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fix instuction pointer increment

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This commit is contained in:
HiveBeats
2024-01-20 18:08:05 +07:00
parent e3ed6a3af2
commit 9c8ae2aed3
1 changed files with 4 additions and 18 deletions
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22
elm.go
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@@ -77,6 +77,7 @@ func (m* Machine) Execute() error {
m.stack[m.sp] = 0 m.stack[m.sp] = 0
m.sp-- m.sp--
m.ip++
case DUP: case DUP:
if (m.sp - instr.Operand <= 0) { if (m.sp - instr.Operand <= 0) {
return errors.New("Stack Underflow") return errors.New("Stack Underflow")
@@ -92,6 +93,7 @@ func (m* Machine) Execute() error {
m.stack[m.sp] = m.stack[m.sp - 1 - instr.Operand] m.stack[m.sp] = m.stack[m.sp - 1 - instr.Operand]
m.sp++ m.sp++
m.ip++
case ADD: case ADD:
if (m.sp < 2) { if (m.sp < 2) {
return errors.New("Stack size is less than required to execute binary operation") return errors.New("Stack size is less than required to execute binary operation")
@@ -270,23 +272,7 @@ func (m* Machine) InterpretProgramFromFile(filename string) error {
func main() { func main() {
m := Constructor() m := Constructor()
// m.Push(Inst{Operation: PUSH, Operand: 1})
// m.Push(Inst{Operation: PUSH, Operand: 2})
// m.Push(Inst{Operation: ADD})
// m.Push(Inst{Operation: PUSH, Operand: 2})
// m.Push(Inst{Operation: SUB})
// m.Push(Inst{Operation: PUSH, Operand: 6})
// m.Push(Inst{Operation: MUL})
// m.Push(Inst{Operation: PUSH, Operand: 2})
// m.Push(Inst{Operation: DIV})
// m.Push(Inst{Operation: HALT})
// m.Push(Inst{Operation: PUSH, Operand: 1})
// m.Push(Inst{Operation: JMPIF, Operand: 3})
// m.Push(Inst{Operation: HALT})
// m.Push(Inst{Operation: PUSH, Operand: 1})
// m.Push(Inst{Operation: PUSH, Operand: 2})
// m.Push(Inst{Operation: HALT})
err := m.InterpretProgramFromFile("program.lil") err := m.InterpretProgramFromFile("program.lil")
if err != nil { if err != nil {
fmt.Fprintf(os.Stderr, "[ERR] %s\n", err); fmt.Fprintf(os.Stderr, "[ERR] %s\n", err);
@@ -294,7 +280,7 @@ func main() {
} }
stackCounter := 0 stackCounter := 0
for !m.isHalted { for !m.isHalted && stackCounter < 100 {
err = m.Execute() err = m.Execute()
m.Print() m.Print()
if err != nil { if err != nil {