BIOS Replacement
Look into what might be needed to do an actual BIOS replacement that has the ilo vm in x86 ROM.
Project board
ilo
ilo is a virtual computer implementing a dual stack processor with a simple instruction set and a few i/o devices. It's small and can be easily implemented and/or extended by an individual programmer.
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Suggestions
3new implementation: RISC-V Assembly
Write a spec for external i/o extensions via block-based RPC
implementations
29C
C++
C#
Ada
Common Lisp
D
Fortran 77
F#
Go
Hare
Haskell
Java
Kotlin
Lua
Nim
Oberon
Pascal
Python
RetroForth
Rust
Scheme
Smalltalk
Swift
TypeScript
Zig
aarch64 assembly
8088 assembly
x86 assembly
amd64 assembly
Documentation
4More detail on the number handling in cases of overflow
Suggest behavior for error handling
Most error handling should be left to the implementer, but the spec should suggest ways to handle common conditions
Write full spec for current graphica extension (graphica-0)
Write full spec for the future graphica extension (graphica-1)
VHDL
12identify target boards
- Cmod A7 - ICEPI Zero
cpu core: stacks
cpu core: instruction decode
cpu core: instructions
devices: uart tx
devices: uart rx
devices: sdram controller
devices: sram8 controller
devices: memory interface
devices: generic block store
devices: fifo
ghdl simulation
esp32
5target boards
add ps/2 keyboard support
vga display
Support text display over the VGA port
serial i/o
Support terminal via serial.
blocks & rom on SD card
rp2350
4serial i/o
Support terminal via serial.
rom in system flash
blocks in system flash
support for external storage for blocks
It'd be beneficial to support reading & writing blocks on an SD card, FRAM module, or other external storage.
teensy4.1
3serial i/o
Support terminal via serial.
blocks & rom on sd card
host device: rtc
UEFI
7amd64: keyboard input
amd64: graphics output protocol
basic GOP support
amd64: terminal emulation
basic term. emulator capable of supporting konilo's (termina) vocabulary
amd64: storage support
- read/write blocks from a partition - read rom from a partition