$F800 PLOT $F819 HLIN $F828 VLIN $F864 COLOR= $F871 SCRN( $F94A HTAB (input in X register) $FAA6 REBOOT $FB1E PDL( $FB39 TEXT $FB40 GR $FB5B VTAB (input in X register) $FB60 BANNER (doesn't work on clones, sometimes crashes a IIgs) $FC58 CLRSCR $FC9C CLREOL $FDOC GETCH (basically deadwaits on the highorder bit of $C000, then hits $C010) $FDED PUTCH (input in A register) (for NORMAL text set the high-order bit) $FD6A GETLIN (output to address $200 and up. with CR termination) (length of string minus the CR is stored in the X register) AppleSoft Graphic, Input, Output and String Instructions ----------------------------------------------------------------- GR ; Method 1 JSR $FB40 ; Sets Lo-Res graphics mode with 4 lines of text ; and clears the graphic area to black ;Method 2 STA $C050 ; Sets Lo-Res graphics mode with 4 lines of text STA $C053 ; but doesn't clear the graphics area STA $C054 STA $C056 ----------------------------------------------------------------- COLOR LDA #N ; Sets the plotting color to N, 0 <= N <= 15 JSR $F864 ----------------------------------------------------------------- PLOT LDY #X ; Lo-Res Plot X (Horizontal) Coordinate (0-39) LDA #Y ; Lo-Res Plot Y (Vertical) Coordinate (0-39) JSR $F800 ----------------------------------------------------------------- HLIN LDA #Y ; Y Coordinate (0-39) LDY #Xr ; Rightmost X Coordinate (0-39) STY $2C ; Store it at H2 LDY #Xl ; Leftmost X Coordinate (0-39) JSR $F819 ----------------------------------------------------------------- VLIN LDY #X ; X Coordinate (0-39) LDA #Yb ; Bottom Y Coordinate (0-39) STA $2C ; Store it at V2 LDA #Yt ; Top Y Coordinate (0-39) JSR $F828 ----------------------------------------------------------------- SCRN LDY #X ; X Coordinate (0-39) LDA #Y ; Y Coordinate (0-39) JSR $F871 ; Result (0-15) in Accumulator ----------------------------------------------------------------- HGR ; Method 1 JSR $F3E2 ; Sets Hi-Res Mode with 4 lines of text, ; and clears the graphics screen ; Method 2 STA $C050 ; Sets Hi-Res Mode with 4 lines of text, STA $C053 ; and doesn't clear the graphics screen STA $C054 STA $C057 LDA #$20 STA $E6 ----------------------------------------------------------------- HGR2 ; Method 1 JSR $F3D8 ; Full Screen Hi-Res Page 2, Clears Screen ; Method 2 STA $C050 ; Full Screen Hi-Res Page 2, Doesn't Clear Screen STA $C052 STA $C055 STA $C057 LDA #$40 STA $E6 ----------------------------------------------------------------- HCOLOR LDA #N ; Select Color N (0-7) JSR $F6EC ----------------------------------------------------------------- HPLOT LDX #Xl ; Low Byte of X Coordinate (0-255) LDY #Xh ; High Byte of X Coordinate (0 or 1) LDA #Y ; Y Coordinate (0-191) JSR $F457 ----------------------------------------------------------------- HPLOT TO LDA #Xl ; Low Byte of X Coordinate (0-255) LDX #Xh ; High Byte of X Coordinate (0 or 1) LDY #Y ; Y Coordinate (0-191) JSR $F53A ----------------------------------------------------------------- PDL(X) LDX #N ; Select Paddle (0-3 on //e and II+; 0-1 on //c) JSR $FB1E ; Result in Y register ----------------------------------------------------------------- ROT LDA #N ; Sets rotation (0-255), immediately before DRAW ; or XDRAW call [See DRAW and XDRAW] ----------------------------------------------------------------- SCALE LDA #N ; Sets SCALE, N = scale value STA $E7 ----------------------------------------------------------------- DRAW LDY #Xh ; High byte of X Coordinate LDX #Xl ; Low byte of X Coordinate LDA #Y ; Y Coordinate JSR $F411 ; Move Hi-Res Cursor LDY #SAH ; High Byte of Actual Shape Address (not table) LDX #SAL ; Low Byte of actual shape address LDA #R ; Set Rotation JSR $F601 ; Execute the DRAW Function ----------------------------------------------------------------- XDRAW LDY #Xh ; High byte of X Coordinate LDX #Xl ; Low byte of X Coordinate LDA #Y ; Y Coordinate JSR $F411 ; Move Hi-Res Cursor LDY #SAH ; High Byte of Actual Shape Address (not table) LDX #SAL ; Low Byte of actual shape address LDA #R ; Set Rotation JSR $F65D ; Execute the XDRAW Function ----------------------------------------------------------------- TEXT ; Method 1 JSR $FB2F ; Sets text mode, normal full-screen format ; Method 2 STA $C051 ; Text mode, window set to existing parameters ----------------------------------------------------------------- HOME JSR $FC58 ; Clears Text Screen, Cursor to upper left ----------------------------------------------------------------- NORMAL JSR $FE84 ; Set Normal-Text Mode ----------------------------------------------------------------- INVERSE JSR $FE80 ; Set Inverse-Text Mode ----------------------------------------------------------------- FLASH LDA #$7F ; Set Flashing-Text Mode JSR $FE86 ----------------------------------------------------------------- PRINT JSR $FD8E ; Prints a carriage-return ----------------------------------------------------------------- PRINT "AB" LDA #$C1 ; Code for letter "A" JSR $FDED ; (COUT) Print "A" LDA #$C2 ; Code for letter "B" JSR $FDED ; (COUT) Print "B" JSR $FD8E ; Print Carriage-Return ----------------------------------------------------------------- GET A$ JSR $FD0C ; Hex code of character is in Accumulator ----------------------------------------------------------------- VTAB LDA #n ; Count STA $25 JSR $FC22 ----------------------------------------------------------------- RND JSR $EFAE LDA $9F ; Get Random Number ----------------------------------------------------------------- INPUT A$ JSR $FD6A ; On return, X register contains length of string ; and string data is at $200 STX addr ; Save Length of string at user address <addr> TXA ; Move Length of Accumulator BEQ L1 ; Jump to L1 if Length is 0 TAY ; Set Y register to Length DEX ; Set X register to length - 1 L2: LDA $200,X ; Get Character from $200 Buffer STA addr,Y ; Save at user address buffer DEX DEY BNE L2 L1: RTS ----------------------------------------------------------------- PRINT A$; LDA addr ; Get string length (first byte) BEQ L2 ; Exit if Length is 0 LDX #1 ; Point to start of string L1: LDA addr,X ; Get Character JSR $FDED ; Print Character INX ; Move To Next Character CPX addr ; Compare X Register to Length of String BCC L1 BEQ L1 L2: RTS -----------------------------------------------------------------