more cleanup

2015-11-29 20:04:10 +01:00
parent c636675521
commit b39a8b7a61
13 changed files with 669 additions and 607 deletions
--- a/asminc/gamate.inc
+++ b/asminc/gamate.inc
@@ -51,20 +51,14 @@ COLOR_GREY2     = 1
 COLOR_GREY1     = 2
 COLOR_BLACK     = 3

-;-------------------------------------------------------------------------------
 ; bios zp usage:
-;
-; 06/07         address of character set bitplane 1
-; 08/09         address of character set bitplane 2
-; 0a            nmi $4800 echo
-; 0b            irq counter
-; 0c            nmi call cart nmi
-; 0e/0f/10/11   big endian irq counter
-; 15/16/17      ?/xpos/ypos
-;
-; e8            nmi reset to $ff
-;
-
 ZP_NMI_4800     = $0a
-ZP_NMI_ENABLE   = $0c
+ZP_IRQ_COUNT    = $0b
+ZP_IRQ_CTRL     = $0c

+ZP_IRQ_CNT1     = $0e
+ZP_IRQ_CNT2     = $0f
+ZP_IRQ_CNT3     = $10
+ZP_IRQ_CNT4     = $11
+
+ZP_NMI_FLAG     = $e8