Home » Archimedes archive » Acorn User » AU 1994-08.adf » !StarInfo_StarInfo » BurrowsH/!TextAway/!RunImage
BurrowsH/!TextAway/!RunImage
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 » Archimedes archive » Acorn User » AU 1994-08.adf » !StarInfo_StarInfo |
Filename: | BurrowsH/!TextAway/!RunImage |
Read OK: | ✔ |
File size: | 23E6 bytes |
Load address: | 0000 |
Exec address: | 0000 |
File contents
10REM > <TextAway$Dir>.!RunImage 20 30REM FNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFN 40REM FN TextAway - by Henry FN 50REM FN Scroll lines of text away into the depths of interstellar space FN 60REM FN Version 1.0 - 21-03-94 FN 70REM FNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFNFN 80 90MODE 15 100MODE 13:OFF 110 120speed%=2:REM Speed of the text (2) 130bx%=149: REM X width at base (149) 140tx%=20: REM X width at top (20) 150ty%=180: REM Y of top (180) 160PROCcompile 170 180REM Set up colour bytes 190RESTORE 200:DIM col%(15):FORc%=0TO15:READcol%(c%):NEXT 200DATA &00,&01,&02,&03,&2C,&2D,&2E,&2F,&D0,&D1,&D2,&D3,&FC,&FD,&FE,&FF 210 220REM Set up data tables 230xw=bx%:xsc=(bx%-tx%)/ty%:yinr=0 240FOR y%=0 TO ty% 250 scale%!(y%*4)=(xw/bx%)*(1<<13) 260 yatw%!(y%*4)=yinr 270 ycol%?y%=col%(15-yinr/30) 280 yinr+=bx%/xw 290 xw-=xsc 300NEXT 310 320ON ERROR PROCerr 330 340CALL runloop% 350 360SYS 6,112,1:SYS 6,113,1 370END 380 390DEFPROCerr 400SYS 6,112,1:SYS 6,113,1 410IF ERR<>17 THEN 420 REPORT 430 IF ERR<>1 PRINT " at ";ERL 440ENDIF 450END 460 470DEFPROCcompile 480 490REM Calculate the number of lines of text 500file%=OPENIN("<TextAway$Dir>.Text") 510IF file%=0 ERROR 1, "Text file missing" 520rlines=0 530line$="" 540WHILE NOT EOF#file% 550 line$=GET$#file% 560 rlines+=1 570ENDWHILE 580CLOSE#file% 590repeat%=(line$="*") 600IF repeat% rlines-=1 610IF rlines=0 ERROR 1, "Nothing in text file" 620 630stars=64 :REM Number of stars in space 640DIM code 32*1024 650FOR p%=0 TO 2 STEP 2 660P%=code 670[OPTp% 680 690.size% OPT FNspace(96,p%) 700.buff% OPT FNspace((127-32)*128,p%) 710.s_a% OPT FNspace(stars*4,p%) 720 730.plotstars 740MOV R0,#stars-1 750ADR R1,s_a% 760LDR R5,truescrad% 770MOV R4,#&D0 780.loop% 790 LDR R2,[R1,R0,LSL#2] 800 LDRB R3,[R2,R5] 810 MOVS R3,R3 820 STREQB R4,[R2,R5] 830 SUBS R0,R0,#1 840BPL loop% 850MOV PC,R14 860 870.swapscrads% 880 STR R14,[R13,#-4]! 890 LDR R4,scrf% 900 MOV R0,#113:MOV R1,R4:SWI "OS_Byte" ; Show last screen 910 EOR R4,R4,#3 920 STR R4,scrf% 930 ADR R0,scrad% 940 SUB R4,R4,#1 950 LDR R0,[R0,R4,LSL#2] ; R0=screen address 1 or 2 960 BL storescrad2% 970 LDR R1,scrof% 980 SUB R0,R0,R1 ; Reset to top 990 STR R0,truescrad% 1000 LDR PC,[R13],#4 1010 1020.scrf% EQUD 1 ; Screen flag 1030.scrof% EQUD 255*320 1040.scrad% EQUD 148:EQUD -1 1050 1060.setup% STR R14,[R13,#-4]! 1070 ADR R0,scrad%:ADR R1,scrad%:SWI "OS_ReadVduVariables" 1080 LDR R0,scrad%:STR R0,truescrad% 1090 LDR R1,scrof%:ADD R0,R0,R1:STR R0,scrad% 1100 BL storescrad2% 1110 ADD R0,R0,#&14000:STR R0,scrad%+4 1120 BL claim% 1130 MOV R0,#14:MOV R1,#4:SWI "OS_Byte" 1140 LDR PC,[R13],#4 1150 1160.closedown% 1170 STR R14,[R13,#-4]! 1180 MOV R0,#13:MOV R1,#4:SWI "OS_Byte" 1190 BL release% 1200 LDR PC,[R13],#4 1210 1220.truescrad% 1230 EQUD 0 1240 1250.cls13a 1260 EQUD 0 1270 1280.cls13b 1290 EQUD 0:EQUD 0:EQUD 0:EQUD 0 1300 EQUD 0:EQUD 0:EQUD 0:EQUD 0 1310 EQUD 0:EQUD 0:EQUD 0:EQUD 0 1320 EQUD 0 1330 1340.cls13 ; Clear the MODE 13 screen 1350 STMFD R13!,{R0-R12,R14} 1360 STR R13,cls13a 1370 ADR R13,cls13b 1380 LDMIA R13!,{R0-R12} 1390 MOV R13,#157 1400 LDR R14,truescrad% 1410.cls13c 1420] 1430FOR cls13d=1 TO 10 1440 [OPTp% 1450 STMIA R14!,{R0-R12} 1460 ] 1470NEXT 1480[OPTp% 1490 SUBS R13,R13,#1 1500 BNE cls13c 1510 STMIA R14!,{R0-R12} 1520 STMIA R14!,{R0-R12} 1530 STMIA R14!,{R0-R12} 1540 STMIA R14!,{R0-R12} 1550 STMIA R14!,{R0-R12} 1560 STMIA R14!,{R0-R4} 1570 LDR R13,cls13a 1580 LDMFD R13!,{R0-R12,PC} 1590 1600.scale% OPT FNspace(ty%*4+4,p%) ; Scale at this point 1610.yatw% OPT FNspace(ty%*4+4,p%) ; Y coordinate scaled 1620.ycol% OPT FNspace(ty%+1,p%):ALIGN ; Colour scaled 1630 1640.text% OPT FNspace(32*rlines,p%) ; Lines of 32 chrs each 1650.twid% OPT FNspace(4 *rlines,p%) ; Width of each line, scaled up 1660 1670.storescrad2% 1680 STR R0,scrad2% 1690 MOV PC,R14 1700 1710.mbx% EQUD bx%<<12 1720.scrad2% EQUD 0 1730.lines% EQUD rlines 1740.yatwadr% EQUD yatw% 1750.twidadr% EQUD twid% 1760.ycoladr% EQUD ycol% 1770.textadr% EQUD text% 1780.buffadr% EQUD buff% 1790.scaleadr% EQUD scale% 1800.sizeadr% EQUD size% 1810 1820.drawscr ; Draw text in sloped position, all lines top to base 1830STR R14,[R13,#-4]! 1840MOV R14,#ty% ; Loop from ty down to 0 1850.loop% 1860 LDR R8,yatwadr% 1870 LDR R8,[R8,R14,LSL#2] ; R8 = Y coordinate of this line 1880 LDR R1,pos% 1890 SUBS R8,R8,R1 ; Subtract text position 1900 BGT next% ; Off the top 1910 RSB R10,R8,#0 ; Flip over to right way up 1920 MOV R10,R10,LSR#5 ; R10 = Line of text here 1930 AND R8,R8,#31 ; R8 = Offset within text line (Y) 1940 LDR R1,lines% ; R1 = Number of lines in total 1950 CMP R10,R1:BGE next% ; Off the bottom 1960 LDR R6,twidadr% 1970 LDR R12,[R6,R10,LSL#2] ; R12 = Width of this line 1980 MOVS R12,R12:BEQ next% ; A blank line 1990 LDR R6,ycoladr% 2000 LDRB R6,[R6,R14] ; R6 = Colour at this depth 2010 LDR R4,textadr% 2020 ADD R4,R4,R10,LSL#5 ; R4 = Address of the line of text 2030 LDRB R1,[R4],#1 ; R1 = Length of line in chrs 2040 RSB R10,R8,#31 ; Position with letter reversed 2050 LDR R8,buffadr% 2060 ADD R10,R8,R10,LSL#2 ; Offset to within font data 2070 LDR R7,scaleadr% 2080 LDR R5,[R7,R14,LSL#2] ; R5 = Scale factor 2090 MUL R11,R12,R5 2100 MOV R7,R11,LSR#1 ; R7 = Width scaled to the row 2110 RSB R7,R7,#160<<13 ; Find starting point on left (sx) 2120 LDR R2,scrad2% ; R2 = Address of bottom left 2130 SUB R2,R2,R14,LSL#6 2140 SUB R2,R2,R14,LSL#8 ; Subtract sy*320 2150 LDR R0,sizeadr% 2160 MOV R11,#1 2170 .loop2% 2180 LDRB R3,[R4],#1 ; R3 = Chr from text data 2190 LDRB R12,[R0,R3] ; R12 = Width of this chr 2200 ADD R8,R10,R3,LSL#7 ; R8 = Position within font data 2210 LDRB R9,[R8],#1 ; R9 = Font byte 2220 MOV R3,#7 ; R3 = Bit to check 2230 .loop1% 2240 ADD R7,R7,R5 ; Move along 2250 TST R11,R9,LSR R3 ; Examine bit R3 of R9 2260 BEQ nopix% ; No pixel here matey 2270 CMP R7,#320<<13 ; Check not off either edge 2280 STRCCB R6,[R2,R7,LSR#13] ; Plot pixel. 2290 .nopix% 2300 SUBS R3,R3,#1 ; Next bit 2310 MOVMI R3,#7 ; Gone off byte, so reset bit 2320 LDRMIB R9,[R8],#1 ; Get next byte 2330 SUBS R12,R12,#1 2340 BPL loop1% ; Loop for the width 2350 ADD R7,R7,R5 ; Gap at end 2360 SUBS R1,R1,#1 ; One less chr to do 2370 BNE loop2% ; There are more! 2380 .next% 2390 SUBS R14,R14,#1 2400BPL loop% ; Go and do the next line now 2410LDR PC,[R13],#4 2420 2430.pos% EQUD 0 2440 2450.runloop% 2460STR R14,[R13,#-4]! 