Home » CEEFAX disks » telesoftware11.adl » 16-12-88/NEWSCAN
16-12-88/NEWSCAN
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » CEEFAX disks » telesoftware11.adl |
| Filename: | 16-12-88/NEWSCAN |
| Read OK: | ✔ |
| File size: | 1E9C bytes |
| Load address: | 0800 |
| Exec address: | 8023 |
File contents
10REM> NEWSCAN 20DIM mcode &200 :REM: machine code at mcode 30savereg=&FC :REM: interrupt accumulator save register 40irq1v=&204 :REM: primary interrupt vector 50bytev=&20A :REM: Osbyte indirection vector 60drb=&FE60 :REM: data register B 70ddrb=&FE62 :REM: data direction register B 80pcr=&FE6C :REM: peripheral control register 90ifr=&FE6D :REM: interrupt flag register 100ier=&FE6E :REM: interrupt enable register 110osbyte=&FFF4 120FOR pass=0 TO 2 STEP 2 130P%=mcode 140[OPT pass 150LDX irq1v \ current primary interrupt vector, low byte 160LDY irq1v+1 \ current primary interrupt vector, high byte 170CPY #interrupt DIV 256 \ compare high byte 180BEQ disable \ restore old vector if altered 190STX oldirq1v \ save original irq1 vector, low byte 200STY oldirq1v+1 \ save original irq1 vector, high byte 210LDX bytev \ Osbyte indirection vector, low byte 220LDY bytev+1 \ Osbyte indirection vector, high byte 230STX oldbytev \ save original Osbyte vector, low byte 240STY oldbytev+1 \ save original Osbyte vector, high byte 250LDX #interrupt MOD 256 \ new irq1 vector, low byte 260LDY #interrupt DIV 256 \ new irq1 vector, high byte 270SEI \ set interrupt disable flag 280STX irq1v \ alter irq1 vector, low byte 290STY irq1v+1 \ alter irq1 vector, high byte 300CLI \ clear interrupt disable flag 310LDX #newscan MOD 256 \ new Osbyte vector, low byte 320LDY #newscan DIV 256 \ new Osbyte vector, high byte 330STX bytev \ alter Osbyte vector, low byte 340STY bytev+1 \ alter Osbyte vector, high byte 350LDA #&98 \ %10011000, ie. enable CB1/2 360STA ier \ interrupt enable register 370LDA pcr \ peripheral control register 380AND #&0F \ AND with %00001111, ie clear bits 4-7 390ORA #&50 \ OR with %01010000, ie. set bits 4 and 6 400STA pcr \ interrupt on +ve transition, CB2 input, DRB to clear 410LDA #&00 \ user port input 420STA ddrb \ data direction register B 430RTS \ return to BASIC 440.disable 450LDA #&18 \ %00011000 ready to clear bits 3 and 4 of ier 460LDX oldirq1v \ original irq1 vector, low byte 470LDY oldirq1v+1 \ original irq1 vector, high byte 480SEI \ set interrupt disable flag 490STA ier \ interrupt enable register 500LDA pcr \ peripheral control register 510AND #&0F \ clear bits 4-7 520STA pcr \ peripheral control register 530STX irq1v \ restore irq1 vector, low byte 540STY irq1v+1 \ restore irq1 vector, high byte 550CLI \ clear interrupt disable flag 560LDX oldbytev \ original Osbyte vector, low byte 570LDY oldbytev+1 \ original Osbyte vector, high byte 580STX bytev \ restore Osbyte vector, low byte 590STY bytev+1 \ restore Osbyte vector, high byte 600RTS \ return to BASIC 610.interrupt 620LDA savereg \ interrupt accumulator save register 630PHA \ and push it on the stack 640LDA ifr \ interrupt flag register 650BPL notuser \ bit 7 is set if VIA-B interrupt 660AND #&18 \ AND with %00011000, ie. test bits 3 and 4 670BEQ notuser \ exit if not CB1 or CB2 680AND #&10 \ AND with %00010000, ie. test CB1 690BNE xpulse \ bit 4 set for an X direction movement 700LDA drb \ Y direction, load data register B 710AND #&04 \ AND with %00000100, ie. test bit 2 720BNE ydown \ if bit 2 is set then Y is going down 730INC ycoord \ Y is going up so increment Y coordinate 740BNE exit \ branch if in the range 1 to 255 750BEQ decy \ if zero then alter to 255 760.ydown 770LDA ycoord \ load Y coordinate 780BEQ exit \ branch if zero because it can't go any lower 790.decy 800DEC ycoord \ reduce Y coordinate by 1 810JMP exit \ restore interrupt accumulator save register and RTI 820.xpulse 830LDA drb \ load data register B 840ROR A \ bit 0 into carry 850BCS xdown \ X is going down if bit 0 is set 860INC xcoord \ X is going up if bit 0 is clear 870BNE exit \ exit if X coordinate is in the range from 1 to 255 880BEQ decx \ if X coordinate = 0 then make it 255 890.xdown 900LDA xcoord \ load X coordinate 910BEQ exit \ if it is zero it can't go any lower 920.decx 930DEC xcoord \ decrease X coordinate by 1 940.exit 950PLA \ pull interrupt accumulator save register off the stack 960STA savereg \ and restore zero page 970RTI \ return from interrupt 980.notuser 990PLA \ pull the interrupt accumulator save register off the stack 1000STA savereg \ restore the zero page address 1010JMP (oldirq1v) \ exit via the original vector 1020.newscan 1030PHP \ push status register 1040CMP #&79 \ is this Osbyte &79? 1050BEQ scan \ if it is branch to new keyboard scan routine 1060CMP #&7A \ is this Osbyte &7A? 1070BEQ scan \ branch if Osbyte &7A 1080.notscan 1090PLP \ restore status register and return to BASIC 1100.oldcode 1110JMP (oldbytev) \ exit via original Osbyte vector 1120.scan 1130PHA \ push the Osbyte code (either &79 or &7A) 1140JSR oldcode \ perform the original Osbyte call 1150CPX #&FF \ key pressed if X <> &FF 1160BEQ notpressed \ branch if key not pressed 1170.pullout 1180PLA \ pull Osbyte code (either &79 or &7A) 1190PLP \ pull the status register 1200RTS \ and return to BASIC 1210.notpressed 1220LDA drb \ load data register B 1230ROL A \ bit 7 of register B into carry 1240BCC rightpress \ carry clear if right button pressed 1250ROL A \ bit 6 into carry 1260BCC centrepress \ bit 6 clear if centre button pressed 1270ROL A \ bit 5 into carry 1280BCC leftpress \ bit 5 clear if left button pressed 1290LDA xcoord \ X coordinate from mouse movement 1300CMP #&88 \ is the X coordinate > &87? 1310BCS rightarrow \ branch if X coordinate is high enough 1320CMP #&78 \ is the X coordinate < &78? 1330BCC leftarrow \ branch if Y coordinate is low enough 1340LDA ycoord \ Y coordinate from mouse movement 1350CMP #&88 \ is the Y coordinate > &87? 1360BCS uparrow \ branch if Y coordinate is high enough 1370CMP #&78 \ is the Y coordinate < &78? 1380BCS pullout \ return to BASIC if it is not 1390LDX down \ simulate a press on the cursor down key 1400BNE resety \ unconditional branch to reset Y coordinate 1410.uparrow 1420LDX up \ simulate a press on the cursor up key 1430.resety 1440LDA #&80 \ reset the Y coordinate to &80 1450STA ycoord 1460BNE pullout \ unconditional branch to return to BASIC 1470.rightarrow 1480LDX right \ simulate a press on the cursor right key 1490BNE resetx \ unconditional branch to reset X coordinate 1500.leftarrow 1510LDX left \ simulate a press on the cursor left key 1520.resetx 1530LDA #&80 \ reset Y coordinate to &80 1540STA xcoord 1550BNE pullout \ unconditional branch to return to BASIC 1560.leftpress 1570LDX leftbutton \ simulate a key press from left mouse button 1580BNE pullout \ unconditional branch to return to BASIC 1590.rightpress 1600LDX rightbutton \ simulate a key press from right mouse button 1610BNE pullout \ unconditional branch to return to BASIC 1620.centrepress 1630LDX centrebutton \ simulate a key press from centre mouse button 1640BNE pullout \ unconditional branch to return to BASIC 1650.rightbutton 1660EQUB &59 \ delete internal key number 1670.centrebutton 1680EQUB &49 \ return internal key number 1690.leftbutton 1700EQUB &69 \ copy internal key number 1710.up 1720EQUB &39 \ cursor up internal key number 1730.down 1740EQUB &29 \ cursor down internal key number 1750.left 1760EQUB &19 \ cursor left internal key number 1770.right 1780EQUB &79 \ cursor right internal key number 1790.oldirq1v 1800EQUW &00 \ original irq1 vector 1810.oldbytev 1820EQUW &00 \ original Osbyte indirection vector 1830.xcoord 1840EQUB &80 \ mouse X coordinate 0-255 1850.ycoord 1860EQUB &80 \ mouse Y coordinate 0-255 1870.lastbyte 1880] 1890NEXT 1900CALL mcode :REM: enable new code 1910MODE7 1920mouse$=CHR$141+CHR$132+CHR$157+CHR$131+"Press keyboard or move the mouse "+CHR$156 1930PRINTTAB(0,1)mouse$ 1940PRINTTAB(0,2)mouse$ 1950PRINTTAB(10,6)"Bytes used = &";~(lastbyte-mcode) 1960ON ERROR GOTO 2100 1970VDU23,1,0;0;0;0; 1980REPEAT 1990PRINTTAB(10,10)"X = &";~?H%;" " 2000PRINTTAB(20,10)"Y = &";~?V%;" " 2010A%=&79 2020X%=16 2030answer=(USR(osbyte) AND &FF00)DIV &100 2040PRINTTAB(9,15)"Osbyte &79, X = &";~answer;" " 2050A%=&7A 2060X%=0 2070answer=(USR(osbyte) AND &FF00)DIV &100 2080PRINTTAB(9,20)"Osbyte &7A, X = &";~answer;" " 2090UNTIL FALSE 2100CALL mcode :REM: disable new code 2110VDU23,1,1;0;0;0;31,0,23 2120END
�> NEWSCAN *� mcode &200 :�: machine code at mcode 7savereg=&FC :�: interrupt accumulator save register (+irq1v=&204 :�: primary interrupt vector 2,bytev=&20A :�: Osbyte indirection vector <!drb=&FE60 :�: data register B F,ddrb=&FE62 :�: data direction register B P-pcr=&FE6C :�: peripheral control register Z)ifr=&FE6D :�: interrupt flag register d+ier=&FE6E :�: interrupt enable register nosbyte=&FFF4 x� pass=0 � 2 � 2 � P%=mcode � [OPT pass �:LDX irq1v \ current primary interrupt vector, low byte �=LDY irq1v+1 \ current primary interrupt vector, high byte �,CPY #interrupt � 256 \ compare high byte �/BEQ disable \ restore old vector if altered �6STX oldirq1v \ save original irq1 vector, low byte �9STY oldirq1v+1 \ save original irq1 vector, high byte �3LDX bytev \ Osbyte indirection vector, low byte �6LDY bytev+1 \ Osbyte indirection vector, high byte �8STX oldbytev \ save original Osbyte vector, low byte �;STY oldbytev+1 \ save original Osbyte vector, high byte �4LDX #interrupt � 256 \ new irq1 vector, low byte 5LDY #interrupt � 256 \ new irq1 vector, high byte $SEI \ set interrupt disable flag +STX irq1v \ alter irq1 vector, low byte ".STY irq1v+1 \ alter irq1 vector, high byte ,&CLI \ clear interrupt disable flag 64LDX #newscan � 256 \ new Osbyte vector, low byte @5LDY #newscan � 256 \ new Osbyte vector, high byte J-STX bytev \ alter Osbyte vector, low byte T0STY bytev+1 \ alter Osbyte vector, high byte ^*LDA #&98 \ %10011000, ie. enable CB1/2 h'STA ier \ interrupt enable register r)LDA pcr \ peripheral control register |0� #&0F \ � with %00001111, ie clear bits 4-7 �4�A #&50 \ � with %01010000, ie. set bits 4 and 6 �BSTA pcr \ interrupt on +ve transition, CB2 input, DRB to clear � LDA #&00 \ user port input �(STA ddrb \ data direction register B �RTS \ return to BASIC � .disable �;LDA #&18 \ %00011000 ready to clear bits 3 and 4 of ier �1LDX oldirq1v \ original irq1 vector, low byte �4LDY oldirq1v+1 \ original irq1 vector, high byte �$SEI \ set interrupt disable flag �'STA ier \ interrupt enable register �)LDA pcr \ peripheral control register �� #&0F \ clear bits 4-7 )STA pcr \ peripheral control register -STX irq1v \ restore irq1 vector, low byte 0STY irq1v+1 \ restore irq1 vector, high byte &&CLI \ clear interrupt disable flag 03LDX oldbytev \ original Osbyte vector, low byte :6LDY oldbytev+1 \ original Osbyte vector, high byte D/STX bytev \ restore Osbyte vector, low byte N2STY bytev+1 \ restore Osbyte vector, high byte XRTS \ return to BASIC b.interrupt l5LDA savereg \ interrupt accumulator save register v"PHA \ and push it on the stack �%LDA ifr \ interrupt flag register �1BPL notuser \ bit 7 is set if VIA-B interrupt �4� #&18 \ � with %00011000, ie. test bits 3 and 4 �(BEQ notuser \ exit if not CB1 or CB2 �+� #&10 \ � with %00010000, ie. test CB1 �6BNE xpulse \ bit 4 set for an X direction movement �/LDA drb \ Y direction, load data register B �-� #&04 \ � with %00000100, ie. test bit 2 �4BNE ydown \ if bit 2 is set then Y is going down �8INC ycoord \ Y is going up so increment Y coordinate �.BNE exit \ branch if in the range 1 to 255 �(BEQ decy \ if zero then alter to 255 � .ydown "LDA ycoord \ load Y coordinate ;BEQ exit \ branch if zero because it can't go any lower .decy )DEC ycoord \ reduce Y coordinate by 1 *BJMP exit \ restore interrupt accumulator save register and RTI 4 .xpulse >"LDA drb \ load data register B H ROR A \ bit 0 into carry R/BCS xdown \ X is going down if bit 0 is set \0INC xcoord \ X is going up if bit 0 is clear fABNE exit \ exit if X coordinate is in the range from 1 to 255 p3BEQ decx \ if X coordinate = 0 then make it 255 z .xdown �"LDA xcoord \ load X coordinate �2BEQ exit \ if it is zero it can't go any lower � .decx �+DEC xcoord \ decrease X coordinate by 1 � .exit �@PLA \ pull interrupt accumulator save register off the stack �'STA savereg \ and restore zero page � RTI \ return from interrupt � .notuser �DPLA \ pull the interrupt accumulator save register off the stack �/STA savereg \ restore the zero page address �1JMP (oldirq1v) \ exit via the original vector � .newscan PHP \ push status register "CMP #&79 \ is this Osbyte &79? ;BEQ scan \ if it is branch to new keyboard scan routine $"CMP #&7A \ is this Osbyte &7A? .#BEQ scan \ branch if Osbyte &7A 8 .notscan B5PLP \ restore status register and return to BASIC L .oldcode V4JMP (oldbytev) \ exit via original Osbyte vector ` .scan j2PHA \ push the Osbyte code (either &79 or &7A) t2JSR oldcode \ perform the original Osbyte call ~&CPX #&FF \ key pressed if X <> &FF �.BEQ notpressed \ branch if key not pressed � .pullout �.PLA \ pull Osbyte code (either &79 or &7A) �"PLP \ pull the status register � RTS \ and return to BASIC �.notpressed �"LDA drb \ load data register B �*ROL A \ bit 7 of register B into carry �8BCC rightpress \ carry clear if right button pressed � ROL A \ bit 6 into carry �:BCC centrepress \ bit 6 clear if centre button pressed � ROL A \ bit 5 into carry 6BCC leftpress \ bit 5 clear if left button pressed 1LDA xcoord \ X coordinate from mouse movement )CMP #&88 \ is the X coordinate > &87? :BCS rightarrow \ branch if X coordinate is high enough ()CMP #&78 \ is the X coordinate < &78? 