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Decompile osPfsFreeBlocks

This commit is contained in:
Ryan Dwyer 2021-03-25 14:13:34 +10:00
parent 74179a237e
commit 42c2dc2801
11 changed files with 55 additions and 151 deletions
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1
Makefile
View File

@ -70,6 +70,7 @@ $(B_DIR)/lib/ultra/io/contpfs.o: LOOPUNROLL :=
$(B_DIR)/lib/ultra/io/contramread.o: LOOPUNROLL :=
$(B_DIR)/lib/ultra/io/contramwrite.o: LOOPUNROLL :=
$(B_DIR)/lib/ultra/io/pfschecker.o: LOOPUNROLL :=
$(B_DIR)/lib/ultra/io/pfsfreeblocks.o: LOOPUNROLL :=
$(B_DIR)/lib/ultra/io/pfsgetstatus.o: LOOPUNROLL :=
$(B_DIR)/lib/ultra/libc/ll.o: MIPSISET := -mips3 -o32

2
ld/libfiles.ntsc-beta.inc
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@ -165,7 +165,7 @@
build/ROMID/lib/ultra/io/contpfs.o (section); \
build/ROMID/lib/lib_4cc10.o (section); \
build/ROMID/lib/ultra/io/pfsselectbank.o (section); \
build/ROMID/lib/lib_4ce60.o (section); \
build/ROMID/lib/ultra/io/pfsfreeblocks.o (section); \
build/ROMID/lib/lib_4d000.o (section); \
build/ROMID/lib/lib_4d480.o (section); \
build/ROMID/lib/ultra/io/siacs.o (section); \

2
ld/libfiles.ntsc-final.inc
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@ -164,7 +164,7 @@
build/ROMID/lib/ultra/io/contpfs.o (section); \
build/ROMID/lib/lib_4cc10.o (section); \
build/ROMID/lib/ultra/io/pfsselectbank.o (section); \
build/ROMID/lib/lib_4ce60.o (section); \
build/ROMID/lib/ultra/io/pfsfreeblocks.o (section); \
build/ROMID/lib/lib_4d000.o (section); \
build/ROMID/lib/lib_4d480.o (section); \
build/ROMID/lib/ultra/io/pfschecker.o (section); \

2
ld/libfiles.pal-final.inc
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@ -163,7 +163,7 @@
build/ROMID/lib/ultra/io/contpfs.o (section); \
build/ROMID/lib/lib_4cc10.o (section); \
build/ROMID/lib/ultra/io/pfsselectbank.o (section); \
build/ROMID/lib/lib_4ce60.o (section); \
build/ROMID/lib/ultra/io/pfsfreeblocks.o (section); \
build/ROMID/lib/lib_4d000.o (section); \
build/ROMID/lib/lib_4d480.o (section); \
build/ROMID/lib/ultra/io/pfschecker.o (section); \

3
src/game/pak/pak.c
View File

@ -16,7 +16,6 @@
#include "lib/memory.h"
#include "lib/rng.h"
#include "lib/lib_4cc10.h"
#include "lib/lib_4ce60.h"
#include "lib/lib_4d000.h"
#include "lib/lib_4d480.h"
#include "lib/lib_4e090.h"
@ -1669,7 +1668,7 @@ s32 func0f117c80(OSPfs *pfs, s32 *arg1)
joy000150e8(1337, "pak.c");
#endif
result = func0004ce60(pfs, arg1);
result = osPfsFreeBlocks(pfs, arg1);
#if VERSION >= VERSION_NTSC_1_0
joy00015144();

10
src/include/PR/os_pfs.h
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@ -94,10 +94,12 @@ typedef struct {
#define PFS_FILE_NAME_LEN 16
#define PFS_FILE_EXT_LEN 4
#define BLOCKSIZE 32 /* bytes */
#define PFS_ONE_PAGE 8 /* blocks */
#define PFS_MAX_BANKS 62
#define PFS_LABEL_AREA 7
#define BLOCKSIZE 32 /* bytes */
#define PFS_ONE_PAGE 8 /* blocks */
#define PFS_MAX_BANKS 62
#define PFS_LABEL_AREA 7
#define PFS_INODE_SIZE_PER_PAGE 128
#define PFS_PAGE_NOT_USED 3
#define PFS_READ 0
#define PFS_WRITE 1

