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Add command line switch to disable Gayle emulation

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This commit is contained in:
beean
2020-11-23 10:55:15 +01:00
parent e35f5657b2
commit ee9ee48cd4
1 changed files with 35 additions and 15 deletions
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50
emulator.c
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@@ -76,6 +76,7 @@
int mem_fd;
int mem_fd_gpclk;
int gayle_emulation_enabled = 1;
void *gpio_map;
void *gpclk_map;
@@ -144,10 +145,17 @@ void *iplThread(void *args) {
}
}
int main() {
int main(int argc, char *argv[]) {
int g;
const struct sched_param priority = {99};
// Some command line switch stuffles
for (g = 1; g < argc; g++) {
if (strcmp(argv[g], "--disable-gayle") == 0) {
gayle_emulation_enabled = 0;
}
}
sched_setscheduler(0, SCHED_FIFO, &priority);
mlockall(MCL_CURRENT); // lock in memory to keep us from paging out
@@ -316,8 +324,10 @@ unsigned int m68k_read_memory_8(unsigned int address) {
}
}
if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
return readGayleB(address);
if (gayle_emulation_enabled) {
if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
return readGayleB(address);
}
}
if (address < 0xffffff) {
@@ -338,8 +348,10 @@ unsigned int m68k_read_memory_16(unsigned int address) {
}
}
if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
return readGayle(address);
if (gayle_emulation_enabled) {
if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
return readGayle(address);
}
}
if (address < 0xffffff) {
@@ -360,8 +372,10 @@ unsigned int m68k_read_memory_32(unsigned int address) {
}
}
if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
return readGayleL(address);
if (gayle_emulation_enabled) {
if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
return readGayleL(address);
}
}
if (address < 0xffffff) {
@@ -379,9 +393,11 @@ void m68k_write_memory_8(unsigned int address, unsigned int value) {
return;
}
if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
writeGayleB(address, value);
return;
if (gayle_emulation_enabled) {
if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
writeGayleB(address, value);
return;
}
}
if (address == 0xbfe001) {
@@ -403,9 +419,11 @@ void m68k_write_memory_16(unsigned int address, unsigned int value) {
return;
}
if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
writeGayle(address, value);
return;
if (gayle_emulation_enabled) {
if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
writeGayle(address, value);
return;
}
}
if (address < 0xffffff) {
@@ -421,8 +439,10 @@ void m68k_write_memory_32(unsigned int address, unsigned int value) {
return;
}
if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
writeGayleL(address, value);
if (gayle_emulation_enabled) {
if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
writeGayleL(address, value);
}
}
if (address < 0xffffff) {