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60 lines
1.5 KiB
ArmAsm
60 lines
1.5 KiB
ArmAsm
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; Ullrich von Bassewitz, 06.08.1998
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;
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; unsigned char __fastcall__ textcolor (unsigned char color);
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; unsigned char __fastcall__ bgcolor (unsigned char color);
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; unsigned char __fastcall__ bordercolor (unsigned char color);
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;
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.export _textcolor, _bgcolor, _bordercolor
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.include "pcengine.inc"
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_textcolor:
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ldx CHARCOLOR ; get old value
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sta CHARCOLOR ; set new value
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txa
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rts
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_bgcolor:
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ldx BGCOLOR ; get old value
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sta BGCOLOR ; set new value
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asl a
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tay
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stz VCE_ADDR_LO
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stz VCE_ADDR_HI
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lda colors,y
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sta VCE_DATA_LO
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lda colors+1,y
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sta VCE_DATA_HI
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txa
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rts
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_bordercolor:
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lda #0
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txa
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rts
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.export colors
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colors: ; G R B
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.word ((0<<6)+(0<<3)+(0)) ; 0 black
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.word ((7<<6)+(7<<3)+(7)) ; 1 white
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.word ((0<<6)+(7<<3)+(0)) ; 2 red
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.word ((7<<6)+(0<<3)+(7)) ; 3 cyan
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.word ((0<<6)+(5<<3)+(7)) ; 4 violett
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.word ((7<<6)+(0<<3)+(0)) ; 5 green
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.word ((0<<6)+(0<<3)+(7)) ; 6 blue
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.word ((7<<6)+(7<<3)+(0)) ; 7 yellow
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.word ((5<<6)+(7<<3)+(0)) ; 8 orange
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.word ((3<<6)+(4<<3)+(3)) ; 9 brown
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.word ((4<<6)+(7<<3)+(4)) ; a light red
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.word ((3<<6)+(3<<3)+(3)) ; b dark grey
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.word ((4<<6)+(4<<3)+(4)) ; c middle grey
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.word ((7<<6)+(4<<3)+(4)) ; d light green
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.word ((4<<6)+(4<<3)+(7)) ; e light blue
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.word ((6<<6)+(6<<3)+(6)) ; f light gray
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