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pcecd: send BIOS region to FPGA.

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This commit is contained in:
sorgelig
2020-05-29 02:02:35 +08:00
parent 5d80055955
commit 1d6e1ea1c1
1 changed files with 6 additions and 5 deletions
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11
support/pcecd/pcecd.cpp
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@@ -14,6 +14,7 @@
static int /*loaded = 0, unloaded = 0,*/ need_reset=0;
static uint8_t has_command = 0;
static uint8_t us_cart = 0;
void pcecd_poll()
{
@@ -40,7 +41,7 @@ void pcecd_poll()
spi_uio_cmd_cont(UIO_CD_SET);
spi_w(s);
spi_w(0);
spi_w(0 | (us_cart << 1));
DisableIO();
pcecdd.has_status = 0;
@@ -50,7 +51,7 @@ void pcecd_poll()
else if (pcecdd.data_req) {
spi_uio_cmd_cont(UIO_CD_SET);
spi_w(0);
spi_w(1);
spi_w(1 | (us_cart << 1));
DisableIO();
pcecdd.data_req = false;
@@ -153,7 +154,7 @@ static int load_bios(char *biosname, const char *cuename)
fileTYPE f;
if (!FileOpen(&f, biosname)) return 0;
int swap = 0;
us_cart = 0;
uint32_t start = size & 0x3FF;
if (size >= 262144)
@@ -163,7 +164,7 @@ static int load_bios(char *biosname, const char *cuename)
FileSeek(&f, start + size - 26, SEEK_SET);
memset(buf, 0, sizeof(buf));
FileReadAdv(&f, buf, 26);
swap = !memcmp(buf, us_sig, sizeof(us_sig));
us_cart = !memcmp(buf, us_sig, sizeof(us_sig)) ? 1 : 0;
}
user_io_set_index(0);
@@ -176,7 +177,7 @@ static int load_bios(char *biosname, const char *cuename)
size -= chunk;
FileReadAdv(&f, buf, chunk);
if (swap)
if (us_cart)
{
for (uint32_t i = 0; i < chunk; i++)
{