mirror of
https://github.com/n64decomp/perfect_dark.git
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Decompile osGbpakCheckConnector
This commit is contained in:
Ryan Dwyer
parent
59c5706158
commit
e16f709043
@ -1,328 +1,222 @@
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#include <ultra64.h>
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#include "constants.h"
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#include "bss.h"
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#include "lib/libc/ll.h"
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#include "lib/lib_4e090.h"
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#include "data.h"
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#include "types.h"
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GLOBAL_ASM(
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glabel osGbpakCheckConnector
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/* 50f20: 27bdfdf0 */ addiu $sp,$sp,-528
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/* 50f24: afbf0044 */ sw $ra,0x44($sp)
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/* 50f28: 240e0001 */ addiu $t6,$zero,0x1
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/* 50f2c: afbe0040 */ sw $s8,0x40($sp)
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/* 50f30: afb7003c */ sw $s7,0x3c($sp)
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/* 50f34: afb60038 */ sw $s6,0x38($sp)
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/* 50f38: afb50034 */ sw $s5,0x34($sp)
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/* 50f3c: afb40030 */ sw $s4,0x30($sp)
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/* 50f40: afb3002c */ sw $s3,0x2c($sp)
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/* 50f44: afb20028 */ sw $s2,0x28($sp)
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/* 50f48: afb10024 */ sw $s1,0x24($sp)
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/* 50f4c: afb00020 */ sw $s0,0x20($sp)
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/* 50f50: afa40210 */ sw $a0,0x210($sp)
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/* 50f54: afa50214 */ sw $a1,0x214($sp)
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/* 50f58: afae0208 */ sw $t6,0x208($sp)
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/* 50f5c: afa00204 */ sw $zero,0x204($sp)
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/* 50f60: 0c0142f8 */ jal osGbpakGetStatus
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/* 50f64: a7a00200 */ sh $zero,0x200($sp)
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/* 50f68: 2401000d */ addiu $at,$zero,0xd
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/* 50f6c: 14410005 */ bne $v0,$at,.L00050f84
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/* 50f70: 00401825 */ or $v1,$v0,$zero
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/* 50f74: 8fa40210 */ lw $a0,0x210($sp)
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/* 50f78: 0c0142f8 */ jal osGbpakGetStatus
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/* 50f7c: 8fa50214 */ lw $a1,0x214($sp)
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/* 50f80: 00401825 */ or $v1,$v0,$zero
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.L00050f84:
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/* 50f84: 2401000d */ addiu $at,$zero,0xd
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/* 50f88: 14410003 */ bne $v0,$at,.L00050f98
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/* 50f8c: 00000000 */ nop
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/* 50f90: 100000f9 */ b .L00051378
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/* 50f94: 24020004 */ addiu $v0,$zero,0x4
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.L00050f98:
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/* 50f98: 144000f6 */ bnez $v0,.L00051374
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/* 50f9c: 8faf0214 */ lw $t7,0x214($sp)
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/* 50fa0: 91f80000 */ lbu $t8,0x0($t7)
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/* 50fa4: 8fa40210 */ lw $a0,0x210($sp)
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/* 50fa8: 33190001 */ andi $t9,$t8,0x1
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/* 50fac: 57200008 */ bnezl $t9,.L00050fd0
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/* 50fb0: 27a40070 */ addiu $a0,$sp,0x70
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/* 50fb4: 0c0018cc */ jal osGbpakPower
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/* 50fb8: 24050001 */ addiu $a1,$zero,0x1
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/* 50fbc: 50400004 */ beqzl $v0,.L00050fd0