28BCC leftarrow \ branch if Y coordinate is low enough <1LDA ycoord \ Y coordinate from mouse movement F)CMP #&88 \ is the Y coordinate > &87? P7BCS uparrow \ branch if Y coordinate is high enough Z)CMP #&78 \ is the Y coordinate < &78? d.BCS pullout \ return to BASIC if it is not n6LDX down \ simulate a press on the cursor down key x;BNE resety \ unconditional branch to reset Y coordinate � .uparrow �2LDX up \ simulate a press on the cursor up key � .resety �,LDA #&80 \ reset the Y coordinate to &80 �STA ycoord �9BNE pullout \ unconditional branch to return to BASIC �.rightarrow �8LDX right \ simulate a press on the cursor right key �;BNE resetx \ unconditional branch to reset X coordinate �.leftarrow �6LDX left \ simulate a press on the cursor left key � .resetx �(LDA #&80 \ reset Y coordinate to &80 STA xcoord 9BNE pullout \ unconditional branch to return to BASIC .leftpress "@LDX leftbutton \ simulate a key press from left mouse button ,9BNE pullout \ unconditional branch to return to BASIC 6.rightpress @BLDX rightbutton \ simulate a key press from right mouse button J9BNE pullout \ unconditional branch to return to BASIC T.centrepress ^DLDX centrebutton \ simulate a key press from centre mouse button h9BNE pullout \ unconditional branch to return to BASIC r.rightbutton |)EQUB &59 \ delete internal key number �.centrebutton �)EQUB &49 \ return internal key number �.leftbutton �'EQUB &69 \ copy internal key number �.up �,EQUB &39 \ cursor up internal key number � .down �.EQUB &29 \ cursor down internal key number � .left �.EQUB &19 \ cursor left internal key number � .right �/EQUB &79 \ cursor right internal key number � .oldirq1v #EQUW &00 \ original irq1 vector .oldbytev 1EQUW &00 \ original Osbyte indirection vector & .xcoord 0'EQUB &80 \ mouse X coordinate 0-255 : .ycoord D'EQUB &80 \ mouse Y coordinate 0-255 N .lastbyte X] b� l � mcode :�: enable new code v�7 �Hmouse$=�141+�132+�157+�131+"Press keyboard or move the mouse "+�156 ��0,1)mouse$ ��0,2)mouse$ �-�10,6)"Bytes used = &";~(lastbyte-mcode) �� � � �TtH ��23,1,0;0;0;0; �� � �10,10)"X = &";~?H%;" " � �20,10)"Y = &";~?V%;" " � A%=&79 � X%=16 �$answer=(�(osbyte) � &FF00)� &100 �*�9,15)"Osbyte &79, X = &";~answer;" " A%=&7A X%=0 $answer=(�(osbyte) � &FF00)� &100 *�9,20)"Osbyte &7A, X = &";~answer;" " *� � 4 � mcode :�: disable new code >�23,1,1;0;0;0;31,0,23 H� �
00000000 0d 00 0a 0e f4 3e 20 4e 45 57 53 43 41 4e 0d 00 |.....> NEWSCAN..| 00000010 14 2a de 20 6d 63 6f 64 65 20 26 32 30 30 20 3a |.*. mcode &200 :| 00000020 f4 3a 20 6d 61 63 68 69 6e 65 20 63 6f 64 65 20 |.: machine code | 00000030 61 74 20 6d 63 6f 64 65 0d 00 1e 37 73 61 76 65 |at mcode...7save| 00000040 72 65 67 3d 26 46 43 20 3a f4 3a 20 69 6e 74 65 |reg=&FC :.: inte| 00000050 72 72 75 70 74 20 61 63 63 75 6d 75 6c 61 74 6f |rrupt accumulato| 00000060 72 20 73 61 76 65 20 72 65 67 69 73 74 65 72 0d |r save register.| 00000070 00 28 2b 69 72 71 31 76 3d 26 32 30 34 20 3a f4 |.(+irq1v=&204 :.| 00000080 3a 20 70 72 69 6d 61 72 79 20 69 6e 74 65 72 72 |: primary interr| 00000090 75 70 74 20 76 65 63 74 6f 72 0d 00 32 2c 62 79 |upt vector..2,by| 000000a0 74 65 76 3d 26 32 30 41 20 3a f4 3a 20 4f 73 62 |tev=&20A :.: Osb| 000000b0 79 74 65 20 69 6e 64 69 72 65 63 74 69 6f 6e 20 |yte indirection | 000000c0 76 65 63 74 6f 72 0d 00 3c 21 64 72 62 3d 26 46 |vector..<!drb=&F| 000000d0 45 36 30 20 3a f4 3a 20 64 61 74 61 20 72 65 67 |E60 :.: data reg| 000000e0 69 73 74 65 72 20 42 0d 00 46 2c 64 64 72 62 3d |ister B..F,ddrb=| 000000f0 26 46 45 36 32 20 3a f4 3a 20 64 61 74 61 20 64 |&FE62 :.: data d| 00000100 69 72 65 63 74 69 6f 6e 20 72 65 67 69 73 74 65 |irection registe| 00000110 72 20 42 0d 00 50 2d 70 63 72 3d 26 46 45 36 43 |r B..P-pcr=&FE6C| 00000120 20 3a f4 3a 20 70 65 72 69 70 68 65 72 61 6c 20 | :.: peripheral | 00000130 63 6f 6e 74 72 6f 6c 20 72 65 67 69 73 74 65 72 |control register| 00000140 0d 00 5a 29 69 66 72 3d 26 46 45 36 44 20 3a f4 |..Z)ifr=&FE6D :.| 00000150 3a 20 69 6e 74 65 72 72 75 70 74 20 66 6c 61 67 |: interrupt flag| 00000160 20 72 65 67 69 73 74 65 72 0d 00 64 2b 69 65 72 | register..d+ier| 00000170 3d 26 46 45 36 45 20 3a f4 3a 20 69 6e 74 65 72 |=&FE6E :.: inter| 00000180 72 75 70 74 20 65 6e 61 62 6c 65 20 72 65 67 69 |rupt enable regi| 00000190 73 74 65 72 0d 00 6e 10 6f 73 62 79 74 65 3d 26 |ster..n.osbyte=&| 000001a0 46 46 46 34 0d 00 78 14 e3 20 70 61 73 73 3d 30 |FFF4..x.. pass=0| 000001b0 20 b8 20 32 20 88 20 32 0d 00 82 0c 50 25 3d 6d | . 2 . 2....P%=m| 000001c0 63 6f 64 65 0d 00 8c 0d 5b 4f 50 54 20 70 61 73 |code....[OPT pas| 000001d0 73 0d 00 96 3a 4c 44 58 20 69 72 71 31 76 20 5c |s...:LDX irq1v \| 000001e0 20 63 75 72 72 65 6e 74 20 70 72 69 6d 61 72 79 | current primary| 000001f0 20 69 6e 74 65 72 72 75 70 74 20 76 65 63 74 6f | interrupt vecto| 00000200 72 2c 20 6c 6f 77 20 62 79 74 65 0d 00 a0 3d 4c |r, low byte...=L| 00000210 44 59 20 69 72 71 31 76 2b 31 20 5c 20 63 75 72 |DY irq1v+1 \ cur| 00000220 72 65 6e 74 20 70 72 69 6d 61 72 79 20 69 6e 74 |rent primary int| 00000230 65 72 72 75 70 74 20 76 65 63 74 6f 72 2c 20 68 |errupt vector, h| 00000240 69 67 68 20 62 79 74 65 0d 00 aa 2c 43 50 59 20 |igh byte...,CPY | 00000250 23 69 6e 74 65 72 72 75 70 74 20 81 20 32 35 36 |#interrupt . 256| 00000260 20 5c 20 63 6f 6d 70 61 72 65 20 68 69 67 68 20 | \ compare high | 00000270 62 79 74 65 0d 00 b4 2f 42 45 51 20 64 69 73 61 |byte.../BEQ disa| 00000280 62 6c 65 20 5c 20 72 65 73 74 6f 72 65 20 6f 6c |ble \ restore ol| 00000290 64 20 76 65 63 74 6f 72 20 69 66 20 61 6c 74 65 |d vector if alte| 000002a0 72 65 64 0d 00 be 36 53 54 58 20 6f 6c 64 69 72 |red...6STX oldir| 000002b0 71 31 76 20 5c 20 73 61 76 65 20 6f 72 69 67 69 |q1v \ save origi| 000002c0 6e 61 6c 20 69 72 71 31 20 76 65 63 74 6f 72 2c |nal irq1 vector,| 000002d0 20 6c 6f 77 20 62 79 74 65 0d 00 c8 39 53 54 59 | low byte...9STY| 000002e0 20 6f 6c 64 69 72 71 31 76 2b 31 20 5c 20 73 61 | oldirq1v+1 \ sa| 000002f0 76 65 20 6f 72 69 67 69 6e 61 6c 20 69 72 71 31 |ve original irq1| 00000300 20 76 65 63 74 6f 72 2c 20 68 69 67 68 20 62 79 | vector, high by| 00000310 74 65 0d 00 d2 33 4c 44 58 20 62 79 74 65 76 20 |te...3LDX bytev | 00000320 5c 20 4f 73 62 79 74 65 20 69 6e 64 69 72 65 63 |\ Osbyte indirec| 00000330 74 69 6f 6e 20 76 65 63 74 6f 72 2c 20 6c 6f 77 |tion vector, low| 00000340 20 62 79 74 65 0d 00 dc 36 4c 44 59 20 62 79 74 | byte...6LDY byt| 00000350 65 76 2b 31 20 5c 20 4f 73 62 79 74 65 20 69 6e |ev+1 \ Osbyte in| 00000360 64 69 72 65 63 74 69 6f 6e 20 76 65 63 74 6f 72 |direction vector| 00000370 2c 20 68 69 67 68 20 62 79 74 65 0d 00 e6 38 53 |, high byte...8S| 00000380 54 58 20 6f 6c 64 62 79 74 65 76 20 5c 20 73 61 |TX oldbytev \ sa| 00000390 76 65 20 6f 72 69 67 69 6e 61 6c 20 4f 73 62 79 |ve original Osby| 000003a0 74 65 20 76 65 63 74 6f 72 2c 20 6c 6f 77 20 62 |te vector, low b| 000003b0 79 74 65 0d 00 f0 3b 53 54 59 20 6f 6c 64 62 79 |yte...;STY oldby| 000003c0 74 65 76 2b 31 20 5c 20 73 61 76 65 20 6f 72 69 |tev+1 \ save ori| 000003d0 67 69 6e 61 6c 20 4f 73 62 79 74 65 20 76 65 63 |ginal Osbyte vec| 000003e0 74 6f 72 2c 20 68 69 67 68 20 62 79 74 65 0d 00 |tor, high byte..| 000003f0 fa 34 4c 44 58 20 23 69 6e 74 65 72 72 75 70 74 |.4LDX #interrupt| 00000400 20 83 20 32 35 36 20 5c 20 6e 65 77 20 69 72 71 | . 256 \ new irq| 00000410 31 20 76 65 63 74 6f 72 2c 20 6c 6f 77 20 62 79 |1 vector, low by| 00000420 74 65 0d 01 04 35 4c 44 59 20 23 69 6e 74 65 72 |te...5LDY #inter| 00000430 72 75 70 74 20 81 20 32 35 36 20 5c 20 6e 65 77 |rupt . 256 \ new| 00000440 20 69 72 71 31 20 76 65 63 74 6f 72 2c 20 68 69 | irq1 vector, hi| 00000450 67 68 20 62 79 74 65 0d 01 0e 24 53 45 49 20 5c |gh byte...$SEI \| 00000460 20 73 65 74 20 69 6e 74 65 72 72 75 70 74 20 64 | set interrupt d| 00000470 69 73 61 62 6c 65 20 66 6c 61 67 0d 01 18 2b 53 |isable flag...+S| 00000480 54 58 20 69 72 71 31 76 20 5c 20 61 6c 74 65 72 |TX irq1v \ alter| 00000490 20 69 72 71 31 20 76 65 63 74 6f 72 2c 20 6c 6f | irq1 vector, lo| 000004a0 77 20 62 79 74 65 0d 01 22 2e 53 54 59 20 69 72 |w byte..".STY ir| 000004b0 71 31 76 2b 31 20 5c 20 61 6c 74 65 72 20 69 72 |q1v+1 \ alter ir| 000004c0 71 31 20 76 65 63 74 6f 72 2c 20 68 69 67 68 20 |q1 vector, high | 000004d0 62 79 74 65 0d 01 2c 26 43 4c 49 20 5c 20 63 6c |byte..,&CLI \ cl| 000004e0 65 61 72 20 69 6e 74 65 72 72 75 70 74 20 64 69 |ear interrupt di| 000004f0 73 61 62 6c 65 20 66 6c 61 67 0d 01 36 34 4c 44 |sable flag..64LD| 00000500 58 20 23 6e 65 77 73 63 61 6e 20 83 20 32 35 36 |X #newscan . 256| 00000510 20 5c 20 6e 65 77 20 4f 73 62 79 74 65 20 76 65 | \ new Osbyte ve| 00000520 63 74 6f 72 2c 20 6c 6f 77 20 62 79 74 65 0d 01 |ctor, low byte..| 00000530 40 35 4c 44 59 20 23 6e 65 77 73 63 61 6e 20 81 |@5LDY #newscan .| 00000540 20 32 35 36 20 5c 20 6e 65 77 20 4f 73 62 79 74 | 256 \ new Osbyt| 00000550 65 20 76 65 63 74 6f 72 2c 20 68 69 67 68 20 62 |e vector, high b| 00000560 79 74 65 0d 01 4a 2d 53 54 58 20 62 79 74 65 76 |yte..J-STX bytev| 00000570 20 5c 20 61 6c 74 65 72 20 4f 73 62 79 74 65 20 | \ alter Osbyte | 00000580 76 65 63 74 6f 72 2c 20 6c 6f 77 20 62 79 74 65 |vector, low byte| 00000590 0d 01 54 30 53 54 59 20 62 79 74 65 76 2b 31 20 |..T0STY bytev+1 | 000005a0 5c 20 61 6c 74 65 72 20 4f 73 62 79 74 65 20 76 |\ alter Osbyte v| 000005b0 65 63 74 6f 72 2c 20 68 69 67 68 20 62 79 74 65 |ector, high byte| 000005c0 0d 01 5e 2a 4c 44 41 20 23 26 39 38 20 5c 20 25 |..^*LDA #&98 \ %| 000005d0 31 30 30 31 31 30 30 30 2c 20 69 65 2e 20 65 6e |10011000, ie. en| 000005e0 61 62 6c 65 20 43 42 31 2f 32 0d 01 68 27 53 54 |able CB1/2..h'ST| 000005f0 41 20 69 65 72 20 5c 20 69 6e 74 65 72 72 75 70 |A ier \ interrup| 00000600 74 20 65 6e 61 62 6c 65 20 72 65 67 69 73 74 65 |t enable registe| 00000610 72 0d 01 72 29 4c 44 41 20 70 63 72 20 5c 20 70 |r..r)LDA pcr \ p| 00000620 65 72 69 70 68 65 72 61 6c 20 63 6f 6e 74 72 6f |eripheral contro| 00000630 6c 20 72 65 67 69 73 74 65 72 0d 01 7c 30 80 20 |l register..|0. | 00000640 23 26 30 46 20 5c 20 80 20 77 69 74 68 20 25 30 |#&0F \ . with %0| 00000650 30 30 30 31 31 31 31 2c 20 69 65 20 63 6c 65 61 |0001111, ie clea| 00000660 72 20 62 69 74 73 20 34 2d 37 0d 01 86 34 84 41 |r bits 4-7...4.A| 00000670 20 23 26 35 30 20 5c 20 84 20 77 69 74 68 20 25 | #&50 \ . with %| 00000680 30 31 30 31 30 30 30 30 2c 20 69 65 2e 20 73 65 |01010000, ie. se| 00000690 74 20 62 69 74 73 20 34 20 61 6e 64 20 36 0d 01 |t bits 4 and 6..| 000006a0 90 42 53 54 41 20 70 63 72 20 5c 20 69 6e 74 65 |.BSTA pcr \ inte| 000006b0 72 72 75 70 74 20 6f 6e 20 2b 76 65 20 74 72 61 |rrupt on +ve tra| 000006c0 6e 73 69 74 69 6f 6e 2c 20 43 42 32 20 69 6e 70 |nsition, CB2 inp| 000006d0 75 74 2c 20 44 52 42 20 74 6f 20 63 6c 65 61 72 |ut, DRB to clear| 000006e0 0d 01 9a 1e 4c 44 41 20 23 26 30 30 20 5c 20 75 |....LDA #&00 \ u| 000006f0 73 65 72 20 70 6f 72 74 20 69 6e 70 75 74 0d 01 |ser port input..| 00000700 a4 28 53 54 41 20 64 64 72 62 20 5c 20 64 61 74 |.(STA ddrb \ dat| 00000710 61 20 64 69 72 65 63 74 69 6f 6e 20 72 65 67 69 |a direction regi| 00000720 73 74 65 72 20 42 0d 01 ae 19 52 54 53 20 5c 20 |ster B....RTS \ | 00000730 72 65 74 75 72 6e 20 74 6f 20 42 41 53 49 43 0d |return to BASIC.| 00000740 01 b8 0c 2e 64 69 73 61 62 6c 65 0d 01 c2 3b 4c |....disable...;L| 00000750 44 41 20 23 26 31 38 20 5c 20 25 30 30 30 31 31 |DA #&18 \ %00011| 00000760 30 30 30 20 72 65 61 64 79 20 74 6f 20 63 6c 65 |000 ready to cle| 00000770 61 72 20 62 69 74 73 20 33 20 61 6e 64 20 34 20 |ar bits 3 and 4 | 00000780 6f 66 20 69 65 72 0d 01 cc 31 4c 44 58 20 6f 6c |of ier...1LDX ol| 00000790 64 69 72 71 31 76 20 5c 20 6f 72 69 67 69 6e 61 |dirq1v \ origina| 000007a0 6c 20 69 72 71 31 20 76 65 63 74 6f 72 2c 20 6c |l irq1 vector, l| 000007b0 6f 77 20 62 79 74 65 0d 01 d6 34 4c 44 59 20 6f |ow byte...4LDY o| 000007c0 6c 64 69 72 71 31 76 2b 31 20 5c 20 6f 72 69 67 |ldirq1v+1 \ orig| 000007d0 69 6e 61 6c 20 69 72 71 31 20 76 65 63 74 6f 72 |inal irq1 vector| 000007e0 2c 20 68 69 67 68 20 62 79 74 65 0d 01 e0 24 53 |, high byte...$S| 000007f0 45 49 20 5c 20 73 65 74 20 69 6e 74 65 72 72 75 |EI \ set interru| 00000800 70 74 20 64 69 73 61 62 6c 65 20 66 6c 61 67 0d |pt disable flag.| 00000810 01 ea 27 53 54 41 20 69 65 72 20 5c 20 69 6e 74 |..'STA ier \ int| 00000820 65 72 72 75 70 74 20 65 6e 61 62 6c 65 20 72 65 |errupt enable re| 00000830 67 69 73 74 65 72 0d 01 f4 29 4c 44 41 20 70 63 |gister...)LDA pc| 00000840 72 20 5c 20 70 65 72 69 70 68 65 72 61 6c 20 63 |r \ peripheral c| 00000850 6f 6e 74 72 6f 6c 20 72 65 67 69 73 74 65 72 0d |ontrol register.| 00000860 01 fe 1b 80 20 23 26 30 46 20 5c 20 63 6c 65 61 |.... #&0F \ clea| 00000870 72 20 62 69 74 73 20 34 2d 37 0d 02 08 29 53 54 |r bits 4-7...)ST| 00000880 41 20 70 63 72 20 5c 20 70 65 72 69 70 68 65 72 |A pcr \ peripher| 00000890 61 6c 20 63 6f 6e 74 72 6f 6c 20 72 65 67 69 73 |al control regis| 000008a0 74 65 72 0d 02 12 2d 53 54 58 20 69 72 71 31 76 |ter...-STX irq1v| 000008b0 20 5c 20 72 65 73 74 6f 72 65 20 69 72 71 31 20 | \ restore irq1 | 000008c0 76 65 63 74 6f 72 2c 20 6c 6f 77 20 62 79 74 65 |vector, low byte| 000008d0 0d 02 1c 30 53 54 59 20 69 72 71 31 76 2b 31 20 |...0STY irq1v+1 | 000008e0 5c 20 72 65 73 74 6f 72 65 20 69 72 71 31 20 76 |\ restore irq1 v| 000008f0 65 63 74 6f 72 2c 20 68 69 67 68 20 62 79 74 65 |ector, high byte| 00000900 0d 02 26 26 43 4c 49 20 5c 20 63 6c 65 61 72 20 |..&&CLI \ clear | 00000910 69 6e 74 65 72 72 75 70 74 20 64 69 73 61 62 6c |interrupt disabl| 00000920 65 20 66 6c 61 67 0d 02 30 33 4c 44 58 20 6f 6c |e flag..03LDX ol| 00000930 64 62 79 74 65 76 20 5c 20 6f 72 69 67 69 6e 61 |dbytev \ origina| 00000940 6c 20 4f 73 62 79 74 65 20 76 65 63 74 6f 72 2c |l Osbyte vector,| 00000950 20 6c 6f 77 20 62 79 74 65 0d 02 3a 36 4c 44 59 | low byte..:6LDY| 00000960 20 6f 6c 64 62 79 74 65 76 2b 31 20 5c 20 6f 72 | oldbytev+1 \ or| 00000970 69 67 69 6e 61 6c 20 4f 73 62 79 74 65 20 76 65 |iginal Osbyte ve| 00000980 63 74 6f 72 2c 20 68 69 67 68 20 62 79 74 65 0d |ctor, high byte.| 00000990 02 44 2f 53 54 58 20 62 79 74 65 76 20 5c 20 72 |.D/STX bytev \ r| 000009a0 65 73 74 6f 72 65 20 4f 73 62 79 74 65 20 76 65 |estore Osbyte ve| 000009b0 63 74 6f 72 2c 20 6c 6f 77 20 62 79 74 65 0d 02 |ctor, low byte..| 000009c0 4e 32 53 54 59 20 62 79 74 65 76 2b 31 20 5c 20 |N2STY bytev+1 \ | 000009d0 72 65 73 74 6f 72 65 20 4f 73 62 79 74 65 20 76 |restore Osbyte v| 000009e0 65 63 74 6f 72 2c 20 68 69 67 68 20 62 79 74 65 |ector, high byte| 000009f0 0d 02 58 19 52 54 53 20 5c 20 72 65 74 75 72 6e |..X.RTS \ return| 00000a00 20 74 6f 20 42 41 53 49 43 0d 02 62 0e 2e 69 6e | to BASIC..b..in| 00000a10 74 65 72 72 75 70 74 0d 02 6c 35 4c 44 41 20 73 |terrupt..l5LDA s| 00000a20 61 76 65 72 65 67 20 5c 20 69 6e 74 65 72 72 75 |avereg \ interru| 00000a30 70 74 20 61 63 63 75 6d 75 6c 61 74 6f 72 20 73 |pt accumulator s| 00000a40 61 76 65 20 72 65 67 69 73 74 65 72 0d 02 76 22 |ave register..v"| 00000a50 50 48 41 20 5c 20 61 6e 64 20 70 75 73 68 20 69 |PHA \ and push i| 00000a60 74 20 6f 6e 20 74 68 65 20 73 74 61 63 6b 0d 02 |t on the stack..| 00000a70 80 25 4c 44 41 20 69 66 72 20 5c 20 69 6e 74 65 |.%LDA ifr \ inte| 00000a80 72 72 75 70 74 20 66 6c 61 67 20 72 65 67 69 73 |rrupt flag regis| 00000a90 74 65 72 0d 02 8a 31 42 50 4c 20 6e 6f 74 75 73 |ter...1BPL notus| 00000aa0 65 72 20 5c 20 62 69 74 20 37 20 69 73 20 73 65 |er \ bit 7 is se| 00000ab0 74 20 69 66 20 56 49 41 2d 42 20 69 6e 74 65 72 |t if VIA-B inter| 00000ac0 72 75 70 74 0d 02 94 34 80 20 23 26 31 38 20 5c |rupt...4. #&18 \| 00000ad0 20 80 20 77 69 74 68 20 25 30 30 30 31 31 30 30 | . with %0001100| 00000ae0 30 2c 20 69 65 2e 20 74 65 73 74 20 62 69 74 73 |0, ie. test bits| 00000af0 20 33 20 61 6e 64 20 34 0d 02 9e 28 42 45 51 20 | 3 and 4...(BEQ | 00000b00 6e 6f 74 75 73 65 72 20 5c 20 65 78 69 74 20 69 |notuser \ exit i| 00000b10 66 20 6e 6f 74 20 43 42 31 20 6f 72 20 43 42 32 |f not CB1 or CB2| 00000b20 0d 02 a8 2b 80 20 23 26 31 30 20 5c 20 80 20 77 |...+. #&10 \ . w| 00000b30 69 74 68 20 25 30 30 30 31 30 30 30 30 2c 20 69 |ith %00010000, i| 00000b40 65 2e 20 74 65 73 74 20 43 42 31 0d 02 b2 36 42 |e. test CB1...6B| 00000b50 4e 45 20 78 70 75 6c 73 65 20 5c 20 62 69 74 20 |NE xpulse \ bit | 00000b60 34 20 73 65 74 20 66 6f 72 20 61 6e 20 58 20 64 |4 set for an X d| 00000b70 69 72 65 63 74 69 6f 6e 20 6d 6f 76 65 6d 65 6e |irection movemen| 00000b80 74 0d 02 bc 2f 4c 44 41 20 64 72 62 20 5c 20 59 |t.../LDA drb \ Y| 00000b90 20 64 69 72 65 63 74 69 6f 6e 2c 20 6c 6f 61 64 | direction, load| 00000ba0 20 64 61 74 61 20 72 65 67 69 73 74 65 72 20 42 | data register B| 00000bb0 0d 02 c6 2d 80 20 23 26 30 34 20 5c 20 80 20 77 |...-. #&04 \ . w| 00000bc0 69 74 68 20 25 30 30 30 30 30 31 30 30 2c 20 69 |ith %00000100, i| 00000bd0 65 2e 20 74 65 73 74 20 62 69 74 20 32 0d 02 d0 |e. test bit 2...| 00000be0 34 42 4e 45 20 79 64 6f 77 6e 20 5c 20 69 66 20 |4BNE ydown \ if | 00000bf0 62 69 74 20 32 20 69 73 20 73 65 74 20 74 68 65 |bit 2 is set the| 00000c00 6e 20 59 20 69 73 20 67 6f 69 6e 67 20 64 6f 77 |n Y is going dow| 00000c10 6e 0d 02 da 38 49 4e 43 20 79 63 6f 6f 72 64 20 |n...8INC ycoord | 00000c20 5c 20 59 20 69 73 20 67 6f 69 6e 67 20 75 70 20 |\ Y is going up | 00000c30 73 6f 20 69 6e 63 72 65 6d 65 6e 74 20 59 20 63 |so increment Y c| 00000c40 6f 6f 72 64 69 6e 61 74 65 0d 02 e4 2e 42 4e 45 |oordinate....BNE| 00000c50 20 65 78 69 74 20 5c 20 62 72 61 6e 63 68 20 69 | exit \ branch i| 00000c60 66 20 69 6e 20 74 68 65 20 72 61 6e 67 65 20 31 |f in the range 1| 00000c70 20 74 6f 20 32 35 35 0d 02 ee 28 42 45 51 20 64 | to 255...(BEQ d| 00000c80 65 63 79 20 5c 20 69 66 20 7a 65 72 6f 20 74 68 |ecy \ if zero th| 00000c90 65 6e 20 61 6c 74 65 72 20 74 6f 20 32 35 35 0d |en alter to 255.| 00000ca0 02 f8 0a 2e 79 64 6f 77 6e 0d 03 02 22 4c 44 41 |....ydown..."LDA| 00000cb0 20 79 63 6f 6f 72 64 20 5c 20 6c 6f 61 64 20 59 | ycoord \ load Y| 00000cc0 20 63 6f 6f 72 64 69 6e 61 74 65 0d 03 0c 3b 42 | coordinate...;B| 00000cd0 45 51 20 65 78 69 74 20 5c 20 62 72 61 6e 63 68 |EQ exit \ branch| 00000ce0 20 69 66 20 7a 65 72 6f 20 62 65 63 61 75 73 65 | if zero because| 00000cf0 20 69 74 20 63 61 6e 27 74 20 67 6f 20 61 6e 79 | it can't go any| 00000d00 20 6c 6f 77 65 72 0d 03 16 09 2e 64 65 63 79 0d | lower.....decy.| 00000d10 03 20 29 44 45 43 20 79 63 6f 6f 72 64 20 5c 20 |. )DEC ycoord \ | 00000d20 72 65 64 75 63 65 20 59 20 63 6f 6f 72 64 69 6e |reduce Y coordin| 00000d30 61 74 65 20 62 79 20 31 0d 03 2a 42 4a 4d 50 20 |ate by 1..*BJMP | 00000d40 65 78 69 74 20 5c 20 72 65 73 74 6f 72 65 20 69 |exit \ restore i| 00000d50 6e 74 65 72 72 75 70 74 20 61 63 63 75 6d 75 6c |nterrupt accumul| 00000d60 61 74 6f 72 20 73 61 76 65 20 72 65 67 69 73 74 |ator save regist| 00000d70 65 72 20 61 6e 64 20 52 54 49 0d 03 34 0b 2e 78 |er and RTI..4..x| 00000d80 70 75 6c 73 65 0d 03 3e 22 4c 44 41 20 64 72 62 |pulse..>"LDA drb| 00000d90 20 5c 20 6c 6f 61 64 20 64 61 74 61 20 72 65 67 | \ load data reg| 00000da0 69 73 74 65 72 20 42 0d 03 48 1c 52 4f 52 20 41 |ister B..H.ROR A| 00000db0 20 5c 20 62 69 74 20 30 20 69 6e 74 6f 20 63 61 | \ bit 0 into ca| 00000dc0 72 72 79 0d 03 52 2f 42 43 53 20 78 64 6f 77 6e |rry..R/BCS xdown| 00000dd0 20 5c 20 58 20 69 73 20 67 6f 69 6e 67 20 64 6f | \ X is going do| 00000de0 77 6e 20 69 66 20 62 69 74 20 30 20 69 73 20 73 |wn if bit 0 is s| 00000df0 65 74 0d 03 5c 30 49 4e 43 20 78 63 6f 6f 72 64 |et..\0INC xcoord| 00000e00 20 5c 20 58 20 69 73 20 67 6f 69 6e 67 20 75 70 | \ X is going up| 00000e10 20 69 66 20 62 69 74 20 30 20 69 73 20 63 6c 65 | if bit 0 is cle| 00000e20 61 72 0d 03 66 41 42 4e 45 20 65 78 69 74 20 5c |ar..fABNE exit \| 00000e30 20 65 78 69 74 20 69 66 20 58 20 63 6f 6f 72 64 | exit if X coord| 00000e40 69 6e 61 74 65 20 69 73 20 69 6e 20 74 68 65 20 |inate is in the | 00000e50 72 61 6e 67 65 20 66 72 6f 6d 20 31 20 74 6f 20 |range from 1 to | 00000e60 32 35 35 0d 03 70 33 42 45 51 20 64 65 63 78 20 |255..p3BEQ decx | 00000e70 5c 20 69 66 20 58 20 63 6f 6f 72 64 69 6e 61 74 |\ if X coordinat| 00000e80 65 20 3d 20 30 20 74 68 65 6e 20 6d 61 6b 65 20 |e = 0 then make | 00000e90 69 74 20 32 35 35 0d 03 7a 0a 2e 78 64 6f 77 6e |it 255..z..xdown| 00000ea0 0d 03 84 22 4c 44 41 20 78 63 6f 6f 72 64 20 5c |..."LDA xcoord \| 00000eb0 20 6c 6f 61 64 20 58 20 63 6f 6f 72 64 69 6e 61 | load X coordina| 00000ec0 74 65 0d 03 8e 32 42 45 51 20 65 78 69 74 20 5c |te...2BEQ exit \| 00000ed0 20 69 66 20 69 74 20 69 73 20 7a 65 72 6f 20 69 | if it is zero i| 00000ee0 74 20 63 61 6e 27 74 20 67 6f 20 61 6e 79 20 6c |t can't go any l| 00000ef0 6f 77 65 72 0d 03 98 09 2e 64 65 63 78 0d 03 a2 |ower.....decx...| 00000f00 2b 44 45 43 20 78 63 6f 6f 72 64 20 5c 20 64 65 |+DEC xcoord \ de| 00000f10 63 72 65 61 73 65 20 58 20 63 6f 6f 72 64 69 6e |crease X coordin| 00000f20 61 74 65 20 62 79 20 31 0d 03 ac 09 2e 65 78 69 |ate by 1.....exi| 00000f30 74 0d 03 b6 40 50 4c 41 20 5c 20 70 75 6c 6c 20 |t...@PLA \ pull | 00000f40 69 6e 74 65 72 72 75 70 74 20 61 63 63 75 6d 75 |interrupt accumu| 00000f50 6c 61 74 6f 72 20 73 61 76 65 20 72 65 67 69 73 |lator save regis| 00000f60 74 65 72 20 6f 66 66 20 74 68 65 20 73 74 61 63 |ter off the stac| 00000f70 6b 0d 03 c0 27 53 54 41 20 73 61 76 65 72 65 67 |k...'STA savereg| 00000f80 20 5c 20 61 6e 64 20 72 65 73 74 6f 72 65 20 7a | \ and restore z| 00000f90 65 72 6f 20 70 61 67 65 0d 03 ca 1f 52 54 49 20 |ero page....RTI | 00000fa0 5c 20 72 65 74 75 72 6e 20 66 72 6f 6d 20 69 6e |\ return from in| 00000fb0 74 65 72 72 75 70 74 0d 03 d4 0c 2e 6e 6f 74 75 |terrupt.....notu| 00000fc0 73 65 72 0d 03 de 44 50 4c 41 20 5c 20 70 75 6c |ser...DPLA \ pul| 00000fd0 6c 20 74 68 65 20 69 6e 74 65 72 72 75 70 74 20 |l the interrupt | 00000fe0 61 63 63 75 6d 75 6c 61 74 6f 72 20 73 61 76 65 |accumulator save| 00000ff0 20 72 65 67 69 73 74 65 72 20 6f 66 66 20 74 68 | register off th| 00001000 65 20 73 74 61 63 6b 0d 03 e8 2f 53 54 41 20 73 |e stack.../STA s| 00001010 61 76 65 72 65 67 20 5c 20 72 65 73 74 6f 72 65 |avereg \ restore| 00001020 20 74 68 65 20 7a 65 72 6f 20 70 61 67 65 20 61 | the zero page a| 00001030 64 64 72 65 73 73 0d 03 f2 31 4a 4d 50 20 28 6f |ddress...1JMP (o| 00001040 6c 64 69 72 71 31 76 29 20 5c 20 65 78 69 74 20 |ldirq1v) \ exit | 00001050 76 69 61 20 74 68 65 20 6f 72 69 67 69 6e 61 6c |via the original| 00001060 20 76 65 63 74 6f 72 0d 03 fc 0c 2e 6e 65 77 73 | vector.....news| 00001070 63 61 6e 0d 04 06 1e 50 48 50 20 5c 20 70 75 73 |can....PHP \ pus| 00001080 68 20 73 74 61 74 75 73 20 72 65 67 69 73 74 65 |h status registe| 00001090 72 0d 04 10 22 43 4d 50 20 23 26 37 39 20 5c 20 |r..."CMP #&79 \ | 000010a0 69 73 20 74 68 69 73 20 4f 73 62 79 74 65 20 26 |is this Osbyte &| 000010b0 37 39 3f 0d 04 1a 3b 42 45 51 20 73 63 61 6e 20 |79?...;BEQ scan | 000010c0 5c 20 69 66 20 69 74 20 69 73 20 62 72 61 6e 63 |\ if it is branc| 000010d0 68 20 74 6f 20 6e 65 77 20 6b 65 79 62 6f 61 72 |h to new keyboar| 000010e0 64 20 73 63 61 6e 20 72 6f 75 74 69 6e 65 0d 04 |d scan routine..| 000010f0 24 22 43 4d 50 20 23 26 37 41 20 5c 20 69 73 20 |$"CMP #&7A \ is | 00001100 74 68 69 73 20 4f 73 62 79 74 65 20 26 37 41 3f |this Osbyte &7A?| 00001110 0d 04 2e 23 42 45 51 20 73 63 61 6e 20 5c 20 62 |...#BEQ scan \ b| 00001120 72 61 6e 63 68 20 69 66 20 4f 73 62 79 74 65 20 |ranch if Osbyte | 00001130 26 37 41 0d 04 38 0c 2e 6e 6f 74 73 63 61 6e 0d |&7A..8..notscan.| 00001140 04 42 35 50 4c 50 20 5c 20 72 65 73 74 6f 72 65 |.B5PLP \ restore| 00001150 20 73 74 61 74 75 73 20 72 65 67 69 73 74 65 72 | status register| 00001160 20 61 6e 64 20 72 65 74 75 72 6e 20 74 6f 20 42 | and return to B| 00001170 41 53 49 43 0d 04 4c 0c 2e 6f 6c 64 63 6f 64 65 |ASIC..L..oldcode| 00001180 0d 04 56 34 4a 4d 50 20 28 6f 6c 64 62 79 74 65 |..V4JMP (oldbyte| 00001190 76 29 20 5c 20 65 78 69 74 20 76 69 61 20 6f 72 |v) \ exit via or| 000011a0 69 67 69 6e 61 6c 20 4f 73 62 79 74 65 20 76 65 |iginal Osbyte ve| 000011b0 63 74 6f 72 0d 04 60 09 2e 73 63 61 6e 0d 04 6a |ctor..`..scan..j| 000011c0 32 50 48 41 20 5c 20 70 75 73 68 20 74 68 65 20 |2PHA \ push the | 000011d0 4f 73 62 79 74 65 20 63 6f 64 65 20 28 65 69 74 |Osbyte code (eit| 000011e0 68 65 72 20 26 37 39 20 6f 72 20 26 37 41 29 0d |her &79 or &7A).| 000011f0 04 74 32 4a 53 52 20 6f 6c 64 63 6f 64 65 20 5c |.t2JSR oldcode \| 00001200 20 70 65 72 66 6f 72 6d 20 74 68 65 20 6f 72 69 | perform the ori| 00001210 67 69 6e 61 6c 20 4f 73 62 79 74 65 20 63 61 6c |ginal Osbyte cal| 00001220 6c 0d 04 7e 26 43 50 58 20 23 26 46 46 20 5c 20 |l..~&CPX #&FF \ | 00001230 6b 65 79 20 70 72 65 73 73 65 64 20 69 66 20 58 |key pressed if X| 00001240 20 3c 3e 20 26 46 46 0d 04 88 2e 42 45 51 20 6e | <> &FF....BEQ n| 00001250 6f 74 70 72 65 73 73 65 64 20 5c 20 62 72 61 6e |otpressed \ bran| 00001260 63 68 20 69 66 20 6b 65 79 20 6e 6f 74 20 70 72 |ch if key not pr| 00001270 65 73 73 65 64 0d 04 92 0c 2e 70 75 6c 6c 6f 75 |essed.....pullou| 00001280 74 0d 04 9c 2e 50 4c 41 20 5c 20 70 75 6c 6c 20 |t....PLA \ pull | 00001290 4f 73 62 79 74 65 20 63 6f 64 65 20 28 65 69 74 |Osbyte code (eit| 000012a0 68 65 72 20 26 37 39 20 6f 72 20 26 37 41 29 0d |her &79 or &7A).| 000012b0 04 a6 22 50 4c 50 20 5c 20 70 75 6c 6c 20 74 68 |.."PLP \ pull th| 000012c0 65 20 73 74 61 74 75 73 20 72 65 67 69 73 74 65 |e status registe| 000012d0 72 0d 04 b0 1d 52 54 53 20 5c 20 61 6e 64 20 72 |r....RTS \ and r| 000012e0 65 74 75 72 6e 20 74 6f 20 42 41 53 49 43 0d 04 |eturn to BASIC..| 000012f0 ba 0f 2e 6e 6f 74 70 72 65 73 73 65 64 0d 04 c4 |...notpressed...| 00001300 22 4c 44 41 20 64 72 62 20 5c 20 6c 6f 61 64 20 |"LDA drb \ load | 00001310 64 61 74 61 20 72 65 67 69 73 74 65 72 20 42 0d |data register B.| 00001320 04 ce 2a 52 4f 4c 20 41 20 5c 20 62 69 74 20 37 |..*ROL A \ bit 7| 00001330 20 6f 66 20 72 65 67 69 73 74 65 72 20 42 20 69 | of register B i| 00001340 6e 74 6f 20 63 61 72 72 79 0d 04 d8 38 42 43 43 |nto carry...8BCC| 00001350 20 72 69 67 68 74 70 72 65 73 73 20 5c 20 63 61 | rightpress \ ca| 00001360 72 72 79 20 63 6c 65 61 72 20 69 66 20 72 69 67 |rry clear if rig| 00001370 68 74 20 62 75 74 74 6f 6e 20 70 72 65 73 73 65 |ht button presse| 00001380 64 0d 04 e2 1c 52 4f 4c 20 41 20 5c 20 62 69 74 |d....ROL A \ bit| 00001390 20 36 20 69 6e 74 6f 20 63 61 72 72 79 0d 04 ec | 6 into carry...