byuu says:
Changelog:
- PCE: emulated gamepad polling
- PCE: emulated CPU interrupt sources
- PCE: emulated timer
- PCE: smarter emulation of ST0,ST1,ST2 instructions
- PCE: better structuring of CPU, VDP IO registers
- PCE: connected palette generation to the interface
- PCE: emulated basic VDC timing
- PCE: emulated VDC Vblank, Coincidence, and DMA completion IRQs
- PCE: emulated VRAM, SATB DMA transfers
- PCE: emulated VDC I/O registers
Everything I've implemented today likely has lots of bugs, and is
untested for obvious reasons.
So basically, after I fix many horrendous bugs, it should now be
possible to implement the VDC and start getting graphical output.
Tim Allen