cache
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	103 #endif
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	104 lar v0,_start # jump to start
112 02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 92 diff changeset	105 CYGARC_ADDRESS_REG_UNCACHED(v0)
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	106 jr v0
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	107 nop # (delay slot)
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	108
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	109 FUNC_END(reset_vector)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	110
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	111 .section ".debug_vector","ax"
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	112
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	113 # Debug vector at 0xBFC00200
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	114
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	115 FUNC_START(debug_vector)
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	116 la k0,32
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	117 la k1,hal_vsr_table # Get VSR table
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	118 lw k1,32*4(k1) # load debug vector
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	119 jr k1 # go there
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	120 nop # (delay slot)
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	121 FUNC_END(debug_vector)
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	122
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	123 .section ".other_vector","ax"
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	124
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	125 # Common vector at 0x80000080 or 0xBFC00180
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	126
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	127 FUNC_START(other_vector)
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	128 mfc0 k0,cause # K0 = exception cause
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	129 nop
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	130 andi k0,k0,0x7F # isolate exception code
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	131 la k1,hal_vsr_table # address of VSR table
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	132 add k1,k1,k0 # offset of VSR entry
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	133 lw k1,0(k1) # k1 = pointer to VSR
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	134 jr k1 # go there
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	135 nop # (delay slot)
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	136
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	137 FUNC_END(other_vector)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	138
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	139 .section ".utlb_vector","ax"
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	140
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	141 FUNC_START(utlb_vector)
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	142 la k0,33
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	143 la k1,hal_vsr_table # Get VSR table
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	144 lw k1,33*4(k1) # load utlb vector
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	145 jr k1 # go there
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	146 nop # (delay slot)
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	147 FUNC_END(utlb_vector)
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	148
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	149 ##-----------------------------------------------------------------------------
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	150 ## Startup code
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	151
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	152 .text
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	153
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	154 FUNC_START(_start)
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	155
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	156 # Initialize hardware
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	157 hal_cpu_init
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	158 hal_diag_init
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	159 hal_mmu_init
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	160 hal_fpu_init
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	161 hal_memc_init
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	162 hal_intc_init
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	163 hal_cache_init
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	164 hal_timer_init
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	165
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	166 # Load Global Pointer register.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	167 la gp,_gp
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	168
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	169 # load initial stack pointer
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	170 la a0,__interrupt_stack
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	171 move sp,a0
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	172
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	173 hal_mon_init
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	174
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	175 #ifdef CYG_HAL_STARTUP_ROM
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	176 # Copy data from ROM to RAM
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	177
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	178 .extern hal_copy_data
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	179 jal hal_copy_data
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	180 nop
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	181
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	182 #endif
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	183
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	184 # Zero BSS
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	185
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	186 .extern hal_zero_bss
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	187 jal hal_zero_bss
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	188 nop
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	189
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	190 # Call variant and platform HAL
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	191 # initialization routines.
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	192
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	193 .extern hal_variant_init
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	194 jal hal_variant_init
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	195 nop
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	196
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	197 .extern hal_platform_init
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	198 jal hal_platform_init
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	199 nop
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	200
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	201 # Call constructors
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	202 .extern cyg_hal_invoke_constructors
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	203 jal cyg_hal_invoke_constructors
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	204 nop
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	205
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	206 #if defined(CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS)
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	207 .extern initialize_stub
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	208 jal initialize_stub
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	209 nop
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	210 #endif
92 08ffab08d2ee Merge from eCos master repository on 2000-05-26-07:47:03-BST jlarmour parents: 90 diff changeset	211 #if defined(CYGDBG_HAL_MIPS_DEBUG_GDB_CTRLC_SUPPORT)
08ffab08d2ee Merge from eCos master repository on 2000-05-26-07:47:03-BST jlarmour parents: 90 diff changeset	212 .extern hal_ctrlc_isr_init
08ffab08d2ee Merge from eCos master repository on 2000-05-26-07:47:03-BST jlarmour parents: 90 diff changeset	213 jal hal_ctrlc_isr_init
08ffab08d2ee Merge from eCos master repository on 2000-05-26-07:47:03-BST jlarmour parents: 90 diff changeset	214 nop
08ffab08d2ee Merge from eCos master repository on 2000-05-26-07:47:03-BST jlarmour parents: 90 diff changeset	215 #endif
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	216
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	217 # Call cyg_start
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	218
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	219 .extern cyg_start
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	220 j cyg_start
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	221 lui ra,0
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	222
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	223 FUNC_END(_start )
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	224
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	225
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	226 ##-----------------------------------------------------------------------------
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	227
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	228 FUNC_START(__warm_start)
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	229
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	230 ## The following is debug code left in here for now in case it
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	231 ## proves useful in the near future.
