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libgambatte: hang on invalid opcode

This commit is contained in:
MrWint 2019-05-26 19:19:39 +02:00
parent ae98698758
commit 9d266ce281
2 changed files with 52 additions and 16 deletions
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68
libgambatte/src/cpu.cpp
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@ -1701,9 +1701,14 @@ void CPU::process(unsigned long const cycles) {
break;
case 0xD3: /*doesn't exist*/
skip_ = true;
case 0xD3: // not specified. should freeze.
mem_.di();
cycleCounter = mem_.stop(cycleCounter);
if (cycleCounter < mem_.nextEventTime()) {
unsigned long cycles = mem_.nextEventTime() - cycleCounter;
cycleCounter += cycles + (-cycles & 3);
}
break;
// call nc,nn (24;12 cycles):
@ -1770,9 +1775,14 @@ void CPU::process(unsigned long const cycles) {
break;
case 0xDB: /*doesn't exist*/
skip_ = true;
case 0xDB: // not specified. should freeze.
mem_.di();
cycleCounter = mem_.stop(cycleCounter);
if (cycleCounter < mem_.nextEventTime()) {
unsigned long cycles = mem_.nextEventTime() - cycleCounter;
cycleCounter += cycles + (-cycles & 3);
}
break;
// call z,nn (24;12 cycles):
@ -1787,10 +1797,14 @@ void CPU::process(unsigned long const cycles) {
}
break;
case 0xDD: /*doesn't exist*/
skip_ = true;
case 0xDD: // not specified. should freeze.
mem_.di();
cycleCounter = mem_.stop(cycleCounter);
if (cycleCounter < mem_.nextEventTime()) {
unsigned long cycles = mem_.nextEventTime() - cycleCounter;
cycleCounter += cycles + (-cycles & 3);
}
break;
case 0xDE:
@ -1826,10 +1840,16 @@ void CPU::process(unsigned long const cycles) {
case 0xE2:
FF_WRITE(c, a);
break;
case 0xE3:
case 0xE4: /*doesn't exist*/
skip_ = true;
case 0xE3:
case 0xE4: // not specified. should freeze.
mem_.di();
cycleCounter = mem_.stop(cycleCounter);
if (cycleCounter < mem_.nextEventTime()) {
unsigned long cycles = mem_.nextEventTime() - cycleCounter;
cycleCounter += cycles + (-cycles & 3);
}
break;
case 0xE5:
@ -1874,11 +1894,17 @@ void CPU::process(unsigned long const cycles) {
}
break;
case 0xEB:
case 0xEC:
case 0xED: /*doesn't exist*/
skip_ = true;
case 0xED: // not specified. should freeze.
mem_.di();
cycleCounter = mem_.stop(cycleCounter);
if (cycleCounter < mem_.nextEventTime()) {
unsigned long cycles = mem_.nextEventTime() - cycleCounter;
cycleCounter += cycles + (-cycles & 3);
}
break;
case 0xEE:
@ -1927,9 +1953,14 @@ void CPU::process(unsigned long const cycles) {
mem_.di();
break;
case 0xF4: /*doesn't exist*/
skip_ = true;
case 0xF4: // not specified. should freeze.
mem_.di();
cycleCounter = mem_.stop(cycleCounter);
if (cycleCounter < mem_.nextEventTime()) {
unsigned long cycles = mem_.nextEventTime() - cycleCounter;
cycleCounter += cycles + (-cycles & 3);
}
break;
case 0xF5:
@ -1994,9 +2025,14 @@ void CPU::process(unsigned long const cycles) {
break;
case 0xFC:
case 0xFD: /*doesn't exist*/
skip_ = true;
case 0xFD: // not specified. should freeze
mem_.di();
cycleCounter = mem_.stop(cycleCounter);
if (cycleCounter < mem_.nextEventTime()) {
unsigned long cycles = mem_.nextEventTime() - cycleCounter;
cycleCounter += cycles + (-cycles & 3);
}
break;
case 0xFE:
{

BIN
output/dll/libgambatte.dll
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