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snes: fix patch of incorrect BS header values

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* pcecd: read 256 sectors when length is 0 (Kabuki Itouryodan).

* pcecd: send status immediately for commands with instant execution (Bomberman: Panic Bomber), some cleanup

* snes: add BSX support

* snes: add SPC loading

* snes: fix patch of incorrect BS header values
This commit is contained in:
Sergey Dvodnenko
2020-10-18 22:09:24 +03:00
committed by GitHub
parent 0be5c27205
commit 07e0b2437e
1 changed files with 11 additions and 2 deletions
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13
support/snes/snes.cpp
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@@ -280,14 +280,23 @@ void snes_patch_bs_header(fileTYPE *f, uint8_t *buf)
{
if ((f->offset == 0x008000 && (buf[0xFD8] == 0x20 || buf[0xFD8] == 0x30)) ||
(f->offset == 0x010000 && (buf[0xFD8] == 0x21 || buf[0xFD8] == 0x31))) {
if (buf[0xFD0] == 0xFF && buf[0xFD1] == 0xFF && buf[0xFD2] == 0xFF && buf[0xFD3] == 0xFF) {
if (buf[0xFD0] == 0xF0 || (buf[0xFD1] == 0xFF && buf[0xFD2] == 0xFF && buf[0xFD3] == 0xFF)) {
printf("SNES: Patch bad BS header: offset %04X, bad value %02X %02X %02X %02X\n", 0x7FD0 | (f->offset == 0x008000 ? 0x0000 : 0x8000), buf[0xFD0], buf[0xFD1], buf[0xFD2], buf[0xFD3]);
buf[0xFD3] = 0x00;
buf[0xFD2] = 0x00;
buf[0xFD1] = 0x00;
buf[0xFD0] = f->size <= 256 * 1024 ? 0x03 :
f->size <= 512 * 1024 ? 0x0F :
0xFF;
printf("SNES: Patch bad BS header: offset %06X, size %d\n", (int)f->offset, (int)f->size);
}
if (buf[0xFD5] >= 0x80) {
printf("SNES: Patch bad BS header: offset %04X, bad value %02X %02X\n", 0x7FD4 | (f->offset == 0x008000 ? 0x0000 : 0x8000), buf[0xFD4], buf[0xFD5]);
buf[0xFD5] = 0xFF;
buf[0xFD4] = 0xFF;
}
if (buf[0xFDA] != 0x33) {
printf("SNES: Patch bad BS header: offset %04X, bad value %02X\n", 0x7FDA | (f->offset == 0x008000 ? 0x0000 : 0x8000), buf[0xFDA]);
buf[0xFDA] = 0x33;
}
}
}