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Decompile osPfsDeleteFile

This commit is contained in:
Ryan Dwyer 2021-03-25 16:58:36 +10:00
parent 584d5c6a53
commit f3989d9e74
4 changed files with 64 additions and 140 deletions
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2
src/game/pak/pak.c
View File

@ -1742,7 +1742,7 @@ s32 func0f117d90(OSPfs *pfs, u16 company_code, u32 game_code, char *game_name, c
u32 func0f117e00(OSPfs *pfs, u16 company_code, u32 game_code, char *game_name, char *ext_name)
{
if (pfs) {
return func0004d480(pfs, company_code, game_code, game_name, ext_name);
return osPfsDeleteFile(pfs, company_code, game_code, game_name, ext_name);
}
if (g_PakHasEeprom == 0) {

4
src/include/lib/lib_4d480.h
View File

@ -4,7 +4,7 @@
#include "data.h"
#include "types.h"
u32 func0004d480(OSPfs *pfs, u16 company_code, u32 game_code, char *game_name, char *ext_name);
u32 func0004d658(void);
s32 osPfsDeleteFile(OSPfs *pfs, u16 company_code, u32 game_code, char *game_name, char *ext_name);
s32 __osPfsReleasePages(OSPfs *pfs, __OSInode *inode, u8 initialPage, u8 bank, __OSInodeUnit* final_page);
#endif

2
src/lib/lib_06550.c
View File

@ -509,7 +509,7 @@ glabel func00006550
/* 6c30: 02802825 */ or $a1,$s4,$zero
/* 6c34: 93a6005d */ lbu $a2,0x5d($sp)
/* 6c38: 32c700ff */ andi $a3,$s6,0xff
/* 6c3c: 0c013596 */ jal func0004d658
/* 6c3c: 0c013596 */ jal __osPfsReleasePages
/* 6c40: afb00010 */ sw $s0,0x10($sp)
/* 6c44: 10400003 */ beqz $v0,.L00006c54
/* 6c48: 02a02025 */ or $a0,$s5,$zero