2470BL setup% 2480MOV R0,#113:MOV R1,#2:SWI "OS_Byte" 2490LDR R0,scrcnt%:STR R0,lastcnt% 2500 2510.repeat_point% 2520MOV R0,#0 2530STR R0,pos% 2540 2550.loop% 2560 2570 BL cls13 ; Clear the screen 2580 BL drawscr ; Draw the text 2590 BL plotstars ; Plot the stars 2600 2610 ; Count screen refreshes 2620 LDR R1,lastcnt% 2630 .loop1% 2640 LDR R0,scrcnt% 2650 SUB R2,R0,R1 2660 CMP R2,#speed% 2670 BLT loop1% 2680 LDR R0,scrcnt% 2690 .loop1% 2700 LDR R1,scrcnt% 2710 TEQ R0,R1 2720 BEQ loop1% 2730 STR R1,lastcnt% 2740 2750 BL swapscrads% 2760 2770 LDR R0,pos% 2780 ADD R0,R0,#2 2790 STR R0,pos% 2800 SWI "OS_ReadEscapeState" ; Check if Esc has been pressed 2810 BCS finito% 2820 LDR R1,textend% 2830 CMP R0,R1 2840BLT loop% 2850 2860] 2870IF repeat% THEN 2880 [ OPT p% 2890 B repeat_point% 2900 ] 2910ENDIF 2920[ OPT p% 2930 2940.finito% 2950BL closedown% 2960LDR PC,[R13],#4 2970 2980.textend% EQUD 0 2990 3000.lastcnt% EQUD 0 3010.claim% MOV R0,#&10:ADR R1,scrint%:MOV R2,#0:SWI "OS_Claim":MOV PC,R14 3020.release% MOV R0,#&10:ADR R1,scrint%:MOV R2,#0:SWI "OS_Release":MOV PC,R14 3030.scrcnt% EQUD 0 3040 3050.scrint% ; Called every screen interrupt 3060 CMP R0,#4:MOVNE PC,R14 3070 STMFD R13!,{R0,R14} 3080 LDR R0,scrcnt% 3090 ADD R0,R0,#1 3100 STR R0,scrcnt% 3110 LDMFD R13!,{R0,PC} 3120 3130] 3140NEXT 3150SYS "OS_File", &FF, "<TextAway$Dir>.FontData", size%, 0 3160?size%=8:REM Width of a space 3170 3180file%=OPENIN("<TextAway$Dir>.Text") 3190FOR l%=0 TO rlines-1 3200 line$=GET$#file% 3210 e%=text%+l%*32 3220 ?e%=LEN line$ 3230 e%+=1 3240 ww%=0 3250 FOR t%=1 TO LEN line$ 3260 ?e%=ASC(MID$(line$,t%,1))-32 3270 ww%+=size%?(?e%)+2 3280 e%+=1 3290 NEXT 3300 ww%-=1 3310 IF LEN line$=0 ww%=0 3320 twid%!(l%*4)=ww% 3330NEXT 3340CLOSE#file% 3350 3360!textend%=32*rlines+12*32 3370s%=RND(-1) 3380FOR s%=0 TO stars-1 3390 x%=RND(320)-1 3400 y%=RND(256)-1 3410 s_a%!(s%*4)=x%+y%*320 3420NEXT 3430ENDPROC 3440 3450DEFFNspace(space%, p%) 3460P%+=space% 3470=p%
� > <TextAway$Dir>.!RunImage I� ������������������������������������������������������������������� (I� � TextAway - by Henry � 2I� � Scroll lines of text away into the depths of interstellar space � <I� � Version 1.0 - 21-03-94 � FI� ������������������������������������������������������������������� P Z� 15 d � 13:� n x$speed%=2:� Speed of the text (2) �$bx%=149: � X width at base (149) �$tx%=20: � X width at top (20) �$ty%=180: � Y of top (180) ��compile � �� Set up colour bytes �*� �dH@:� col%(15):�c%=0�15:�col%(c%):� �E� &00,&01,&02,&03,&2C,&2D,&2E,&2F,&D0,&D1,&D2,&D3,&FC,&FD,&FE,&FF � �� Set up data tables �#xw=bx%:xsc=(bx%-tx%)/ty%:yinr=0 �� y%=0 � ty% �# scale%!(y%*4)=(xw/bx%)*(1<<13) yatw%!(y%*4)=yinr ycol%?y%=col%(15-yinr/30) yinr+=bx%/xw " xw-=xsc ,� 6 @� � �err J T� runloop% ^ hș 6,112,1:ș 6,113,1 r� | � ��err �ș 6,112,1:ș 6,113,1 � � �<>17 � � � � � �<>1 � " at ";� �� �� � � ��compile � �+� Calculate the number of lines of text �"file%=�("<TextAway$Dir>.Text") �&� file%=0 � 1, "Text file missing" rlines=0 line$="" ȕ � �#file% & line$=�#file% 0 rlines+=1 :� D�#file% Nrepeat%=(line$="*") X� repeat% rlines-=1 b*� rlines=0 � 1, "Nothing in text file" l v(stars=64 :� Number of stars in space �� code 32*1024 �� p%=0 � 2 � 2 �P%=code � [OPTp% � �.size% OPT �space(96,p%) �&.buff% OPT �space((127-32)*128,p%) �!.s_a% OPT �space(stars*4,p%) � �.plotstars �MOV R0,#stars-1 �ADR R1,s_a% �LDR R5,truescrad% MOV R4,#&D0 .loop% LDR R2,[R1,R0,LSL#2] LDRB R3,[R2,R5] * MOVS R3,R3 4 STREQB R4,[R2,R5] > SUBS R0,R0,#1 H BPL loop% RMOV PC,R14 \ f.swapscrads% p STR R14,[R13,#-4]! z LDR R4,scrf% �B MOV R0,#113:MOV R1,R4:SWI "OS_Byte" ; Show last screen � � R4,R4,#3 � STR R4,scrf% � ADR R0,scrad% � SUB R4,R4,#1 �; LDR R0,[R0,R4,LSL#2] ; R0=screen address 1 or 2 � BL storescrad2% � LDR R1,scrof% �' SUB R0,R0,R1 ; Reset to top � STR R0,truescrad% � LDR PC,[R13],#4 � � .scrf% EQUD 1 ; Screen flag .scrof% EQUD 255*320 .scrad% EQUD 148:EQUD -1 $.setup% STR R14,[R13,#-4]! .A ADR R0,scrad%:ADR R1,scrad%:SWI "OS_ReadVduVariables" 8+ LDR R0,scrad%:STR R0,truescrad% B4 LDR R1,scrof%:ADD R0,R0,R1:STR R0,scrad% L BL storescrad2% V- ADD R0,R0,#&14000:STR R0,scrad%+4 ` BL claim% j. MOV R0,#14:MOV R1,#4:SWI "OS_Byte" t LDR PC,[R13],#4 ~ �.closedown% � STR R14,[R13,#-4]! �. MOV R0,#13:MOV R1,#4:SWI "OS_Byte" � BL release% � LDR PC,[R13],#4 � �.truescrad% � EQUD 0 � �.cls13a � EQUD 0 � .cls13b ' EQUD 0:EQUD 0:EQUD 0:EQUD 0 ' EQUD 0:EQUD 0:EQUD 0:EQUD 0 ' EQUD 0:EQUD 0:EQUD 0:EQUD 0 ( EQUD 0 2 <".cls13 ; Clear the � 13 screen F# STMFD R13!,{R0-R12,R14} P STR R13,cls13a Z ADR R13,cls13b d LDMIA R13!,{R0-R12} n MOV R13,#157 x LDR R14,truescrad% �.cls13c �] �� cls13d=1 � 10 � [OPTp% � STMIA R14!,{R0-R12} � ] �� � [OPTp% � SUBS R13,R13,#1 � BNE cls13c � STMIA R14!,{R0-R12} � STMIA R14!,{R0-R12} � STMIA R14!,{R0-R12} STMIA R14!,{R0-R12} STMIA R14!,{R0-R12} STMIA R14!,{R0-R4} " LDR R13,cls13a ," LDMFD R13!,{R0-R12,PC} 6 @<.scale% OPT �space(ty%*4+4,p%) ; Scale at this point J<.yatw% OPT �space(ty%*4+4,p%) ; Y coordinate scaled T6.ycol% OPT �space(ty%+1,p%):ALIGN ; Colour scaled ^ h>.text% OPT �space(32*rlines,p%) ; Lines of 32 chrs each rF.twid% OPT �space(4 *rlines,p%) ; Width of each line, scaled up | �.storescrad2% � STR R0,scrad2% � MOV PC,R14 � �.mbx% EQUD bx%<<12 �.scrad2% EQUD 0 �.lines% EQUD rlines �.yatwadr% EQUD yatw% �.twidadr% EQUD twid% �.ycoladr% EQUD ycol% �.textadr% EQUD text% �.buffadr% EQUD buff% �.scaleadr% EQUD scale% .sizeadr% EQUD size% B.drawscr ; Draw text in sloped position, all lines top to base &STR R14,[R13,#-4]! 