add Antic opcodes (submitted by Christian Krueger)

git-svn-id: svn://svn.cc65.org/cc65/trunk@4968 b7a2c559-68d2-44c3-8de9-860c34a00d81

diff --git a/asminc/atari.inc b/asminc/atari.inc
index 135f7d6b49aee015a3f75152054dfb77c83a1454..8d84311be76d56cb10a467c834eb767d049fb0a3 100644 (file)
--- a/asminc/atari.inc
+++ b/asminc/atari.inc
@@ -1,6 +1,6 @@
 ;-------------------------------------------------------------------------
 ; Atari System Equates
-; by Freddy Offenga & Christian Groessler
+; by Freddy Offenga, Christian Groessler, and Christian Krueger
 ;
 ; References:
 ; - Atari 400/800 OS rev.B source code, Atari 1979
@@ -1017,7 +1017,7 @@ STMTAB    = $88           ;2-byte statement table address
 STMCUR = $8A           ;2-byte current statement pointer
 STARP  = $8C           ;2-byte string and array table pointer
 RUNSTK = $8E           ;2-byte runtime stack address
-;MEMTOP        = $90           ;2-byte top of memory pointer
+BMEMTOP        = $90           ;2-byte top of memory pointer
 STOPLN = $BA           ;2-byte stopped line number
 ERRSAVE        = $C3           ;1-byte error code
 PTABW  = $C9           ;1-byte tab width
@@ -1096,6 +1096,73 @@ MYDOS        = 3
 NODOS        = 255
 
 ;-------------------------------------------------------------------------
-; End of atari.inc
+; Antic opcodes
 ;-------------------------------------------------------------------------
 
+; usage example:
+;
+; ScreenDL:
+; .byte        DL_BLK8
+; .byte        DL_BLK8
+; .byte DL_CHR40x8x1 + DL_LMS + DL_DLI
+; .word        ScreenAlignment
+; .byte        DL_BLK1 + DL_DLI
+; .byte        DL_MAP320x1x1 + DL_LMS
+; .word        Screen
+;
+; .repeat 99
+; .byte        DL_MAP320x1x1
+; .endrepeat
+; .byte        DL_MAP320x1x1 + DL_LMS
+; .word        Screen + 40 * 100       ; 100 lines a 40 byte, 'Screen' has to be aligned correctly!
+; .repeat 92
+; .byte        DL_MAP320x1x1
+; .endrepeat
+;
+; .byte        DL_JVB
+
+; absolute instructions (non mode lines)
+
+DL_JMP = 1
+DL_JVB  = 65
+
+DL_BLK1  = 0
+DL_BLK2  = 16
+DL_BLK3  = 32
+DL_BLK4  = 48
+DL_BLK5  = 64
+DL_BLK6  = 80
+DL_BLK7  = 96
+DL_BLK8  = 112
+
+; absolute instructions (mode lines)
+
+DL_CHR40x8x1  = 2              ; monochrome, 40 character & 8 scanlines per mode line (GR. 0)
+DL_CHR40x10x1 = 3              ; monochrome, 40 character & 10 scanlines per mode line
+DL_CHR40x8x4  = 4              ; colour, 40 character & 8 scanlines per mode line (GR. 12)
+DL_CHR40x16x4 = 5              ; colour, 40 character & 16 scanlines per mode line (GR. 13)
+DL_CHR20x8x2  = 6              ; colour (duochrome per character), 20 character & 8 scanlines per mode line (GR. 1)
+DL_CHR20x16x2 = 7              ; colour (duochrome per character), 20 character & 16 scanlines per mode line (GR. 2)
+
+DL_MAP40x8x4  = 8              ; colour, 40 pixel & 8 scanlines per mode line (GR. 3)
+DL_MAP80x4x2  = 9              ; 'duochrome', 80 pixel & 4 scanlines per mode line (GR.4) 
+DL_MAP80x4x4  = 10             ; colour, 80 pixel & 4 scanlines per mode line (GR.5) 
+DL_MAP160x2x2 = 11             ; 'duochrome', 160 pixel & 2 scanlines per mode line (GR.6) 
+DL_MAP160x1x2 = 12             ; 'duochrome', 160 pixel & 1 scanline per mode line (GR.14) 
+DL_MAP160x2x4 = 13             ; 4 colours, 160 pixel & 2 scanlines per mode line (GR.7) 
+DL_MAP160x1x4 = 14             ; 4 colours, 160 pixel & 1 scanline per mode line (GR.15) 
+DL_MAP320x1x1 = 15             ; monochrome, 320 pixel & 1 scanline per mode line (GR.8) 
+
+; modifiers on mode lines...
+
+DL_HSCROL = 16
+DL_VSCROL = 32
+DL_LMS    = 64
+
+; general modifier...
+
+DL_DLI   = 128
+
+;-------------------------------------------------------------------------
+; End of atari.inc
+;-------------------------------------------------------------------------