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Use 4K per block transfer for file loading. SNES: skip 512b header if present.

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This commit is contained in:
sorgelig
2018-12-13 20:01:12 +08:00
parent 05c2478d7c
commit 88e2176a4d
1 changed files with 10 additions and 4 deletions
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14
user_io.cpp
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@@ -1213,7 +1213,7 @@ static void send_pcolchr(const char* name, unsigned char index, int type)
int user_io_file_tx(const char* name, unsigned char index, char opensave, char mute, char composite)
{
fileTYPE f = { 0 };
static uint8_t buf[1024];
static uint8_t buf[4096];
if (!FileOpen(&f, name, mute)) return 0;
@@ -1261,7 +1261,7 @@ int user_io_file_tx(const char* name, unsigned char index, char opensave, char m
}
else
{
if (is_snes_core())
if (is_snes_core() && bytes2send)
{
printf("Load SNES ROM.\n");
uint8_t* buf = snes_get_header(&f);
@@ -1270,15 +1270,21 @@ int user_io_file_tx(const char* name, unsigned char index, char opensave, char m
spi8(UIO_FILE_TX_DAT);
spi_write(buf, 512, fio_size);
DisableFpga();
if (bytes2send & 512)
{
bytes2send -= 512;
FileReadSec(&f, buf);
}
}
while (bytes2send)
{
printf(".");
uint16_t chunk = (bytes2send > 512) ? 512 : bytes2send;
uint16_t chunk = (bytes2send > sizeof(buf)) ? sizeof(buf) : bytes2send;
FileReadSec(&f, buf);
FileReadAdv(&f, buf, chunk);
EnableFpga();
spi8(UIO_FILE_TX_DAT);