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Added vm_execute support for mov routines

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Similar to push routines support.  Easy to extend by adding items to
the MOV_ROUTINES array.
This commit is contained in:
Aryadev Chavali
2023-10-15 21:05:56 +01:00
parent 3f8544485a
commit 2bc20f07d3
1 changed files with 12 additions and 1 deletions
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13
src/main.c
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@@ -148,6 +148,7 @@ f64 vm_pop_float(vm_t *vm)
} }
typedef void (*push_f)(vm_t *, data_t); typedef void (*push_f)(vm_t *, data_t);
typedef void (*mov_f)(vm_t *, data_t, word);
static const push_f PUSH_ROUTINES[] = { static const push_f PUSH_ROUTINES[] = {
[OP_PUSH_BYTE] = vm_push_byte, [OP_PUSH_BYTE] = vm_push_byte,
@@ -155,6 +156,12 @@ static const push_f PUSH_ROUTINES[] = {
[OP_PUSH_FLOAT] = vm_push_float, [OP_PUSH_FLOAT] = vm_push_float,
}; };
static const mov_f MOV_ROUTINES[] = {
[OP_MOV_BYTE] = vm_mov_byte,
[OP_MOV_WORD] = vm_mov_word,
[OP_MOV_FLOAT] = vm_mov_float,
};
void vm_execute(vm_t *vm) void vm_execute(vm_t *vm)
{ {
struct Program *prog = &vm->program; struct Program *prog = &vm->program;
@@ -163,12 +170,16 @@ void vm_execute(vm_t *vm)
return; return;
inst_t instruction = prog->instructions[prog->ptr]; inst_t instruction = prog->instructions[prog->ptr];
// Check if opcode is PUSH_LIKE
if (OPCODE_IS_PUSH(instruction.opcode)) if (OPCODE_IS_PUSH(instruction.opcode))
{ {
PUSH_ROUTINES[instruction.opcode](vm, instruction.operand); PUSH_ROUTINES[instruction.opcode](vm, instruction.operand);
prog->ptr++; prog->ptr++;
} }
else if (OPCODE_IS_MOV(instruction.opcode))
{
MOV_ROUTINES[instruction.opcode](vm, instruction.operand, instruction.reg);
prog->ptr++;
}
else else
{ {
// TODO: Error (Unknown opcode) // TODO: Error (Unknown opcode)