196
src/lib/lib_4d480.c
View File

@ -7,144 +7,68 @@
#include "data.h"
#include "types.h"
GLOBAL_ASM(
glabel func0004d480
/* 4d480: 27bdfe90 */ addiu $sp,$sp,-368
/* 4d484: afb20024 */ sw $s2,0x24($sp)
/* 4d488: afa50174 */ sw $a1,0x174($sp)
/* 4d48c: 30aeffff */ andi $t6,$a1,0xffff
/* 4d490: 01c02825 */ or $a1,$t6,$zero
/* 4d494: 00809025 */ or $s2,$a0,$zero
/* 4d498: afbf0034 */ sw $ra,0x34($sp)
/* 4d49c: afb50030 */ sw $s5,0x30($sp)
/* 4d4a0: afb4002c */ sw $s4,0x2c($sp)
/* 4d4a4: afb30028 */ sw $s3,0x28($sp)
/* 4d4a8: afb10020 */ sw $s1,0x20($sp)
/* 4d4ac: 11c00003 */ beqz $t6,.L0004d4bc
/* 4d4b0: afb0001c */ sw $s0,0x1c($sp)
/* 4d4b4: 14c00003 */ bnez $a2,.L0004d4c4
/* 4d4b8: 02402025 */ or $a0,$s2,$zero
.L0004d4bc:
/* 4d4bc: 1000005d */ b .L0004d634
/* 4d4c0: 24020005 */ addiu $v0,$zero,0x5
.L0004d4c4:
/* 4d4c4: 8faf0180 */ lw $t7,0x180($sp)
/* 4d4c8: 27b8016c */ addiu $t8,$sp,0x16c
/* 4d4cc: afb80014 */ sw $t8,0x14($sp)
/* 4d4d0: 0c013304 */ jal osPfsFindFile
/* 4d4d4: afaf0010 */ sw $t7,0x10($sp)
/* 4d4d8: 50400004 */ beqzl $v0,.L0004d4ec
/* 4d4dc: 92590065 */ lbu $t9,0x65($s2)
/* 4d4e0: 10000055 */ b .L0004d638
/* 4d4e4: 8fbf0034 */ lw $ra,0x34($sp)
/* 4d4e8: 92590065 */ lbu $t9,0x65($s2)
.L0004d4ec:
/* 4d4ec: 02402025 */ or $a0,$s2,$zero
/* 4d4f0: 53200008 */ beqzl $t9,.L0004d514
/* 4d4f4: 8e48005c */ lw $t0,0x5c($s2)
/* 4d4f8: 0c013378 */ jal __osPfsSelectBank
/* 4d4fc: 00002825 */ or $a1,$zero,$zero
/* 4d500: 50400004 */ beqzl $v0,.L0004d514
/* 4d504: 8e48005c */ lw $t0,0x5c($s2)
/* 4d508: 1000004b */ b .L0004d638
/* 4d50c: 8fbf0034 */ lw $ra,0x34($sp)
/* 4d510: 8e48005c */ lw $t0,0x5c($s2)
.L0004d514:
/* 4d514: 8fa9016c */ lw $t1,0x16c($sp)
/* 4d518: 8e440004 */ lw $a0,0x4($s2)
/* 4d51c: 8e450008 */ lw $a1,0x8($s2)
/* 4d520: 01093021 */ addu $a2,$t0,$t1
/* 4d524: 30caffff */ andi $t2,$a2,0xffff
/* 4d528: 01403025 */ or $a2,$t2,$zero
/* 4d52c: 0c012e18 */ jal __osContRamRead
/* 4d530: 27a70048 */ addiu $a3,$sp,0x48
/* 4d534: 10400003 */ beqz $v0,.L0004d544
/* 4d538: 93b0004e */ lbu $s0,0x4e($sp)
/* 4d53c: 1000003e */ b .L0004d638
/* 4d540: 8fbf0034 */ lw $ra,0x34($sp)
.L0004d544:
/* 4d544: 92420064 */ lbu $v0,0x64($s2)
/* 4d548: 93b3004f */ lbu $s3,0x4f($sp)
/* 4d54c: 24150001 */ addiu $s5,$zero,0x1
/* 4d550: 0202082a */ slt $at,$s0,$v0
/* 4d554: 10200026 */ beqz $at,.L0004d5f0
/* 4d558: 27b40044 */ addiu $s4,$sp,0x44
/* 4d55c: 27b10068 */ addiu $s1,$sp,0x68
/* 4d560: 02402025 */ or $a0,$s2,$zero
.L0004d564:
/* 4d564: 02202825 */ or $a1,$s1,$zero
/* 4d568: 00003025 */ or $a2,$zero,$zero
/* 4d56c: 0c01324d */ jal __osPfsRWInode
/* 4d570: 320700ff */ andi $a3,$s0,0xff
/* 4d574: 10400003 */ beqz $v0,.L0004d584
/* 4d578: 02402025 */ or $a0,$s2,$zero
/* 4d57c: 1000002e */ b .L0004d638
/* 4d580: 8fbf0034 */ lw $ra,0x34($sp)
.L0004d584:
/* 4d584: 02202825 */ or $a1,$s1,$zero
/* 4d588: 326600ff */ andi $a2,$s3,0xff
/* 4d58c: 320700ff */ andi $a3,$s0,0xff
/* 4d590: 0c013596 */ jal func0004d658
/* 4d594: afb40010 */ sw $s4,0x10($sp)
/* 4d598: 10400003 */ beqz $v0,.L0004d5a8
/* 4d59c: 02402025 */ or $a0,$s2,$zero
/* 4d5a0: 10000025 */ b .L0004d638
/* 4d5a4: 8fbf0034 */ lw $ra,0x34($sp)
.L0004d5a8:
/* 4d5a8: 02202825 */ or $a1,$s1,$zero