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	232 #if 0
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	233 move s0,t0
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	234 move s1,a1
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	235
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	236 # hal_diag_init
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	237
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	238 hal_diag_writec '$'
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	239 mfc0 a0,$30 # get ErrorEPC
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	240 lar k0,hal_diag_ai_write_hex8
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	241 jalr k0
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	242 nop
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	243 hal_diag_writec '-'
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	244 move a0,s0
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	245 jalr k0
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	246 nop
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	247 hal_diag_writec '-'
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	248 move a0,s1
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	249 jalr k0
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	250 nop
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	251 1:
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	252 b 1b
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	253 nop
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	254 #endif
90 70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	255
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	256 # Treat a warm-start either as a cold-start or an NMI
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	257 #if defined(CYGHWR_HAL_MIPS_WARMSTART_COLDSTART)
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	258 lar v0,_start # jump to start
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	259 jr v0
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	260 nop # (delay slot)
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	261 #else
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	262 # Defaults to NMI
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	263 b __nmi_entry
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	264 nop
90 70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	265 #endif
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	266
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	267 FUNC_END(__warm_start)
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	268
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	269 ##-----------------------------------------------------------------------------
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	270
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	271 FUNC_START(__nmi_entry)
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	272
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	273 # Clear exception state
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	274 hal_cpu_except_enable
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	275
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	276 # Move the ErrorEPC register to the EPC register so that the
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	277 # default exception handler saves the right PC value.
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	278 mfc0 k0,$30
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	279 nop; nop; nop;
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	280 mtc0 k0,epc
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	281 nop; nop; nop;
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	282
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	283 #if (INITIAL_SR & 0x00400000) == 0
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	284 # Taking this exception will have set the BEV bit to 1.
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	285 # If we normally run with it zero, we must clear it here.
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	286 mfc0 k0,status
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	287 la k1,0xFFBFFFFF
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	288 and k0,k0,k1
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	289 mtc0 k0,status
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	290 #endif
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	291
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	292 la k0,34*4
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	293 la k1,hal_vsr_table # Get VSR table
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	294 lw k1,34*4(k1) # load NMI vector
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	295 jr k1 # go there
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	296 nop # (delay slot)
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	297
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	298 FUNC_END(__nmi_entry)
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	299
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	300
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	301 ##-----------------------------------------------------------------------------
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	302 ## Default exception VSR.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	303 ## Saves machine state and calls external handling code.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	304
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	305 FUNC_START(__default_exception_vsr)
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	306
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	307 # We enter here with all of the CPU state still
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	308 # in its registers except:
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	309 # K0 = vector index
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	310 # K1 = address of this function
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	311
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	312 move k1,sp # K1 = original SP
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	313
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	314 #ifdef CYGSEM_HAL_ROM_MONITOR
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	315 # Switch to interrupt stack to handle exception
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	316 la sp,__interrupt_stack
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	317 #endif
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	318
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	319 addi sp,sp,-mips_exception_decrement
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	320 # space for registers + safety margin
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	321
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	322 sw k0,mipsreg_vector(sp) # store vector
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	323
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	324 # store GPRs
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	325 .set noat
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	326 sgpr 0,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	327 sgpr 1,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	328 sgpr 2,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	329 sgpr 3,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	330 sgpr 4,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	331 sgpr 5,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	332 sgpr 6,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	333 sgpr 7,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	334 sgpr 8,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	335 sgpr 9,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	336 sgpr 10,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	337 sgpr 11,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	338 sgpr 12,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	339 sgpr 13,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	340 sgpr 14,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	341 sgpr 15,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	342 sgpr 16,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	343 sgpr 17,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	344 sgpr 18,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	345 sgpr 19,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	346 sgpr 20,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	347 sgpr 21,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	348 sgpr 22,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	349 sgpr 23,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	350 sgpr 24,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	351 sgpr 25,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	352 # sgpr 26,sp # == K0
