int main(int argc, char **argv)
{
const char *file = nullptr;
uint32_t show = 0;
for (int a = 1; a<argc; a++) {
if (argv[a][0]=='-') {
strref arg = argv[a]+1;
if (arg.same_str("sections"))
show = show | SHOW_SECTIONS;
else if (arg.same_str("relocs"))
show = show | SHOW_RELOCS;
else if (arg.same_str("labels"))
show = show | SHOW_LABELS;
else if (arg.same_str("map"))
show = show | SHOW_MAP_SYMBOLS;
else if (arg.same_str("late_eval"))
show = show | SHOW_LATE_EVAL;
else if (arg.same_str("code"))
show = show | SHOW_CODE_RANGE;
else if (arg.same_str("all"))
show = SHOW_SECTIONS | SHOW_RELOCS | SHOW_LABELS | SHOW_MAP_SYMBOLS | SHOW_LATE_EVAL | SHOW_CODE_RANGE;
} else if (!file)
file = argv[a];
}
if (!file) {
printf("Usage:\ndump_x65 filename [-sections] [-relocs] [-labels] [-map] [-late_eval] [-code]\n");
return 0;
}
if (argc>1) {
ReadObjectFile(file, show ? show : SHOW_DEFAULT);
}
}
int main(int argc, char *argv[])
{
MachineState *ptrMachine = &theMachine;
ControlSignals *ptrControls = &theControls;
DatapathSignals *ptrSignals = &theSignals;
int i;
FILE *outFile;
FILE *outImg;
unsigned short int pc;
unsigned short int insn;
unsigned short int arr[2];
char ppm[128];
unsigned char rgb[3];
int ret;
unsigned int rn = 0;
if (argc <= 2)
{
printf("Error: Not enough arguments. Requires trace output_filename obj_file... (at least 1 obj file)\n");
return 1;
}
//reset the machine
Reset (ptrMachine);
//argv[0] = trace, ignore
//argv[1] = output filename
outFile = fopen(argv[1], "wb");
outImg = fopen("image.ppm", "wb");
if (outFile == NULL)
{
printf("Error: Failed to create trace file %s. Execution aborted\n", argv[1]);
fclose(outImg);
return 1;
}
if (outImg == NULL)
{
printf("Error: Failed to create PPM image file image.ppm. Execution aborted.\n");
fclose(outFile);
return 1;
}
//rest are .obj files
for (i = 2; i < argc; i++)
{
ret = ReadObjectFile(argv[i], ptrMachine);
if(ret != 0) {
return 1;
}
}
while (ptrMachine->PC != 0x80FF)
{
pc = ptrMachine->PC;
insn = ptrMachine->memory[pc];
arr[0] = pc;
arr[1] = insn;
//fwrite(arr, sizeof(short int), 2, outFile);
++rn;
printf("%d: Instruction -- ", rn);
ret = DecodeCurrentInstruction(insn, ptrControls);
if (ret == 1) {
printf("Error: Invalid Instruction encountered. Execution Aborted.\n");
break;
}
ret = SimulateDatapath(ptrControls, ptrMachine, ptrSignals);
if (ret == 1)
{
printf("Error: errors encountered while simulating datapth. Execuution Aborted.\n");
break;
}
ret = UpdateMachineState(ptrControls, ptrMachine, ptrSignals);
switch (ret)
{
case 1 :
printf("Error: Attempting to execute a data section address as code\n");
break;
case 2 :
printf("Error: Attempting to read or write a code section address as data\n");
break;
case 3 :
printf("Error: Attempting to access an address or instruction in the OS section of memory when the processor is in user mode\n");
break;
}
if (ret != 0)
{
printf("Error: Update Machine error. Execution Aborted.\n");
fclose(outImg);
fclose(outFile);
return 1;
}
else
{
// write PC and Instruction to trace file
fwrite(arr, sizeof(short int), 2, outFile);
}
if(ptrMachine->PC == 0x80FF)
{
printf("PC = 0x80FF, Entering last instruction. Execution Completed.\n");
pc = ptrMachine->PC;
insn = 0xC907; // TRAP Halt
arr[0] = pc;
arr[1] = insn;
fwrite(arr, sizeof(short int), 2, outFile);
break;
}
}
// PPM Header: P6 Width Height Max Colors
strcpy(ppm, "P6 128 124 32\n");
fwrite(ppm, 1, strlen(ppm), outImg);
//output of video memory
for (i = 0; i < (VIDEO_ROWS * VIDEO_COLS); i++)
{
rgb[0] = INSN_14_10(ptrMachine->memory[0xC000 + i]);
rgb[1] = INSN_9_5(ptrMachine->memory[0xC000 + i]);
rgb[2] = INSN_4_0(ptrMachine->memory[0xC000 + i]);
fwrite(rgb, sizeof(unsigned char), 3, outImg);
}
fclose(outImg);
fclose(outFile);
printf("Summary: %d Instruction executed. Trace File: %s created. PPM Image File: image.ppm created.\n", rn, argv[1]);
return 0;
}
