Emulator and debugger for my 6502 single board computer.

Based on fake6502.

• Read and write memory locations
• Partial emulation of 6522 VIA
• Partial emulation of 6551 ACIA
• Interact with ACIA over a virtual serial port
• Step through code line-by-line or run to an optional breakpoint
• Built in (buggy but functional) disassembler

$ ./mm6502 -b ~/code/6502/ehbasic/rom.bin 
info:acia.c:65:acia at 4000 on /dev/pts/6
info:memory.c:7:init memory segment 0000-ffff
info:memory.c:7:init memory segment 8000-ffff
info:memory.c:28:loading /home/matt/code/6502/ehbasic/rom.bin to 8000
info:repl.c:138:cpu reset
pc=a866 f=-z---- a=00 x=00 y=00 s=00fd
a866: cld          ; d8
? r 807f
pc=807f f=cz-dv- a=40 x=00 y=00 s=00ff
807f: lda 11     ; a5 11
? m 10

0010: f2 00 40 00 00 00 00 00 00 00 00 00 00 00 00 00
? z
807f: lda 11     ; a5 11
8081: ldy 12     ; a4 12
8083: cpy #05      ; c0 05
8085: bcc 97       ; 90 97
8087: sta 85     ; 85 85
8089: sty 86     ; 84 86
808b: sta 81     ; 85 81
808d: sty 82     ; 84 82
808f: ldy #00      ; a0 00
8091: ldx #04      ; a2 04
8093: sty 79     ; 84 79
8095: stx 7a     ; 86 7a
8097: tya          ; 98
8098: sta (e679),y ; 91 79 e6
809b: adc 9820,y   ; 79 20 98
809e: dey          ; 88