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	353 # sgpr 27,sp # == K1
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	354 sgpr 28,sp # == GP
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	355 # sgpr 29,sp # == SP
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	356 sgpr 30,sp # == FP
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	357 sgpr 31,sp # == RA
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	358 .set at
ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	359
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	360 mfhi a0
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	361 mflo a1
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	362 shi a0,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	363 slo a1,sp
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	364
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	365 # K1 contains original SP
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	366 ssp k1,sp # store in reg dump
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	367
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	368 # save remaining machine state registers
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	369 mfc0 t0,cause
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	370 mfc0 t1,status
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 16 diff changeset	371 mfc0 t2,cachectrl
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	372 mfc0 t3,badvr
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	373 mfc0 t4,config
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	374 mfc0 t5,prid
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	375 mfc0 t6,epc
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	376
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	377 sw t0,mipsreg_cause(sp)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	378 sw t1,mipsreg_sr(sp)
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 16 diff changeset	379 sw t2,mipsreg_cachectrl(sp)
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	380 sw t3,mipsreg_badvr(sp)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	381 sw t4,mipsreg_config(sp)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	382 sw t5,mipsreg_prid(sp)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	383 sw t6,mipsreg_pc(sp)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	384
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	385 hal_fpu_save sp
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	386
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	387 # The machine state is now all saved on the stack.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	388
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	389 hal_diag_excpt_start
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	390
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	391 # Load Global Pointer register.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	392 la gp,_gp
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	393
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	394 move s0,sp # save pointer to saved state
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	395
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	396 addi sp,sp,-mips_stack_frame_size # make a null frame
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	397
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	398 # Need to set up back pointers etc. ???
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	399
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	400 la ra,restore_state # load return address
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	401
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	402 hal_cpu_except_enable # reenable exceptions
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	403
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	404 .extern cyg_hal_exception_handler
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	405 j cyg_hal_exception_handler # call C code
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	406 move a0,s0 # arg0 = register dump (delay slot)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	407
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	408 # When the exception handler returns, it will
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	409 # go back to restore_state, below.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	410
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	411 FUNC_END(__default_exception_vsr)
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	412
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	413 ##------------------------------------------------------------------------------
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	414 ## Default interrupt VSR.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	415 ## Saves machine state and calls appropriate ISR. When done, calls
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	416 ## interrupt_end() to finish up and possibly reschedule.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	417
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	418 FUNC_START(__default_interrupt_vsr)
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	419
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	420
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	421 # We enter here with all of the CPU state still
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	422 # in its registers except:
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	423 # K0 = vector index
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	424 # K1 = address of this function
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	425
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	426 move k1,sp # K1 = original SP
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	427
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	428 addi sp,sp,-mips_exception_decrement
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	429 # space for registers + safety margin
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	430
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	431 sw k0,mipsreg_vector(sp) # store vector
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	432
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	433 # store GPRs
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	434 .set noat
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	435 sgpr 0,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	436 sgpr 1,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	437 sgpr 2,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	438 sgpr 3,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	439 sgpr 4,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	440 sgpr 5,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	441 sgpr 6,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	442 sgpr 7,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	443 sgpr 8,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	444 sgpr 9,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	445 sgpr 10,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	446 sgpr 11,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	447 sgpr 12,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	448 sgpr 13,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	449 sgpr 14,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	450 sgpr 15,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	451 sgpr 16,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	452 sgpr 17,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	453 sgpr 18,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	454 sgpr 19,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	455 sgpr 20,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	456 sgpr 21,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	457 sgpr 22,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	458 sgpr 23,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	459 sgpr 24,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	460 sgpr 25,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	461 # sgpr 26,sp # == K0
