From cfc938ee9e872639fce8dcd37e64214e4e503fb1 Mon Sep 17 00:00:00 2001 From: Vince Weaver Date: Thu, 26 May 2022 00:22:50 -0400 Subject: [PATCH] demo: o: accidentally found better starting point --- demos/o/dsr_scroll.s | 10 +++++++++- demos/o/file_id.diz | 14 ++++++++++++++ 2 files changed, 23 insertions(+), 1 deletion(-) create mode 100644 demos/o/file_id.diz diff --git a/demos/o/dsr_scroll.s b/demos/o/dsr_scroll.s index 73000c60..bd5f633c 100644 --- a/demos/o/dsr_scroll.s +++ b/demos/o/dsr_scroll.s @@ -64,8 +64,16 @@ SETGR = $FB40 WAIT = $FCA8 ; delay 1/2(26+27A+5A^2) us +; d000 was first +; f300 not bad +; f400 good +; f500 so so +; f600 less so +; f700 soso +; f800 -pattern1 = $d000 ; location in memory to use as +pattern1 = $f800 ; location in memory to use as +;pattern1 = $d000 ; location in memory to use as ; background pixel pattern diff --git a/demos/o/file_id.diz b/demos/o/file_id.diz new file mode 100644 index 00000000..d467ea1e --- /dev/null +++ b/demos/o/file_id.diz @@ -0,0 +1,14 @@ +dSr Scroll +- +256-byte Intro for Apple II, Outline 2022 +by Deater / dSr + +Wiggles the Desire logo in Hires (shape tables and page flip) +Then scrolls some lo-res chunky pixels under a DSR logo. +The lo-res pattern is just ROM/RAM contents, so some of it +might look a bit different depending on the state of RAM. + +It plays some sound through the beeper/speaker. No timers +on the Apple II so that's all cycle counted. + +There are various tricks going on to make this all fit.