The Small Computer Monitor (SCM) is a classic machine code monitor for Z80 based systems. Version 1.0 remains the current version for the hardware listed below, while revisions and new hardware are using SCM v1.1

• SCM v1.0 – Description
• SCM v1.0 – Source Code (see SCWorkshop download)
• SCM v1.0 – Third Party Support
• SCM v1.0 – Apps

Known Bugs and Limitations

• Single stepping does not execute instructions that result in the program counter not changing, such as DJNZ when B > 1 and the relative jump is to itself

Downloads

• SCM v1.0 – Installation, edition 1.0.0 (PDF)
• SCM v1.0 – Reference Sheet, edition 1.0.0 (PDF)
• SCM v1.0 – Tutorial, edition 1.0.0 (PDF)
• SCM v1.0 – User Guide, edition 1.0.0 (PDF)

• Asm80.com Online Assembler Tutorial edition 1.0.0 (PDF)

• SCWorkshop v0.2.0 plus SCMonitor v1.0.0.20190124 (ZIP)
  • Pre-built ROM images (HEX files) can be found in the folder: SCWorkshop\SCMonitor\Builds
  • Detailed documentation can be found in the folder: SCWorkshop\SCMonitor\Documentation

Older Versions

• SCWorkshop v0.1.9 plus SCMonitor v1.0.0.20181027 (ZIP)
• SCWorkshop v0.1.7 plus SCMonitor v1.0.0.20180602 (ZIP)
• SCWorkshop v0.1.6 plus SCMonitor v1.0.0.20180501 (ZIP)

Supported Hardware

• Bill Shen’s Z280RC, ZZ80RC, Z80SBC64 and Z80MB64
• LiNC80 official systems
• RC2014 official systems
• Small Computer 101 (SC101)
• Small Computer 108 (SC108)
• Small Computer 111 (SC111)
• Small Computer 114 (SC114)
• Small Computer 118 (SC118)
• Tom Szolyga’s SBC version C
• Small Computer Workshop IDE
• Z80 Small Computer (Z80sc)