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Got the start of encoding opcodes.

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glm94
2022-08-26 18:27:41 +00:00
parent 0d060248cb
commit eb5e2c506e
5 changed files with 66 additions and 19 deletions
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src/parser.c
+32 -7
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@@ -74,11 +74,11 @@ void ParseTokens(List* tokens) {
PrintSymbols();
DestroyList(SymbolsTable);
// for(int i = 0; i < 256; i++) {
// if (i != 0 && i % 80 == 0) printf("\n");
// printf("%02X ", Memory[i] & 0xFF);
// }
// printf("\n");
for(int i = 0; i < 32; i++) {
if (i != 0 && i % 3 == 0) printf("\n");
printf("%02X ", Memory[i] & 0xFF);
}
printf("\n");
// printf("Program Counter: %d\n", ProgramCounter);
//printf("Heap Top: %#06X\n", HeapTop);
}
@@ -132,6 +132,9 @@ void HandleAssemblerDirective(void) {
}
}
//REG XXX0 0XXX
//Constant XXX0 1XXX
//Address XXX1 0XXX
void HandleOperation(void) {
const Instruction* inst = GetOpcodeDetails(PeekToken()->type);
@@ -141,6 +144,8 @@ void HandleOperation(void) {
printf("[%#05X] %s ", ProgramCounter, inst->lexeme);
Memory[ProgramCounter] |= GetInstructionMask(inst->op, inst->parameter_one);
ProgramCounter++;
if (inst->parameter_one == None) {
@@ -153,6 +158,7 @@ void HandleOperation(void) {
if (inst->parameter_one & Reg) {
//Encode the register number here.
Memory[ProgramCounter - 1] |= PeekToken()->type - 29;
printf("%s ", PeekToken()->lexeme);
}
else if (inst->parameter_one & Address || inst->parameter_one & Constant) {
@@ -164,9 +170,16 @@ void HandleOperation(void) {
exit(1);
}
Memory[ProgramCounter - 1] |= 0x10;//0b00010000;
Memory[ProgramCounter] = 2 >> symbol->address & 0xFF;
Memory[ProgramCounter + 1] = symbol->address & 0xFF;
printf("[%s@%#04X] ", PeekToken()->lexeme, symbol->address);
}
else if (PeekToken()->type == NUMBER) printf("%s ", PeekToken()->lexeme);
else if (PeekToken()->type == NUMBER) {
Memory[ProgramCounter - 1] |= 0x08; //0b00001000;
printf("%s ", PeekToken()->lexeme);
}
ProgramCounter += 2;
}
@@ -198,9 +211,21 @@ void HandleOperation(void) {
exit(1);
}
Memory[ProgramCounter - 1] |= 0x10;//0b00010000;
Memory[ProgramCounter] = 2 >> symbol->address & 0xFF;
Memory[ProgramCounter + 1] = symbol->address & 0xFF;
printf("[%s@%#04X] ", PeekToken()->lexeme, symbol->address);
}
else if (PeekToken()->type == NUMBER) printf("%s ", PeekToken()->lexeme);
else if (PeekToken()->type == NUMBER) {
Memory[ProgramCounter - 1] |= 0x08; //0b00001000;
int* value = PeekToken()->value;
Memory[ProgramCounter] = 2 >> *value &0xFF;
Memory[ProgramCounter + 1] = *value &0xFF;
printf("%s ", PeekToken()->lexeme);
}
ProgramCounter += 2;
}