| 000013a0 3a 42 43 43 20 63 65 6e 74 72 65 70 72 65 73 73 |:BCC centrepress| 000013b0 20 5c 20 62 69 74 20 36 20 63 6c 65 61 72 20 69 | \ bit 6 clear i| 000013c0 66 20 63 65 6e 74 72 65 20 62 75 74 74 6f 6e 20 |f centre button | 000013d0 70 72 65 73 73 65 64 0d 04 f6 1c 52 4f 4c 20 41 |pressed....ROL A| 000013e0 20 5c 20 62 69 74 20 35 20 69 6e 74 6f 20 63 61 | \ bit 5 into ca| 000013f0 72 72 79 0d 05 00 36 42 43 43 20 6c 65 66 74 70 |rry...6BCC leftp| 00001400 72 65 73 73 20 5c 20 62 69 74 20 35 20 63 6c 65 |ress \ bit 5 cle| 00001410 61 72 20 69 66 20 6c 65 66 74 20 62 75 74 74 6f |ar if left butto| 00001420 6e 20 70 72 65 73 73 65 64 0d 05 0a 31 4c 44 41 |n pressed...1LDA| 00001430 20 78 63 6f 6f 72 64 20 5c 20 58 20 63 6f 6f 72 | xcoord \ X coor| 00001440 64 69 6e 61 74 65 20 66 72 6f 6d 20 6d 6f 75 73 |dinate from mous| 00001450 65 20 6d 6f 76 65 6d 65 6e 74 0d 05 14 29 43 4d |e movement...)CM| 00001460 50 20 23 26 38 38 20 5c 20 69 73 20 74 68 65 20 |P #&88 \ is the | 00001470 58 20 63 6f 6f 72 64 69 6e 61 74 65 20 3e 20 26 |X coordinate > &| 00001480 38 37 3f 0d 05 1e 3a 42 43 53 20 72 69 67 68 74 |87?...:BCS right| 00001490 61 72 72 6f 77 20 5c 20 62 72 61 6e 63 68 20 69 |arrow \ branch i| 000014a0 66 20 58 20 63 6f 6f 72 64 69 6e 61 74 65 20 69 |f X coordinate i| 000014b0 73 20 68 69 67 68 20 65 6e 6f 75 67 68 0d 05 28 |s high enough..(| 000014c0 29 43 4d 50 20 23 26 37 38 20 5c 20 69 73 20 74 |)CMP #&78 \ is t| 000014d0 68 65 20 58 20 63 6f 6f 72 64 69 6e 61 74 65 20 |he X coordinate | 000014e0 3c 20 26 37 38 3f 0d 05 32 38 42 43 43 20 6c 65 |< &78?..28BCC le| 000014f0 66 74 61 72 72 6f 77 20 5c 20 62 72 61 6e 63 68 |ftarrow \ branch| 00001500 20 69 66 20 59 20 63 6f 6f 72 64 69 6e 61 74 65 | if Y coordinate| 00001510 20 69 73 20 6c 6f 77 20 65 6e 6f 75 67 68 0d 05 | is low enough..| 00001520 3c 31 4c 44 41 20 79 63 6f 6f 72 64 20 5c 20 59 |<1LDA ycoord \ Y| 00001530 20 63 6f 6f 72 64 69 6e 61 74 65 20 66 72 6f 6d | coordinate from| 00001540 20 6d 6f 75 73 65 20 6d 6f 76 65 6d 65 6e 74 0d | mouse movement.| 00001550 05 46 29 43 4d 50 20 23 26 38 38 20 5c 20 69 73 |.F)CMP #&88 \ is| 00001560 20 74 68 65 20 59 20 63 6f 6f 72 64 69 6e 61 74 | the Y coordinat| 00001570 65 20 3e 20 26 38 37 3f 0d 05 50 37 42 43 53 20 |e > &87?..P7BCS | 00001580 75 70 61 72 72 6f 77 20 5c 20 62 72 61 6e 63 68 |uparrow \ branch| 00001590 20 69 66 20 59 20 63 6f 6f 72 64 69 6e 61 74 65 | if Y coordinate| 000015a0 20 69 73 20 68 69 67 68 20 65 6e 6f 75 67 68 0d | is high enough.| 000015b0 05 5a 29 43 4d 50 20 23 26 37 38 20 5c 20 69 73 |.Z)CMP #&78 \ is| 000015c0 20 74 68 65 20 59 20 63 6f 6f 72 64 69 6e 61 74 | the Y coordinat| 000015d0 65 20 3c 20 26 37 38 3f 0d 05 64 2e 42 43 53 20 |e < &78?..d.BCS | 000015e0 70 75 6c 6c 6f 75 74 20 5c 20 72 65 74 75 72 6e |pullout \ return| 000015f0 20 74 6f 20 42 41 53 49 43 20 69 66 20 69 74 20 | to BASIC if it | 00001600 69 73 20 6e 6f 74 0d 05 6e 36 4c 44 58 20 64 6f |is not..n6LDX do| 00001610 77 6e 20 5c 20 73 69 6d 75 6c 61 74 65 20 61 20 |wn \ simulate a | 00001620 70 72 65 73 73 20 6f 6e 20 74 68 65 20 63 75 72 |press on the cur| 00001630 73 6f 72 20 64 6f 77 6e 20 6b 65 79 0d 05 78 3b |sor down key..x;| 00001640 42 4e 45 20 72 65 73 65 74 79 20 5c 20 75 6e 63 |BNE resety \ unc| 00001650 6f 6e 64 69 74 69 6f 6e 61 6c 20 62 72 61 6e 63 |onditional branc| 00001660 68 20 74 6f 20 72 65 73 65 74 20 59 20 63 6f 6f |h to reset Y coo| 00001670 72 64 69 6e 61 74 65 0d 05 82 0c 2e 75 70 61 72 |rdinate.....upar| 00001680 72 6f 77 0d 05 8c 32 4c 44 58 20 75 70 20 5c 20 |row...2LDX up \ | 00001690 73 69 6d 75 6c 61 74 65 20 61 20 70 72 65 73 73 |simulate a press| 000016a0 20 6f 6e 20 74 68 65 20 63 75 72 73 6f 72 20 75 | on the cursor u| 000016b0 70 20 6b 65 79 0d 05 96 0b 2e 72 65 73 65 74 79 |p key.....resety| 000016c0 0d 05 a0 2c 4c 44 41 20 23 26 38 30 20 5c 20 72 |...,LDA #&80 \ r| 000016d0 65 73 65 74 20 74 68 65 20 59 20 63 6f 6f 72 64 |eset the Y coord| 000016e0 69 6e 61 74 65 20 74 6f 20 26 38 30 0d 05 aa 0e |inate to &80....| 000016f0 53 54 41 20 79 63 6f 6f 72 64 0d 05 b4 39 42 4e |STA ycoord...9BN| 00001700 45 20 70 75 6c 6c 6f 75 74 20 5c 20 75 6e 63 6f |E pullout \ unco| 00001710 6e 64 69 74 69 6f 6e 61 6c 20 62 72 61 6e 63 68 |nditional branch| 00001720 20 74 6f 20 72 65 74 75 72 6e 20 74 6f 20 42 41 | to return to BA| 00001730 53 49 43 0d 05 be 0f 2e 72 69 67 68 74 61 72 72 |SIC.....rightarr| 00001740 6f 77 0d 05 c8 38 4c 44 58 20 72 69 67 68 74 20 |ow...8LDX right | 00001750 5c 20 73 69 6d 75 6c 61 74 65 20 61 20 70 72 65 |\ simulate a pre| 00001760 73 73 20 6f 6e 20 74 68 65 20 63 75 72 73 6f 72 |ss on the cursor| 00001770 20 72 69 67 68 74 20 6b 65 79 0d 05 d2 3b 42 4e | right key...;BN| 00001780 45 20 72 65 73 65 74 78 20 5c 20 75 6e 63 6f 6e |E resetx \ uncon| 00001790 64 69 74 69 6f 6e 61 6c 20 62 72 61 6e 63 68 20 |ditional branch | 000017a0 74 6f 20 72 65 73 65 74 20 58 20 63 6f 6f 72 64 |to reset X coord| 000017b0 69 6e 61 74 65 0d 05 dc 0e 2e 6c 65 66 74 61 72 |inate.....leftar| 000017c0 72 6f 77 0d 05 e6 36 4c 44 58 20 6c 65 66 74 20 |row...6LDX left | 000017d0 5c 20 73 69 6d 75 6c 61 74 65 20 61 20 70 72 65 |\ simulate a pre| 000017e0 73 73 20 6f 6e 20 74 68 65 20 63 75 72 73 6f 72 |ss on the cursor| 000017f0 20 6c 65 66 74 20 6b 65 79 0d 05 f0 0b 2e 72 65 | left key.....re| 00001800 73 65 74 78 0d 05 fa 28 4c 44 41 20 23 26 38 30 |setx...(LDA #&80| 00001810 20 5c 20 72 65 73 65 74 20 59 20 63 6f 6f 72 64 | \ reset Y coord| 00001820 69 6e 61 74 65 20 74 6f 20 26 38 30 0d 06 04 0e |inate to &80....| 00001830 53 54 41 20 78 63 6f 6f 72 64 0d 06 0e 39 42 4e |STA xcoord...9BN| 00001840 45 20 70 75 6c 6c 6f 75 74 20 5c 20 75 6e 63 6f |E pullout \ unco| 00001850 6e 64 69 74 69 6f 6e 61 6c 20 62 72 61 6e 63 68 |nditional branch| 00001860 20 74 6f 20 72 65 74 75 72 6e 20 74 6f 20 42 41 | to return to BA| 00001870 53 49 43 0d 06 18 0e 2e 6c 65 66 74 70 72 65 73 |SIC.....leftpres| 00001880 73 0d 06 22 40 4c 44 58 20 6c 65 66 74 62 75 74 |s.."@LDX leftbut| 00001890 74 6f 6e 20 5c 20 73 69 6d 75 6c 61 74 65 20 61 |ton \ simulate a| 000018a0 20 6b 65 79 20 70 72 65 73 73 20 66 72 6f 6d 20 | key press from | 000018b0 6c 65 66 74 20 6d 6f 75 73 65 20 62 75 74 74 6f |left mouse butto| 000018c0 6e 0d 06 2c 39 42 4e 45 20 70 75 6c 6c 6f 75 74 |n..,9BNE pullout| 000018d0 20 5c 20 75 6e 63 6f 6e 64 69 74 69 6f 6e 61 6c | \ unconditional| 000018e0 20 62 72 61 6e 63 68 20 74 6f 20 72 65 74 75 72 | branch to retur| 000018f0 6e 20 74 6f 20 42 41 53 49 43 0d 06 36 0f 2e 72 |n to BASIC..6..r| 00001900 69 67 68 74 70 72 65 73 73 0d 06 40 42 4c 44 58 |ightpress..