Appler: Apple ][ emulator for IBM PC, written in 8088 assembly

• appler

  17 251 1.9 Assembly

  Apple ][ emulator for MS-DOS, written in 8088 assembly

Oh my, the 6502 emulation [1] has fewer lines of assembly code than my (code-generated) implementation has lines of C code [2] :D

Very nice use of a macro assembler though [3], makes the code feel very high level.

To my defense, the generated code has a lot of redundancies (such as assert(false) which were meant to catch any 'stray cycles' but which are removed in release mode.

[1] https://github.com/zajo/appler/blob/develop/src/65C02.ASM

[2] https://github.com/floooh/chips/blob/master/chips/m6502.h

[3] https://github.com/zajo/appler/blob/52aaa0f768cdf303438cd2c7...

• chips

  9 911 7.7 C

  8-bit chip and system emulators in standalone C headers

Oh my, the 6502 emulation [1] has fewer lines of assembly code than my (code-generated) implementation has lines of C code [2] :D

Very nice use of a macro assembler though [3], makes the code feel very high level.

To my defense, the generated code has a lot of redundancies (such as assert(false) which were meant to catch any 'stray cycles' but which are removed in release mode.

[1] https://github.com/zajo/appler/blob/develop/src/65C02.ASM

[2] https://github.com/floooh/chips/blob/master/chips/m6502.h

[3] https://github.com/zajo/appler/blob/52aaa0f768cdf303438cd2c7...

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• 8086tiny

  2 50 10.0 Assembly

  8086tiny interpreter by Adrian Cable, taken from http://www.megalith.co.uk/8086tiny/ (by alblue)

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