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/* 50fc0: 27a40070 */ addiu $a0,$sp,0x70
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/* 50fc4: 100000ed */ b .L0005137c
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/* 50fc8: 8fbf0044 */ lw $ra,0x44($sp)
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/* 50fcc: 27a40070 */ addiu $a0,$sp,0x70
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.L00050fd0:
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/* 50fd0: 0c012c30 */ jal bzero
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/* 50fd4: 2405000c */ addiu $a1,$zero,0xc
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/* 50fd8: 24080080 */ addiu $t0,$zero,0x80
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/* 50fdc: 24020080 */ addiu $v0,$zero,0x80
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/* 50fe0: afa20068 */ sw $v0,0x68($sp)
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/* 50fe4: a7a80202 */ sh $t0,0x202($sp)
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/* 50fe8: 24160001 */ addiu $s6,$zero,0x1
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.L00050fec:
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/* 50fec: 8fa90208 */ lw $t1,0x208($sp)
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/* 50ff0: 27ab007c */ addiu $t3,$sp,0x7c
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/* 50ff4: 00009825 */ or $s3,$zero,$zero
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/* 50ff8: 000951c0 */ sll $t2,$t1,0x7
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/* 50ffc: 00009025 */ or $s2,$zero,$zero
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/* 51000: 014bf021 */ addu $s8,$t2,$t3
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.L00051004:
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/* 51004: 8fa20068 */ lw $v0,0x68($sp)
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/* 51008: 00138140 */ sll $s0,$s3,0x5
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/* 5100c: 03d0a821 */ addu $s5,$s8,$s0
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/* 51010: 00523021 */ addu $a2,$v0,$s2
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/* 51014: 30ccffff */ andi $t4,$a2,0xffff
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/* 51018: 240d0020 */ addiu $t5,$zero,0x20
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/* 5101c: afad0010 */ sw $t5,0x10($sp)
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/* 51020: 01803025 */ or $a2,$t4,$zero
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/* 51024: 02a03825 */ or $a3,$s5,$zero
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/* 51028: 8fa40210 */ lw $a0,0x210($sp)
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/* 5102c: 00002825 */ or $a1,$zero,$zero
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/* 51030: 0c0144ec */ jal osGbpakReadWrite
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/* 51034: 0240a025 */ or $s4,$s2,$zero
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/* 51038: 10400003 */ beqz $v0,.L00051048
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/* 5103c: 8fae0208 */ lw $t6,0x208($sp)
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/* 51040: 100000ce */ b .L0005137c
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/* 51044: 8fbf0044 */ lw $ra,0x44($sp)
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.L00051048:
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/* 51048: 000e7880 */ sll $t7,$t6,0x2
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/* 5104c: 27b80070 */ addiu $t8,$sp,0x70
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/* 51050: 01f8b821 */ addu $s7,$t7,$t8
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/* 51054: 02f3c821 */ addu $t9,$s7,$s3
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/* 51058: a3360000 */ sb $s6,0x0($t9)
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/* 5105c: 8fa80204 */ lw $t0,0x204($sp)
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/* 51060: 27ab0070 */ addiu $t3,$sp,0x70
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/* 51064: 27ad007c */ addiu $t5,$sp,0x7c
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/* 51068: 00084880 */ sll $t1,$t0,0x2
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/* 5106c: 01335021 */ addu $t2,$t1,$s3
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/* 51070: 014b8821 */ addu $s1,$t2,$t3
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/* 51074: 922e0000 */ lbu $t6,0x0($s1)
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/* 51078: 000861c0 */ sll $t4,$t0,0x7
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/* 5107c: 018d9021 */ addu $s2,$t4,$t5
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/* 51080: 15c0000f */ bnez $t6,.L000510c0
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/* 51084: 8fa40210 */ lw $a0,0x210($sp)
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/* 51088: 97af0200 */ lhu $t7,0x200($sp)
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/* 5108c: 24190020 */ addiu $t9,$zero,0x20
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/* 51090: afb90010 */ sw $t9,0x10($sp)
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/* 51094: 01f43021 */ addu $a2,$t7,$s4
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/* 51098: 30d8ffff */ andi $t8,$a2,0xffff
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/* 5109c: 03003025 */ or $a2,$t8,$zero
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/* 510a0: 00002825 */ or $a1,$zero,$zero
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/* 510a4: 0c0144ec */ jal osGbpakReadWrite
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/* 510a8: 02503821 */ addu $a3,$s2,$s0
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/* 510ac: 50400004 */ beqzl $v0,.L000510c0
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/* 510b0: a2360000 */ sb $s6,0x0($s1)
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/* 510b4: 100000b1 */ b .L0005137c
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/* 510b8: 8fbf0044 */ lw $ra,0x44($sp)
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/* 510bc: a2360000 */ sb $s6,0x0($s1)
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.L000510c0:
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/* 510c0: 02a02025 */ or $a0,$s5,$zero
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/* 510c4: 02502821 */ addu $a1,$s2,$s0
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/* 510c8: 0c013824 */ jal bcmp
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/* 510cc: 24060020 */ addiu $a2,$zero,0x20
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/* 510d0: 10400003 */ beqz $v0,.L000510e0
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/* 510d4: 26920020 */ addiu $s2,$s4,0x20
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/* 510d8: 10000008 */ b .L000510fc
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/* 510dc: 00009825 */ or $s3,$zero,$zero
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.L000510e0:
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/* 510e0: 2a620003 */ slti $v0,$s3,0x3
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/* 510e4: 26730001 */ addiu $s3,$s3,0x1
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/* 510e8: 326affff */ andi $t2,$s3,0xffff
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/* 510ec: 3249ffff */ andi $t1,$s2,0xffff
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/* 510f0: 01209025 */ or $s2,$t1,$zero
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/* 510f4: 1440ffc3 */ bnez $v0,.L00051004
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/* 510f8: 01409825 */ or $s3,$t2,$zero
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.L000510fc:
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/* 510fc: 12600003 */ beqz $s3,.L0005110c
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/* 51100: 02601025 */ or $v0,$s3,$zero
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/* 51104: 1000009c */ b .L00051378
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/* 51108: 24020004 */ addiu $v0,$zero,0x4
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.L0005110c:
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/* 5110c: 8fab0204 */ lw $t3,0x204($sp)
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/* 51110: 00009825 */ or $s3,$zero,$zero
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/* 51114: 00009025 */ or $s2,$zero,$zero
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/* 51118: 11600036 */ beqz $t3,.L000511f4
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.L0005111c:
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/* 5111c: 02f38021 */ addu $s0,$s7,$s3
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/* 51120: 92080000 */ lbu $t0,0x0($s0)
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/* 51124: 8fa40210 */ lw $a0,0x210($sp)
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/* 51128: 00002825 */ or $a1,$zero,$zero
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/* 5112c: 1500000e */ bnez $t0,.L00051168
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/* 51130: 8fac0068 */ lw $t4,0x68($sp)
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/* 51134: 01923021 */ addu $a2,$t4,$s2
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/* 51138: 30cdffff */ andi $t5,$a2,0xffff
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/* 5113c: 00137140 */ sll $t6,$s3,0x5
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/* 51140: 240f0020 */ addiu $t7,$zero,0x20
