Chips › Processors › Early microprocessors › Signetics 2650
Signetics 2650
1975
Signetics' 1975 8-bit microprocessor, found in early arcade games and the Emerson Arcadia 2001 console.
Emulators
| Emulator | Type | License | Site |
|---|---|---|---|
| WinArcadia | downloadable | Freeware | Website ↗ |
Reference & documentation
External technical references for programming Signetics 2650 and for writing emulators.
| Resource | Type | Notes |
|---|---|---|
| 1975 Signetics 2650 datasheet (bitsavers) ↗ | Datasheet | Original datasheet: electrical, cycle timing, signals |
| Signetics 2650 Series Datasheet, revised (2650 Restoration Project) ↗ | Datasheet | 1979 revision covering 2650A/A-1/B/B-1 variants |
| Signetics 2650 User Manual (full instruction reference) ↗ | Instruction set | Every instruction: binary opcode, timing, affected registers, pseudocode |
| 1975 Signetics 2650 datasheet (pinout) ↗ | Pinout | 40-pin DIP pinout, bus and control signals |
| Signetics 2650 & 2636 programming (Wikibooks) ↗ | Programming | Assembly guide: addressing modes, PSW, interrupts, reset |
| MAME 2650dasm.cpp disassembler ↗ | Reference | Complete opcode-to-mnemonic decoding tables |
| Signetics 2650 (Wikipedia) ↗ | Reference | Opcode structure, nine addressing modes, instruction counts |
| MAME s2650.cpp CPU emulation core ↗ | Source | Reference portable C++ 2650 emulation core |
| WinArcadia emulator / assembler / debugger (amigan) ↗ | Tool | Multi-emulator, assembler, disassembler, debugger with source |