0)MOV R14,#ty% ; Loop from ty down to 0 : .loop% D LDR R8,yatwadr% NJ LDR R8,[R8,R14,LSL#2] ; R8 = Y coordinate of this line X LDR R1,pos% bB SUBS R8,R8,R1 ; Subtract text position l7 BGT next% ; Off the top vE RSB R10,R8,#0 ; Flip over to right way up �C MOV R10,R10,LSR#5 ; R10 = Line of text here �J � R8,R8,#31 ; R8 = Offset within text line (Y) �I LDR R1,lines% ; R1 = Number of lines in total �: CMP R10,R1:BGE next% ; Off the bottom � LDR R6,twidadr% �D LDR R12,[R6,R10,LSL#2] ; R12 = Width of this line �8 MOVS R12,R12:BEQ next% ; A blank line � LDR R6,ycoladr% �E LDRB R6,[R6,R14] ; R6 = Colour at this depth � LDR R4,textadr% �L ADD R4,R4,R10,LSL#5 ; R4 = Address of the line of text �G LDRB R1,[R4],#1 ; R1 = Length of line in chrs �I RSB R10,R8,#31 ; Position with letter reversed LDR R8,buffadr% F ADD R10,R8,R10,LSL#2 ; Offset to within font data LDR R7,scaleadr% = LDR R5,[R7,R14,LSL#2] ; R5 = Scale factor * MUL R11,R12,R5 4H MOV R7,R11,LSR#1 ; R7 = Width scaled to the row >L RSB R7,R7,#160<<13 ; Find starting point on left (sx) HG LDR R2,scrad2% ; R2 = Address of bottom left R SUB R2,R2,R14,LSL#6 \; SUB R2,R2,R14,LSL#8 ; Subtract sy*320 f LDR R0,sizeadr% p MOV R11,#1 z .loop2% �C LDRB R3,[R4],#1 ; R3 = Chr from text data �C LDRB R12,[R0,R3] ; R12 = Width of this chr �K ADD R8,R10,R3,LSL#7 ; R8 = Position within font data �; LDRB R9,[R8],#1 ; R9 = Font byte �> MOV R3,#7 ; R3 = Bit to check � .loop1% �6 ADD R7,R7,R5 ; Move along �@ TST R11,R9,LSR R3 ; Examine bit R3 of R9 �? BEQ nopix% ; No pixel here matey �E CMP R7,#320<<13 ; Check not off either edge �7 STRCCB R6,[R2,R7,LSR#13] ; Plot pixel. � .nopix% �4 SUBS R3,R3,#1 ; Next bit G MOVMI R3,#7 ; Gone off byte, so reset bit 9 LDRMIB R9,[R8],#1 ; Get next byte SUBS R12,R12,#1 $> BPL loop1% ; Loop for the width .6 ADD R7,R7,R5 ; Gap at end 8> SUBS R1,R1,#1 ; One less chr to do B; BNE loop2% ; There are more! L .next% V SUBS R14,R14,#1 `GBPL loop% ; Go and do the next line now jLDR PC,[R13],#4 t ~.pos% EQUD 0 � � .runloop% �STR R14,[R13,#-4]! �BL setup% �(MOV R0,#113:MOV R1,#2:SWI "OS_Byte" �#LDR R0,scrcnt%:STR R0,lastcnt% � �.repeat_point% �MOV R0,#0 �STR R0,pos% � � .loop% % BL cls13 ; Clear the screen " BL drawscr ; Draw the text # BL plotstars ; Plot the stars ( 2 ; Count screen refreshes < LDR R1,lastcnt% F .loop1% P LDR R0,scrcnt% Z SUB R2,R0,R1 d CMP R2,#speed% n BLT loop1% x LDR R0,scrcnt% � .loop1% � LDR R1,scrcnt% � TEQ R0,R1 � BEQ loop1% � STR R1,lastcnt% � � BL swapscrads% � � LDR R0,pos% � ADD R0,R0,#2 � STR R0,pos% �= SWI "OS_ReadEscapeState" ; Check if Esc has been pressed � BCS finito% LDR R1,textend% CMP R0,R1 BLT loop% " ,] 6� repeat% � @ [ OPT p% J B repeat_point% T ] ^� h[ OPT p% r |.finito% �BL closedown% �LDR PC,[R13],#4 � �.textend% EQUD 0 � �.lastcnt% EQUD 0 �L.claim% MOV R0,#&10:ADR R1,scrint%:MOV R2,#0:SWI "OS_Claim":MOV PC,R14 �N.release% MOV R0,#&10:ADR R1,scrint%:MOV R2,#0:SWI "OS_Release":MOV PC,R14 �.scrcnt% EQUD 0 � �,.scrint% ; Called every screen interrupt � CMP R0,#4:MOVNE PC,R14 � STMFD R13!,{R0,R14} LDR R0,scrcnt% ADD R0,R0,#1 STR R0,scrcnt% & LDMFD R13!,{R0,PC} 0 :] D� N:ș "OS_File", &FF, "<TextAway$Dir>.FontData", size%, 0 X?size%=8:� Width of a space b l"file%=�("<TextAway$Dir>.Text") v� l%=0 � rlines-1 � line$=�#file% � e%=text%+l%*32 � ?e%=� line$ � e%+=1 � ww%=0 � � t%=1 � � line$ � ?e%=�(�line$,t%,1))-32 � ww%+=size%?(?e%)+2 � e%+=1 � � � ww%-=1 � � � line$=0 ww%=0 � twid%!(l%*4)=ww% � �#file% !textend%=32*rlines+12*32 *s%=�(-1) 4� s%=0 � stars-1 > x%=�(320)-1 H y%=�(256)-1 R s_a%!(s%*4)=x%+y%*320 \� f� p zݤspace(space%, p%) �P%+=space% �=p% �
00000000 0d 00 0a 20 f4 20 3e 20 3c 54 65 78 74 41 77 61 |... . > <TextAwa| 00000010 79 24 44 69 72 3e 2e 21 52 75 6e 49 6d 61 67 65 |y$Dir>.!RunImage| 00000020 0d 00 14 04 0d 00 1e 49 f4 20 a4 a4 a4 a4 a4 a4 |.......I. ......| 00000030 a4 a4 a4 a4 a4 a4 a4 a4 a4 a4 a4 a4 a4 a4 a4 a4 |................| * 00000060 a4 a4 a4 a4 a4 a4 a4 a4 a4 a4 a4 a4 a4 0d 00 28 |...............(| 00000070 49 f4 20 a4 20 54 65 78 74 41 77 61 79 20 2d 20 |I. . TextAway - | 00000080 62 79 20 48 65 6e 72 79 20 20 20 20 20 20 20 20 |by Henry | 00000090 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | * 000000b0 20 20 20 20 20 a4 0d 00 32 49 f4 20 a4 20 53 63 | ...2I. . Sc| 000000c0 72 6f 6c 6c 20 6c 69 6e 65 73 20 6f 66 20 74 65 |roll lines of te| 000000d0 78 74 20 61 77 61 79 20 69 6e 74 6f 20 74 68 65 |xt away into the| 000000e0 20 64 65 70 74 68 73 20 6f 66 20 69 6e 74 65 72 | depths of inter| 000000f0 73 74 65 6c 6c 61 72 20 73 70 61 63 65 20 a4 0d |stellar space ..| 00000100 00 3c 49 f4 20 a4 20 56 65 72 73 69 6f 6e 20 31 |.<I. . Version 1| 00000110 2e 30 20 2d 20 32 31 2d 30 33 2d 39 34 20 20 20 |.0 - 21-03-94 | 00000120 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | * 00000140 20 20 20 20 20 20 20 a4 0d 00 46 49 f4 20 a4 a4 | ...FI. ..| 00000150 a4 a4 a4 a4 a4 a4 a4 a4 a4 a4 a4 a4 a4 a4 a4 a4 |................| * 00000190 a4 0d 00 50 04 0d 00 5a 08 eb 20 31 35 0d 00 64 |...P...Z.. 15..d| 000001a0 0a eb 20 31 33 3a 87 0d 00 6e 04 0d 00 78 24 73 |.. 13:...n...x$s| 000001b0 70 65 65 64 25 3d 32 3a f4 20 53 70 65 65 64 20 |peed%=2:. Speed | 000001c0 6f 66 20 74 68 65 20 74 65 78 74 20 28 32 29 0d |of the text (2).| 000001d0 00 82 24 62 78 25 3d 31 34 39 3a 20 f4 20 58 20 |..$bx%=149: . X | 000001e0 77 69 64 74 68 20 61 74 20 62 61 73 65 20 28 31 |width at base (1| 000001f0 34 39 29 0d 00 8c 24 74 78 25 3d 32 30 3a 20 20 |49)...$tx%=20: | 00000200 f4 20 58 20 77 69 64 74 68 20 61 74 20 74 6f 70 |. X width at top| 00000210 20 20 20 28 32 30 29 0d 00 96 24 74 79 25 3d 31 | (20)...$ty%=1| 00000220 38 30 3a 20 f4 20 59 20 6f 66 20 74 6f 70 20 20 |80: . Y of top | 00000230 20 20 20 20 20 20 28 31 38 30 29 0d 00 a0 0c f2 | (180).....| 00000240 63 6f 6d 70 69 6c 65 0d 00 aa 04 0d 00 b4 19 f4 |compile.........| 00000250 20 53 65 74 20 75 70 20 63 6f 6c 6f 75 72 20 62 | Set up colour b| 00000260 79 74 65 73 0d 00 be 2a f7 20 8d 64 48 40 3a de |ytes...*. .dH@:.| 00000270 20 63 6f 6c 25 28 31 35 29 3a e3 63 25 3d 30 b8 | col%(15):.c%=0.| 00000280 31 35 3a f3 63 6f 6c 25 28 63 25 29 3a ed 0d 00 |15:.col%(c%):...| 00000290 c8 45 dc 20 26 30 30 2c 26 30 31 2c 26 30 32 2c |.E. &00,&01,&02,| 000002a0 26 30 33 2c 26 32 43 2c 26 32 44 2c 26 32 45 2c |&03,&2C,&2D,&2E,| 000002b0 26 32 46 2c 26 44 30 2c 26 44 31 2c 26 44 32 2c |&2F,&D0,&D1,&D2,| 000002c0 26 44 33 2c 26 46 43 2c 26 46 44 2c 26 46 45 2c |&D3,&FC,&FD,&FE,| 000002d0 26 46 46 0d 00 d2 04 0d 00 dc 18 f4 20 53 65 74 |&FF......... Set| 000002e0 20 75 70 20 64 61 74 61 20 74 61 62 6c 65 73 0d | up data tables.| 000002f0 00 e6 23 78 77 3d 62 78 25 3a 78 73 63 3d 28 62 |..#xw=bx%:xsc=(b| 00000300 78 25 2d 74 78 25 29 2f 74 79 25 3a 79 69 6e 72 |x%-tx%)/ty%:yinr| 00000310 3d 30 0d 00 f0 10 e3 20 79 25 3d 30 20 b8 20 74 |=0..... y%=0 . t| 00000320 79 25 0d 00 fa 23 20 73 63 61 6c 65 25 21 28 79 |y%...# scale%!(y| 00000330 25 2a 34 29 3d 28 78 77 2f 62 78 25 29 2a 28 31 |%*4)=(xw/bx%)*(1| 00000340 3c 3c 31 33 29 0d 01 04 16 20 79 61 74 77 25 21 |<<13).... yatw%!| 00000350 28 79 25 2a 34 29 3d 79 69 6e 72 0d 01 0e 1e 20 |(y%*4)=yinr.... | 00000360 79 63 6f 6c 25 3f 79 25 3d 63 6f 6c 25 28 31 35 |ycol%?y%=col%(15| 00000370 2d 79 69 6e 72 2f 33 30 29 0d 01 18 11 20 79 69 |-yinr/30).... yi| 00000380 6e 72 2b 3d 62 78 25 2f 78 77 0d 01 22 0c 20 78 |nr+=bx%/xw..". x| 00000390 77 2d 3d 78 73 63 0d 01 2c 05 ed 0d 01 36 04 0d |w-=xsc..,....6..| 000003a0 01 40 0c ee 20 85 20 f2 65 72 72 0d 01 4a 04 0d |.