ecos: packages/hal/mips/arch/current/src/context.S annotate

annotate packages/hal/mips/arch/current/src/context.S @ 10:d3fbcdfa1b2f ecos-sw-1999-05-29

Merge from eCos master repository on 1999-05-29-00:13:11-BST

author	jlarmour
date	Fri, 28 May 1999 16:43:09 +0000
parents	ece80412419a
children	7a6ac9edc838

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 ## context.S
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	3 ##
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	4 ## MIPS context switch code
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	5 ##
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 #####COPYRIGHTBEGIN####
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	8 #
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	9 # -------------------------------------------
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	10 # The contents of this file are subject to the Cygnus eCos Public License
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	11 # Version 1.0 (the "License"); you may not use this file except in
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	12 # compliance with the License. You may obtain a copy of the License at
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	13 # http://sourceware.cygnus.com/ecos
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	14 #
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	15 # Software distributed under the License is distributed on an "AS IS"
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	16 # basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	17 # License for the specific language governing rights and limitations under
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	18 # the License.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	19 #
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	20 # The Original Code is eCos - Embedded Cygnus Operating System, released
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	21 # September 30, 1998.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	22 #
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	23 # The Initial Developer of the Original Code is Cygnus. Portions created
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	24 # by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions. All Rights Reserved.
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	25 # -------------------------------------------
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	26 #
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	27 #####COPYRIGHTEND####
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	28 ##=============================================================================
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	29 #######DESCRIPTIONBEGIN####
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	30 ##
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	31 ## Author(s): nickg
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	32 ## Contributors: nickg
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	33 ## Date: 1998-04-27
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	34 ## Purpose: MIPS context switch code
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	35 ## Description: This file contains implementations of the thread context
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	36 ## switch routines. It also contains the longjmp() and setjmp()
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	37 ## routines.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	38 ##
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	39 ######DESCRIPTIONEND####
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	40 ##
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	41 ##=============================================================================
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 #include <pkgconf/hal.h>
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	44
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	45 #include <cyg/hal/arch.inc>
0 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 #------------------------------------------------------------------------------
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	48 # hal_thread_switch_context
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	49 # Switch thread contexts
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	50 # A0 = address of sp of next thread to execute
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	51 # A1 = address of sp save location of current thread
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	52
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	53 .global hal_thread_switch_context
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	54 hal_thread_switch_context:
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	55
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	56 addi sp,sp,-mipsreg_size # space for registers
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	57
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	58 # store GPRs
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	59 .set noat
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	60 #ifndef CYGDBG_HAL_COMMON_CONTEXT_SAVE_MINIMUM
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	61 sw $0,(mipsreg_regs+0*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	62 sw $1,(mipsreg_regs+1*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	63 sw $2,(mipsreg_regs+2*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	64 sw $3,(mipsreg_regs+3*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	65 sw $4,(mipsreg_regs+4*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	66 sw $5,(mipsreg_regs+5*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	67 sw $6,(mipsreg_regs+6*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	68 sw $7,(mipsreg_regs+7*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	69 sw $8,(mipsreg_regs+8*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	70 sw $9,(mipsreg_regs+9*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	71 sw $10,(mipsreg_regs+10*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	72 sw $11,(mipsreg_regs+11*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	73 sw $12,(mipsreg_regs+12*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	74 sw $13,(mipsreg_regs+13*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	75 sw $14,(mipsreg_regs+14*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	76 sw $15,(mipsreg_regs+15*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	77 sw $24,(mipsreg_regs+24*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	78 sw $25,(mipsreg_regs+25*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	79 sw $28,(mipsreg_regs+28*mips_regsize)(sp) # == GP
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	80 #endif
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	81 sw $16,(mipsreg_regs+16*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	82 sw $17,(mipsreg_regs+17*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	83 sw $18,(mipsreg_regs+18*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	84 sw $19,(mipsreg_regs+19*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	85 sw $20,(mipsreg_regs+20*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	86 sw $21,(mipsreg_regs+21*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	87 sw $22,(mipsreg_regs+22*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	88 sw $23,(mipsreg_regs+23*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	89 # sw $26,(mipsreg_regs+26*mips_regsize)(sp) # == K0
