AppleIIAsm-Collection/source/disk1_stdio/T.TXTPUT.SUB.MIN
nathanriggs 82d0e74c1a 0.3.1 updates
some minor bugfixes, directory shuffling, added demo and utility disks
2019-01-26 21:02:17 -05:00

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TXTPUT
PLA
STA RETADR
PLA
STA RETADR+1
PLA
STA :F ; FILL
PLA
STA :Y
PLA
STA :X
LDA ERRCTRL
CMP #1
BEQ :CHKERR
JMP :ERREND
:CHKERR
LDA :X
CMP #40 ; MAX COL + 1
BCS :XOVF
LDA :Y
CMP #24
BCS :YOVF
JMP :ERREND
:XOVF
_ERR :E_SID;:E_XOF;:E_DMP1;:F;#3
JMP :ERREND
:YOVF
_ERR :E_SID;:E_YOF;:E_DMP1;:F;#3
:ERREND
LDA :Y
LDY :X
JSR $F847
LDA :F
STA ($26),Y
LDA RETADR+1
PHA
LDA RETADR
PHA
RTS
:F DS 1
:Y DS 1
:X DS 1
:E_SID ASC "TXTPUT (TPUT MACRO)",00
:E_DMP1 ASC "DUMPING F(1) Y(1) X(1):",00
:E_XOF ASC "X OVERFLOW. X <> MIN/MAX",00
:E_YOF ASC "Y OVERFLOW. Y <> MIN/MAX",00