@.. . .err..J..| 000003b0 01 54 0e d6 20 72 75 6e 6c 6f 6f 70 25 0d 01 5e |.T.. runloop%..^| 000003c0 04 0d 01 68 19 c8 99 20 36 2c 31 31 32 2c 31 3a |...h... 6,112,1:| 000003d0 c8 99 20 36 2c 31 31 33 2c 31 0d 01 72 05 e0 0d |.. 6,113,1..r...| 000003e0 01 7c 04 0d 01 86 09 dd f2 65 72 72 0d 01 90 19 |.|.......err....| 000003f0 c8 99 20 36 2c 31 31 32 2c 31 3a c8 99 20 36 2c |.. 6,112,1:.. 6,| 00000400 31 31 33 2c 31 0d 01 9a 0d e7 20 9f 3c 3e 31 37 |113,1..... .<>17| 00000410 20 8c 0d 01 a4 06 20 f6 0d 01 ae 16 20 e7 20 9f | ..... ..... . .| 00000420 3c 3e 31 20 f1 20 22 20 61 74 20 22 3b 9e 0d 01 |<>1 . " at ";...| 00000430 b8 05 cd 0d 01 c2 05 e0 0d 01 cc 04 0d 01 d6 0d |................| 00000440 dd f2 63 6f 6d 70 69 6c 65 0d 01 e0 04 0d 01 ea |..compile.......| 00000450 2b f4 20 43 61 6c 63 75 6c 61 74 65 20 74 68 65 |+. Calculate the| 00000460 20 6e 75 6d 62 65 72 20 6f 66 20 6c 69 6e 65 73 | number of lines| 00000470 20 6f 66 20 74 65 78 74 0d 01 f4 22 66 69 6c 65 | of text..."file| 00000480 25 3d 8e 28 22 3c 54 65 78 74 41 77 61 79 24 44 |%=.("<TextAway$D| 00000490 69 72 3e 2e 54 65 78 74 22 29 0d 01 fe 26 e7 20 |ir>.Text")...&. | 000004a0 66 69 6c 65 25 3d 30 20 85 20 31 2c 20 22 54 65 |file%=0 . 1, "Te| 000004b0 78 74 20 66 69 6c 65 20 6d 69 73 73 69 6e 67 22 |xt file missing"| 000004c0 0d 02 08 0c 72 6c 69 6e 65 73 3d 30 0d 02 12 0c |....rlines=0....| 000004d0 6c 69 6e 65 24 3d 22 22 0d 02 1c 10 c8 95 20 ac |line$=""...... .| 000004e0 20 c5 23 66 69 6c 65 25 0d 02 26 12 20 6c 69 6e | .#file%..&. lin| 000004f0 65 24 3d be 23 66 69 6c 65 25 0d 02 30 0e 20 72 |e$=.#file%..0. r| 00000500 6c 69 6e 65 73 2b 3d 31 0d 02 3a 05 ce 0d 02 44 |lines+=1..:....D| 00000510 0b d9 23 66 69 6c 65 25 0d 02 4e 17 72 65 70 65 |..#file%..N.repe| 00000520 61 74 25 3d 28 6c 69 6e 65 24 3d 22 2a 22 29 0d |at%=(line$="*").| 00000530 02 58 17 e7 20 72 65 70 65 61 74 25 20 72 6c 69 |.X.. repeat% rli| 00000540 6e 65 73 2d 3d 31 0d 02 62 2a e7 20 72 6c 69 6e |nes-=1..b*. rlin| 00000550 65 73 3d 30 20 85 20 31 2c 20 22 4e 6f 74 68 69 |es=0 . 1, "Nothi| 00000560 6e 67 20 69 6e 20 74 65 78 74 20 66 69 6c 65 22 |ng in text file"| 00000570 0d 02 6c 04 0d 02 76 28 73 74 61 72 73 3d 36 34 |..l...v(stars=64| 00000580 20 3a f4 20 4e 75 6d 62 65 72 20 6f 66 20 73 74 | :. Number of st| 00000590 61 72 73 20 69 6e 20 73 70 61 63 65 0d 02 80 12 |ars in space....| 000005a0 de 20 63 6f 64 65 20 33 32 2a 31 30 32 34 0d 02 |. code 32*1024..| 000005b0 8a 12 e3 20 70 25 3d 30 20 b8 20 32 20 88 20 32 |... p%=0 . 2 . 2| 000005c0 0d 02 94 0b 50 25 3d 63 6f 64 65 0d 02 9e 0a 5b |....P%=code....[| 000005d0 4f 50 54 70 25 0d 02 a8 04 0d 02 b2 1c 2e 73 69 |OPTp%.........si| 000005e0 7a 65 25 20 4f 50 54 20 a4 73 70 61 63 65 28 39 |ze% OPT .space(9| 000005f0 36 2c 70 25 29 0d 02 bc 26 2e 62 75 66 66 25 20 |6,p%)...&.buff% | 00000600 4f 50 54 20 a4 73 70 61 63 65 28 28 31 32 37 2d |OPT .space((127-| 00000610 33 32 29 2a 31 32 38 2c 70 25 29 0d 02 c6 21 2e |32)*128,p%)...!.| 00000620 73 5f 61 25 20 20 4f 50 54 20 a4 73 70 61 63 65 |s_a% OPT .space| 00000630 28 73 74 61 72 73 2a 34 2c 70 25 29 0d 02 d0 04 |(stars*4,p%)....| 00000640 0d 02 da 0e 2e 70 6c 6f 74 73 74 61 72 73 0d 02 |.....plotstars..| 00000650 e4 13 4d 4f 56 20 52 30 2c 23 73 74 61 72 73 2d |..MOV R0,#stars-| 00000660 31 0d 02 ee 0f 41 44 52 20 52 31 2c 73 5f 61 25 |1....ADR R1,s_a%| 00000670 0d 02 f8 15 4c 44 52 20 52 35 2c 74 72 75 65 73 |....LDR R5,trues| 00000680 63 72 61 64 25 0d 03 02 0f 4d 4f 56 20 52 34 2c |crad%....MOV R4,| 00000690 23 26 44 30 0d 03 0c 0a 2e 6c 6f 6f 70 25 0d 03 |#&D0.....loop%..| 000006a0 16 1c 20 4c 44 52 20 20 20 20 52 32 2c 5b 52 31 |.. LDR R2,[R1| 000006b0 2c 52 30 2c 4c 53 4c 23 32 5d 0d 03 20 16 20 4c |,R0,LSL#2].. . L| 000006c0 44 52 42 20 20 20 52 33 2c 5b 52 32 2c 52 35 5d |DRB R3,[R2,R5]| 000006d0 0d 03 2a 11 20 4d 4f 56 53 20 20 20 52 33 2c 52 |..*. MOVS R3,R| 000006e0 33 0d 03 34 16 20 53 54 52 45 51 42 20 52 34 2c |3..4. STREQB R4,| 000006f0 5b 52 32 2c 52 35 5d 0d 03 3e 14 20 53 55 42 53 |[R2,R5]..>. SUBS| 00000700 20 20 20 52 30 2c 52 30 2c 23 31 0d 03 48 0d 42 | R0,R0,#1..H.B| 00000710 50 4c 20 6c 6f 6f 70 25 0d 03 52 0e 4d 4f 56 20 |PL loop%..R.MOV | 00000720 50 43 2c 52 31 34 0d 03 5c 04 0d 03 66 10 2e 73 |PC,R14..\...f..s| 00000730 77 61 70 73 63 72 61 64 73 25 0d 03 70 1e 20 20 |wapscrads%..p. | 00000740 20 20 20 20 20 20 53 54 52 20 52 31 34 2c 5b 52 | STR R14,[R| 00000750 31 33 2c 23 2d 34 5d 21 0d 03 7a 18 20 20 20 20 |13,#-4]!..z. | 00000760 20 20 20 20 4c 44 52 20 52 34 2c 73 63 72 66 25 | LDR R4,scrf%| 00000770 0d 03 84 42 20 20 20 20 20 20 20 20 4d 4f 56 20 |...B MOV | 00000780 52 30 2c 23 31 31 33 3a 4d 4f 56 20 52 31 2c 52 |R0,#113:MOV R1,R| 00000790 34 3a 53 57 49 20 22 4f 53 5f 42 79 74 65 22 20 |4:SWI "OS_Byte" | 000007a0 3b 20 53 68 6f 77 20 6c 61 73 74 20 73 63 72 65 |; Show last scre| 000007b0 65 6e 0d 03 8e 16 20 20 20 20 20 20 20 20 82 20 |en.... . | 000007c0 52 34 2c 52 34 2c 23 33 0d 03 98 18 20 20 20 20 |R4,R4,#3.... | 000007d0 20 20 20 20 53 54 52 20 52 34 2c 73 63 72 66 25 | STR R4,scrf%| 000007e0 0d 03 a2 19 20 20 20 20 20 20 20 20 41 44 52 20 |.... ADR | 000007f0 52 30 2c 73 63 72 61 64 25 0d 03 ac 18 20 20 20 |R0,scrad%.... | 00000800 20 20 20 20 20 53 55 42 20 52 34 2c 52 34 2c 23 | SUB R4,R4,#| 00000810 31 0d 03 b6 3b 20 20 20 20 20 20 20 20 4c 44 52 |1...; LDR| 00000820 20 52 30 2c 5b 52 30 2c 52 34 2c 4c 53 4c 23 32 | R0,[R0,R4,LSL#2| 00000830 5d 20 3b 20 52 30 3d 73 63 72 65 65 6e 20 61 64 |] ; R0=screen ad| 00000840 64 72 65 73 73 20 31 20 6f 72 20 32 0d 03 c0 1c |dress 1 or 2....| 00000850 20 20 20 20 20 20 20 20 42 4c 20 20 73 74 6f 72 | BL stor| 00000860 65 73 63 72 61 64 32 25 0d 03 ca 19 20 20 20 20 |escrad2%.... | 00000870 20 20 20 20 4c 44 52 20 52 31 2c 73 63 72 6f 66 | LDR R1,scrof| 00000880 25 0d 03 d4 27 20 20 20 20 20 20 20 20 53 55 42 |%...' SUB| 00000890 20 52 30 2c 52 30 2c 52 31 20 3b 20 52 65 73 65 | R0,R0,R1 ; Rese| 000008a0 74 20 74 6f 20 74 6f 70 0d 03 de 1d 20 20 20 20 |t to top.... | 000008b0 20 20 20 20 53 54 52 20 52 30 2c 74 72 75 65 73 | STR R0,trues| 000008c0 63 72 61 64 25 0d 03 e8 1b 20 20 20 20 20 20 20 |crad%.... | 000008d0 20 4c 44 52 20 50 43 2c 5b 52 31 33 5d 2c 23 34 | LDR PC,[R13],#4| 000008e0 0d 03 f2 04 0d 03 fc 20 2e 73 63 72 66 25 20 20 |....... .scrf% | 000008f0 45 51 55 44 20 31 20 3b 20 53 63 72 65 65 6e 20 |EQUD 1 ; Screen | 00000900 66 6c 61 67 0d 04 06 18 2e 73 63 72 6f 66 25 20 |flag.....scrof% | 00000910 45 51 55 44 20 32 35 35 2a 33 32 30 0d 04 10 1c |EQUD 255*320....