Differences

This shows you the differences between two versions of the page.

--- code_snippets [2016/06/01 15:13]
ex_writer
+++ code_snippets [2016/06/05 16:11] (current)
ex_writer [Arcade Examples]
@@ Line 1: / Line 1: @@
 ====== Code Snippets ======
+===== Arcade Examples =====
 This section uses code snippets from existing Bally Arcade games and demos to demonstrate important and/or commonly-used functions. Snippets are typically followed by a short discussion of how and why the listing works as it does.
-  * The [[bunker|Space Invaders bunker]] snippet demonstrates how to write a pattern to the screen with [[screen handler#writp|WRITP]].
+  * The [[bunker|Space Invaders bunker]] snippet demonstrates how to write a pattern to the screen with [[system routines:screen handler#writp|WRITP]].
-  * The [[base|Space Invaders base]] snippet demonstrates how to write a pattern to the screen with [[screen handler#writ|WRIT]].
+  * The [[base|Space Invaders base]] snippet demonstrates how to write a pattern to the screen with [[system routines:screen handler#writ|WRIT]].
-  * The [[invader music|Space Invaders sound effect]] snippet demonstrates how to play sound using [[interrupt scheduler#bmusic|BMUSIC]].
+  * The [[invader music|Space Invaders sound effect]] snippet demonstrates how to play sound using [[system routines:interrupt scheduler#bmusic|BMUSIC]].
-  * The [[star expander|Star Battle expanded pattern]] snippet demonstrates [...]
+  * The [[star expander|Star Battle expanded pattern]] snippet demonstrates how to use the Magic System's Expander option to write patterns.
+===== Z80 Examples =====
+This section includes code snippets for useful Z80 routines.
+  * [[Packed BCD subtraction]] demonstrates subtracting BCD numbers of varying length.
+  * [[Packed BCD addition]] demonstrates adding BCD numbers of varying length.