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/* 51144: afaf0010 */ sw $t7,0x10($sp)
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/* 51148: 03ce3821 */ addu $a3,$s8,$t6
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/* 5114c: 0c0144ec */ jal osGbpakReadWrite
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/* 51150: 01a03025 */ or $a2,$t5,$zero
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/* 51154: 50400004 */ beqzl $v0,.L00051168
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/* 51158: a2160000 */ sb $s6,0x0($s0)
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/* 5115c: 10000087 */ b .L0005137c
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/* 51160: 8fbf0044 */ lw $ra,0x44($sp)
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/* 51164: a2160000 */ sb $s6,0x0($s0)
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.L00051168:
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/* 51168: 27b80070 */ addiu $t8,$sp,0x70
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/* 5116c: 02788821 */ addu $s1,$s3,$t8
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/* 51170: 92390000 */ lbu $t9,0x0($s1)
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/* 51174: 00138140 */ sll $s0,$s3,0x5
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/* 51178: 8fa40210 */ lw $a0,0x210($sp)
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/* 5117c: 1720000c */ bnez $t9,.L000511b0
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/* 51180: 00002825 */ or $a1,$zero,$zero
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/* 51184: 27a9007c */ addiu $t1,$sp,0x7c
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/* 51188: 240a0020 */ addiu $t2,$zero,0x20
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/* 5118c: afaa0010 */ sw $t2,0x10($sp)
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/* 51190: 02093821 */ addu $a3,$s0,$t1
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/* 51194: 0c0144ec */ jal osGbpakReadWrite
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/* 51198: 3246ffff */ andi $a2,$s2,0xffff
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/* 5119c: 50400004 */ beqzl $v0,.L000511b0
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/* 511a0: a2360000 */ sb $s6,0x0($s1)
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/* 511a4: 10000075 */ b .L0005137c
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/* 511a8: 8fbf0044 */ lw $ra,0x44($sp)
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/* 511ac: a2360000 */ sb $s6,0x0($s1)
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.L000511b0:
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/* 511b0: 27ab007c */ addiu $t3,$sp,0x7c
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/* 511b4: 020b2821 */ addu $a1,$s0,$t3
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/* 511b8: 03d02021 */ addu $a0,$s8,$s0
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/* 511bc: 0c013824 */ jal bcmp
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/* 511c0: 24060020 */ addiu $a2,$zero,0x20
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/* 511c4: 10400003 */ beqz $v0,.L000511d4
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/* 511c8: 26520020 */ addiu $s2,$s2,0x20
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/* 511cc: 10000009 */ b .L000511f4
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/* 511d0: 00001025 */ or $v0,$zero,$zero
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.L000511d4:
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/* 511d4: 2a620003 */ slti $v0,$s3,0x3
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/* 511d8: 26730001 */ addiu $s3,$s3,0x1
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/* 511dc: 326cffff */ andi $t4,$s3,0xffff
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/* 511e0: 3248ffff */ andi $t0,$s2,0xffff
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/* 511e4: 01009025 */ or $s2,$t0,$zero
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/* 511e8: 1440ffcc */ bnez $v0,.L0005111c
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/* 511ec: 01809825 */ or $s3,$t4,$zero
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/* 511f0: 01801025 */ or $v0,$t4,$zero
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.L000511f4:
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/* 511f4: 10400003 */ beqz $v0,.L00051204
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/* 511f8: 8fad0204 */ lw $t5,0x204($sp)
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/* 511fc: 1000005e */ b .L00051378
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/* 51200: 24020004 */ addiu $v0,$zero,0x4