| 00000920 2e 73 63 72 61 64 25 20 45 51 55 44 20 31 34 38 |.scrad% EQUD 148| 00000930 3a 45 51 55 44 20 2d 31 0d 04 1a 04 0d 04 24 1e |:EQUD -1......$.| 00000940 2e 73 65 74 75 70 25 20 53 54 52 20 52 31 34 2c |.setup% STR R14,| 00000950 5b 52 31 33 2c 23 2d 34 5d 21 0d 04 2e 41 20 20 |[R13,#-4]!...A | 00000960 20 20 20 20 20 20 41 44 52 20 52 30 2c 73 63 72 | ADR R0,scr| 00000970 61 64 25 3a 41 44 52 20 52 31 2c 73 63 72 61 64 |ad%:ADR R1,scrad| 00000980 25 3a 53 57 49 20 22 4f 53 5f 52 65 61 64 56 64 |%:SWI "OS_ReadVd| 00000990 75 56 61 72 69 61 62 6c 65 73 22 0d 04 38 2b 20 |uVariables"..8+ | 000009a0 20 20 20 20 20 20 20 4c 44 52 20 52 30 2c 73 63 | LDR R0,sc| 000009b0 72 61 64 25 3a 53 54 52 20 52 30 2c 74 72 75 65 |rad%:STR R0,true| 000009c0 73 63 72 61 64 25 0d 04 42 34 20 20 20 20 20 20 |scrad%..B4 | 000009d0 20 20 4c 44 52 20 52 31 2c 73 63 72 6f 66 25 3a | LDR R1,scrof%:| 000009e0 41 44 44 20 52 30 2c 52 30 2c 52 31 3a 53 54 52 |ADD R0,R0,R1:STR| 000009f0 20 52 30 2c 73 63 72 61 64 25 0d 04 4c 1c 20 20 | R0,scrad%..L. | 00000a00 20 20 20 20 20 20 42 4c 20 20 73 74 6f 72 65 73 | BL stores| 00000a10 63 72 61 64 32 25 0d 04 56 2d 20 20 20 20 20 20 |crad2%..V- | 00000a20 20 20 41 44 44 20 52 30 2c 52 30 2c 23 26 31 34 | ADD R0,R0,#&14| 00000a30 30 30 30 3a 53 54 52 20 52 30 2c 73 63 72 61 64 |000:STR R0,scrad| 00000a40 25 2b 34 0d 04 60 16 20 20 20 20 20 20 20 20 42 |%+4..`. B| 00000a50 4c 20 20 63 6c 61 69 6d 25 0d 04 6a 2e 20 20 20 |L claim%..j. | 00000a60 20 20 20 20 20 4d 4f 56 20 52 30 2c 23 31 34 3a | MOV R0,#14:| 00000a70 4d 4f 56 20 52 31 2c 23 34 3a 53 57 49 20 22 4f |MOV R1,#4:SWI "O| 00000a80 53 5f 42 79 74 65 22 0d 04 74 1b 20 20 20 20 20 |S_Byte"..t. | 00000a90 20 20 20 4c 44 52 20 50 43 2c 5b 52 31 33 5d 2c | LDR PC,[R13],| 00000aa0 23 34 0d 04 7e 04 0d 04 88 0f 2e 63 6c 6f 73 65 |#4..~......close| 00000ab0 64 6f 77 6e 25 0d 04 92 1e 20 20 20 20 20 20 20 |down%.... | 00000ac0 20 53 54 52 20 52 31 34 2c 5b 52 31 33 2c 23 2d | STR R14,[R13,#-| 00000ad0 34 5d 21 0d 04 9c 2e 20 20 20 20 20 20 20 20 4d |4]!.... M| 00000ae0 4f 56 20 52 30 2c 23 31 33 3a 4d 4f 56 20 52 31 |OV R0,#13:MOV R1| 00000af0 2c 23 34 3a 53 57 49 20 22 4f 53 5f 42 79 74 65 |,#4:SWI "OS_Byte| 00000b00 22 0d 04 a6 18 20 20 20 20 20 20 20 20 42 4c 20 |".... BL | 00000b10 20 72 65 6c 65 61 73 65 25 0d 04 b0 1b 20 20 20 | release%.... | 00000b20 20 20 20 20 20 4c 44 52 20 50 43 2c 5b 52 31 33 | LDR PC,[R13| 00000b30 5d 2c 23 34 0d 04 ba 04 0d 04 c4 0f 2e 74 72 75 |],#4.........tru| 00000b40 65 73 63 72 61 64 25 0d 04 ce 12 20 20 20 20 20 |escrad%.... | 00000b50 20 20 20 45 51 55 44 20 30 0d 04 d8 04 0d 04 e2 | EQUD 0.......| 00000b60 0b 2e 63 6c 73 31 33 61 0d 04 ec 12 20 20 20 20 |..cls13a.... | 00000b70 20 20 20 20 45 51 55 44 20 30 0d 04 f6 04 0d 05 | EQUD 0......| 00000b80 00 0b 2e 63 6c 73 31 33 62 0d 05 0a 27 20 20 20 |...cls13b...' | 00000b90 20 20 20 20 20 45 51 55 44 20 30 3a 45 51 55 44 | EQUD 0:EQUD| 00000ba0 20 30 3a 45 51 55 44 20 30 3a 45 51 55 44 20 30 | 0:EQUD 0:EQUD 0| 00000bb0 0d 05 14 27 20 20 20 20 20 20 20 20 45 51 55 44 |...' EQUD| 00000bc0 20 30 3a 45 51 55 44 20 30 3a 45 51 55 44 20 30 | 0:EQUD 0:EQUD 0| 00000bd0 3a 45 51 55 44 20 30 0d 05 1e 27 20 20 20 20 20 |:EQUD 0...' | 00000be0 20 20 20 45 51 55 44 20 30 3a 45 51 55 44 20 30 | EQUD 0:EQUD 0| 00000bf0 3a 45 51 55 44 20 30 3a 45 51 55 44 20 30 0d 05 |:EQUD 0:EQUD 0..| 00000c00 28 12 20 20 20 20 20 20 20 20 45 51 55 44 20 30 |(. EQUD 0| 00000c10 0d 05 32 04 0d 05 3c 22 2e 63 6c 73 31 33 20 3b |..2...<".cls13 ;| 00000c20 20 43 6c 65 61 72 20 74 68 65 20 eb 20 31 33 20 | Clear the . 13 | 00000c30 73 63 72 65 65 6e 0d 05 46 23 20 20 20 20 20 20 |screen..F# | 00000c40 20 20 53 54 4d 46 44 20 52 31 33 21 2c 7b 52 30 | STMFD R13!,{R0| 00000c50 2d 52 31 32 2c 52 31 34 7d 0d 05 50 1c 20 20 20 |-R12,R14}..P. | 00000c60 20 20 20 20 20 53 54 52 20 20 20 52 31 33 2c 63 | STR R13,c| 00000c70 6c 73 31 33 61 0d 05 5a 1c 20 20 20 20 20 20 20 |ls13a..Z. | 00000c80 20 41 44 52 20 20 20 52 31 33 2c 63 6c 73 31 33 | ADR R13,cls13| 00000c90 62 0d 05 64 1f 20 20 20 20 20 20 20 20 4c 44 4d |b..d. LDM| 00000ca0 49 41 20 52 31 33 21 2c 7b 52 30 2d 52 31 32 7d |IA R13!,{R0-R12}| 00000cb0 0d 05 6e 1a 20 20 20 20 20 20 20 20 4d 4f 56 20 |..n. MOV | 00000cc0 20 20 52 31 33 2c 23 31 35 37 0d 05 78 20 20 20 | R13,#157..x | 00000cd0 20 20 20 20 20 20 4c 44 52 20 20 20 52 31 34 2c | LDR R14,| 00000ce0 74 72 75 65 73 63 72 61 64 25 0d 05 82 0b 2e 63 |truescrad%.....c| 00000cf0 6c 73 31 33 63 0d 05 8c 05 5d 0d 05 96 13 e3 20 |ls13c....]..... | 00000d00 63 6c 73 31 33 64 3d 31 20 b8 20 31 30 0d 05 a0 |cls13d=1 . 10...| 00000d10 0b 20 5b 4f 50 54 70 25 0d 05 aa 1f 20 20 20 20 |. [OPTp%.... | 00000d20 20 20 20 20 53 54 4d 49 41 20 52 31 34 21 2c 7b | STMIA R14!,{| 00000d30 52 30 2d 52 31 32 7d 0d 05 b4 06 20 5d 0d 05 be |R0-R12}.... ]...| 00000d40 05 ed 0d 05 c8 0a 5b 4f 50 54 70 25 0d 05 d2 1c |......[OPTp%....| 00000d50 20 20 20 20 20 20 20 20 53 55 42 53 20 20 52 31 | SUBS R1| 00000d60 33 2c 52 31 33 2c 23 31 0d 05 dc 18 20 20 20 20 |3,R13,#1.... | 00000d70 20 20 20 20 42 4e 45 20 20 20 63 6c 73 31 33 63 | BNE cls13c| 00000d80 0d 05 e6 1f 20 20 20 20 20 20 20 20 53 54 4d 49 |.... STMI| 00000d90 41 20 52 31 34 21 2c 7b 52 30 2d 52 31 32 7d 0d |A R14!,{R0-R12}.| 00000da0 05 f0 1f 20 20 20 20 20 20 20 20 53 54 4d 49 41 |... STMIA| 00000db0 20 52 31 34 21 2c 7b 52 30 2d 52 31 32 7d 0d 05 | R14!,{R0-R12}..| 00000dc0 fa 1f 20 20 20 20 20 20 20 20 53 54 4d 49 41 20 |.. STMIA | 00000dd0 52 31 34 21 2c 7b 52 30 2d 52 31 32 7d 0d 06 04 |R14!,{R0-R12}...| 00000de0 1f 20 20 20 20 20 20 20 20 53 54 4d 49 41 20 52 |. STMIA R| 00000df0 31 34 21 2c 7b 52 30 2d 52 31 32 7d 0d 06 0e 1f |14!,{R0-R12}....| 00000e00 20 20 20 20 20 20 20 20 53 54 4d 49 41 20 52 31 | STMIA R1| 00000e10 34 21 2c 7b 52 30 2d 52 31 32 7d 0d 06 18 1e 20 |4!,{R0-R12}.... | 00000e20 20 20 20 20 20 20 20 53 54 4d 49 41 20 52 31 34 | STMIA R14| 00000e30 21 2c 7b 52 30 2d 52 34 7d 0d 06 22 1c 20 20 20 |!,{R0-R4}..". | 00000e40 20 20 20 20 20 4c 44 52 20 20 20 52 31 33 2c 63 | LDR R13,c| 00000e50 6c 73 31 33 61 0d 06 2c 22 20 20 20 20 20 20 20 |ls13a..," | 00000e60 20 4c 44 4d 46 44 20 52 31 33 21 2c 7b 52 30 2d | LDMFD R13!,{R0-| 00000e70 52 31 32 2c 50 43 7d 0d 06 36 04 0d 06 40 3c 2e |R12,PC}..6...@<.