9
src/include/lib/lib_4ce60.h
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@ -1,9 +0,0 @@
#ifndef _IN_LIB_LIB_4CE60_H
#define _IN_LIB_LIB_4CE60_H
#include <ultra64.h>
#include "data.h"
#include "types.h"
s32 func0004ce60(OSPfs *pfs, s32 *arg1);
#endif

3
src/lib/lib_06550.c
View File

@ -5,7 +5,6 @@
#include "lib/lib_06550.h"
#include "lib/lib_4b170.h"
#include "lib/lib_4cc10.h"
#include "lib/lib_4ce60.h"
#include "lib/lib_4d000.h"
#include "lib/lib_4d480.h"
#include "lib/lib_4e090.h"
@ -208,7 +207,7 @@ glabel func00006550
/* 67fc: 0123082a */ slt $at,$t1,$v1
/* 6800: 01e38023 */ subu $s0,$t7,$v1
/* 6804: 02008825 */ or $s1,$s0,$zero
/* 6808: 0c013398 */ jal func0004ce60
/* 6808: 0c013398 */ jal osPfsFreeBlocks
/* 680c: 02a02025 */ or $a0,$s5,$zero
/* 6810: 8fb8008c */ lw $t8,0x8c($sp)
/* 6814: 32d200ff */ andi $s2,$s6,0xff

