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Lucas Scharenbroich 140126afd8 Optimize odd-aligned case in the blitter

The SEP/REP pairs that are used to move in and out
of 8-bit mode to do the single-byte pushed on the left
and right edges of the screen can also be used to clear
the necessary carry and overflow flags.

2021-11-22 16:13:29 -06:00

.vscode

Update skeleon to show a pictire on-screen

2020-08-19 00:35:30 -05:00

archive

Add an archive of the old GTE sources

2018-07-30 23:23:05 -05:00

demos

Use the 'f' key to have the SPRITE_HIDE flag set every other frame for a flashing effect

2021-11-22 13:27:27 -06:00

emu

Final reorg; all projects build into a unified disk image for testing

2021-08-26 17:15:44 -05:00

macros

Fix transposed argument in macro definition; dynamic tile + sprite now working

2021-11-19 13:26:19 -06:00

ref

Reorg files; focus on S16 artifact

2021-03-21 21:59:54 -05:00

src

Optimize odd-aligned case in the blitter

2021-11-22 16:13:29 -06:00

tools

Fix mask generation bug; mask was reversed

2021-11-20 11:09:57 -06:00

.gitignore

Tweak ignore files

2021-08-30 22:13:24 -05:00

README.md

Initial commit

2016-11-23 22:03:24 -06:00

README.md

iigs-game-engine

A tile-based game engine for the Apple IIgs written in 65816 asssembly language