Apple-2-SW
/
mminer-apple2
mirror of https://github.com/StewBC/mminer-apple2.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Add table for unrolled rendering

This commit is contained in:
StewBC 2021-04-30 14:16:14 -07:00
parent 91d2db486b
commit a59f40b539
1 changed files with 76 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

86
src/apple2/rosystem.inc
View File

@ -23,29 +23,95 @@ rowH:
.endrep
;-----------------------------------------------------------------------------
; multiplication lookup tables
mult1024H:
.byte $00, $04, $08, $0C, $10, $14, $18, $1C, $20
; Jump table for screen tile rendering, per row - unrolled loops
rowDrawL:
.byte <tileDrawP0R0
.byte <tileDrawP0R1
.byte <tileDrawP0R2
.byte <tileDrawP0R3
.byte <tileDrawP0R4
.byte <tileDrawP0R5
.byte <tileDrawP0R6
.byte <tileDrawP0R7
.byte <tileDrawP0R8
.byte <tileDrawP0R9
.byte <tileDrawP0RA
.byte <tileDrawP0RB
.byte <tileDrawP0RC
.byte <tileDrawP0RD
.byte <tileDrawP0RE
.byte <tileDrawP0RF
.byte <tileDrawP1R0 ; Page 1
.byte <tileDrawP1R1
.byte <tileDrawP1R2
.byte <tileDrawP1R3
.byte <tileDrawP1R4
.byte <tileDrawP1R5
.byte <tileDrawP1R6
.byte <tileDrawP1R7
.byte <tileDrawP1R8
.byte <tileDrawP1R9
.byte <tileDrawP1RA
.byte <tileDrawP1RB
.byte <tileDrawP1RC
.byte <tileDrawP1RD
.byte <tileDrawP1RE
.byte <tileDrawP1RF
rowDrawH:
.byte >tileDrawP0R0
.byte >tileDrawP0R1
.byte >tileDrawP0R2
.byte >tileDrawP0R3
.byte >tileDrawP0R4
.byte >tileDrawP0R5
.byte >tileDrawP0R6
.byte >tileDrawP0R7
.byte >tileDrawP0R8
.byte >tileDrawP0R9
.byte >tileDrawP0RA
.byte >tileDrawP0RB
.byte >tileDrawP0RC
.byte >tileDrawP0RD
.byte >tileDrawP0RE
.byte >tileDrawP0RF
.byte >tileDrawP1R0 ; Page 1
.byte >tileDrawP1R1
.byte >tileDrawP1R2
.byte >tileDrawP1R3
.byte >tileDrawP1R4
.byte >tileDrawP1R5
.byte >tileDrawP1R6
.byte >tileDrawP1R7
.byte >tileDrawP1R8
.byte >tileDrawP1R9
.byte >tileDrawP1RA
.byte >tileDrawP1RB
.byte >tileDrawP1RC
.byte >tileDrawP1RD
.byte >tileDrawP1RE
.byte >tileDrawP1RF
;-----------------------------------------------------------------------------
mult64H:
.repeat MAX_SPRITE_IFRAMES, Row
.byte >(Row * 64)
.endrep
.endrep
mult64L:
.repeat MAX_SPRITE_IFRAMES, Row
.byte <(Row * 64)
.endrep
.endrep
mult32H:
.repeat 15, Row
.byte >(Row * 32)
.endrep
.endrep
mult32L:
.repeat 15, Row
.byte <(Row * 32)
.endrep
.endrep
mult16:
.repeat 9, Row
@ -73,13 +139,13 @@ masksRight:
.byte %00101010 ; 01 0-BITS-01..0 Purple
.byte %10101010 ; 02 1-BITS-01..0 Blue
maskGreen:
maskGreen:
.byte %00101010, %01010101 ; Green
maskOrange:
maskOrange:
.byte %10101010, %11010101 ; Orange
maskGreenHi:
maskGreenHi:
.byte %00100000, %01000000 ; Green
maskNewTip: