a Z80-based fantasy console.
go run ./cmd/tom80 -game <name>
# or, if you've `go install`ed
tom80 -game <name>where name is the name of a program (compiled program should be at prgm/<name>/<name>.bin)
make sure you have asm80 installed
asm80 -m Z80 -t bin -o <name>.bin <path>/<name>.asm
# <name>.bin will be output in <path>or use asm80.com (asm80 docs)
programs should start like:
.cstr "name:program name"
.cstr "author:your name"
.cstr "version:0.0"
.org 0x0C00if you know what you're doing, you may add .cstr "clear:false", and VRAM will not be cleared after loading the ROM.
- Screen
- 64 x 48 pixels
- 6-bit colour (
0b[__RRGGBB]) - VRAM 0x0000 - 0x0BFF
- Controls
- ports 0x01 - 0x08
- Up, Down, Left, Right, A, B, C, Menu (1<<7 - 1<<0)
order of unfinished items is mostly arbitrary
- rom loading
- rom info in vram area on load
- screen working
- use screen in asm
- controls working
- use controls in asm
- COMPLETE DOCS
- use flag
- add simple way to pause cpu (hajimehoshi/ebiten#1037)
- folder layout
- backend in /
- frontend in /cmd/tom80
- programs in /prgm
- use port 0x00 for system commands
- mode setting
- debug print mode
- file list mode
- file load mode
- OPTIMISE
- use byte alias for controls
- use lookup table for pixels (filled at init)
- "loader" program
- loaded into rom by default
- uses file listing/loading
- audio working
- sample generation library (superloach/sampler)
- make 8 sounds
- sine 1 (port 9)
- sine 2 (port 10)
- sine 3 (port 11)
- square 1 (port 12)
- square 2 (port 13)
- saw 1 (port 14)
- saw 2 (port 15)
- noise (port 16)
- define event type (byte alias)
- define bit values (
0bVVPPPPPP)- VV: volume, 0-3 (25, 50, 75, 100)
- PPPPP: pitch 0-63 (C2 - F7)
- use audio in asm
- standard library for asm
- simplify control keys
- shape drawing macros
- fonts?
- port asm80 to go-asm80
- integrate go-asm80
- compile from asm if bin is missing
- attempt recompile if asm is newer