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	462 # sgpr 27,sp # == K1
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	463 sgpr 28,sp # == GP
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	464 # sgpr 29,sp # == SP
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	465 sgpr 30,sp # == FP
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	466 sgpr 31,sp # == RA
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	467 .set at
ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	468
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	469 mfhi a0
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	470 mflo a1
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	471 shi a0,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	472 slo a1,sp
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	473
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	474 # K1 contains original SP
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	475 ssp k1,sp # store in reg dump
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	476
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	477 mfc0 t1,status
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 16 diff changeset	478 mfc0 t2,cachectrl
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	479 mfc0 t3,epc
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	480
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	481 sw t1,mipsreg_sr(sp)
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 16 diff changeset	482 sw t2,mipsreg_cachectrl(sp)
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	483 sw t3,mipsreg_pc(sp)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	484
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	485 hal_fpu_save sp
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	486
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	487 # The machine state is now all saved on the stack.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	488
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	489 # Load Global Pointer register.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	490 la gp,_gp
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	491
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	492 #ifdef CYGFUN_HAL_COMMON_KERNEL_SUPPORT
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	493 .extern cyg_scheduler_sched_lock
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	494 la v0,cyg_scheduler_sched_lock
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	495 lw a0,0(v0)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	496 addi a0,a0,1
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	497 sw a0,0(v0)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	498 #endif
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	499
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	500 move s0,sp # save pointer to saved state
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	501
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	502 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	503
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	504 la a0,__interrupt_stack # a0 = stack top
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	505 la a1,__interrupt_stack_base # a1 = stack base
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	506 sub a3,sp,a1 # a3 = sp - base
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	507 bltz a3,1f # if < 0 - not on istack
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	508 nop # delay slot
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	509 sub t0,a0,sp # t0 = top - sp
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	510 bgtz t0,8f # if > 0 - already on istack
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	511 nop # delay slot
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	512 1:
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	513 move sp,a0 # switch to istack
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	514 8:
50 a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 48 diff changeset	515 addi sp,sp,-8 # space for old SP
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 48 diff changeset	516 # (8 to keep dword alignment!)
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	517 sw s0,0(sp) # save old SP on stack
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	518
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	519 #endif
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	520
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	521 subu sp,sp,mips_stack_frame_size # make a null frame
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	522
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	523 # Need to set up back pointers etc. ???
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	524
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	525 # Decode external interrupt via interrupt controller
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	526
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	527 hal_intc_decode s2
48 1370c5e55234 Merge from eCos master repository on 1999-10-25-21:18:27-BST jlarmour parents: 38 diff changeset	528
1370c5e55234 Merge from eCos master repository on 1999-10-25-21:18:27-BST jlarmour parents: 38 diff changeset	529 # Here, s2 contains the number of the interrupt being serviced,
1370c5e55234 Merge from eCos master repository on 1999-10-25-21:18:27-BST jlarmour parents: 38 diff changeset	530 # we need to derive from that the vector number to call in the ISR
1370c5e55234 Merge from eCos master repository on 1999-10-25-21:18:27-BST jlarmour parents: 38 diff changeset	531 # table.
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	532
48 1370c5e55234 Merge from eCos master repository on 1999-10-25-21:18:27-BST jlarmour parents: 38 diff changeset	533 hal_intc_translate s2,s1
1370c5e55234 Merge from eCos master repository on 1999-10-25-21:18:27-BST jlarmour parents: 38 diff changeset	534
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	535 # Here s1 is the number of the vector to be called and s2 is
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	536 # the number of the interrupt being serviced.
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	537
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	538 hal_diag_intr_start
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	539
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	540 #if defined(CYGPKG_KERNEL_INSTRUMENT) && defined(CYGDBG_KERNEL_INSTRUMENT_INTR)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	541
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	542 # Call cyg_instrument to record that this interrupt is being raised.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	543
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	544 li a0,0x0301 # a0 = type = INTR,RAISE
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	545 move a1,s1 # a1 = vector number
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	546 jal cyg_instrument # call instrument function
48 1370c5e55234 Merge from eCos master repository on 1999-10-25-21:18:27-BST jlarmour parents: 38 diff changeset	547 move a2,s2 # a2 = interrupt number
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	548 #endif
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	549
50 a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 48 diff changeset	550 #if defined(CYGDBG_HAL_MIPS_DEBUG_GDB_CTRLC_SUPPORT)
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	551 # If we are supporting Ctrl-C interrupts from GDB, we must squirrel
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	552 # away a pointer to the save interrupt state here so that we can
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	553 # plant a breakpoint at some later time.