@BLDX| 00001910 20 72 69 67 68 74 62 75 74 74 6f 6e 20 5c 20 73 | rightbutton \ s| 00001920 69 6d 75 6c 61 74 65 20 61 20 6b 65 79 20 70 72 |imulate a key pr| 00001930 65 73 73 20 66 72 6f 6d 20 72 69 67 68 74 20 6d |ess from right m| 00001940 6f 75 73 65 20 62 75 74 74 6f 6e 0d 06 4a 39 42 |ouse button..J9B| 00001950 4e 45 20 70 75 6c 6c 6f 75 74 20 5c 20 75 6e 63 |NE pullout \ unc| 00001960 6f 6e 64 69 74 69 6f 6e 61 6c 20 62 72 61 6e 63 |onditional branc| 00001970 68 20 74 6f 20 72 65 74 75 72 6e 20 74 6f 20 42 |h to return to B| 00001980 41 53 49 43 0d 06 54 10 2e 63 65 6e 74 72 65 70 |ASIC..T..centrep| 00001990 72 65 73 73 0d 06 5e 44 4c 44 58 20 63 65 6e 74 |ress..^DLDX cent| 000019a0 72 65 62 75 74 74 6f 6e 20 5c 20 73 69 6d 75 6c |rebutton \ simul| 000019b0 61 74 65 20 61 20 6b 65 79 20 70 72 65 73 73 20 |ate a key press | 000019c0 66 72 6f 6d 20 63 65 6e 74 72 65 20 6d 6f 75 73 |from centre mous| 000019d0 65 20 62 75 74 74 6f 6e 0d 06 68 39 42 4e 45 20 |e button..h9BNE | 000019e0 70 75 6c 6c 6f 75 74 20 5c 20 75 6e 63 6f 6e 64 |pullout \ uncond| 000019f0 69 74 69 6f 6e 61 6c 20 62 72 61 6e 63 68 20 74 |itional branch t| 00001a00 6f 20 72 65 74 75 72 6e 20 74 6f 20 42 41 53 49 |o return to BASI| 00001a10 43 0d 06 72 10 2e 72 69 67 68 74 62 75 74 74 6f |C..r..rightbutto| 00001a20 6e 0d 06 7c 29 45 51 55 42 20 26 35 39 20 5c 20 |n..|)EQUB &59 \ | 00001a30 64 65 6c 65 74 65 20 69 6e 74 65 72 6e 61 6c 20 |delete internal | 00001a40 6b 65 79 20 6e 75 6d 62 65 72 0d 06 86 11 2e 63 |key number.....c| 00001a50 65 6e 74 72 65 62 75 74 74 6f 6e 0d 06 90 29 45 |entrebutton...)E| 00001a60 51 55 42 20 26 34 39 20 5c 20 72 65 74 75 72 6e |QUB &49 \ return| 00001a70 20 69 6e 74 65 72 6e 61 6c 20 6b 65 79 20 6e 75 | internal key nu| 00001a80 6d 62 65 72 0d 06 9a 0f 2e 6c 65 66 74 62 75 74 |mber.....leftbut| 00001a90 74 6f 6e 0d 06 a4 27 45 51 55 42 20 26 36 39 20 |ton...'EQUB &69 | 00001aa0 5c 20 63 6f 70 79 20 69 6e 74 65 72 6e 61 6c 20 |\ copy internal | 00001ab0 6b 65 79 20 6e 75 6d 62 65 72 0d 06 ae 07 2e 75 |key number.....u| 00001ac0 70 0d 06 b8 2c 45 51 55 42 20 26 33 39 20 5c 20 |p...,EQUB &39 \ | 00001ad0 63 75 72 73 6f 72 20 75 70 20 69 6e 74 65 72 6e |cursor up intern| 00001ae0 61 6c 20 6b 65 79 20 6e 75 6d 62 65 72 0d 06 c2 |al key number...| 00001af0 09 2e 64 6f 77 6e 0d 06 cc 2e 45 51 55 42 20 26 |..down....EQUB &| 00001b00 32 39 20 5c 20 63 75 72 73 6f 72 20 64 6f 77 6e |29 \ cursor down| 00001b10 20 69 6e 74 65 72 6e 61 6c 20 6b 65 79 20 6e 75 | internal key nu| 00001b20 6d 62 65 72 0d 06 d6 09 2e 6c 65 66 74 0d 06 e0 |mber.....left...| 00001b30 2e 45 51 55 42 20 26 31 39 20 5c 20 63 75 72 73 |.EQUB &19 \ curs| 00001b40 6f 72 20 6c 65 66 74 20 69 6e 74 65 72 6e 61 6c |or left internal| 00001b50 20 6b 65 79 20 6e 75 6d 62 65 72 0d 06 ea 0a 2e | key number.....| 00001b60 72 69 67 68 74 0d 06 f4 2f 45 51 55 42 20 26 37 |right.../EQUB &7| 00001b70 39 20 5c 20 63 75 72 73 6f 72 20 72 69 67 68 74 |9 \ cursor right| 00001b80 20 69 6e 74 65 72 6e 61 6c 20 6b 65 79 20 6e 75 | internal key nu| 00001b90 6d 62 65 72 0d 06 fe 0d 2e 6f 6c 64 69 72 71 31 |mber.....oldirq1| 00001ba0 76 0d 07 08 23 45 51 55 57 20 26 30 30 20 5c 20 |v...#EQUW &00 \ | 00001bb0 6f 72 69 67 69 6e 61 6c 20 69 72 71 31 20 76 65 |original irq1 ve| 00001bc0 63 74 6f 72 0d 07 12 0d 2e 6f 6c 64 62 79 74 65 |ctor.....oldbyte| 00001bd0 76 0d 07 1c 31 45 51 55 57 20 26 30 30 20 5c 20 |v...1EQUW &00 \ | 00001be0 6f 72 69 67 69 6e 61 6c 20 4f 73 62 79 74 65 20 |original Osbyte | 00001bf0 69 6e 64 69 72 65 63 74 69 6f 6e 20 76 65 63 74 |indirection vect| 00001c00 6f 72 0d 07 26 0b 2e 78 63 6f 6f 72 64 0d 07 30 |or..&..xcoord..0| 00001c10 27 45 51 55 42 20 26 38 30 20 5c 20 6d 6f 75 73 |'EQUB &80 \ mous| 00001c20 65 20 58 20 63 6f 6f 72 64 69 6e 61 74 65 20 30 |e X coordinate 0| 00001c30 2d 32 35 35 0d 07 3a 0b 2e 79 63 6f 6f 72 64 0d |-255..:..ycoord.| 00001c40 07 44 27 45 51 55 42 20 26 38 30 20 5c 20 6d 6f |.D'EQUB &80 \ mo| 00001c50 75 73 65 20 59 20 63 6f 6f 72 64 69 6e 61 74 65 |use Y coordinate| 00001c60 20 30 2d 32 35 35 0d 07 4e 0d 2e 6c 61 73 74 62 | 0-255..N..lastb| 00001c70 79 74 65 0d 07 58 05 5d 0d 07 62 05 ed 0d 07 6c |yte..X.]..b....l| 00001c80 1f d6 20 6d 63 6f 64 65 20 3a f4 3a 20 65 6e 61 |.. mcode :.: ena| 00001c90 62 6c 65 20 6e 65 77 20 63 6f 64 65 0d 07 76 06 |ble new code..v.| 00001ca0 eb 37 0d 07 80 48 6d 6f 75 73 65 24 3d bd 31 34 |.7...Hmouse$=.14| 00001cb0 31 2b bd 31 33 32 2b bd 31 35 37 2b bd 31 33 31 |1+.132+.157+.131| 00001cc0 2b 22 50 72 65 73 73 20 6b 65 79 62 6f 61 72 64 |+"Press keyboard| 00001cd0 20 6f 72 20 6d 6f 76 65 20 74 68 65 20 6d 6f 75 | or move the mou| 00001ce0 73 65 20 20 22 2b bd 31 35 36 0d 07 8a 10 f1 8a |se "+.156......| 00001cf0 30 2c 31 29 6d 6f 75 73 65 24 0d 07 94 10 f1 8a |0,1)mouse$......| 00001d00 30 2c 32 29 6d 6f 75 73 65 24 0d 07 9e 2d f1 8a |0,2)mouse$...-..| 00001d10 31 30 2c 36 29 22 42 79 74 65 73 20 75 73 65 64 |10,6)"Bytes used| 00001d20 20 3d 20 26 22 3b 7e 28 6c 61 73 74 62 79 74 65 | = &";~(lastbyte| 00001d30 2d 6d 63 6f 64 65 29 0d 07 a8 0e ee 20 85 20 e5 |-mcode)..... . .| 00001d40 20 8d 54 74 48 0d 07 b2 12 ef 32 33 2c 31 2c 30 | .TtH.....23,1,0| 00001d50 3b 30 3b 30 3b 30 3b 0d 07 bc 05 f5 0d 07 c6 1c |;0;0;0;.........| 00001d60 f1 8a 31 30 2c 31 30 29 22 58 20 3d 20 26 22 3b |..10,10)"X = &";| 00001d70 7e 3f 48 25 3b 22 20 22 0d 07 d0 1c f1 8a 32 30 |~?H%;" "......20| 00001d80 2c 31 30 29 22 59 20 3d 20 26 22 3b 7e 3f 56 25 |,10)"Y = &";~?V%| 00001d90 3b 22 20 22 0d 07 da 0a 41 25 3d 26 37 39 0d 07 |;" "....A%=&79..| 00001da0 e4 09 58 25 3d 31 36 0d 07 ee 24 61 6e 73 77 65 |..X%=16...$answe| 00001db0 72 3d 28 ba 28 6f 73 62 79 74 65 29 20 80 20 26 |r=(.(osbyte) . &| 00001dc0 46 46 30 30 29 81 20 26 31 30 30 0d 07 f8 2a f1 |FF00). &100...*.| 00001dd0 8a 39 2c 31 35 29 22 4f 73 62 79 74 65 20 26 37 |.9,15)"Osbyte &7| 00001de0 39 2c 20 58 20 3d 20 26 22 3b 7e 61 6e 73 77 65 |9, X = &";~answe| 00001df0 72 3b 22 20 22 0d 08 02 0a 41 25 3d 26 37 41 0d |r;" "....A%=&7A.| 00001e00 08 0c 08 58 25 3d 30 0d 08 16 24 61 6e 73 77 65 |...X%=0...$answe| 00001e10 72 3d 28 ba 28 6f 73 62 79 74 65 29 20 80 20 26 |r=(.(osbyte) . &| 00001e20 46 46 30 30 29 81 20 26 31 30 30 0d 08 20 2a f1 |FF00). &100.. *.| 00001e30 8a 39 2c 32 30 29 22 4f 73 62 79 74 65 20 26 37 |.9,20)"Osbyte &7| 00001e40 41 2c 20 58 20 3d 20 26 22 3b 7e 61 6e 73 77 65 |A, X = &";~answe| 00001e50 72 3b 22 20 22 0d 08 2a 07 fd 20 a3 0d 08 34 20 |r;" "..*.. ...4 | 00001e60 d6 20 6d 63 6f 64 65 20 3a f4 3a 20 64 69 73 61 |. mcode :.: disa| 00001e70 62 6c 65 20 6e 65 77 20 63 6f 64 65 0d 08 3e 19 |ble new code..>.| 00001e80 ef 32 33 2c 31 2c 31 3b 30 3b 30 3b 30 3b 33 31 |.23,1,1;0;0;0;31| 00001e90 2c 30 2c 32 33 0d 08 48 05 e0 0d ff |,0,23..H....| 00001e9c
16-12-88/NEWSCAN.m0
16-12-88/NEWSCAN.m1
16-12-88/NEWSCAN.m2
16-12-88/NEWSCAN.m4
16-12-88/NEWSCAN.m5
.