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| author | Miquel Sabaté Solà <msabate@suse.com> | 2023-10-24 17:40:19 +0200 |
|---|---|---|
| committer | Miquel Sabaté Solà <mikisabate@gmail.com> | 2025-02-04 20:58:36 +0100 |
| commit | 149020464517ff3d021eef5ccd50d3939ad463e6 (patch) | |
| tree | 056ec1919fe0c0d515e7a0a414916307b768ef84 /space/src/states/game.s | |
| parent | be2414f5b11b182998fca7e87712ff0502c8ee93 (diff) | |
| download | code.nes-149020464517ff3d021eef5ccd50d3939ad463e6.tar.gz code.nes-149020464517ff3d021eef5ccd50d3939ad463e6.zip | |
Lay out a proper structure for the project
Let's divide things by topic instead of a broad "examples" directory.
This will allow for simple files to co-exist together with full-blown
projects.
Signed-off-by: Miquel Sabaté Solà <msabate@suse.com>
Diffstat (limited to 'space/src/states/game.s')
| -rw-r--r-- | space/src/states/game.s | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/space/src/states/game.s b/space/src/states/game.s new file mode 100644 index 0000000..ca8a49b --- /dev/null +++ b/space/src/states/game.s @@ -0,0 +1,21 @@ +.scope Game + ;; Contains relevant flags for the execution of the game: + ;; - 7: set to 1 whenever the game logic is over and we can start + ;; rendering; set to 0 when rendering is done. + ;; - 6-0: unused. + flags = $20 +.endscope + +;; SET_RENDER_FLAG sets the render bit on Game::flags to 1. +.macro SET_RENDER_FLAG + lda #%10000000 + ora Game::flags + sta Game::flags +.endmacro + +;; UNSET_RENDER_FLAG sets the render bit on Game::flags to 0. +.macro UNSET_RENDER_FLAG + lda #%01111111 + and Game::flags + sta Game::flags +.endmacro |