| 00000e80 73 63 61 6c 65 25 20 4f 50 54 20 a4 73 70 61 63 |scale% OPT .spac| 00000e90 65 28 74 79 25 2a 34 2b 34 2c 70 25 29 20 20 20 |e(ty%*4+4,p%) | 00000ea0 20 20 3b 20 53 63 61 6c 65 20 61 74 20 74 68 69 | ; Scale at thi| 00000eb0 73 20 70 6f 69 6e 74 0d 06 4a 3c 2e 79 61 74 77 |s point..J<.yatw| 00000ec0 25 20 20 4f 50 54 20 a4 73 70 61 63 65 28 74 79 |% OPT .space(ty| 00000ed0 25 2a 34 2b 34 2c 70 25 29 20 20 20 20 20 3b 20 |%*4+4,p%) ; | 00000ee0 59 20 63 6f 6f 72 64 69 6e 61 74 65 20 73 63 61 |Y coordinate sca| 00000ef0 6c 65 64 0d 06 54 36 2e 79 63 6f 6c 25 20 20 4f |led..T6.ycol% O| 00000f00 50 54 20 a4 73 70 61 63 65 28 74 79 25 2b 31 2c |PT .space(ty%+1,| 00000f10 70 25 29 3a 41 4c 49 47 4e 20 3b 20 43 6f 6c 6f |p%):ALIGN ; Colo| 00000f20 75 72 20 73 63 61 6c 65 64 0d 06 5e 04 0d 06 68 |ur scaled..^...h| 00000f30 3e 2e 74 65 78 74 25 20 20 4f 50 54 20 a4 73 70 |>.text% OPT .sp| 00000f40 61 63 65 28 33 32 2a 72 6c 69 6e 65 73 2c 70 25 |ace(32*rlines,p%| 00000f50 29 20 20 20 3b 20 4c 69 6e 65 73 20 6f 66 20 33 |) ; Lines of 3| 00000f60 32 20 63 68 72 73 20 65 61 63 68 0d 06 72 46 2e |2 chrs each..rF.| 00000f70 74 77 69 64 25 20 20 4f 50 54 20 a4 73 70 61 63 |twid% OPT .spac| 00000f80 65 28 34 20 2a 72 6c 69 6e 65 73 2c 70 25 29 20 |e(4 *rlines,p%) | 00000f90 20 20 3b 20 57 69 64 74 68 20 6f 66 20 65 61 63 | ; Width of eac| 00000fa0 68 20 6c 69 6e 65 2c 20 73 63 61 6c 65 64 20 75 |h line, scaled u| 00000fb0 70 0d 06 7c 04 0d 06 86 11 2e 73 74 6f 72 65 73 |p..|......stores| 00000fc0 63 72 61 64 32 25 0d 06 90 1a 20 20 20 20 20 20 |crad2%.... | 00000fd0 20 20 53 54 52 20 52 30 2c 73 63 72 61 64 32 25 | STR R0,scrad2%| 00000fe0 0d 06 9a 16 20 20 20 20 20 20 20 20 4d 4f 56 20 |.... MOV | 00000ff0 50 43 2c 52 31 34 0d 06 a4 04 0d 06 ae 1b 2e 6d |PC,R14.........m| 00001000 62 78 25 20 20 20 20 20 20 45 51 55 44 20 62 78 |bx% EQUD bx| 00001010 25 3c 3c 31 32 0d 06 b8 15 2e 73 63 72 61 64 32 |%<<12.....scrad2| 00001020 25 20 20 20 45 51 55 44 20 30 0d 06 c2 1a 2e 6c |% EQUD 0.....l| 00001030 69 6e 65 73 25 20 20 20 20 45 51 55 44 20 72 6c |ines% EQUD rl| 00001040 69 6e 65 73 0d 06 cc 19 2e 79 61 74 77 61 64 72 |ines.....yatwadr| 00001050 25 20 20 45 51 55 44 20 79 61 74 77 25 0d 06 d6 |% EQUD yatw%...| 00001060 19 2e 74 77 69 64 61 64 72 25 20 20 45 51 55 44 |..twidadr% EQUD| 00001070 20 74 77 69 64 25 0d 06 e0 19 2e 79 63 6f 6c 61 | twid%.....ycola| 00001080 64 72 25 20 20 45 51 55 44 20 79 63 6f 6c 25 0d |dr% EQUD ycol%.| 00001090 06 ea 19 2e 74 65 78 74 61 64 72 25 20 20 45 51 |....textadr% EQ| 000010a0 55 44 20 74 65 78 74 25 0d 06 f4 19 2e 62 75 66 |UD text%.....buf| 000010b0 66 61 64 72 25 20 20 45 51 55 44 20 62 75 66 66 |fadr% EQUD buff| 000010c0 25 0d 06 fe 1a 2e 73 63 61 6c 65 61 64 72 25 20 |%.....scaleadr% | 000010d0 45 51 55 44 20 73 63 61 6c 65 25 0d 07 08 19 2e |EQUD scale%.....| 000010e0 73 69 7a 65 61 64 72 25 20 20 45 51 55 44 20 73 |sizeadr% EQUD s| 000010f0 69 7a 65 25 0d 07 12 04 0d 07 1c 42 2e 64 72 61 |ize%.......B.dra| 00001100 77 73 63 72 20 3b 20 44 72 61 77 20 74 65 78 74 |wscr ; Draw text| 00001110 20 69 6e 20 73 6c 6f 70 65 64 20 70 6f 73 69 74 | in sloped posit| 00001120 69 6f 6e 2c 20 61 6c 6c 20 6c 69 6e 65 73 20 74 |ion, all lines t| 00001130 6f 70 20 74 6f 20 62 61 73 65 0d 07 26 16 53 54 |op to base..&.ST| 00001140 52 20 52 31 34 2c 5b 52 31 33 2c 23 2d 34 5d 21 |R R14,[R13,#-4]!| 00001150 0d 07 30 29 4d 4f 56 20 52 31 34 2c 23 74 79 25 |..0)MOV R14,#ty%| 00001160 20 3b 20 4c 6f 6f 70 20 66 72 6f 6d 20 74 79 20 | ; Loop from ty | 00001170 64 6f 77 6e 20 74 6f 20 30 0d 07 3a 0a 2e 6c 6f |down to 0..:..lo| 00001180 6f 70 25 0d 07 44 15 20 4c 44 52 20 20 52 38 2c |op%..D. LDR R8,| 00001190 79 61 74 77 61 64 72 25 0d 07 4e 4a 20 4c 44 52 |yatwadr%..NJ LDR| 000011a0 20 20 52 38 2c 5b 52 38 2c 52 31 34 2c 4c 53 4c | R8,[R8,R14,LSL| 000011b0 23 32 5d 20 20 20 20 20 20 20 20 20 20 20 20 20 |#2] | 000011c0 20 20 3b 20 52 38 20 3d 20 59 20 63 6f 6f 72 64 | ; R8 = Y coord| 000011d0 69 6e 61 74 65 20 6f 66 20 74 68 69 73 20 6c 69 |inate of this li| 000011e0 6e 65 0d 07 58 11 20 4c 44 52 20 20 52 31 2c 70 |ne..X. LDR R1,p| 000011f0 6f 73 25 0d 07 62 42 20 53 55 42 53 20 52 38 2c |os%..bB SUBS R8,| 00001200 52 38 2c 52 31 20 20 20 20 20 20 20 20 20 20 20 |R8,R1 | 00001210 20 20 20 20 20 20 20 20 20 20 20 20 20 3b 20 53 | ; S| 00001220 75 62 74 72 61 63 74 20 74 65 78 74 20 70 6f 73 |ubtract text pos| 00001230 69 74 69 6f 6e 0d 07 6c 37 20 42 47 54 20 20 6e |ition..l7 BGT n| 00001240 65 78 74 25 20 20 20 20 20 20 20 20 20 20 20 20 |ext% | 00001250 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 3b | ;| 00001260 20 4f 66 66 20 74 68 65 20 74 6f 70 0d 07 76 45 | Off the top..vE| 00001270 20 52 53 42 20 20 52 31 30 2c 52 38 2c 23 30 20 | RSB R10,R8,#0 | 00001280 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00001290 20 20 20 20 20 20 3b 20 46 6c 69 70 20 6f 76 65 | ; Flip ove| 000012a0 72 20 74 6f 20 72 69 67 68 74 20 77 61 79 20 75 |r to right way u| 000012b0 70 0d 07 80 43 20 4d 4f 56 20 20 52 31 30 2c 52 |p...C MOV R10,R| 000012c0 31 30 2c 4c 53 52 23 35 20 20 20 20 20 20 20 20 |10,LSR#5 | 000012d0 20 20 20 20 20 20 20 20 20 20 20 3b 20 52 31 30 | ; R10| 000012e0 20 3d 20 4c 69 6e 65 20 6f 66 20 74 65 78 74 20 | = Line of text | 000012f0 68 65 72 65 0d 07 8a 4a 20 80 20 20 52 38 2c 52 |here...J . R8,R| 00001300 38 2c 23 33 31 20 20 20 20 20 20 20 20 20 20 20 |8,#31 | 00001310 20 20 20 20 20 20 20 20 20 20 20 20 3b 20 52 38 | ; R8| 00001320 20 3d 20 4f 66 66 73 65 74 20 77 69 74 68 69 6e | = Offset within| 00001330 20 74 65 78 74 20 6c 69 6e 65 20 28 59 29 0d 07 | text line (Y)..| 00001340 94 49 20 4c 44 52 20 20 52 31 2c 6c 69 6e 65 73 |.I LDR R1,lines| 00001350 25 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |% | 00001360 20 20 20 20 20 20 20 20 3b 20 52 31 20 3d 20 4e | ; R1 = N| 00001370 75 6d 62 65 72 20 6f 66 20 6c 69 6e 65 73 20 69 |umber of lines i| 00001380 6e 20 74 6f 74 61 6c 0d 07 9e 3a 20 43 4d 50 20 |n total...: CMP | 00001390 20 52 31 30 2c 52 31 3a 42 47 45 20 6e 65 78 74 | R10,R1:BGE next| 000013a0 25 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |% | 000013b0 20 3b 20 4f 66 66 20 74 68 65 20 62 6f 74 74 6f | ; Off the botto| 000013c0 6d 0d 07 a8 15 20 4c 44 52 20 20 52 36 2c 74 77 |m.... LDR R6,tw| 000013d0 69 64 61 64 72 25 0d 07 b2 44 20 4c 44 52 20 20 |idadr%...D LDR | 000013e0 52 31 32 2c 5b 52 36 2c 52 31 30 2c 4c 53 4c 23 |R12,[R6,R10,LSL#| 000013f0 32 5d 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |2] | 00001400 3b 20 52 31 32 20 3d 20 57 69 64 74 68 20 6f 66 |; R12 = Width of| 00001410 20 74 68 69 73 20 6c 69 6e 65 0d 07 bc 38 20 4d | this line...8 M| 00001420 4f 56 53 20 52 31 32 2c 52 31 32 3a 42 45 51 20 |OVS R12,R12:BEQ | 00001430 6e 65 78 74 25 20 20 20 20 20 20 20 20 20 20 20 |next% | 00001440 20 20 20 20 3b 20 41 20 62 6c 61 6e 6b 20 6c 69 | ; A blank li| 00001450 6e 65 0d 07 c6 15 20 4c 44 52 20 20 52 36 2c 79 |ne.... LDR R6,y| 00001460 63 6f 6c 61 64 72 25 0d 07 d0 45 20 4c 44 52 42 |coladr%...E LDRB| 00001470 20 52 36 2c 5b 52 36 2c 52 31 34 5d 20 20 20 20 | R6,[R6,R14] | 00001480 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00001490 20 3b 20 52 36 20 3d 20 43 6f 6c 6f 75 72 20 61 | ; R6 = Colour a| 000014a0 74 20 74 68 69 73 20 64 65 70 74 68 0d 07 da 15 |t this depth....