129
src/lib/lib_4ce60.c
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@ -1,129 +0,0 @@
#include <ultra64.h>
#include "libultra_internal.h"
#include "constants.h"
#include "bss.h"
#include "data.h"
#include "types.h"
GLOBAL_ASM(
glabel func0004ce60
/* 4ce60: 27bdfeb0 */ addiu $sp,$sp,-336
/* 4ce64: afbf002c */ sw $ra,0x2c($sp)
/* 4ce68: afb50028 */ sw $s5,0x28($sp)
/* 4ce6c: afb40024 */ sw $s4,0x24($sp)
/* 4ce70: afb30020 */ sw $s3,0x20($sp)
/* 4ce74: afb2001c */ sw $s2,0x1c($sp)
/* 4ce78: afb10018 */ sw $s1,0x18($sp)
/* 4ce7c: afb00014 */ sw $s0,0x14($sp)
/* 4ce80: afa50154 */ sw $a1,0x154($sp)
/* 4ce84: 8c8e0000 */ lw $t6,0x0($a0)
/* 4ce88: 0080a025 */ or $s4,$a0,$zero
/* 4ce8c: 00008025 */ or $s0,$zero,$zero
/* 4ce90: 31cf0001 */ andi $t7,$t6,0x1
/* 4ce94: 15e00003 */ bnez $t7,.L0004cea4
/* 4ce98: 00000000 */ nop
/* 4ce9c: 1000004d */ b .L0004cfd4
/* 4cea0: 24020005 */ addiu $v0,$zero,0x5
.L0004cea4:
/* 4cea4: 0c013218 */ jal __osCheckId
/* 4cea8: 02802025 */ or $a0,$s4,$zero
/* 4ceac: 50400004 */ beqzl $v0,.L0004cec0
/* 4ceb0: 92980064 */ lbu $t8,0x64($s4)
/* 4ceb4: 10000048 */ b .L0004cfd8
/* 4ceb8: 8fbf002c */ lw $ra,0x2c($sp)
/* 4cebc: 92980064 */ lbu $t8,0x64($s4)
.L0004cec0:
/* 4cec0: 00009825 */ or $s3,$zero,$zero
/* 4cec4: 24150080 */ addiu $s5,$zero,0x80
/* 4cec8: 1b00003e */ blez $t8,.L0004cfc4
/* 4cecc: 27b20148 */ addiu $s2,$sp,0x148
/* 4ced0: 24110003 */ addiu $s1,$zero,0x3
.L0004ced4:
/* 4ced4: 02802025 */ or $a0,$s4,$zero
/* 4ced8: 27a50048 */ addiu $a1,$sp,0x48
/* 4cedc: 00003025 */ or $a2,$zero,$zero
/* 4cee0: 0c01324d */ jal __osPfsRWInode
/* 4cee4: 326700ff */ andi $a3,$s3,0xff
/* 4cee8: 10400003 */ beqz $v0,.L0004cef8
/* 4ceec: 00000000 */ nop
/* 4cef0: 10000039 */ b .L0004cfd8
/* 4cef4: 8fbf002c */ lw $ra,0x2c($sp)
.L0004cef8:
/* 4cef8: 5a600004 */ blezl $s3,.L0004cf0c
/* 4cefc: 8e850060 */ lw $a1,0x60($s4)
/* 4cf00: 10000002 */ b .L0004cf0c
/* 4cf04: 24050001 */ addiu $a1,$zero,0x1
/* 4cf08: 8e850060 */ lw $a1,0x60($s4)
.L0004cf0c:
/* 4cf0c: 28a10080 */ slti $at,$a1,0x80
/* 4cf10: 10200026 */ beqz $at,.L0004cfac
/* 4cf14: 00a01825 */ or $v1,$a1,$zero
/* 4cf18: 02a53023 */ subu $a2,$s5,$a1
/* 4cf1c: 30d90003 */ andi $t9,$a2,0x3
/* 4cf20: 1320000c */ beqz $t9,.L0004cf54
/* 4cf24: 03252021 */ addu $a0,$t9,$a1
/* 4cf28: 00054040 */ sll $t0,$a1,0x1
/* 4cf2c: 27a90048 */ addiu $t1,$sp,0x48
/* 4cf30: 01091021 */ addu $v0,$t0,$t1
.L0004cf34:
/* 4cf34: 944a0000 */ lhu $t2,0x0($v0)
/* 4cf38: 24630001 */ addiu $v1,$v1,0x1
/* 4cf3c: 162a0002 */ bne $s1,$t2,.L0004cf48
/* 4cf40: 00000000 */ nop
/* 4cf44: 26100001 */ addiu $s0,$s0,0x1
.L0004cf48:
/* 4cf48: 1483fffa */ bne $a0,$v1,.L0004cf34
/* 4cf4c: 24420002 */ addiu $v0,$v0,0x2
/* 4cf50: 10750016 */ beq $v1,$s5,.L0004cfac
.L0004cf54:
/* 4cf54: 00035840 */ sll $t3,$v1,0x1
/* 4cf58: 27ac0048 */ addiu $t4,$sp,0x48
/* 4cf5c: 016c1021 */ addu $v0,$t3,$t4
/* 4cf60: 944d0000 */ lhu $t5,0x0($v0)
.L0004cf64:
/* 4cf64: 562d0003 */ bnel $s1,$t5,.L0004cf74
/* 4cf68: 944e0002 */ lhu $t6,0x2($v0)
/* 4cf6c: 26100001 */ addiu $s0,$s0,0x1
/* 4cf70: 944e0002 */ lhu $t6,0x2($v0)
.L0004cf74:
/* 4cf74: 562e0003 */ bnel $s1,$t6,.L0004cf84
/* 4cf78: 944f0004 */ lhu $t7,0x4($v0)
/* 4cf7c: 26100001 */ addiu $s0,$s0,0x1
/* 4cf80: 944f0004 */ lhu $t7,0x4($v0)
.L0004cf84:
/* 4cf84: 562f0003 */ bnel $s1,$t7,.L0004cf94
/* 4cf88: 94580006 */ lhu $t8,0x6($v0)
/* 4cf8c: 26100001 */ addiu $s0,$s0,0x1
/* 4cf90: 94580006 */ lhu $t8,0x6($v0)
.L0004cf94:
/* 4cf94: 24420008 */ addiu $v0,$v0,0x8
/* 4cf98: 16380002 */ bne $s1,$t8,.L0004cfa4
/* 4cf9c: 00000000 */ nop
/* 4cfa0: 26100001 */ addiu $s0,$s0,0x1
.L0004cfa4:
/* 4cfa4: 5452ffef */ bnel $v0,$s2,.L0004cf64
/* 4cfa8: 944d0000 */ lhu $t5,0x0($v0)
.L0004cfac:
/* 4cfac: 92880064 */ lbu $t0,0x64($s4)
/* 4cfb0: 26730001 */ addiu $s3,$s3,0x1
/* 4cfb4: 327900ff */ andi $t9,$s3,0xff
/* 4cfb8: 0328082a */ slt $at,$t9,$t0
/* 4cfbc: 1420ffc5 */ bnez $at,.L0004ced4
/* 4cfc0: 03209825 */ or $s3,$t9,$zero
.L0004cfc4:
/* 4cfc4: 8faa0154 */ lw $t2,0x154($sp)
/* 4cfc8: 00104a00 */ sll $t1,$s0,0x8
/* 4cfcc: 00001025 */ or $v0,$zero,$zero
/* 4cfd0: ad490000 */ sw $t1,0x0($t2)
.L0004cfd4:
/* 4cfd4: 8fbf002c */ lw $ra,0x2c($sp)
.L0004cfd8:
/* 4cfd8: 8fb00014 */ lw $s0,0x14($sp)
/* 4cfdc: 8fb10018 */ lw $s1,0x18($sp)
/* 4cfe0: 8fb2001c */ lw $s2,0x1c($sp)
/* 4cfe4: 8fb30020 */ lw $s3,0x20($sp)
/* 4cfe8: 8fb40024 */ lw $s4,0x24($sp)
/* 4cfec: 8fb50028 */ lw $s5,0x28($sp)
/* 4cff0: 03e00008 */ jr $ra
/* 4cff4: 27bd0150 */ addiu $sp,$sp,0x150
);

