154 lines
3.1 KiB
C
Executable File
154 lines
3.1 KiB
C
Executable File
#include <stdlib.h>
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#include <stdio.h>
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#include "stack.h"
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#include "asm.h"
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#include "debug.h"
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void printState(asm_t *state);
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void pushOperation(char* rom, int *pos, opcode_t *opcode);
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void writeProgram(asm_t *state);
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int main(int argc, char** argv) {
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asm_t state;
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char ram[65536];
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char rom[65536];
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state.ramSize=65536;
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state.romSize=65536;
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state.ram=ram;
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state.rom=rom;
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initAsm(&state);
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writeProgram(&state);
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run(&state, 1000);
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printState(&state);
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}
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void printState(asm_t *state) {
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printf("--asm state--\n");
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printf("PC: 0x%x; romSize: %d\n", state->registers[0].i, state->romSize);
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printf("IntHandler: 0x%x\n", state->registers[1].i);
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printf("Stack size: %d\n", state->stack.top);
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for(int i=0; i<state->stack.top; i++) {
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printf("\tStack element %d: %d or %lf\n", i, state->stack.elements[i].i, state->stack.elements[i].d);
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}
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printf("Registers:\n");
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for(int i=2; i<256; i++) {
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if(state->registers[i].i==0) continue;
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printf("\tRegister %d: %d or %lf\n", i, state->registers[i].i, state->registers[i].d);
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}
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printf("--end of asm state--\n");
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}
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void pushOperation(char* rom, int *pos, opcode_t *opcode) {
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debug("Adding opcode %d with %d arguments at offset 0x%x\n", opcode->op, opcode->nArgs, *pos);
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rom[*pos]=opcode->byte0;
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(*pos)++;
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if(opcode->nArgs>0) {
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rom[*pos]=opcode->byte1;
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(*pos)++;
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if(opcode->nArgs>1) {
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rom[*pos]=opcode->byte2;
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(*pos)++;
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}
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}
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}
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void writeProgram(asm_t *state) {
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int pos=0;
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opcode_t opcode;
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//push 0i
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opcode.nArgs=3;
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opcode.op=OP_push;
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opcode.immediate=0;
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pushOperation(state->rom, &pos, &opcode);
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//store #2
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opcode.nArgs=1;
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opcode.op=OP_store;
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opcode.arg0_1=2;
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pushOperation(state->rom, &pos, &opcode);
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//push 1i
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opcode.nArgs=3;
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opcode.op=OP_push;
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opcode.immediate=1;
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pushOperation(state->rom, &pos, &opcode);
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//store #3
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opcode.nArgs=1;
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opcode.op=OP_store;
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opcode.arg0_1=3;
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pushOperation(state->rom, &pos, &opcode);
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//.loop:
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int loop=pos;
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//add_i #2 #3
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opcode.nArgs=2;
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opcode.op=OP_add_i;
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opcode.arg0_2=2;
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opcode.arg1_2=3;
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pushOperation(state->rom, &pos, &opcode);
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//store #2
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opcode.nArgs=1;
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opcode.op=OP_store;
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opcode.arg0_1=2;
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pushOperation(state->rom, &pos, &opcode);
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//add_i #2 #3
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opcode.nArgs=2;
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opcode.op=OP_add_i;
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opcode.arg0_2=2;
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opcode.arg1_2=3;
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pushOperation(state->rom, &pos, &opcode);
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//store #3
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opcode.nArgs=1;
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opcode.op=OP_store;
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opcode.arg0_1=3;
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pushOperation(state->rom, &pos, &opcode);
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//high 0x1000i
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opcode.nArgs=3;
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opcode.op=OP_high;
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opcode.immediate=0x1000;
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pushOperation(state->rom, &pos, &opcode);
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//push #3
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opcode.nArgs=1;
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opcode.op=OP_push;
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opcode.arg0_1=3;
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pushOperation(state->rom, &pos, &opcode);
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//jle_i loop
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opcode.nArgs=3;
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opcode.op=OP_jle_i;
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opcode.immediate=loop;
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pushOperation(state->rom, &pos, &opcode);
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//i2d #2
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opcode.nArgs=1;
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opcode.op=OP_i2d;
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opcode.arg0_1=2;
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pushOperation(state->rom, &pos, &opcode);
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//i2d #3
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opcode.nArgs=1;
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opcode.op=OP_i2d;
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opcode.arg0_1=3;
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pushOperation(state->rom, &pos, &opcode);
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//div_d
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opcode.nArgs=0;
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opcode.op=OP_div_d;
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pushOperation(state->rom, &pos, &opcode);
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//halt
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opcode.nArgs=0;
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opcode.op=OP_halt;
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pushOperation(state->rom, &pos, &opcode);
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}
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