| 000014b0 20 4c 44 52 20 20 52 34 2c 74 65 78 74 61 64 72 | LDR R4,textadr| 000014c0 25 0d 07 e4 4c 20 41 44 44 20 20 52 34 2c 52 34 |%...L ADD R4,R4| 000014d0 2c 52 31 30 2c 4c 53 4c 23 35 20 20 20 20 20 20 |,R10,LSL#5 | 000014e0 20 20 20 20 20 20 20 20 20 20 20 3b 20 52 34 20 | ; R4 | 000014f0 3d 20 41 64 64 72 65 73 73 20 6f 66 20 74 68 65 |= Address of the| 00001500 20 6c 69 6e 65 20 6f 66 20 74 65 78 74 0d 07 ee | line of text...| 00001510 47 20 4c 44 52 42 20 52 31 2c 5b 52 34 5d 2c 23 |G LDRB R1,[R4],#| 00001520 31 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |1 | 00001530 20 20 20 20 20 20 20 3b 20 52 31 20 3d 20 4c 65 | ; R1 = Le| 00001540 6e 67 74 68 20 6f 66 20 6c 69 6e 65 20 69 6e 20 |ngth of line in | 00001550 63 68 72 73 0d 07 f8 49 20 52 53 42 20 20 52 31 |chrs...I RSB R1| 00001560 30 2c 52 38 2c 23 33 31 20 20 20 20 20 20 20 20 |0,R8,#31 | 00001570 20 20 20 20 20 20 20 20 20 20 20 20 20 20 3b 20 | ; | 00001580 50 6f 73 69 74 69 6f 6e 20 77 69 74 68 20 6c 65 |Position with le| 00001590 74 74 65 72 20 72 65 76 65 72 73 65 64 0d 08 02 |tter reversed...| 000015a0 15 20 4c 44 52 20 20 52 38 2c 62 75 66 66 61 64 |. LDR R8,buffad| 000015b0 72 25 0d 08 0c 46 20 41 44 44 20 20 52 31 30 2c |r%...F ADD R10,| 000015c0 52 38 2c 52 31 30 2c 4c 53 4c 23 32 20 20 20 20 |R8,R10,LSL#2 | 000015d0 20 20 20 20 20 20 20 20 20 20 20 20 3b 20 4f 66 | ; Of| 000015e0 66 73 65 74 20 74 6f 20 77 69 74 68 69 6e 20 66 |fset to within f| 000015f0 6f 6e 74 20 64 61 74 61 0d 08 16 16 20 4c 44 52 |ont data.... LDR| 00001600 20 20 52 37 2c 73 63 61 6c 65 61 64 72 25 0d 08 | R7,scaleadr%..| 00001610 20 3d 20 4c 44 52 20 20 52 35 2c 5b 52 37 2c 52 | = LDR R5,[R7,R| 00001620 31 34 2c 4c 53 4c 23 32 5d 20 20 20 20 20 20 20 |14,LSL#2] | 00001630 20 20 20 20 20 20 20 20 3b 20 52 35 20 3d 20 53 | ; R5 = S| 00001640 63 61 6c 65 20 66 61 63 74 6f 72 0d 08 2a 14 20 |cale factor..*. | 00001650 4d 55 4c 20 20 52 31 31 2c 52 31 32 2c 52 35 0d |MUL R11,R12,R5.| 00001660 08 34 48 20 4d 4f 56 20 20 52 37 2c 52 31 31 2c |.4H MOV R7,R11,| 00001670 4c 53 52 23 31 20 20 20 20 20 20 20 20 20 20 20 |LSR#1 | 00001680 20 20 20 20 20 20 20 20 20 3b 20 52 37 20 3d 20 | ; R7 = | 00001690 57 69 64 74 68 20 73 63 61 6c 65 64 20 74 6f 20 |Width scaled to | 000016a0 74 68 65 20 72 6f 77 0d 08 3e 4c 20 52 53 42 20 |the row..>L RSB | 000016b0 20 52 37 2c 52 37 2c 23 31 36 30 3c 3c 31 33 20 | R7,R7,#160<<13 | 000016c0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 000016d0 20 3b 20 46 69 6e 64 20 73 74 61 72 74 69 6e 67 | ; Find starting| 000016e0 20 70 6f 69 6e 74 20 6f 6e 20 6c 65 66 74 20 28 | point on left (| 000016f0 73 78 29 0d 08 48 47 20 4c 44 52 20 20 52 32 2c |sx)..HG LDR R2,| 00001700 73 63 72 61 64 32 25 20 20 20 20 20 20 20 20 20 |scrad2% | 00001710 20 20 20 20 20 20 20 20 20 20 20 20 20 3b 20 52 | ; R| 00001720 32 20 3d 20 41 64 64 72 65 73 73 20 6f 66 20 62 |2 = Address of b| 00001730 6f 74 74 6f 6d 20 6c 65 66 74 0d 08 52 19 20 53 |ottom left..R. S| 00001740 55 42 20 20 52 32 2c 52 32 2c 52 31 34 2c 4c 53 |UB R2,R2,R14,LS| 00001750 4c 23 36 0d 08 5c 3b 20 53 55 42 20 20 52 32 2c |L#6..\; SUB R2,| 00001760 52 32 2c 52 31 34 2c 4c 53 4c 23 38 20 20 20 20 |R2,R14,LSL#8 | 00001770 20 20 20 20 20 20 20 20 20 20 20 20 20 3b 20 53 | ; S| 00001780 75 62 74 72 61 63 74 20 73 79 2a 33 32 30 0d 08 |ubtract sy*320..| 00001790 66 15 20 4c 44 52 20 20 52 30 2c 73 69 7a 65 61 |f. LDR R0,sizea| 000017a0 64 72 25 0d 08 70 10 20 4d 4f 56 20 20 52 31 31 |dr%..p. MOV R11| 000017b0 2c 23 31 0d 08 7a 0c 20 2e 6c 6f 6f 70 32 25 0d |,#1..z. .loop2%.| 000017c0 08 84 43 20 20 4c 44 52 42 20 52 33 2c 5b 52 34 |..C LDRB R3,[R4| 000017d0 5d 2c 23 31 20 20 20 20 20 20 20 20 20 20 20 20 |],#1 | 000017e0 20 20 20 20 20 20 20 20 20 3b 20 52 33 20 3d 20 | ; R3 = | 000017f0 43 68 72 20 66 72 6f 6d 20 74 65 78 74 20 64 61 |Chr from text da| 00001800 74 61 0d 08 8e 43 20 20 4c 44 52 42 20 52 31 32 |ta...C LDRB R12| 00001810 2c 5b 52 30 2c 52 33 5d 20 20 20 20 20 20 20 20 |,[R0,R3] | 00001820 20 20 20 20 20 20 20 20 20 20 20 20 3b 20 52 31 | ; R1| 00001830 32 20 3d 20 57 69 64 74 68 20 6f 66 20 74 68 69 |2 = Width of thi| 00001840 73 20 63 68 72 0d 08 98 4b 20 20 41 44 44 20 20 |s chr...K ADD | 00001850 52 38 2c 52 31 30 2c 52 33 2c 4c 53 4c 23 37 20 |R8,R10,R3,LSL#7 | 00001860 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 3b | ;| 00001870 20 52 38 20 20 3d 20 50 6f 73 69 74 69 6f 6e 20 | R8 = Position | 00001880 77 69 74 68 69 6e 20 66 6f 6e 74 20 64 61 74 61 |within font data| 00001890 0d 08 a2 3b 20 20 4c 44 52 42 20 52 39 2c 5b 52 |...; LDRB R9,[R| 000018a0 38 5d 2c 23 31 20 20 20 20 20 20 20 20 20 20 20 |8],#1 | 000018b0 20 20 20 20 20 20 20 20 20 20 3b 20 52 39 20 20 | ; R9 | 000018c0 3d 20 46 6f 6e 74 20 62 79 74 65 0d 08 ac 3e 20 |= Font byte...> | 000018d0 20 4d 4f 56 20 20 52 33 2c 23 37 20 20 20 20 20 | MOV R3,#7 | 000018e0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 000018f0 20 20 20 20 20 3b 20 52 33 20 20 3d 20 42 69 74 | ; R3 = Bit| 00001900 20 74 6f 20 63 68 65 63 6b 0d 08 b6 0d 20 20 2e | to check.... .| 00001910 6c 6f 6f 70 31 25 0d 08 c0 36 20 20 20 41 44 44 |loop1%...6 ADD| 00001920 20 20 52 37 2c 52 37 2c 52 35 20 20 20 20 20 20 | R7,R7,R5 | 00001930 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00001940 3b 20 4d 6f 76 65 20 61 6c 6f 6e 67 0d 08 ca 40 |; Move along...@| 00001950 20 20 20 54 53 54 20 20 52 31 31 2c 52 39 2c 4c | TST R11,R9,L| 00001960 53 52 20 52 33 20 20 20 20 20 20 20 20 20 20 20 |SR R3 | 00001970 20 20 20 20 20 20 3b 20 45 78 61 6d 69 6e 65 20 | ; Examine | 00001980 62 69 74 20 52 33 20 6f 66 20 52 39 0d 08 d4 3f |bit R3 of R9...?