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	554
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	555 .extern hal_saved_interrupt_state
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	556 la v0,hal_saved_interrupt_state
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	557 sw s0,0(v0)
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	558
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	559 #endif
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	560
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	561 sll s1,s1,2 # s1 = byte offset of vector
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	562
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	563 hal_cpu_except_enable # reenable exceptions
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	564
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	565 la t2,hal_interrupt_handlers # handler table
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	566 add t2,t2,s1 # address of ISR ptr
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	567 lw t2,0(t2) # ISR pointer
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	568
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	569 la a1,hal_interrupt_data # data table
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	570 add a1,a1,s1 # address of data ptr
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	571 lw a1,0(a1) # Data pointer
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	572
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	573 move a0,s2 # pass interrupt number
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	574
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	575 jalr t2 # call ISR via t2
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	576 nop # (delay slot)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	577
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	578 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	579
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	580 # If we are returning from the last nested interrupt, move back
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	581 # to the thread stack. interrupt_end() must be called on the
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	582 # thread stack since it potentially causes a context switch.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	583 # Since we have arranged for the top of stack location to
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	584 # contain the sp we need to go back to here, just pop it off
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	585 # and put it in SP.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	586
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	587
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	588 lw sp,mips_stack_frame_size(sp) # sp = *sp
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	589 subu sp,sp,mips_stack_frame_size # make a null frame
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	590 #endif
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	591
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	592 #ifdef CYGFUN_HAL_COMMON_KERNEL_SUPPORT
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	593
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	594 # We only need to call _interrupt_end() when there is a kernel
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	595 # present to do any tidying up.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	596
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	597 # On return v0 bit 1 will indicate whether a DSR is
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	598 # to be posted. Pass this together with a pointer to
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	599 # the interrupt object we have just used to the
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	600 # interrupt tidy up routine.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	601
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	602 # Note that s0, s1 and s2 are defined to be preserved across
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	603 # calls by the calling convention, so they still contain
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	604 # the register dump, the vector offset and the interrupt number
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	605 # respectively.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	606
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	607 move s2,v0
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	608
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	609 la a1,hal_interrupt_objects # interrupt object table
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	610 add a1,a1,s1 # address of object ptr
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	611 lw a1,0(a1) # a1 = object ptr
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	612
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	613 move a2,s0 # arg3 = saved register dump
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	614
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	615 .extern interrupt_end
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	616 jal interrupt_end # call into C to finish off
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	617 move a0,v0 # put ISR result in arg0
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	618
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	619 move v0,s2 # return value from isr
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	620 #endif
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	621
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	622 restore_state:
92 08ffab08d2ee Merge from eCos master repository on 2000-05-26-07:47:03-BST jlarmour parents: 90 diff changeset	623 #if defined(CYGSEM_HAL_USE_ROM_MONITOR_CygMon)
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	624 move k0,v0
92 08ffab08d2ee Merge from eCos master repository on 2000-05-26-07:47:03-BST jlarmour parents: 90 diff changeset	625 #endif
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	626
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	627 # All done, restore CPU state and continue
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	628
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	629 addi sp,sp,mips_stack_frame_size # retrieve CPU state ptr
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	630
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	631 # Disable interrupts again while we restore state.
92 08ffab08d2ee Merge from eCos master repository on 2000-05-26-07:47:03-BST jlarmour parents: 90 diff changeset	632 hal_cpu_int_disable
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	633
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	634 hal_diag_restore
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	635
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	636 hal_fpu_load sp
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	637
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 16 diff changeset	638 lw t0,mipsreg_cachectrl(sp)
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	639 lhi t1,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	640 llo t2,sp
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	641
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 16 diff changeset	642 mtc0 t0,cachectrl
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	643 mthi t1
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	644 mtlo t2
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	645
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	646 # load GPRs
ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	647 .set noat
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	648 # lgpr 0,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	649 lgpr 1,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	650 lgpr 2,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	651 lgpr 3,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	652 lgpr 4,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	653 lgpr 5,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	654 lgpr 6,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	655 lgpr 7,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	656 lgpr 8,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	657 lgpr 9,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	658 lgpr 10,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	659 lgpr 11,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	660 lgpr 12,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	661 lgpr 13,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	662 lgpr 14,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	663 lgpr 15,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	664 lgpr 16,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	665 lgpr 17,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	666 lgpr 18,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	667 lgpr 19,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	668 lgpr 20,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	669 lgpr 21,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	670 lgpr 22,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	671 lgpr 23,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	672 lgpr 24,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	673 lgpr 25,sp
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	674 # lgpr 26,sp # == K0
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	675 # lgpr 27,sp # == K1
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	676 lgpr 28,sp # == GP
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	677 # lgpr 29,sp # == SP
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	678 lgpr 30,sp # == FP
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	679 lgpr 31,sp # == RA
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	680 .set at
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	681
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	682
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	683 #if defined(CYGSEM_HAL_USE_ROM_MONITOR_CygMon)
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	684
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	685 # If we have a Cygmon that wants to listen to network interrupts, then
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	686 # the return code from the earlier call to hal_default_isr() will
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	687 # have been negative to indicate this. So we jump into Cygmon here
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	688 # because Cygmon requires the processor state to be the same as when
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	689 # the interrupt was taken, but with k0 as the exception number.
