4-color alternate color table
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Charles Mangin
GitHub
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6b7426221a
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b05fa1f56e
82
GREENSCALE.s
82
GREENSCALE.s
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@ -107,7 +107,7 @@ CLOSECMD EQU $CC ; CLOSE command index
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JSR EMULATORCHECK ; check for Virtual II
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JMP STARTANIMATION ; running in VII, go ahead.
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BCS STARTANIMATION ; running in VII, go ahead.
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JSR COLORSWAP ; otherwise, swap the color table
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*** to do
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@ -136,7 +136,7 @@ EACHROW LDA LoLineTableL,X
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EACHPIXEL LDA (IMGLO),Y ; load byte at IMGLO,IMGHI + COLUMN
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TAX ; look up color from lookup table
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LDA COLORTABLE,X
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WHICHTABLE LDA COLORTABLE,X
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STA ($0),Y ; store byte at LINE + COLUMN
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DECCOLUMN DEY ; next column of 2 pixels
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@ -183,19 +183,6 @@ FOUNDVII
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RTS
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**************************************************
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* Swap the color table with one for real
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* hardware/OpenEmulator
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**************************************************
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COLORSWAP
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LDX #$00
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SWAPLOOP LDA ALTCOLORTABLE,X
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STA COLORTABLE,X
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INX
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BNE SWAPLOOP
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RTS
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**************************************************
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* Load "banana" into memory
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*
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@ -261,13 +248,24 @@ HOWMANYFRAMES LDX #$00 ; X=0
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HOWMANYLOOP CMP FRAMESTABLE,X ; compare A to FRAMESTABLE,X
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BEQ HOWMANYSET ; if equal, X frames loaded.
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INX
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CPX $20
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CPX $30 ; out of memory around 41 frames.
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BEQ HOWMANYSET ; max 32 frames
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JMP HOWMANYLOOP ; otherwise, INX, Loop
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HOWMANYSET INX
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STX FRAMES
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RTS
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**************************************************
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* Swap the color table with one for real
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* hardware/OpenEmulator
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* This works because the color tables are $FF bytes long.
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**************************************************
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COLORSWAP
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LDA FOURCOLORTABLEHI ; hi byte of ALTCOLORTABLE address
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STA WHICHTABLE+2 ; put it in the code
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RTS
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**************************************************
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* Data Tables
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@ -296,25 +294,45 @@ COLORTABLE HEX 00,02,06,01,04,05,08,03,0C,09,07,0A,0B,0E,0D,0F ; Low res color
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HEX D0,D2,D6,D1,D4,D5,D8,D3,DC,D9,D7,DA,DB,DE,DD,DF
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HEX F0,F2,F6,F1,F4,F5,F8,F3,FC,F9,F7,FA,FB,FE,FD,FF
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ALTCOLORTABLE HEX 00,02,01,04,08,03,06,0C,09,05,0A,07,0B,0E,0D,0F ; Same, for OpenEmulator, real hardware.
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HEX 20,22,21,24,28,23,26,2C,29,25,2A,27,2B,2E,2D,2F
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HEX 10,12,11,14,18,13,16,1C,19,15,1A,17,1B,1E,1D,1F
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HEX 40,42,41,44,48,43,46,4C,49,45,4A,47,4B,4E,4D,4F
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HEX 80,82,81,84,88,83,86,8C,89,85,8A,87,8B,8E,8D,8F
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HEX 30,32,31,34,38,33,36,3C,39,35,3A,37,3B,3E,3D,3F
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HEX 60,62,61,64,68,63,66,6C,69,65,6A,67,6B,6E,6D,6F
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HEX C0,C2,C1,C4,C8,C3,C6,CC,C9,C5,CA,C7,CB,CE,CD,CF
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HEX 90,92,91,94,98,93,96,9C,99,95,9A,97,9B,9E,9D,9F
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HEX 50,52,51,54,58,53,56,5C,59,55,5A,57,5B,5E,5D,5F
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HEX A0,A2,A1,A4,A8,A3,A6,AC,A9,A5,AA,A7,AB,AE,AD,AF
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HEX 70,72,71,74,78,73,76,7C,79,75,7A,77,7B,7E,7D,7F
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HEX B0,B2,B1,B4,B8,B3,B6,BC,B9,B5,BA,B7,BB,BE,BD,BF
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HEX E0,E2,E1,E4,E8,E3,E6,EC,E9,E5,EA,E7,EB,EE,ED,EF
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HEX D0,D2,D1,D4,D8,D3,D6,DC,D9,D5,DA,D7,DB,DE,DD,DF
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HEX F0,F2,F1,F4,F8,F3,F6,FC,F9,F5,FA,F7,FB,FE,FD,FF
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;ALTCOLORTABLE HEX 00,02,01,04,08,03,06,0C,09,05,0A,07,0B,0E,0D,0F ; Same, for OpenEmulator, real hardware.
