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copy modules backwards

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phcoder 2009-10-18 16:10:42 +02:00
parent 3dc648f724
commit 877128fa45
1 changed files with 8 additions and 2 deletions
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10
kern/mips/startup.S
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@ -75,12 +75,18 @@ reloccont:
lw $t3, (GRUB_KERNEL_CPU_TOTAL_MODULE_SIZE - BASE_ADDR)($ra) lw $t3, (GRUB_KERNEL_CPU_TOTAL_MODULE_SIZE - BASE_ADDR)($ra)
/* Backward copy. */
add $t1, $t1, $t3
add $t2, $t2, $t3
addiu $t1, $t1, 0xffff
addiu $t2, $t2, 0xffff
/* $t2 is source. $t1 is destination. $t3 is size. */ /* $t2 is source. $t1 is destination. $t3 is size. */
modulesmovcont: modulesmovcont:
lb $t4, 0($t2) lb $t4, 0($t2)
sb $t4, 0($t1) sb $t4, 0($t1)
addiu $t1,$t1,1 addiu $t1,$t1,0xffff
addiu $t2,$t2,1 addiu $t2,$t2,0xffff
addiu $t3, 0xffff addiu $t3, 0xffff
bne $t3, $0, modulesmovcont bne $t3, $0, modulesmovcont