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add hirom support

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This commit is contained in:
David Voswinkel 2009-07-08 20:09:34 +02:00
parent ef14c4dcd8
commit d7b82e2503
1 changed files with 30 additions and 7 deletions
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37
tools/ucon64/2.0/src/backup/snesram.c
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@ -61,10 +61,10 @@ const st_getopt2_t snesram_usage[] =
#ifdef USE_USB
#define READ_BUFFER_SIZE (1024 * 32)
#define READ_BUFFER_SIZE 8192
#define SEND_BUFFER_SIZE 128
#define BANK_SIZE (1<<15)
#define BANK_SIZE_SHIFT 15
#define SNES_HIROM_SHIFT 16
#define SNES_LOROM_SHIFT 15
int
snesram_write_rom (const char *filename)
@ -83,7 +83,12 @@ snesram_write_rom (const char *filename)
uint16_t step = 0;
uint8_t bank = 0;
uint8_t bank_cnt = 0;
uint16_t bank_shift;
uint32_t bank_size;
uint32_t hirom;
uint8_t byte = 0;
usb_init();
vid = rawVid[1] * 256 + rawVid[0];
pid = rawPid[1] * 256 + rawPid[0];
@ -107,13 +112,31 @@ snesram_write_rom (const char *filename)
exit (1);
}
if (UCON64_ISSET (ucon64.snes_hirom)) {
hirom = ucon64.snes_hirom ? 1 : 0;
} else {
fseek (file, 0x00ffd5, SEEK_SET);
fread(&byte, 1, 1, file);
hirom = ((byte & 1 && byte != 0x23) || byte == 0x3a) ? 1 : 0; // & 1 => 0x21, 0x31, 0x35
}
printf("Hirom: %i\n",hirom);
if (hirom) {
bank_shift = SNES_HIROM_SHIFT;
bank_size = 1 << SNES_HIROM_SHIFT;
} else {
bank_shift = SNES_LOROM_SHIFT;
bank_size = 1 << SNES_LOROM_SHIFT;
}
fseek (file, 0, SEEK_END);
size = ftell (file);
fseek (file, SMC_HEADER_LEN, SEEK_SET);
size -= SMC_HEADER_LEN;
bank_cnt = size / BANK_SIZE;
bank_cnt = size / bank_size;
printf ("Send: %d Bytes (%.4f Mb)\n", size, (float) size / MBIT);
printf ("Send: %d Bytes (%.4f Mb) Hirom: %s, Banks: %i\n", size, (float) size / MBIT, hirom ? "Yes" : "No", bank_cnt);
bytessend = 0;
printf ("Press q to abort\n\n");
starttime = time (NULL);
@ -121,7 +144,7 @@ snesram_write_rom (const char *filename)
cnt = usb_control_msg(handle,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_OUT,
USB_BULK_UPLOAD_INIT, BANK_SIZE_SHIFT , bank_cnt, NULL, 0, 5000);
USB_BULK_UPLOAD_INIT, bank_shift , bank_cnt, NULL, 0, 5000);
while ((bytesread = fread(read_buffer, READ_BUFFER_SIZE, 1, file)) > 0) {
@ -153,7 +176,7 @@ snesram_write_rom (const char *filename)
ucon64_gauge (starttime, bytessend, size);
addr += SEND_BUFFER_SIZE;
if ( addr % 0x8000 == 0) {
if ( addr % bank_size == 0) {
bank++;
}
}