| 241 | } |
| 242 | |
| 243 | func parseOneRegisterInstruction(name string, operands string) (Instruction, error) { |
| 244 | registers := ONE_REGISTER_EXTRACTOR.FindStringSubmatch(operands) |
| 245 | |
| 246 | if len(registers) != 2 { |
| 247 | return nil, fmt.Errorf("Instruction %s only supports one register", name) |
| 248 | } |
| 249 | |
| 250 | var register1 REGISTER |
| 251 | if v, ok := REGISTERS[registers[1]]; !ok { |
| 252 | return nil, fmt.Errorf("Unknown register %s for instruction %s", registers[1], name) |
| 253 | } else { |
| 254 | register1 = v |
| 255 | } |
| 256 | |
| 257 | switch name { |
| 258 | case "SHL": |
| 259 | return SHL{register1}, nil |
| 260 | case "SHR": |
| 261 | return SHR{register1}, nil |
| 262 | case "NOT": |
| 263 | return NOT{register1}, nil |
| 264 | case "JR": |
| 265 | return JR{register1}, nil |
| 266 | default: |
| 267 | return nil, fmt.Errorf("unknown/unsupported instruction %s", name) |
| 268 | } |
| 269 | } |
| 270 | |
| 271 | /* |
| 272 | func parseDataInstruction(operands string) (Instruction, error) { |