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	90 # sw $27,(mipsreg_regs+27*mips_regsize)(sp) # == K1
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	91 # sw $29,(mipsreg_regs+29*mips_regsize)(sp) # == SP
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	92 sw $30,(mipsreg_regs+30*mips_regsize)(sp) # == FP
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	93 sw $31,(mipsreg_regs+31*mips_regsize)(sp) # == RA
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	94 sw $31,(mipsreg_pc)(sp) # == PC (to help with debugging)
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	95 .set at
ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	96
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	97 #ifndef CYGDBG_HAL_COMMON_CONTEXT_SAVE_MINIMUM
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	98
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	99 mflo t0 # save LO and HI regs
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	100 mfhi t1
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	101 sw t0,mipsreg_lo(sp)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	102 sw t1,mipsreg_hi(sp)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	103
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	104 #endif
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	105
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	106 hal_fpu_save_callee sp
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	107
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	108 #ifndef CYGDBG_HAL_COMMON_CONTEXT_SAVE_MINIMUM
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	109
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	110 hal_fpu_save_caller sp
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	111
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	112 #endif
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	113
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	114 addi t0,sp,mipsreg_size # save SP in reg dump
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	115 sw t0,(mipsreg_regs+29*mips_regsize)(sp)
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	116
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	117 mfc0 t1,status # Save status register
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	118 sw t1,mipsreg_sr(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	119
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	120 sw sp,0(a1) # save sp in save loc
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	121
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	122 # Now load the destination thread by dropping through
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	123 # to hal_thread_load_context
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 #------------------------------------------------------------------------------
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	126 # hal_thread_load_context
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	127 # Load thread context
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	128 # A0 = address of sp of next thread to execute
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	129 # Note that this function is also the second half of hal_thread_switch_context
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	130 # and is simply dropped into from it.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	131
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	132 .global hal_thread_load_context
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	133 hal_thread_load_context:
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	134
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	135 lw sp,0(a0) # load new SP directly
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	136
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	137 #ifndef CYGDBG_HAL_COMMON_CONTEXT_SAVE_MINIMUM
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	138
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	139 hal_fpu_load_caller sp
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	140
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	141 #endif
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	142
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	143 hal_fpu_load_callee sp
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	144
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	145 #ifndef CYGDBG_HAL_COMMON_CONTEXT_SAVE_MINIMUM
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	146
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	147 lw t0,mipsreg_hi(sp) # load HI and LO regs
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	148 lw t1,mipsreg_lo(sp)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	149 mthi t0
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	150 mtlo t1
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	151
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	152 #endif
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	153
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	154 # load GPRs
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	155 .set noat
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	156 # lw $0,(mipsreg_regs+0*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	157 lw $4,(mipsreg_regs+4*mips_regsize)(sp) # A0, must load for thread startup
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	158 #ifndef CYGDBG_HAL_COMMON_CONTEXT_SAVE_MINIMUM
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	159 lw $1,(mipsreg_regs+1*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	160 lw $2,(mipsreg_regs+2*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	161 lw $3,(mipsreg_regs+3*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	162 lw $5,(mipsreg_regs+5*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	163 lw $6,(mipsreg_regs+6*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	164 lw $7,(mipsreg_regs+7*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	165 lw $8,(mipsreg_regs+8*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	166 lw $9,(mipsreg_regs+9*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	167 lw $10,(mipsreg_regs+10*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	168 lw $11,(mipsreg_regs+11*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	169 lw $12,(mipsreg_regs+12*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	170 lw $13,(mipsreg_regs+13*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	171 lw $14,(mipsreg_regs+14*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	172 lw $15,(mipsreg_regs+15*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	173 lw $24,(mipsreg_regs+24*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	174 lw $25,(mipsreg_regs+25*mips_regsize)(sp)
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	175 #endif
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	176 lw $16,(mipsreg_regs+16*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	177 lw $17,(mipsreg_regs+17*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	178 lw $18,(mipsreg_regs+18*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	179 lw $19,(mipsreg_regs+19*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	180 lw $20,(mipsreg_regs+20*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	181 lw $21,(mipsreg_regs+21*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	182 lw $22,(mipsreg_regs+22*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	183 lw $23,(mipsreg_regs+23*mips_regsize)(sp)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	184 # lw $26,(mipsreg_regs+26*mips_regsize)(sp) # == K0
