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#include <stdio.h>
#include <stdint.h>
#include "cpu.h"
#include "log.h"
#include "opc.h"
uint32_t compile(const char *line)
{
char mnem[4];
int32_t a = 0, b = 0, c = 0;
/* arithmetic & logic */
if (sscanf(line, "%3s r%2d, r%2d, r%2d", mnem, &a, &b, &c) == 4)
return mnemonic2opc(mnem) | ((a & 0x1F) << 21) | ((b & 0x1F) << 16) | ((c & 0x1F) << 11);
/* load/store & branch */
if (sscanf(line, "%3s r%2d, r%2d, %d", mnem, &a, &b, &c) == 4)
return mnemonic2opc(mnem) | ((a & 0x1F) << 21) | ((b & 0x1F) << 16) | (c & 0xFFFF);
if (sscanf(line, "%3s r%2d, %d", mnem, &b, &c) == 3)
return mnemonic2opc(mnem) | ((b & 0x1F) << 16) | (c & 0xFFFF);
/* jump */
if (sscanf(line, "%3s r%2d", mnem, &a) == 2)
return mnemonic2opc(mnem) | ((a & 0x1F) << 21);
/* misc */
if (sscanf(line, "%3s", mnem) == 1)
return mnemonic2opc(mnem);
return 0xFFFFFFFF;
}
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