Apple-2-Tools/reinette-II-plus
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README.md
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@ -21,7 +21,7 @@ After [reinette](https://github.com/ArthurFerreira2/reinette) (Apple 1 emulator)
* zoom the window by integer increments * zoom the window by integer increments
It uses the same MOS 6502 CPU emulator as her sisters (now christened puce6502).\ It uses the same MOS 6502 CPU emulator as her sisters (now christened [puce6502](https://github.com/ArthurFerreira2/puce6502)).\
You only need SDL2 to compile it. (I'm not using SDL_Mixer, but only the native SDL2 audio functions) You only need SDL2 to compile it. (I'm not using SDL_Mixer, but only the native SDL2 audio functions)
@ -30,7 +30,7 @@ This emulator is not accurate in many ways and does not compete with
I wrote it in the goal to better understand the Apple ][ internals, and I'm publishing the sources in the hope they will be of any help. I wrote it in the goal to better understand the Apple ][ internals, and I'm publishing the sources in the hope they will be of any help.
It's compact, less 1000 SLOC, with two source files only, one for the CPU emulation, the other for the computer itself. It's compact, less 800 SLOC, with two source files only, one for the CPU emulation, the other for the computer itself.
I did my best to comment everything, and if you have an idea of how an Apple ][ works, it should be easy for you to understand the code, modify and enhance it for your needs (see TODO section). I did my best to comment everything, and if you have an idea of how an Apple ][ works, it should be easy for you to understand the code, modify and enhance it for your needs (see TODO section).
@ -46,7 +46,7 @@ Drag and drop a disk image file (.nib format only) to inset it into drive 1\
Drop the file while pressing the ALT key to insert it into drive 2 Drop the file while pressing the ALT key to insert it into drive 2
Use the functions keys to control the emulator itself Use the functions keys to control the emulator itself
```
* F1 : writes the changes of the floppy in current drive back to host * F1 : writes the changes of the floppy in current drive back to host
* F5 : zoom out down to 1:1 * F5 : zoom out down to 1:1
* F6 : zoom in, no magnification limit * F6 : zoom in, no magnification limit
@ -64,17 +64,17 @@ Paddles / Joystic :
* numpad 3 : up * numpad 3 : up
* CTRL : button 0 * CTRL : button 0
* ALT : button 1 * ALT : button 1
```
### limitations ### limitations
* High pitch noise at high volume (might be related with my environment) * high pitch noise at high volume (might be related with my environment)
* Sound cracks when playing for long period (intro music for example) * sound cracks when playing for long period (intro music for example)
* CPU is not 100% cycle accurate - see source file for more details * CPU is not 100% cycle accurate - see source file for more details
* Colors are approximate (taken from a scan of an old Beagle bros. poster) * colors are approximate (taken from a scan of an old Beagle bros. poster)
* HGR is inhacurate, and does not implement color clashing * HGR is inhacurate, and does not implement color clashing
* disk ][ access is artificially accelerated * disk ][ access is artificially accelerated
* Only support .nib floppy images. (you can use [CiderPress](https://github.com/fadden/ciderpress) to convert your images to this format) * only support .nib floppy images. (you can use [CiderPress](https://github.com/fadden/ciderpress) to convert your images to this format)
* only has 48KB of RAM (can't run some software requiring the language card) * only has 48KB of RAM (can't run some software requiring the language card)
* and many others ... * and many others ...