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	690
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	691 bgez k0,1f
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	692 nop
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	693 # Check for new cygmon
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	694 sw k0,(mipsreg_regs+26*4)(sp) # save k0
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	695 la k1,0x80000100 + 41*4 # New cygmon "magic" id
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	696 lw k1,0(k1)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	697 lui k0,0x55aa
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	698 ori k0,0x4321
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	699 bne k0,k1,1f
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	700
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	701 # Need to let cygmon handle this
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	702 la k1,0x80000100 + 39*4 # stub entry vector
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	703 lw k0,(mipsreg_regs+26*4)(sp) # restore k0
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	704 lw k1,0(k1)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	705 lw sp,(mipsreg_regs+29*4)(sp) # restore SP
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	706 sll k0,1 # clear bit 31.
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	707 jr k1
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	708 srl k0,1
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	709 1:
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 24 diff changeset	710 #endif
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	711 lw k0,mipsreg_pc(sp) # K0 = return PC
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	712 lw k1,mipsreg_sr(sp) # K1 = saved SR
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 52 diff changeset	713 lsp sp,sp # load SP
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	714
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	715 # Invoke CPU specific mechanism for returning from this
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	716 # exception
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	717
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	718 hal_cpu_eret k0,k1
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	719
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	720 FUNC_END(__default_interrupt_vsr)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	721
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	722 hal_intc_decode_data
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	723
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	724 ##-----------------------------------------------------------------------------
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	725 ## Execute pending DSRs on the interrupt stack with interrupts enabled.
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	726 ## Note: this can only be called from code running on a thread stack
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	727
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	728 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	729 .extern cyg_interrupt_call_pending_DSRs
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	730
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	731 FUNC_START(hal_interrupt_stack_call_pending_DSRs)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	732 mfc0 t0,status # get status register value
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	733 la v0,__interrupt_stack # v0 = interrupt stack
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	734 move v1,sp # v1 = original stack ptr
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	735 move sp,v0 # sp = interrupt stack
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	736 addi sp,sp,-32 # make a null frame
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	737 sw v1,16(sp) # save old sp
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	738 sw ra,20(sp) # save old ra
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	739 sw t0,24(sp) # save old sr
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	740
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	741 hal_cpu_int_enable
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	742
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	743 jal cyg_interrupt_call_pending_DSRs # call back to kernel
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	744 nop
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	745
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	746 lw a0,24(sp) # get status reg
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	747
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	748 hal_cpu_int_merge a0 # merge with current SR
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	749
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	750 lw ra,20(sp) # restore ra
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	751 lw sp,16(sp) # restore sp
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	752
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	753 jr ra # go back
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	754 nop # delay slot
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	755
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	756 FUNC_END(hal_interrupt_stack_call_pending_DSRs)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	757 #endif
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	758
90 70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	759 ##-----------------------------------------------------------------------------
14 01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 10 diff changeset	760 ## Short circuit in case any code tries to use "__gccmain()"
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	761
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	762 FUNC_START(__gccmain)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	763 jr ra
14 01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 10 diff changeset	764 nop
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	765 FUNC_END(__gccmain)
90 70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	766
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	767 ##-----------------------------------------------------------------------------
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	768 ## VSR springboard for break instruction exceptions
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	769 ## Both GCC and GDB use break instructions. GCC for division-by-zero
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	770 ## notification and GDB for program-flow breakpoints. This springboard
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	771 ## looks for the d-b-z kind and directs them to another vector so libc
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	772 ## can handle these without affecting the debugger.