3
src/lib/lib_4d000.c
View File

@ -4,7 +4,6 @@
#include "bss.h"
#include "lib/lib_4b170.h"
#include "lib/lib_4cc10.h"
#include "lib/lib_4ce60.h"
#include "lib/lib_4d000.h"
#include "data.h"
#include "types.h"
@ -70,7 +69,7 @@ glabel func0004d000
/* 4d0cc: 1000008e */ b .L0004d308
/* 4d0d0: 24020009 */ addiu $v0,$zero,0x9
.L0004d0d4:
/* 4d0d4: 0c013398 */ jal func0004ce60
/* 4d0d4: 0c013398 */ jal osPfsFreeBlocks
/* 4d0d8: 27a50054 */ addiu $a1,$sp,0x54
/* 4d0dc: 8faa0054 */ lw $t2,0x54($sp)
/* 4d0e0: 0151082a */ slt $at,$t2,$s1

42
src/lib/ultra/io/pfsfreeblocks.c Normal file
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@ -0,0 +1,42 @@
#include <ultra64.h>
#include "libultra_internal.h"
#include "constants.h"
#include "bss.h"
#include "data.h"
#include "types.h"
s32 osPfsFreeBlocks(OSPfs *pfs, s32 *remaining)
{
s32 j;
s32 pages = 0;
__OSInode inode;
s32 ret = 0;
u8 bank;
s32 offset;
if (!(pfs->status & PFS_INITIALIZED)) {
return PFS_ERR_INVALID;
}
if ((ret = __osCheckId(pfs)) != 0) {
return ret;
}
for (bank = 0; bank < pfs->banks; bank++) {
if ((ret = __osPfsRWInode(pfs, &inode, PFS_READ, bank)) != 0) {
return ret;
}
offset = ((bank > 0) ? 1 : pfs->inode_start_page);
for (j = offset; j < PFS_INODE_SIZE_PER_PAGE; j++) {
if (inode.inode_page[j].ipage == PFS_PAGE_NOT_USED) {
pages++;
}
}
}
*remaining = pages * PFS_ONE_PAGE * BLOCKSIZE;
return 0;
}