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3rdParty: add small64 signature to open_rom()

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Rosalie Wanders
2025-04-30 16:57:37 +02:00
parent 0813a6e3ea
commit 5696153e34
1 changed files with 6 additions and 1 deletions
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Source/3rdParty/mupen64plus-core/src/main/rom.c
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+6 -1
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@@ -76,12 +76,16 @@ static const uint8_t Z64_SIGNATURE[4] = { 0x80, 0x37, 0x12, 0x40 };
static const uint8_t V64_SIGNATURE[4] = { 0x37, 0x80, 0x40, 0x12 };
static const uint8_t N64_SIGNATURE[4] = { 0x40, 0x12, 0x37, 0x80 };
static const uint8_t ALT_Z64_SIGNATURE[4] = { 0x31, 0x37, 0x12, 0x40 };
/* Tests if a file is a valid N64 rom by checking the first 4 bytes and size */
static int is_valid_rom(const unsigned char *buffer, unsigned int size)
{
printf("rom signature: 0x%02X, 0x%02X, 0x%02X, 0x%02X\n", buffer[0], buffer[1], buffer[2], buffer[3]);
if ((memcmp(buffer, Z64_SIGNATURE, sizeof(Z64_SIGNATURE)) == 0)
|| (memcmp(buffer, V64_SIGNATURE, sizeof(V64_SIGNATURE)) == 0 && size % 2 == 0)
|| (memcmp(buffer, N64_SIGNATURE, sizeof(N64_SIGNATURE)) == 0 && size % 4 == 0))
|| (memcmp(buffer, N64_SIGNATURE, sizeof(N64_SIGNATURE)) == 0 && size % 4 == 0)
|| (memcmp(buffer, ALT_Z64_SIGNATURE, sizeof(ALT_Z64_SIGNATURE)) == 0))
return 1;
else
return 0;
@@ -149,6 +153,7 @@ m64p_error open_rom(const unsigned char* romimage, unsigned int size)
if (romimage == NULL || !is_valid_rom(romimage, size))
{
DebugMessage(M64MSG_ERROR, "open_rom(): not a valid ROM image");
printf("fail\n");
return M64ERR_INPUT_INVALID;
}