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fix for #68 (mapper 227 chr write protection emulation)

This commit is contained in:
g0me3 2019-07-22 13:32:42 +03:00
parent 57d0b92a0f
commit a3d4db6b1a
1 changed files with 2 additions and 0 deletions
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2
src/boards/addrlatch.cpp
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@ -354,6 +354,7 @@ static void M227Sync(void) {
uint32 L = (latche >> 9) & 1;
if ((latche >> 7) & 1) {
SetupCartCHRMapping(0, CHRptr[0], 0x2000, 0); // hacky hacky write protection for CHR
if (S) {
setprg32(0x8000, p >> 1);
} else {
@ -361,6 +362,7 @@ static void M227Sync(void) {
setprg16(0xC000, p);
}
} else {
SetupCartCHRMapping(0, CHRptr[0], 0x2000, 1); // hacky hacky write protection for CHR
if (S) {
if (L) {
setprg16(0x8000, p & 0x3E);