Commodore Amiga A500 - Page 129

OUTPUT: AL = CHAR READ (if recognized, else 0)
AH = ATTRIBUTE (COLOR) (If recognized, else 0)
All characters above 80h are recognized if the RAM font
vector is other than
0, else not
WRITE CHAR & ATTRIBUTE AT CURSOR POSITION (AH = 09H)
INPUT: BH = ACTIVE DISPLAY PAGE
CX
= NUMBER OF TIMES TO WRlTE
CHARACTER
AL
= CHAR TO WRlTE
BL
= CHARACTER ATTRIBUTE
OUTPUT: None
WRITE CHAR AT CURSOR POSITION (AH = OAH)
INPUT: BH
= ACTIVE DISPLAY PAGE
CX
= NUMBER OF TIMES TO WRlTE
CHARACTER
AL
= CHAR TO WRlTE
BL
= Character Attribute if in a graphics mode
otherwise ignored
OUTPUT: None
SET COLOR PALETTE (AH = OBH)
INPUT: BH
= 0 FOR BACKGROUND COLOR IN BL
1 FOR COLOR SET NUMBER IN BL
BL
= BITS 0-4 IF BH = 0
0 FOR COLOR SET GREENIREDIYELLOW
F BH= 1
1 FOR COLOR SET CYAN/MAGENTNWHITE
IF BH=1
WRlTE DOT (AH = OCH)
INPUT: DX
= ROW NUMBER (MODE DEPENDENT)
CX = COLUMN NUMBER (MODE DEPENDENT)
AL
= COLOR VALUE
OUTPUT: AH
= ?
READ DOT (AH = ODH)
INPUT: DX
= ROW NUMBER (MODE DEPENDENT)
CX = COLUMN NUMBER (MODE DEPENDENT)
OUTPUT: AH
= ?
AL = COLOR VALUE