cardiograph-computer/2023-10-01.md

2023-10-01 — Dev notes

i like the compare and branch setup here: https://schweigi.github.io/assembler-simulator/instruction-set.html

A very incomplete survey of 8-bit RISC machines

• https://github.com/NayanaBannur/8-bit-RISC-Processor
• https://kevinpt.github.io/opbasm/rst/tutorial.html
• https://www.allaboutcircuits.com/ip-cores/processor/open8-urisc/
• https://opencores.org/projects/natalius_8bit_risc
• https://hackaday.io/project/28042-phx8-homebrew-8bit-risc-cpu
• https://shubham1172.github.io/SRM/

Simple-As-Possible computer

• Simple-As-Possible computer - Wikipedia
• http://aserrano.es/portafolio/informatica-con-processing/sap1english/

?? ADC

maybe swap add for adc — you can always manually zero the flag

flags

i do wonder if they should be done in a more conventional way