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Add mapper 256 submapper 12.

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This commit is contained in:
NewRisingSun
2025-04-25 01:01:56 +02:00
committed by LibretroAdmin
parent 00c0ff9122
commit cbc5270746
2 changed files with 12 additions and 7 deletions
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10
src/boards/onebus.c
View File

@@ -119,7 +119,9 @@ static void CSync(int AND, int OR) {
static void Sync256(void) {
PSync(0x0FFF, 0x000);
CSync(0x7FFF, 0x000);
encryptOpcodes =submapper ==14 && cpu410x[0x1C] &0x40? 67: 0;
encryptOpcodes =0;
if (submapper ==12 && cpu410x[0x1C] &0x40) encryptOpcodes =12;
if (submapper ==14 && cpu410x[0x1C] &0x40) encryptOpcodes =14;
}
static const uint8 cpuMangles[16][4] = {
@@ -135,7 +137,7 @@ static const uint8 cpuMangles[16][4] = {
{ 0, 1, 2, 3 }, /* Submapper 9: unused so far */
{ 0, 1, 2, 3 }, /* Submapper A: unused so far */
{ 0, 1, 2, 3 }, /* Submapper B: unused so far */
{ 0, 1, 2, 3 }, /* Submapper C: unused so far */
{ 0, 1, 2, 3 }, /* Submapper C: Cheertone (CPU opcode encryption only) */
{ 0, 1, 2, 3 }, /* Submapper D: Cube Tech (CPU opcode encryption only) */
{ 0, 1, 2, 3 }, /* Submapper E: Karaoto (CPU opcode encryption only) */
{ 0, 1, 2, 3 } /* Submapper F: Jungletac (CPU opcode encryption only) */
@@ -324,7 +326,7 @@ static void UNLOneBusPower(void) {
memset(ppu201x, 0x00, sizeof(ppu201x));
memset(apu40xx, 0x00, sizeof(apu40xx));
cpu410x[0x0F] =0xFF;
cpu410x[0x1C] =submapper ==14? 0x40: 0x00;
cpu410x[0x1C] =submapper ==12 || submapper ==14? 0x40: 0x00;
SetupCartCHRMapping(0, PRGptr[0], PRGsize[0], 0);
@@ -356,7 +358,7 @@ static void UNLOneBusReset(void) {
memset(ppu201x, 0x00, sizeof(ppu201x));
memset(apu40xx, 0x00, sizeof(apu40xx));
cpu410x[0x0F] =0xFF;
cpu410x[0x1C] =submapper ==14? 0x40: 0x00;
cpu410x[0x1C] =submapper ==12 || submapper ==14? 0x40: 0x00;
reg4242 =0;
dipswitch ^=8;

9
src/x6502.c
View File

@@ -492,7 +492,8 @@ static void X6502_RunDebug(int32 cycles) {
X.preexec = 1;
b1 = RdMem(_PC);
_PC++;
if (encryptOpcodes ==67) b1 =b1 &0x3F | b1 >>1 &0x40 | b1 <<1 &0x80;
if (encryptOpcodes ==12) b1 =b1 &0x39 | b1 >>1 &0x42 | b1 <<1 &0x84;
if (encryptOpcodes ==14) b1 =b1 &0x3F | b1 >>1 &0x40 | b1 <<1 &0x80;
switch (b1) {
#include "ops.h"
}
@@ -522,7 +523,8 @@ static void X6502_RunDebug(int32 cycles) {
FCEU_SoundCPUHook(temp);
_PC++;
if (encryptOpcodes ==67) b1 =b1 &0x3F | b1 >>1 &0x40 | b1 <<1 &0x80;
if (encryptOpcodes ==12) b1 =b1 &0x39 | b1 >>1 &0x42 | b1 <<1 &0x84;
if (encryptOpcodes ==14) b1 =b1 &0x3F | b1 >>1 &0x40 | b1 <<1 &0x80;
switch (b1) {
#include "ops.h"
}
@@ -620,7 +622,8 @@ void X6502_Run(int32 cycles)
FCEU_SoundCPUHook(temp);
X.PC = pbackus;
_PC++;
if (encryptOpcodes ==67) b1 =b1 &0x3F | b1 >>1 &0x40 | b1 <<1 &0x80;
if (encryptOpcodes ==12) b1 =b1 &0x39 | b1 >>1 &0x42 | b1 <<1 &0x84;
if (encryptOpcodes ==14) b1 =b1 &0x3F | b1 >>1 &0x40 | b1 <<1 &0x80;
switch (b1) {
#include "ops.h"
}