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C64: support GCR mode.

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This commit is contained in:
sorgelig
2021-06-16 05:42:44 +08:00
parent b4f581f5ef
commit a20997df31
3 changed files with 372 additions and 1 deletions
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15
user_io.cpp
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@@ -1508,11 +1508,17 @@ int user_io_file_mount(const char *name, unsigned char index, char pre)
{
writable = 0;
ret = c64_openT64(name, sd_image + index);
if (ret) ret = c64_openGCR(name, sd_image + index, index);
}
else
{
writable = FileCanWrite(name);
ret = FileOpenEx(&sd_image[index], name, writable ? (O_RDWR | O_SYNC) : O_RDONLY);
if (ret && is_c64() && len > 4 && (!strcasecmp(name + len - 4, ".d64") || !strcasecmp(name + len - 4, ".g64")))
{
ret = c64_openGCR(name, sd_image + index, index);
if(!ret) FileClose(&sd_image[index]);
}
}
}
@@ -1524,6 +1530,7 @@ int user_io_file_mount(const char *name, unsigned char index, char pre)
else
{
FileClose(&sd_image[index]);
c64_closeGCR(index);
}
buffer_lba[index] = -1;
@@ -2662,7 +2669,13 @@ void user_io_poll()
}
DisableIO();
if (op == 2)
if ((blksz == 32) && is_c64())
{
if (op == 2) c64_writeGCR(disk, lba);
else if (op & 1) c64_readGCR(disk, lba);
else break;
}
else if (op == 2)
{
//printf("SD WR %d on %d\n", lba, disk);