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mips: Make the assembly-code N32-compatible.

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There are no $t4 or $t5 in N32 but there are $a4 and $a5.
This commit is contained in:
Vladimir Serbinenko 2015-10-10 10:34:55 +02:00
parent 6e21195890
commit 285540e448
4 changed files with 35 additions and 22 deletions
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37
grub-core/boot/mips/startup_raw.S
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@ -22,6 +22,7 @@
#include <grub/machine/memory.h>
#include <grub/machine/kernel.h>
#include <grub/offsets.h>
#include <grub/mips/asm.h>
#define BASE_ADDR 8
@ -118,32 +119,32 @@ parsestr:
move $v0, $zero
move $t3, $t1
3:
lb $t4, 0($t2)
lb $t5, 0($t3)
lb GRUB_ASM_T4, 0($t2)
lb GRUB_ASM_T5, 0($t3)
addiu $t2, $t2, 1
addiu $t3, $t3, 1
beq $t5, $zero, 1f
beq GRUB_ASM_T5, $zero, 1f
nop
beq $t5, $t4, 3b
beq GRUB_ASM_T5, GRUB_ASM_T4, 3b
nop
bne $t4, $zero, 1f
bne GRUB_ASM_T4, $zero, 1f
nop
addiu $t3, $t3, 0xffff
digcont:
lb $t5, 0($t3)
lb GRUB_ASM_T5, 0($t3)
/* Substract '0' from digit. */
addiu $t5, $t5, 0xffd0
bltz $t5, 1f
addiu GRUB_ASM_T5, GRUB_ASM_T5, 0xffd0
bltz GRUB_ASM_T5, 1f
nop
addiu $t4, $t5, 0xfff7
bgtz $t4, 1f
addiu GRUB_ASM_T4, GRUB_ASM_T5, 0xfff7
bgtz GRUB_ASM_T4, 1f
nop
/* Multiply $v0 by 10 with bitshifts. */
sll $v0, $v0, 1
sll $t4, $v0, 2
addu $v0, $v0, $t4
addu $v0, $v0, $t5
sll GRUB_ASM_T4, $v0, 2
addu $v0, $v0, GRUB_ASM_T4
addu $v0, $v0, GRUB_ASM_T5
addiu $t3, $t3, 1
b digcont
nop
@ -182,10 +183,10 @@ argdone:
b argdone
addiu $a1, $a1, 4
do_check:
lb $t4, 0($t7)
beq $t4, $zero, 1f
lb GRUB_ASM_T4, 0($t7)
beq GRUB_ASM_T4, $zero, 1f
lb $t3, 0($t6)
bne $t3, $t4, 2f
bne $t3, GRUB_ASM_T4, 2f
addiu $t6, $t6, 1
b do_check
addiu $t7, $t7, 1
@ -222,8 +223,8 @@ cmdlinedone:
1:
beq $t1, $t3, 2f
lb $t4, 0($t2)
sb $t4, 0($t1)
lb GRUB_ASM_T4, 0($t2)
sb GRUB_ASM_T4, 0($t1)
addiu $t1, $t1, 1
b 1b
addiu $t2, $t2, 1