diff options
Diffstat (limited to 'libpcsxcore')
| -rw-r--r-- | libpcsxcore/psxbios.c | 145 |
1 files changed, 87 insertions, 58 deletions
diff --git a/libpcsxcore/psxbios.c b/libpcsxcore/psxbios.c index 42926c2..fd60955 100644 --- a/libpcsxcore/psxbios.c +++ b/libpcsxcore/psxbios.c @@ -1681,43 +1681,70 @@ void psxBios_UnDeliverEvent() { // 0x20 pc0 = ra; } -#define buopen(mcd) { \ - strcpy(FDesc[1 + mcd].name, Ra0+5); \ - FDesc[1 + mcd].offset = 0; \ - FDesc[1 + mcd].mode = a1; \ - \ - for (i=1; i<16; i++) { \ - ptr = Mcd##mcd##Data + 128 * i; \ - if ((*ptr & 0xF0) != 0x50) continue; \ - if (strcmp(FDesc[1 + mcd].name, ptr+0xa)) continue; \ - FDesc[1 + mcd].mcfile = i; \ - SysPrintf("open %s\n", ptr+0xa); \ - v0 = 1 + mcd; \ - break; \ - } \ - if (a1 & 0x200 && v0 == -1) { /* FCREAT */ \ - for (i=1; i<16; i++) { \ - int j, xor = 0; \ - \ - ptr = Mcd##mcd##Data + 128 * i; \ - if ((*ptr & 0xF0) == 0x50) continue; \ - ptr[0] = 0x50 | (u8)(a1 >> 16); \ - ptr[4] = 0x00; \ - ptr[5] = 0x20; \ - ptr[6] = 0x00; \ - ptr[7] = 0x00; \ - ptr[8] = 'B'; \ - ptr[9] = 'I'; \ - strcpy(ptr+0xa, FDesc[1 + mcd].name); \ - for (j=0; j<127; j++) xor^= ptr[j]; \ - ptr[127] = xor; \ - FDesc[1 + mcd].mcfile = i; \ - SysPrintf("openC %s\n", ptr); \ - v0 = 1 + mcd; \ - SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 128); \ - break; \ - } \ - } \ +char ffile[64], *pfile; +int nfile; +static void buopen(int mcd, u8 *ptr, u8 *cfg) +{ + int i; + u8 *fptr = ptr; + + strcpy(FDesc[1 + mcd].name, Ra0+5); + FDesc[1 + mcd].offset = 0; + FDesc[1 + mcd].mode = a1; + + for (i=1; i<16; i++) { + fptr += 128; + if ((*fptr & 0xF0) != 0x50) continue; + if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue; + FDesc[1 + mcd].mcfile = i; + SysPrintf("open %s\n", fptr+0xa); + v0 = 1 + mcd; + break; + } + if (a1 & 0x200 && v0 == -1) { /* FCREAT */ + fptr = ptr; + for (i=1; i<16; i++) { + int j, xor, nblk = a1 >> 16; + u8 *pptr, *fptr2; + + fptr += 128; + if ((*fptr & 0xF0) != 0xa0) continue; + + FDesc[1 + mcd].mcfile = i; + fptr[0] = 0x51; + fptr[4] = 0x00; + fptr[5] = 0x20 * nblk; + fptr[6] = 0x00; + fptr[7] = 0x00; + strcpy(fptr+0xa, FDesc[1 + mcd].name); + pptr = fptr2 = fptr; + for(j=2; j<=nblk; j++) { + int k; + for(i++; i<16; i++) { + fptr2 += 128; + + memset(fptr2, 0, 128); + fptr2[0] = j < nblk ? 0x52 : 0x53; + pptr[8] = i - 1; + pptr[9] = 0; + for (k=0, xor=0; k<127; k++) xor^= pptr[k]; + pptr[127] = xor; + pptr = fptr2; + break; + } + /* shouldn't this return ENOSPC if i == 16? */ + } + pptr[8] = pptr[9] = 0xff; + for (j=0, xor=0; j<127; j++) xor^= pptr[j]; + pptr[127] = xor; + SysPrintf("openC %s %d\n", ptr, nblk); + v0 = 1 + mcd; + /* just go ahead and resave them all */ + SaveMcd(cfg, ptr, 128, 128 * 15); + break; + } + /* shouldn't this return ENOSPC if i == 16? */ + } } /* @@ -1737,11 +1764,11 @@ void psxBios_open() { // 0x32 if (pa0) { if (!strncmp(pa0, "bu00", 4)) { - buopen(1); + buopen(1, Mcd1Data, Config.Mcd1); } if (!strncmp(pa0, "bu10", 4)) { - buopen(2); + buopen(2, Mcd2Data, Config.Mcd2); } } @@ -1774,17 +1801,19 @@ void psxBios_lseek() { // 0x33 pc0 = ra; } -#define buread(Ra1, mcd) { \ +#define buread(Ra1, mcd, length) { \ SysPrintf("read %d: %x,%x (%s)\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2, Mcd##mcd##Data + 128 * FDesc[1 + mcd].mcfile + 0xa); \ ptr = Mcd##mcd##Data + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \ - memcpy(Ra1, ptr, a2); \ - if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \ - else v0 = a2; \ - FDesc[1 + mcd].offset += v0; \ + memcpy(Ra1, ptr, length); \ DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \ DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \ + if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \ + else v0 = length; \ + FDesc[1 + mcd].offset += v0; \ } + + /* * int read(int fd , void *buf , int nbytes); */ @@ -1801,25 +1830,24 @@ void psxBios_read() { // 0x34 if (pa1) { switch (a0) { - case 2: buread(pa1, 1); break; - case 3: buread(pa1, 2); break; + case 2: buread(pa1, 1, a2); break; + case 3: buread(pa1, 2, a2); break; } } pc0 = ra; } -#define buwrite(Ra1, mcd) { \ +#define buwrite(Ra1, mcd, length) { \ u32 offset = + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \ SysPrintf("write %d: %x,%x\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2); \ ptr = Mcd##mcd##Data + offset; \ - memcpy(ptr, Ra1, a2); \ - FDesc[1 + mcd].offset += a2; \ - SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, offset, a2); \ - if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \ - else v0 = a2; \ + memcpy(ptr, Ra1, length); \ DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \ DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \ + FDesc[1 + mcd].offset += length; \ + if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \ + else v0 = length; \ } /* @@ -1851,8 +1879,8 @@ void psxBios_write() { // 0x35/0x03 } switch (a0) { - case 2: buwrite(pa1, 1); break; - case 3: buwrite(pa1, 2); break; + case 2: buwrite(pa1, 1, a2); break; + case 3: buwrite(pa1, 2, a2); break; } pc0 = ra; @@ -1888,17 +1916,18 @@ int nfile; while (nfile < 16) { \ int match=1; \ \ - ptr = Mcd##mcd##Data + 128 * nfile; \ + ptr = Mcd##mcd##Data + 128 * (nfile + 1); \ nfile++; \ if ((*ptr & 0xF0) != 0x50) continue; \ + /* Bug link files show up as free block. */ \ + if (!ptr[0xa]) continue; \ ptr+= 0xa; \ if (pfile[0] == 0) { \ strncpy(dir->name, ptr, sizeof(dir->name)); \ dir->name[sizeof(dir->name) - 1] = '\0'; \ } else for (i=0; i<20; i++) { \ if (pfile[i] == ptr[i]) { \ - dir->name[i] = ptr[i]; \ - if (ptr[i] == 0) break; else continue; } \ + dir->name[i] = ptr[i]; continue; } \ if (pfile[i] == '?') { \ dir->name[i] = ptr[i]; continue; } \ if (pfile[i] == '*') { \ @@ -1906,7 +1935,7 @@ int nfile; match = 0; break; \ } \ SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \ - if (match == 0) continue; \ + if (match == 0) { continue; } \ dir->size = 8192; \ v0 = _dir; \ break; \ |