6502: Coding

After you’ve finished Ben Eater’s 6502 computer project, if not long before, as with me, you may be wondering about editor and assembler options for your 6502 coding work. Ben uses a basic Linux based editor and the VASM assembler throughout his project. If you are a regular Linux user you may be comfortable using …

6502: Memory

My first 6502 build, which followed Ben Eater’s 6502 computer project, uses two pretty pedestrian memory chips, an Atmel AT28C256 32k byte EEPROM and a 62256 32k byte SRAM. The EEPROM has a relatively slow 150 nanosecond access time. The SRAM access time is faster at 70 nanoseconds. The significance of these access times become …