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.L00051204:
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/* 51204: 11a00005 */ beqz $t5,.L0005121c
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/* 51208: 000d7080 */ sll $t6,$t5,0x2
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/* 5120c: 27af0070 */ addiu $t7,$sp,0x70
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/* 51210: 01cf2021 */ addu $a0,$t6,$t7
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/* 51214: 0c012c30 */ jal bzero
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/* 51218: 24050004 */ addiu $a1,$zero,0x4
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.L0005121c:
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/* 5121c: 8faa0068 */ lw $t2,0x68($sp)
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/* 51220: 8fb90208 */ lw $t9,0x208($sp)
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/* 51224: 97b80202 */ lhu $t8,0x202($sp)
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/* 51228: 000a5840 */ sll $t3,$t2,0x1
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/* 5122c: 3168ffff */ andi $t0,$t3,0xffff
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/* 51230: 29014001 */ slti $at,$t0,0x4001
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/* 51234: 3b290003 */ xori $t1,$t9,0x3
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/* 51238: afa80068 */ sw $t0,0x68($sp)
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/* 5123c: a7ab0202 */ sh $t3,0x202($sp)
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/* 51240: afa90208 */ sw $t1,0x208($sp)
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/* 51244: afb90204 */ sw $t9,0x204($sp)
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/* 51248: 1420ff68 */ bnez $at,.L00050fec
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/* 5124c: a7b80200 */ sh $t8,0x200($sp)
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/* 51250: 8fac0210 */ lw $t4,0x210($sp)
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/* 51254: 8faf0208 */ lw $t7,0x208($sp)
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/* 51258: 00009825 */ or $s3,$zero,$zero
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/* 5125c: 8d8d0050 */ lw $t5,0x50($t4)
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/* 51260: 00009025 */ or $s2,$zero,$zero
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/* 51264: 27b9007c */ addiu $t9,$sp,0x7c
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/* 51268: 29a10002 */ slti $at,$t5,0x2
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/* 5126c: 10200005 */ beqz $at,.L00051284
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/* 51270: 000fc1c0 */ sll $t8,$t7,0x7
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/* 51274: 8d8e004c */ lw $t6,0x4c($t4)
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/* 51278: 24010002 */ addiu $at,$zero,0x2
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/* 5127c: 55c10037 */ bnel $t6,$at,.L0005135c
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/* 51280: 8fa40210 */ lw $a0,0x210($sp)
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.L00051284:
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/* 51284: 0319f021 */ addu $s8,$t8,$t9
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/* 51288: 3416a000 */ dli $s6,0xa000
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.L0005128c:
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/* 5128c: 02563021 */ addu $a2,$s2,$s6
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/* 51290: 00138140 */ sll $s0,$s3,0x5
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/* 51294: 03d0a821 */ addu $s5,$s8,$s0
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/* 51298: 30c9ffff */ andi $t1,$a2,0xffff
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/* 5129c: 240a0020 */ addiu $t2,$zero,0x20
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/* 512a0: afaa0010 */ sw $t2,0x10($sp)
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/* 512a4: 01203025 */ or $a2,$t1,$zero
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/* 512a8: 02a03825 */ or $a3,$s5,$zero
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/* 512ac: 8fa40210 */ lw $a0,0x210($sp)
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/* 512b0: 00002825 */ or $a1,$zero,$zero
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/* 512b4: 0c0144ec */ jal osGbpakReadWrite
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/* 512b8: 0240a025 */ or $s4,$s2,$zero
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/* 512bc: 10400003 */ beqz $v0,.L000512cc
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/* 512c0: 8fa40210 */ lw $a0,0x210($sp)
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/* 512c4: 1000002d */ b .L0005137c
