optromloader
zsnes
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| optromloader | zsnes | |
|---|---|---|
| 8 | 6 | |
| 47 | 110 | |
| - | - | |
| 0.0 | 5.8 | |
| over 2 years ago | 17 days ago | |
| Assembly | Assembly | |
| MIT License | GNU General Public License v3.0 only |
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optromloader
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Understanding the x86's Decimal Adjust after Addition (DAA) instruction
I have used DAA recently, in my "load option ROM in RAM floppy tool"[0]. Specifically, I use it for printing numbers as hexadecimal[1], as unfortunately the ASCII standard is not arranged in a way as to facilitate this.
0. https://github.com/rvalles/optromloader/
1. https://github.com/rvalles/optromloader/blob/master/optromlo...
- Optromloader: 8086 floppy-loading of option ROMs
- Optromloader: IBM PC/Clone 8086 floppy-loading of option ROMs
- rvalles/optromloader: IBM PC/Clone 8086+ floppy-loading of option roms.
zsnes
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Understanding the x86's Decimal Adjust after Addition (DAA) instruction
I suspect that the most popular software using DAA that folks here have used would be emulators of old systems that had BCD mode, such as the SNES. For example, ZSNES uses it: https://github.com/xyproto/zsnes/blob/main/cpu/s65816d.inc#L...
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JavaScript and accessibility
Take ZSNES for example, apparently someone forked it and made it work on modern machines.
- ZSNES fork.
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Adding Save States to an Emulator
I checked it outThats an interesting technique, I'm all for learning some code archaeology! If you got anymore I'd love to learn more.
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Taking matters into my own hands, SNES on PSP.
ZSNES itself is GPLv2 and has an actively-maintained port to modern Linux, but it's still half ASM by weight.
- ZSNES fork
What are some alternatives?
x86-bootloader - A BIOS bootloader for bare-metal x86 programs, written in 8086 assembly
bsnes-hd - bsnes fork that adds HD video features
IBM-PC-BIOS - This is a reconstruction of the original 1981-82 IBM PC BIOS source code using scanning and transcription of the BIOS listings found in the IBM Technical Reference manuals.
cemu_graphic_packs - Community Graphic Packs for Cemu
unzx0_x86 - Free, zlib licensed ZX0 decompressor for the x86
snes9x2010 - Snes9x 2010. Port of Snes9x 1.52+ to Libretro (previously called SNES9x Next). Rewritten in C and several optimizations and speedhacks.
floppybird - Floppy Bird (OS)
smt1dasm - Disassembly of Shin Megami Tensei J1.0 for the SNES
bfloader - 🧠Brainfuck IDE and interpreter in 512 bytes. (boot sector)
snes9x - Snes9x - Portable Super Nintendo Entertainment System (TM) emulator
Modernish-etch-a-sketch - A take on the classic game etch a sketch using tasm, dosbox, Arduino and a bit of 3d modeling.
NGPGBA - This is a SNK Neogeo Pocket (Color) emulator for the Nintendo GBA.