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; HEX 20,22,21,24,28,23,26,2C,29,25,2A,27,2B,2E,2D,2F
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; HEX 10,12,11,14,18,13,16,1C,19,15,1A,17,1B,1E,1D,1F
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; HEX 40,42,41,44,48,43,46,4C,49,45,4A,47,4B,4E,4D,4F
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; HEX 80,82,81,84,88,83,86,8C,89,85,8A,87,8B,8E,8D,8F
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; HEX 30,32,31,34,38,33,36,3C,39,35,3A,37,3B,3E,3D,3F
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; HEX 60,62,61,64,68,63,66,6C,69,65,6A,67,6B,6E,6D,6F
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; HEX C0,C2,C1,C4,C8,C3,C6,CC,C9,C5,CA,C7,CB,CE,CD,CF
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; HEX 90,92,91,94,98,93,96,9C,99,95,9A,97,9B,9E,9D,9F
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; HEX 50,52,51,54,58,53,56,5C,59,55,5A,57,5B,5E,5D,5F
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; HEX A0,A2,A1,A4,A8,A3,A6,AC,A9,A5,AA,A7,AB,AE,AD,AF
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; HEX 70,72,71,74,78,73,76,7C,79,75,7A,77,7B,7E,7D,7F
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; HEX B0,B2,B1,B4,B8,B3,B6,BC,B9,B5,BA,B7,BB,BE,BD,BF
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; HEX E0,E2,E1,E4,E8,E3,E6,EC,E9,E5,EA,E7,EB,EE,ED,EF
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; HEX D0,D2,D1,D4,D8,D3,D6,DC,D9,D5,DA,D7,DB,DE,DD,DF
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; HEX F0,F2,F1,F4,F8,F3,F6,FC,F9,F5,FA,F7,FB,FE,FD,FF
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FOURCOLORTABLE HEX 00,02,02,02,02,06,06,06,06,06,06,07,07,07,07,0F ; just 4 colors
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HEX 20,22,22,22,22,26,26,26,26,26,26,27,27,27,27,2F
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HEX 20,22,22,22,22,26,26,26,26,26,26,27,27,27,27,2F
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HEX 20,22,22,22,22,26,26,26,26,26,26,27,27,27,27,2F
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HEX 20,22,22,22,22,26,26,26,26,26,26,27,27,27,27,2F
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HEX 60,62,62,62,62,66,66,66,66,66,66,67,67,67,67,6F
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HEX 60,62,62,62,62,66,66,66,66,66,66,67,67,67,67,6F
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HEX 60,62,62,62,62,66,66,66,66,66,66,67,67,67,67,6F
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HEX 60,62,62,62,62,66,66,66,66,66,66,67,67,67,67,6F
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HEX 60,62,62,62,62,66,66,66,66,66,66,67,67,67,67,6F
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HEX 60,62,62,62,62,66,66,66,66,66,66,67,67,67,67,6F
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HEX 70,72,72,72,72,76,76,76,76,76,76,77,77,77,77,7F
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HEX 70,72,72,72,72,76,76,76,76,76,76,77,77,77,77,7F
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HEX 70,72,72,72,72,76,76,76,76,76,76,77,77,77,77,7F
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HEX 70,72,72,72,72,76,76,76,76,76,76,77,77,77,77,7F
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HEX F0,F2,F2,F2,F2,F6,F6,F6,F6,F6,F6,F7,F7,F7,F7,FF
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FOURCOLORTABLEHI db >FOURCOLORTABLE
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FRAMESTABLE HEX 03,07,0B,0F,12,16,1A,1E,21,25,29,2D,30,34,38,3C ; how many frames transferred? HI byte lookup table
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HEX 3F,43,47,4B,4E,52,56,5A,5D,61,65,69,6C,70,74,78
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HEX 7B,7F,83,87,8A,8E,92,96,99,9D,A1,A5,A8,AC,B0,B4
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**************************************************
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