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/* 512c8: 8fbf0044 */ lw $ra,0x44($sp)
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.L000512cc:
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/* 512cc: 8fa80204 */ lw $t0,0x204($sp)
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/* 512d0: 26862000 */ addiu $a2,$s4,0x2000
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/* 512d4: 27ae007c */ addiu $t6,$sp,0x7c
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/* 512d8: 000869c0 */ sll $t5,$t0,0x7
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/* 512dc: 01b06021 */ addu $t4,$t5,$s0
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/* 512e0: 018e8821 */ addu $s1,$t4,$t6
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/* 512e4: 30cbffff */ andi $t3,$a2,0xffff
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/* 512e8: 240f0020 */ addiu $t7,$zero,0x20
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/* 512ec: afaf0010 */ sw $t7,0x10($sp)
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/* 512f0: 01603025 */ or $a2,$t3,$zero
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/* 512f4: 02203825 */ or $a3,$s1,$zero
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/* 512f8: 0c0144ec */ jal osGbpakReadWrite
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/* 512fc: 00002825 */ or $a1,$zero,$zero
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/* 51300: 10400003 */ beqz $v0,.L00051310
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/* 51304: 02a02025 */ or $a0,$s5,$zero
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/* 51308: 1000001c */ b .L0005137c
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/* 5130c: 8fbf0044 */ lw $ra,0x44($sp)
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.L00051310:
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/* 51310: 02202825 */ or $a1,$s1,$zero
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/* 51314: 0c013824 */ jal bcmp
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/* 51318: 24060020 */ addiu $a2,$zero,0x20
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/* 5131c: 10400003 */ beqz $v0,.L0005132c
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/* 51320: 26920020 */ addiu $s2,$s4,0x20
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/* 51324: 10000008 */ b .L00051348
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/* 51328: 00009825 */ or $s3,$zero,$zero
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.L0005132c:
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/* 5132c: 2a620003 */ slti $v0,$s3,0x3
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/* 51330: 26730001 */ addiu $s3,$s3,0x1
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/* 51334: 3279ffff */ andi $t9,$s3,0xffff
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/* 51338: 3258ffff */ andi $t8,$s2,0xffff
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||||
/* 5133c: 03009025 */ or $s2,$t8,$zero
|
||||
/* 51340: 1440ffd2 */ bnez $v0,.L0005128c
|
||||
/* 51344: 03209825 */ or $s3,$t9,$zero
|
||||
.L00051348:
|
||||
/* 51348: 52600004 */ beqzl $s3,.L0005135c
|
||||
/* 5134c: 8fa40210 */ lw $a0,0x210($sp)
|
||||
/* 51350: 10000009 */ b .L00051378
|
||||
/* 51354: 24020004 */ addiu $v0,$zero,0x4
|
||||
/* 51358: 8fa40210 */ lw $a0,0x210($sp)
|
||||
.L0005135c:
|
||||
/* 5135c: 0c0142f8 */ jal osGbpakGetStatus
|
||||
/* 51360: 8fa50214 */ lw $a1,0x214($sp)
|
||||
/* 51364: 2401000d */ addiu $at,$zero,0xd
|
||||
/* 51368: 14410002 */ bne $v0,$at,.L00051374
|
||||
/* 5136c: 00401825 */ or $v1,$v0,$zero
|
||||
/* 51370: 24030004 */ addiu $v1,$zero,0x4
|
||||
.L00051374:
|
||||
/* 51374: 00601025 */ or $v0,$v1,$zero
|
||||
.L00051378:
|
||||
/* 51378: 8fbf0044 */ lw $ra,0x44($sp)
|
||||
.L0005137c:
|
||||
/* 5137c: 8fb00020 */ lw $s0,0x20($sp)
|
||||
/* 51380: 8fb10024 */ lw $s1,0x24($sp)
|
||||
/* 51384: 8fb20028 */ lw $s2,0x28($sp)
|
||||
/* 51388: 8fb3002c */ lw $s3,0x2c($sp)
|
||||
/* 5138c: 8fb40030 */ lw $s4,0x30($sp)
|
||||
/* 51390: 8fb50034 */ lw $s5,0x34($sp)
|
||||
/* 51394: 8fb60038 */ lw $s6,0x38($sp)
|
||||
/* 51398: 8fb7003c */ lw $s7,0x3c($sp)
|
||||
/* 5139c: 8fbe0040 */ lw $s8,0x40($sp)
|
||||
/* 513a0: 03e00008 */ jr $ra
|
||||
/* 513a4: 27bd0210 */ addiu $sp,$sp,0x210
|
||||
);
|
||||
/**
|
||||
* The internal operations performed by the osGbpakCheckConnector function are
|
||||
* as follows.
|
||||
*
|
||||
* - Checks the ROM area addresses of the Game Boy Game Pak and performs the
|
||||
* following processing for 0x0000, 0x0080, 0x0100, 0x0200, 0x0400, 0x0800,
|
||||
* 0x1000, 0x2000, and 0x4000.
|
||||
*
|
||||
* 1. Compares data starting at the above addresses with neighboring data in
|
||||
* 32-byte units.