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	185 # lw $27,(mipsreg_regs+27*mips_regsize)(sp) # == K1
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	186 # lw $28,(mipsreg_regs+28*mips_regsize)(sp) # == GP
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	187 # lw $29,(mipsreg_regs+29*mips_regsize)(sp) # == SP
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	188 lw $30,(mipsreg_regs+30*mips_regsize)(sp) # == FP
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	189 lw $31,(mipsreg_regs+31*mips_regsize)(sp) # == RA
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	190 .set at
ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	191
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	192 lw a2,mipsreg_sr(sp) # A2 = saved SR
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	193 lw sp,(mipsreg_regs+29*mips_regsize)(sp) # SP = saved SP
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	194
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	195 hal_cpu_int_merge a2 # Merge with current SR
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	196
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	197 jr ra # return via ra
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	198 nop # delay slot - must be nop
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	199
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	200 #------------------------------------------------------------------------------
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	201 # HAL longjmp, setjmp implementations
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	202 # hal_setjmp saves only to callee save registers 16-23, 28, 30, 31[ra], 29[sp]
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	203 # into buffer supplied in a0[arg0]
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	204 # Note: These definitions are repeated in hal_arch.h. If changes are required
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	205 # remember to update both sets.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	206
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	207 #define CYGARC_JMP_BUF_SP 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	208 #define CYGARC_JMP_BUF_R16 1
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	209 #define CYGARC_JMP_BUF_R17 2
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	210 #define CYGARC_JMP_BUF_R18 3
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	211 #define CYGARC_JMP_BUF_R19 4
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	212 #define CYGARC_JMP_BUF_R20 5
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	213 #define CYGARC_JMP_BUF_R21 6
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	214 #define CYGARC_JMP_BUF_R22 7
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	215 #define CYGARC_JMP_BUF_R23 8
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	216 #define CYGARC_JMP_BUF_R28 9
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	217 #define CYGARC_JMP_BUF_R30 10
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	218 #define CYGARC_JMP_BUF_R31 11
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	219
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	220 #define CYGARC_JMP_BUF_SIZE 12
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	221
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	222 .globl hal_setjmp
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	223 .ent hal_setjmp
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	224 hal_setjmp:
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	225 sw $31,CYGARC_JMP_BUF_R31*mips_regsize(a0) # ra (link)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	226 sw $30,CYGARC_JMP_BUF_R30*mips_regsize(a0)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	227 sw $28,CYGARC_JMP_BUF_R28*mips_regsize(a0) # gp, optimize out?
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	228 sw $23,CYGARC_JMP_BUF_R23*mips_regsize(a0)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	229 sw $22,CYGARC_JMP_BUF_R22*mips_regsize(a0)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	230 sw $21,CYGARC_JMP_BUF_R21*mips_regsize(a0)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	231 sw $20,CYGARC_JMP_BUF_R20*mips_regsize(a0)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	232 sw $19,CYGARC_JMP_BUF_R19*mips_regsize(a0)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	233 sw $18,CYGARC_JMP_BUF_R18*mips_regsize(a0)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	234 sw $17,CYGARC_JMP_BUF_R17*mips_regsize(a0)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	235 sw $16,CYGARC_JMP_BUF_R16*mips_regsize(a0)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	236 sw sp,CYGARC_JMP_BUF_SP*mips_regsize(a0) # $29
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	237 li v0,0
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	238 jr ra
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	239 nop # delay slot
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	240 .end hal_setjmp
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	241
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	242 .globl hal_longjmp
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	243 .ent hal_longjmp
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	244 hal_longjmp:
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	245 lw $31,CYGARC_JMP_BUF_R31*mips_regsize(a0) # ra (link)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	246 lw $30,CYGARC_JMP_BUF_R30*mips_regsize(a0)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	247 lw $28,CYGARC_JMP_BUF_R28*mips_regsize(a0) # gp, optimize out?
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	248 lw $23,CYGARC_JMP_BUF_R23*mips_regsize(a0)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	249 lw $22,CYGARC_JMP_BUF_R22*mips_regsize(a0)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	250 lw $21,CYGARC_JMP_BUF_R21*mips_regsize(a0)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	251 lw $20,CYGARC_JMP_BUF_R20*mips_regsize(a0)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	252 lw $19,CYGARC_JMP_BUF_R19*mips_regsize(a0)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	253 lw $18,CYGARC_JMP_BUF_R18*mips_regsize(a0)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	254 lw $17,CYGARC_JMP_BUF_R17*mips_regsize(a0)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	255 lw $16,CYGARC_JMP_BUF_R16*mips_regsize(a0)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	256 lw sp,CYGARC_JMP_BUF_SP*mips_regsize(a0) # $29
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	257 move v0,a1
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	258 jr ra
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	259 nop # delay slot
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	260 .end hal_longjmp
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	261
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	262
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	263 #------------------------------------------------------------------------------
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	264 # end of context.S

Mercurial > ecos

annotate packages/hal/mips/arch/current/src/context.S @ 10:d3fbcdfa1b2f ecos-sw-1999-05-29