/* 4d5ac: 24060001 */ addiu $a2,$zero,0x1
/* 4d5b0: 0c01324d */ jal __osPfsRWInode
/* 4d5b4: 320700ff */ andi $a3,$s0,0xff
/* 4d5b8: 10400003 */ beqz $v0,.L0004d5c8
/* 4d5bc: 97ac0044 */ lhu $t4,0x44($sp)
/* 4d5c0: 1000001d */ b .L0004d638
/* 4d5c4: 8fbf0034 */ lw $ra,0x34($sp)
.L0004d5c8:
/* 4d5c8: 56ac0004 */ bnel $s5,$t4,.L0004d5dc
/* 4d5cc: 92420064 */ lbu $v0,0x64($s2)
/* 4d5d0: 10000007 */ b .L0004d5f0
/* 4d5d4: 92420064 */ lbu $v0,0x64($s2)
/* 4d5d8: 92420064 */ lbu $v0,0x64($s2)
.L0004d5dc:
/* 4d5dc: 93b00044 */ lbu $s0,0x44($sp)
/* 4d5e0: 93b30045 */ lbu $s3,0x45($sp)
/* 4d5e4: 0202082a */ slt $at,$s0,$v0
/* 4d5e8: 5420ffde */ bnezl $at,.L0004d564
/* 4d5ec: 02402025 */ or $a0,$s2,$zero
.L0004d5f0:
/* 4d5f0: 0202082a */ slt $at,$s0,$v0
/* 4d5f4: 14200003 */ bnez $at,.L0004d604
/* 4d5f8: 27a40048 */ addiu $a0,$sp,0x48
/* 4d5fc: 1000000d */ b .L0004d634
/* 4d600: 24020003 */ addiu $v0,$zero,0x3
.L0004d604:
/* 4d604: 0c012c30 */ jal bzero
/* 4d608: 24050020 */ addiu $a1,$zero,0x20
/* 4d60c: 8e4d005c */ lw $t5,0x5c($s2)
/* 4d610: 8fae016c */ lw $t6,0x16c($sp)
/* 4d614: 8e440004 */ lw $a0,0x4($s2)
/* 4d618: 8e450008 */ lw $a1,0x8($s2)
/* 4d61c: 01ae3021 */ addu $a2,$t5,$t6
/* 4d620: 30cfffff */ andi $t7,$a2,0xffff
/* 4d624: 01e03025 */ or $a2,$t7,$zero
/* 4d628: afa00010 */ sw $zero,0x10($sp)
/* 4d62c: 0c012d84 */ jal __osContRamWrite
/* 4d630: 27a70048 */ addiu $a3,$sp,0x48
.L0004d634:
/* 4d634: 8fbf0034 */ lw $ra,0x34($sp)
.L0004d638:
/* 4d638: 8fb0001c */ lw $s0,0x1c($sp)
/* 4d63c: 8fb10020 */ lw $s1,0x20($sp)
/* 4d640: 8fb20024 */ lw $s2,0x24($sp)
/* 4d644: 8fb30028 */ lw $s3,0x28($sp)
/* 4d648: 8fb4002c */ lw $s4,0x2c($sp)
/* 4d64c: 8fb50030 */ lw $s5,0x30($sp)
/* 4d650: 03e00008 */ jr $ra
/* 4d654: 27bd0170 */ addiu $sp,$sp,0x170
);
s32 osPfsDeleteFile(OSPfs *pfs, u16 company_code, u32 game_code, char *game_name, char *ext_name)
{
s32 file_no;
s32 ret;
__OSInode inode;
__OSDir dir;
__OSInodeUnit last_page;
u8 startpage;
u8 bank;
if (company_code == 0 || game_code == 0) {
return PFS_ERR_INVALID;
}
if ((ret = osPfsFindFile(pfs, company_code, game_code, game_name, ext_name, &file_no)) != 0) {
return ret;
}
if (pfs->activebank != 0 && (ret = __osPfsSelectBank(pfs, 0)) != 0) {
return ret;
}
if ((ret = __osContRamRead(pfs->queue, pfs->channel, pfs->dir_table + file_no, (u8*)&dir)) != 0) {
return ret;
}
startpage = dir.start_page.inode_t.page;
for (bank = dir.start_page.inode_t.bank; bank < pfs->banks;) {
if ((ret = __osPfsRWInode(pfs, &inode, PFS_READ, bank)) != 0) {
return ret;
}
if ((ret = __osPfsReleasePages(pfs, &inode, startpage, bank, &last_page)) != 0) {
return ret;
}
if ((ret = __osPfsRWInode(pfs, &inode, PFS_WRITE, bank)) != 0) {
return ret;
}
if (last_page.ipage == 1) {
break;
}
bank = last_page.inode_t.bank;
startpage = last_page.inode_t.page;
}
if (bank >= pfs->banks) {
return PFS_ERR_INCONSISTENT;
}
bzero(&dir, sizeof(__OSDir));
ret = __osContRamWrite(pfs->queue, pfs->channel, pfs->dir_table + file_no, (u8*)&dir, 0);
return ret;
}
GLOBAL_ASM(
glabel func0004d658
glabel __osPfsReleasePages
/* 4d658: 27bdfff0 */ addiu $sp,$sp,-16
/* 4d65c: 30e200ff */ andi $v0,$a3,0xff
/* 4d660: 30ce00ff */ andi $t6,$a2,0xff