|
||||
* 2. If the data are identical, compares the next 32 bytes, and if this is
|
||||
* also the same, compares the next 32 bytes. Up to 4 comparisons (ie, 128
|
||||
* bytes) are performed. If all data are identical, the address line is
|
||||
* considered insecurely connected and an error is returned. If different
|
||||
* data are detected even once, it is determined that the data are being
|
||||
* read properly and the function advances.
|
||||
* 3. Data at each of the above addresses are compared with the data starting
|
||||
* at 0x0000 in 32-byte units.
|
||||
* 4. As in 2., up to 4 comparisons (128 bytes) are made. If all the data are
|
||||
* identical, an error is returned. If different data are detected even
|
||||
* once, it is determined that the data are being read properly and the
|
||||
* function advances.
|
||||
*
|
||||
* - If a RAM area exists, the function checks the address of the Game Boy Game
|
||||
* Pak RAM area and performs the following processing for 0x2000 and 0xa000.
|
||||
*
|
||||
* 1. Compares the data starting at the above addresses in 32-byte units.
|
||||
* 2. If the data are identical, compares the next 32 bytes, and if this is
|
||||
* also the same, compares the next 32 bytes. Up to 4 comparisons (ie, 128
|
||||
* bytes) are performed. If all the data are the same, the address line is
|
||||
* evaluated to be insecurely connected and an error is returned. If
|
||||
* different data are detected even once, it is determined that the data
|
||||
* are being read properly and the function advances.
|
||||
*/
|
||||
s32 osGbpakCheckConnector(OSPfs *pfs, u8 *status)
|
||||
{
|
||||
s32 ret;
|
||||
s32 thisslot = 1;
|
||||
s32 prevslot = 0;
|
||||
u16 thischunkaddr;
|
||||
u16 prevchunkaddr = 0;
|
||||
u16 offset;
|
||||
u16 blocknum;
|
||||
u8 blocks[3][4][0x20];
|
||||
u8 blocksloaded[3][4];
|
||||
bool stilllooking;
|
||||
|
||||
ret = osGbpakGetStatus(pfs, status);
|
||||
|
||||
if (ret == PFS_ERR_NEW_GBCART) {
|
||||
ret = osGbpakGetStatus(pfs, status);
|
||||
}
|
||||
|
||||
if (ret == PFS_ERR_NEW_GBCART) {
|
||||
return PFS_ERR_CONTRFAIL;
|
||||
}
|
||||
|
||||
if (ret == 0) {
|
||||
if ((*status & OS_GBPAK_POWER) == 0) {
|
||||
ret = osGbpakPower(pfs, OS_GBPAK_POWER_ON);
|
||||
|
||||
if (ret != 0) {
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
bzero(blocksloaded, 12);
|
||||
|
||||
for (thischunkaddr = 0x80; thischunkaddr <= 0x4000; thischunkaddr *= 2) {
|
||||
blocknum = 0;
|
||||
offset = 0;
|
||||
|
||||
do {
|
||||
// Load the current block
|
||||
ret = osGbpakReadWrite(pfs, PFS_READ, thischunkaddr + offset, blocks[thisslot][blocknum], 32);
|
||||
|
||||
if (ret != 0) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
blocksloaded[thisslot][blocknum] = 1;
|
||||
|
||||
// Load the same block from the previous chunk if not already loaded
|
||||
// (This only applies for the 0x0000 chunk)
|
||||
if (blocksloaded[prevslot][blocknum] == 0) {
|
||||
ret = osGbpakReadWrite(pfs, PFS_READ, prevchunkaddr + offset, blocks[prevslot][blocknum], 32);
|
||||
|
||||
if (ret != 0) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
