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ntsc-beta: Decompile bootCountUnusedStack

This commit is contained in:
Ryan Dwyer 2022-10-16 20:04:36 +10:00
parent 295ec06b5e
commit b91b0f93a5
1 changed files with 20 additions and 41 deletions
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61
src/lib/boot.c
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@ -283,46 +283,25 @@ void bootPhase2(void *arg)
}
#if VERSION < VERSION_NTSC_1_0
GLOBAL_ASM(
glabel func00001b70nb
/* 1b70: 3c048006 */ lui $a0,0x8006
/* 1b74: 3c068006 */ lui $a2,0x8006
/* 1b78: 24c6e5ac */ addiu $a2,$a2,-6740
/* 1b7c: 2484e590 */ addiu $a0,$a0,-6768
/* 1b80: 00001025 */ move $v0,$zero
/* 1b84: 240a0007 */ li $t2,0x7
/* 1b88: 2409000f */ li $t1,0xf
.L00001b8c:
/* 1b8c: 8c830000 */ lw $v1,0x0($a0)
/* 1b90: 24840004 */ addiu $a0,$a0,0x4
/* 1b94: 8cc50000 */ lw $a1,0x0($a2)
/* 1b98: 10600011 */ beqz $v1,.L00001be0
/* 1b9c: 3047000f */ andi $a3,$v0,0xf
/* 1ba0: 90780020 */ lbu $t8,0x20($v1)
/* 1ba4: 01277023 */ subu $t6,$t1,$a3
/* 1ba8: 000e7900 */ sll $t7,$t6,0x4
/* 1bac: 01e74025 */ or $t0,$t7,$a3
/* 1bb0: 1518000b */ bne $t0,$t8,.L00001be0
/* 1bb4: 24630020 */ addiu $v1,$v1,0x20
/* 1bb8: 0065082b */ sltu $at,$v1,$a1
/* 1bbc: 50200009 */ beqzl $at,.L00001be4
/* 1bc0: 24420001 */ addiu $v0,$v0,0x1
/* 1bc4: 90790001 */ lbu $t9,0x1($v1)
.L00001bc8:
/* 1bc8: 24630001 */ addiu $v1,$v1,0x1
/* 1bcc: 0065082b */ sltu $at,$v1,$a1
/* 1bd0: 55190004 */ bnel $t0,$t9,.L00001be4
/* 1bd4: 24420001 */ addiu $v0,$v0,0x1
/* 1bd8: 5420fffb */ bnezl $at,.L00001bc8
/* 1bdc: 90790001 */ lbu $t9,0x1($v1)
.L00001be0:
/* 1be0: 24420001 */ addiu $v0,$v0,0x1
.L00001be4:
/* 1be4: 144affe9 */ bne $v0,$t2,.L00001b8c
/* 1be8: 24c60004 */ addiu $a2,$a2,0x4
/* 1bec: 03e00008 */ jr $ra
/* 1bf0: 00000000 */ nop
);
void bootCountUnusedStack(void)
{
s32 threadid;
for (threadid = 0; threadid < 7; threadid++) {
u8 *left = g_StackLeftAddrs[threadid];
u8 *right = g_StackRightAddrs[threadid];
if (left != NULL) {
u32 byte = ((0xf - (threadid & 0xf)) << 4) | (threadid & 0xf);
left += 0x20;
while (*left == byte && left < right) {
left++;
}
}
}
}
#endif
#if VERSION < VERSION_NTSC_1_0
@ -360,7 +339,7 @@ glabel func00001bf4nb
/* 1c58: 8e0e0000 */ lw $t6,0x0($s0)
/* 1c5c: 528e000b */ beql $s4,$t6,.L00001c8c
/* 1c60: 26310001 */ addiu $s1,$s1,0x1
/* 1c64: 0c0006dc */ jal func00001b70nb
/* 1c64: 0c0006dc */ jal bootCountUnusedStack
/* 1c68: 00000000 */ nop
/* 1c6c: 02402025 */ move $a0,$s2
/* 1c70: 02a02825 */ move $a1,$s5