Barely-IBM-compatible PC emulator written in Lua 5.3.
- Run ./compile.sh on a (preferably?) Linux machine.
- Edit disks.lua to point to your disk images.
- Run platform_oc.lua in OpenComputers or Kallisti, or platform.lua with lcurses (text mode only).
- CPU: 8086-esque
- Graphics: CGA (640x200x1, 320x200x2, text modes), 320x200x8 (Mode 13h)
- With some partial I/O ports emulation!
- BIOS: High-level emulation
- Decent implementations of most expected interrupts
- Audio: PC Speaker (Computronics Beep Card)
- Keyboard: PC XT-compatible
- 8259 PIC
- 8253 PIT
Not even tested
- Graphics: Tandy-compatible
Not even implemented
- BIOS: Serial/Printer Port interrupts, INT 15h
- Pretty much anything not listed
- platform.lua outputs debug text to stderr. Run with “2>/dev/null” to avoid.
- The performance on my desktop (i7-4790K) seems to be:
- about 3x PC XT in Lua 5.3,
- about 0.6x PC XT in latest stable OpenComputers,
- about 1x PC XT in latest stable OpenComputers + fixed machine.lua - you may override
- about 1.8x PC XT in latest stable OpenComputers + fixed machine.lua + natives recompiled to actually use -O2 and not debug mode,
- about 2.5x PC XT in Kallisti with the timeout-checking code disabled altogether, and about 1.8x PC XT otherwise.
- There’s a lot of bugs and hacks.
Many. See the Wiki for the Compatibility List.
In particular, a “reduced memory usage” mode has to be introduced for OC users.
TBD. For now, consider it “all rights reserved” - or just ask on IRC.
- 8086tiny, for providing the initial motivation and being one of the emulators which proved helpful during
- Publicly available 8086 test suites used: