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SNES: detect Star Ocean 96Mbit ROM.

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This commit is contained in:
sorgelig
2019-03-04 18:56:01 +08:00
parent 02f0a802d5
commit 7e2bc86883
1 changed files with 13 additions and 12 deletions
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25
support/snes/snes.cpp
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@@ -149,6 +149,18 @@ uint8_t* snes_get_header(fileTYPE *f)
uint8_t ramsz = buf[addr + RamSize];
if (ramsz >= 0x08) ramsz = 0;
//re-calc rom size
uint8_t romsz = 15;
size--;
if (!(size & 0xFF000000))
{
while (!(size & 0x1000000))
{
romsz--;
size <<= 1;
}
}
//Rom type: 0-Low, 1-High, 2-ExHigh
hdr[1] = (addr == 0x00ffc0) ? 1 : (addr == 0x40ffc0) ? 2 : 0;
@@ -194,7 +206,7 @@ uint8_t* snes_get_header(fileTYPE *f)
//SDD1 5
if (buf[addr + Mapper] == 0x32 && (buf[addr + RomType] == 0x43 || buf[addr + RomType] == 0x45))
{
hdr[1] |= 0x50;
if (romsz < 14) hdr[1] |= 0x50; // except Star Ocean un-SDD1
}
//SA1 6
@@ -222,17 +234,6 @@ uint8_t* snes_get_header(fileTYPE *f)
hdr[3] |= 1;
}
//re-calc rom size
uint8_t romsz = 15;
size--;
if (!(size & 0xFF000000))
{
while (!(size & 0x1000000))
{
romsz--;
size <<= 1;
}
}
hdr[0] = (ramsz << 4) | romsz;
printf("Size from header: 0x%X, calculated size: 0x%X\n", buf[addr + RomSize], romsz);
}