The one thing I lamented about the Apple II Plus (vs. the original with Integer BASIC) was that to make room for autostart, they had to rip out the mini-assembler in the Monitor ROM. That was the closest thing I ever saw to an assembly-language REPL before this. At least they were able to keep the disassembler.
You should support symbols... For example, the monitor on my 6800 / 6809 Exorciser simulator has this (the "Offset at..." is printed when it fixes forward references):
~/exorsim$ exor -d
% a 1000
1000: start bra skip
1002: nop
1003: nop
1004: skip ldx #10
Offset at 1001 set to 02
1007: loop dex
1008: nop
1009: bne loop
100b: rts
100c:
% sy
1007 loop
1004 skip
1000 start
% u 1000
1000: 20 02 BRA $1004
1002: 01 NOP
1003: 01 NOP
1004: CE 00 0A LDX #$000A
1007: 09 DEX
1008: 01 NOP
1009: 26 FC BNE $1007
100B: 39 RTS
What would be even better: "a" brings up a built-in mini-editor. When you exit, the code is assembled.
I also wish I could select from the completion list with Tab without typing more of the instruction, fish-style. I.e., you press Tab to go through completion 1, completion 2, ..., completion N, completion 1 again with Enter to confirm your pick.
torutofu
the fun part is how fast you can get back into Z80 muscle memory once the repl is giving you immediate feedback
j4cobgarby
Really nice! Would be fun if there were a few examples that could be loaded into memory
The one thing I lamented about the Apple II Plus (vs. the original with Integer BASIC) was that to make room for autostart, they had to rip out the mini-assembler in the Monitor ROM. That was the closest thing I ever saw to an assembly-language REPL before this. At least they were able to keep the disassembler.
The source code for this is apparently 8 years old: https://github.com/abagames/z80-repl
With that said, I love the idea.
You should support symbols... For example, the monitor on my 6800 / 6809 Exorciser simulator has this (the "Offset at..." is printed when it fixes forward references):
What would be even better: "a" brings up a built-in mini-editor. When you exit, the code is assembled.https://github.com/jhallen/exorsim
Cool idea! The REPL needs to handle whitespace after an instruction with no operands:
I also wish I could select from the completion list with Tab without typing more of the instruction, fish-style. I.e., you press Tab to go through completion 1, completion 2, ..., completion N, completion 1 again with Enter to confirm your pick.the fun part is how fast you can get back into Z80 muscle memory once the repl is giving you immediate feedback
Really nice! Would be fun if there were a few examples that could be loaded into memory