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72 lines
1.3 KiB
72 lines
1.3 KiB
package hal
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import (
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"fmt"
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"strings"
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)
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type ProgrammedInstruction struct {
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Instruction *Instruction
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Operand int64
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}
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func (pi *ProgrammedInstruction) Execute(module *Module) error {
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if pi.Instruction.ExecuteWithOperand != nil {
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pi.Instruction.ExecuteWithOperand(module, pi.Operand)
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} else if pi.Instruction.Execute != nil {
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pi.Instruction.Execute(module)
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} else {
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return fmt.Errorf("instruction is not implemented")
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}
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return nil
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}
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type Instruction struct {
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Name string
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ExecuteWithOperand func(module *Module, operand int64)
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Execute func(module *Module)
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}
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func FindInstructionByName(name string) *Instruction {
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for _, instruction := range instructions {
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if instruction.Name == strings.ToUpper(name) {
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return instruction
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}
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}
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return nil
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}
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var instructions = []*Instruction{
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InstructionStart,
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InstructionStop,
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InstructionIn,
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InstructionOut,
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}
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var InstructionStart = &Instruction{
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Name: "START",
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Execute: func(module *Module) {
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// TODO implement
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},
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}
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var InstructionStop = &Instruction{
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Name: "STOP",
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Execute: func(module *Module) {
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// TODO implement
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},
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}
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var InstructionOut = &Instruction{
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Name: "OUT",
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Execute: func(module *Module) {
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// TODO implement
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},
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}
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var InstructionIn = &Instruction{
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Name: "IN",
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Execute: func(module *Module) {
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// TODO implement
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},
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}
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