blocksloaded[prevslot][blocknum] = 1;
|
||||
}
|
||||
|
||||
// Compare them and bail out if different
|
||||
if (bcmp(blocks[thisslot][blocknum], blocks[prevslot][blocknum], 32) != 0) {
|
||||
blocknum = 0;
|
||||
break;
|
||||
}
|
||||
|
||||
stilllooking = blocknum < 3;
|
||||
offset += 0x20; blocknum++;
|
||||
} while (stilllooking);
|
||||
|
||||
if (blocknum);
|
||||
if (blocknum);
|
||||
if (blocknum);
|
||||
if (blocknum);
|
||||
if (blocknum);
|
||||
if (blocknum);
|
||||
|
||||
stilllooking = blocknum;
|
||||
|
||||
if (stilllooking) {
|
||||
return PFS_ERR_CONTRFAIL;
|
||||
}
|
||||
|
||||
// Now compare each block in this chunk with each block in the
|
||||
// 0x0000 chunk
|
||||
blocknum = 0;
|
||||
offset = 0;
|
||||
|
||||
if (prevslot != 0) {
|
||||
do {
|
||||
// Make sure the current block is loaded
|
||||
if (blocksloaded[thisslot][blocknum] == 0) {
|
||||
ret = osGbpakReadWrite(pfs, PFS_READ, thischunkaddr + offset, blocks[thisslot][blocknum], 32);
|
||||
|
||||
if (ret != 0) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
blocksloaded[thisslot][blocknum] = 1;
|
||||
}
|
||||
|
||||
// Make sure this block in chunk 0x0000 is loaded
|
||||
if (blocksloaded[0][blocknum] == 0) {
|
||||
ret = osGbpakReadWrite(pfs, PFS_READ, offset, blocks[0][blocknum], 32);
|
||||
|
||||
if (ret != 0) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
blocksloaded[0][blocknum] = 1;
|
||||
}
|
||||
|
||||
// Compare them and bail out if different
|
||||
if (bcmp(blocks[thisslot][blocknum], blocks[0][blocknum], 32) != 0) {
|
||||
stilllooking = false;
|
||||
goto foo;
|
||||
}
|
||||
|
||||
stilllooking = blocknum < 3;
|
||||
offset += 0x20; blocknum++;
|
||||
} while (stilllooking);
|
||||
|
||||
stilllooking = blocknum;
|
||||
}
|
||||
|
||||
foo:
|
||||
if (stilllooking) {
|
||||
return PFS_ERR_CONTRFAIL;
|
||||
}
|
||||
|
||||
if (prevslot != 0) {
|
||||
bzero(&blocksloaded[prevslot][0], 4);
|
||||
}
|
||||
|
||||
prevchunkaddr = thischunkaddr;
|
||||
prevslot = thisslot;
|
||||
thisslot ^= 3; // toggle between 1 and 2
|
||||
}
|
||||
|
||||
// Check RAM if present
|
||||
if (pfs->dir_size >= 2 || pfs->version == 2) {
|
||||
blocknum = 0;
|
||||
offset = 0;
|
||||
|
||||
do {
|
||||
ret = osGbpakReadWrite(pfs, PFS_READ, 0xa000 + offset, blocks[thisslot][blocknum], 32);
|
||||
|
||||
if (ret != 0) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = osGbpakReadWrite(pfs, PFS_READ, 0x2000 + offset, blocks[prevslot][blocknum], 32);
|
||||
|
||||
if (ret != 0) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (bcmp(blocks[thisslot][blocknum], blocks[prevslot][blocknum], 32) != 0) {
|
||||
blocknum = 0;
|
||||
break;
|
||||
}
|
||||
|
||||
stilllooking = blocknum < 3;
|
||||
offset += 0x20; blocknum++;
|
||||
} while (stilllooking);
|
||||
|
||||
stilllooking = blocknum;
|
||||
|
||||
if (stilllooking) {
|
||||
return PFS_ERR_CONTRFAIL;
|
||||
}
|
||||
}
|
||||
|
||||
ret = osGbpakGetStatus(pfs, status);
|
||||
|
||||
if (ret == PFS_ERR_NEW_GBCART) {
|
||||
ret = PFS_ERR_CONTRFAIL;
|
||||
}
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user