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	773
90 70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	774 FUNC_START(__break_vsr_springboard)
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	775 mfc0 k0,epc
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	776 mfc0 k1,cause
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	777 bltzl k1,1f
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	778 addi k0,k0,4 # delay slot (only executed if BD set)
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	779 1: lw k1,0(k0) # get break instruction
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	780 la k0,0x0007000d # break 0x7 used by GCC for d-b-z
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	781 bne k0,k1,2f
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	782 nop
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	783 ori k0,$0,14*4 # CYGNUM_HAL_VECTOR_DIV_BY_ZERO
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	784 la k1,hal_vsr_table # address of VSR table
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	785 add k1,k1,k0 # offset of VSR entry
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	786 lw k1,0(k1) # k1 = pointer to VSR
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	787 jr k1 # go there
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	788 nop # (delay slot)
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	789 2: ori k0,$0,9*4 # CYGNUM_HAL_VECTOR_BREAKPOINT
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	790 j __default_exception_vsr
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	791 nop # (delay slot)
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	792 FUNC_END(__break_vsr_springboard)
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	793
70190fa0fe10 Merge from eCos master repository on 2000-05-19-07:47:03-BST jlarmour parents: 76 diff changeset	794
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	795 ##-----------------------------------------------------------------------------
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	796 ## Interrupt Stack.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	797 ## Used during intialization and for executing ISRs.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	798
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	799 .bss
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	800
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	801 .balign 16
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	802 .global cyg_interrupt_stack_base
ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	803 cyg_interrupt_stack_base:
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	804 __interrupt_stack_base:
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	805 .rept CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	806 .byte 0
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	807 .endr
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	808 .balign 16
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	809 .global cyg_interrupt_stack
ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	810 cyg_interrupt_stack:
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	811 __interrupt_stack:
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	812
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	813 .long 0,0,0,0,0,0,0,0
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	814
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	815 ##-----------------------------------------------------------------------------
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	816 ## VSR table.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	817 ## The main interrupt code indirects through here to find the VSR
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	818 ## to execute for each architecture defined interrupt.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	819 ## This is only used for simulated targets, on real targets a fixed location VSR
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	820 ## table is now allocated at 0x80000100.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	821
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	822 #ifndef CYG_HAL_MIPS_VSR_TABLE_DEFINED
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	823
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	824 ## .section ".vsr_table","a"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	825
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	826 .data
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	827
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	828 .globl hal_vsr_table
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	829
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	830 hal_vsr_table:
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	831 .long __default_interrupt_vsr
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	832 .rept 63
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	833 .long __default_exception_vsr
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	834 .endr
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	835
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	836 #endif
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	837
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	838 #------------------------------------------------------------------------------
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	839 # Interrupt vector tables.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	840 # These tables contain the isr, data and object pointers used to deliver
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	841 # interrupts to user code.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	842 # hal_interrupt_level contains the interrupt level set by
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	843 # HAL_INTERRUPT_CONFIGURE().
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	844 # This is a default set that provide support only for the 6 external
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	845 # interrupts in the status/cause registers. Platforms or boards are expected
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	846 # to define their own versions of these if they have their own interrupt mappings.
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	847
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	848 #ifndef CYG_HAL_MIPS_ISR_TABLES_DEFINED
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	849
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	850 .extern hal_default_isr
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	851
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	852 .data
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	853
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	854 .globl hal_interrupt_handlers
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	855 hal_interrupt_handlers:
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	856 .long hal_default_isr
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	857 .long hal_default_isr
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	858 .long hal_default_isr
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	859 .long hal_default_isr
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	860 .long hal_default_isr
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	861 .long hal_default_isr
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	862
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	863
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	864 .globl hal_interrupt_data
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	865 hal_interrupt_data:
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	866 .rept 6
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	867 .long 0
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	868 .endr
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	869
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	870 .globl hal_interrupt_objects
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	871 hal_interrupt_objects:
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	872 .rept 6
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	873 .long 0
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	874 .endr
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	875
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	876 #endif
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	877
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	878 ##-----------------------------------------------------------------------------
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	879 ## end of vectors.S
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	880
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	881

Mercurial > flash_v2

annotate packages/hal/mips/arch/current/src/vectors.S @ 112:02ea4320376c ecos-sw-2000-07-21