Cool: Apple mini-assembler found inside Woz’ monitor inside Apple II Integer Basic
Posted by jpluimers on 2021/01/18
From a while back: [WayBack] This week, a mini-demo of the mini-assembler found inside Woz’ monitor inside Apple II Integer Basic. CALL –151 F666G … – mos6502 – Google+
This week, a mini-demo of the mini-assembler found inside Woz’ monitor inside Apple II Integer Basic.
CALL –151
F666G
You can find reconstructed sources in Jeff Tranter’s repo here:
https://github.com/jefftranter/6502/tree/master/asm/Apple%5D%5BMonitor
where we see credits to Steve Wozniak and Allen Baum. But in this oral history it seems the assembler was Baum’s work:
“Baum: So it was brute force, very simple and fit into 256 bytes if you already had the 256-byte disassembler.”
– https://youtu.be/wN02z1KbFmY?t=3941
Anyhow, one page of code – or two – is very impressive!For more info, try searching for F666G! (We wonder at this memorable address – the Apple I price was $666.)
Related:
- [WayBack] 6502/asm/Apple][Monitor at master · jefftranter/6502 · GitHub
- [Archive.is] Apple ][ Mini Assembler – Call-A.P.P.L.E.
- [Archive.is] F666G – Google Search
- [WayBack] Oral History of Allen Baum – YouTube
- [WayBack] Paint16b: A 16 byte paint program written in 12 lines | Hacker News
- [WayBack] The Infinitely Profitable Program | peetm (zero bytes long
go.comprogram to start a program at 0x100 that was already in memory) - [WayBack] martin.haye / Super-Mon / wiki / Home — Bitbucket
–jeroen
The Wiert Corner - irregular stream of stuff 
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