| 00001990 20 20 20 42 45 51 20 20 6e 6f 70 69 78 25 20 20 | BEQ nopix% | 000019a0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 000019b0 20 20 20 20 20 20 3b 20 4e 6f 20 70 69 78 65 6c | ; No pixel| 000019c0 20 68 65 72 65 20 6d 61 74 65 79 0d 08 de 45 20 | here matey...E | 000019d0 20 20 43 4d 50 20 20 52 37 2c 23 33 32 30 3c 3c | CMP R7,#320<<| 000019e0 31 33 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |13 | 000019f0 20 20 20 20 20 3b 20 43 68 65 63 6b 20 6e 6f 74 | ; Check not| 00001a00 20 6f 66 66 20 65 69 74 68 65 72 20 65 64 67 65 | off either edge| 00001a10 0d 08 e8 37 20 20 20 53 54 52 43 43 42 20 52 36 |...7 STRCCB R6| 00001a20 2c 5b 52 32 2c 52 37 2c 4c 53 52 23 31 33 5d 20 |,[R2,R7,LSR#13] | 00001a30 20 20 20 20 20 20 20 20 20 20 3b 20 50 6c 6f 74 | ; Plot| 00001a40 20 70 69 78 65 6c 2e 0d 08 f2 0e 20 20 20 2e 6e | pixel..... .n| 00001a50 6f 70 69 78 25 0d 08 fc 34 20 20 20 53 55 42 53 |opix%...4 SUBS| 00001a60 20 20 20 52 33 2c 52 33 2c 23 31 20 20 20 20 20 | R3,R3,#1 | 00001a70 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 3b | ;| 00001a80 20 4e 65 78 74 20 62 69 74 0d 09 06 47 20 20 20 | Next bit...G | 00001a90 4d 4f 56 4d 49 20 20 52 33 2c 23 37 20 20 20 20 |MOVMI R3,#7 | 00001aa0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00001ab0 20 20 20 3b 20 47 6f 6e 65 20 6f 66 66 20 62 79 | ; Gone off by| 00001ac0 74 65 2c 20 73 6f 20 72 65 73 65 74 20 62 69 74 |te, so reset bit| 00001ad0 0d 09 10 39 20 20 20 4c 44 52 4d 49 42 20 52 39 |...9 LDRMIB R9| 00001ae0 2c 5b 52 38 5d 2c 23 31 20 20 20 20 20 20 20 20 |,[R8],#1 | 00001af0 20 20 20 20 20 20 20 20 20 20 3b 20 47 65 74 20 | ; Get | 00001b00 6e 65 78 74 20 62 79 74 65 0d 09 1a 18 20 20 20 |next byte.... | 00001b10 53 55 42 53 20 20 20 52 31 32 2c 52 31 32 2c 23 |SUBS R12,R12,#| 00001b20 31 0d 09 24 3e 20 20 42 50 4c 20 20 20 6c 6f 6f |1..$> BPL loo| 00001b30 70 31 25 20 20 20 20 20 20 20 20 20 20 20 20 20 |p1% | 00001b40 20 20 20 20 20 20 20 20 20 20 20 3b 20 4c 6f 6f | ; Loo| 00001b50 70 20 66 6f 72 20 74 68 65 20 77 69 64 74 68 0d |p for the width.| 00001b60 09 2e 36 20 20 41 44 44 20 20 20 52 37 2c 52 37 |..6 ADD R7,R7| 00001b70 2c 52 35 20 20 20 20 20 20 20 20 20 20 20 20 20 |,R5 | 00001b80 20 20 20 20 20 20 20 20 20 3b 20 47 61 70 20 61 | ; Gap a| 00001b90 74 20 65 6e 64 0d 09 38 3e 20 20 53 55 42 53 20 |t end..8> SUBS | 00001ba0 20 52 31 2c 52 31 2c 23 31 20 20 20 20 20 20 20 | R1,R1,#1 | 00001bb0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 3b | ;| 00001bc0 20 4f 6e 65 20 6c 65 73 73 20 63 68 72 20 74 6f | One less chr to| 00001bd0 20 64 6f 0d 09 42 3b 20 42 4e 45 20 6c 6f 6f 70 | do..B; BNE loop| 00001be0 32 25 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |2% | 00001bf0 20 20 20 20 20 20 20 20 20 20 20 20 20 3b 20 54 | ; T| 00001c00 68 65 72 65 20 61 72 65 20 6d 6f 72 65 21 0d 09 |here are more!..| 00001c10 4c 0b 20 2e 6e 65 78 74 25 0d 09 56 14 20 53 55 |L. .next%..V. SU| 00001c20 42 53 20 52 31 34 2c 52 31 34 2c 23 31 0d 09 60 |BS R14,R14,#1..`| 00001c30 47 42 50 4c 20 20 6c 6f 6f 70 25 20 20 20 20 20 |GBPL loop% | 00001c40 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00001c50 20 20 20 20 20 20 20 3b 20 47 6f 20 61 6e 64 20 | ; Go and | 00001c60 64 6f 20 74 68 65 20 6e 65 78 74 20 6c 69 6e 65 |do the next line| 00001c70 20 6e 6f 77 0d 09 6a 14 4c 44 52 20 20 50 43 2c | now..j.LDR PC,| 00001c80 5b 52 31 33 5d 2c 23 34 0d 09 74 04 0d 09 7e 10 |[R13],#4..t...~.| 00001c90 2e 70 6f 73 25 20 45 51 55 44 20 30 0d 09 88 04 |.pos% EQUD 0....| 00001ca0 0d 09 92 0d 2e 72 75 6e 6c 6f 6f 70 25 0d 09 9c |.....runloop%...| 00001cb0 17 53 54 52 20 20 52 31 34 2c 5b 52 31 33 2c 23 |.STR R14,[R13,#| 00001cc0 2d 34 5d 21 0d 09 a6 0f 42 4c 20 20 20 73 65 74 |-4]!....BL set| 00001cd0 75 70 25 0d 09 b0 28 4d 4f 56 20 20 52 30 2c 23 |up%...(MOV R0,#| 00001ce0 31 31 33 3a 4d 4f 56 20 52 31 2c 23 32 3a 53 57 |113:MOV R1,#2:SW| 00001cf0 49 20 22 4f 53 5f 42 79 74 65 22 0d 09 ba 23 4c |I "OS_Byte"...#L| 00001d00 44 52 20 20 52 30 2c 73 63 72 63 6e 74 25 3a 53 |DR R0,scrcnt%:S| 00001d10 54 52 20 52 30 2c 6c 61 73 74 63 6e 74 25 0d 09 |TR R0,lastcnt%..| 00001d20 c4 04 0d 09 ce 12 2e 72 65 70 65 61 74 5f 70 6f |.......repeat_po| 00001d30 69 6e 74 25 0d 09 d8 0e 4d 4f 56 20 20 52 30 2c |int%....MOV R0,| 00001d40 23 30 0d 09 e2 10 53 54 52 20 20 52 30 2c 70 6f |#0....STR R0,po| 00001d50 73 25 0d 09 ec 04 0d 09 f6 0a 2e 6c 6f 6f 70 25 |s%.........loop%| 00001d60 0d 0a 00 04 0d 0a 0a 25 20 42 4c 20 20 63 6c 73 |.......% BL cls| 00001d70 31 33 20 20 20 20 20 3b 20 43 6c 65 61 72 20 74 |13 ; Clear t| 00001d80 68 65 20 73 63 72 65 65 6e 0d 0a 14 22 20 42 4c |he screen..." BL| 00001d90 20 20 64 72 61 77 73 63 72 20 20 20 3b 20 44 72 | drawscr ; Dr| 00001da0 61 77 20 74 68 65 20 74 65 78 74 0d 0a 1e 23 20 |aw the text...# | 00001db0 42 4c 20 20 70 6c 6f 74 73 74 61 72 73 20 3b 20 |BL plotstars ; | 00001dc0 50 6c 6f 74 20 74 68 65 20 73 74 61 72 73 0d 0a |Plot the stars..| 00001dd0 28 04 0d 0a 32 1d 20 3b 20 43 6f 75 6e 74 20 73 |(...2. ; Count s| 00001de0 63 72 65 65 6e 20 72 65 66 72 65 73 68 65 73 0d |creen refreshes.| 00001df0 0a 3c 14 20 4c 44 52 20 52 31 2c 6c 61 73 74 63 |.<. LDR R1,lastc| 00001e00 6e 74 25 0d 0a 46 0c 20 2e 6c 6f 6f 70 31 25 0d |nt%..F. .loop1%.| 00001e10 0a 50 14 20 20 4c 44 52 20 52 30 2c 73 63 72 63 |.P. LDR R0,scrc| 00001e20 6e 74 25 0d 0a 5a 12 20 20 53 55 42 20 52 32 2c |nt%..Z. SUB R2,| 00001e30 52 30 2c 52 31 0d 0a 64 14 20 20 43 4d 50 20 52 |R0,R1..d. CMP R| 00001e40 32 2c 23 73 70 65 65 64 25 0d 0a 6e 0f 20 42 4c |2,#speed%..n. BL| 00001e50 54 20 6c 6f 6f 70 31 25 0d 0a 78 13 20 4c 44 52 |T loop1%..x. LDR| 00001e60 20 52 30 2c 73 63 72 63 6e 74 25 0d 0a 82 0c 20 | R0,scrcnt%.... | 00001e70 2e 6c 6f 6f 70 31 25 0d 0a 8c 14 20 20 4c 44 52 |.loop1%.... LDR| 00001e80 20 52 31 2c 73 63 72 63 6e 74 25 0d 0a 96 0f 20 | R1,scrcnt%.... | 00001e90 20 54 45 51 20 52 30 2c 52 31 0d 0a a0 0f 20 42 | TEQ R0,R1.... B| 00001ea0 45 51 20 6c 6f 6f 70 31 25 0d 0a aa 14 20 53 54 |EQ loop1%.... ST| 00001eb0 52 20 52 31 2c 6c 61 73 74 63 6e 74 25 0d 0a b4 |R R1,lastcnt%...| 00001ec0 04 0d 0a be 14 20 42 4c 20 20 73 77 61 70 73 63 |..... BL swapsc| 00001ed0 72 61 64 73 25 0d 0a c8 04 0d 0a d2 10 20 4c 44 |rads%........ LD| 00001ee0 52 20 52 30 2c 70 6f 73 25 0d 0a dc 11 20 41 44 |R R0,pos%.... AD| 00001ef0 44 20 52 30 2c 52 30 2c 23 32 0d 0a e6 10 20 53 |D R0,R0,#2.... S| 00001f00 54 52 20 52 30 2c 70 6f 73 25 0d 0a f0 3d 20 53 |TR R0,pos%...= S| 00001f10 57 49 20 22 4f 53 5f 52 65 61 64 45 73 63 61 70 |WI "OS_ReadEscap| 00001f20 65 53 74 61 74 65 22 20 3b 20 43 68 65 63 6b 20 |eState" ; Check | 00001f30 69 66 20 45 73 63 20 68 61 73 20 62 65 65 6e 20 |if Esc has been | 00001f40 70 72 65 73 73 65 64 0d 0a fa 10 20 42 43 53 20 |pressed.... BCS | 00001f50 66 69 6e 69 74 6f 25 0d 0b 04 14 20 4c 44 52 20 |finito%.... LDR | 00001f60 52 31 2c 74 65 78 74 65 6e 64 25 0d 0b 0e 0e 20 |R1,textend%.... | 00001f70 43 4d 50 20 52 30 2c 52 31 0d 0b 18 0d 42 4c 54 |CMP R0,R1....BLT| 00001f80 20 6c 6f 6f 70 25 0d 0b 22 04 0d 0b 2c 05 5d 0d | loop%.."...,.].| 00001f90 0b 36 0f e7 20 72 65 70 65 61 74 25 20 8c 0d 0b |.6.. repeat% ...| 00001fa0 40 0d 20 5b 20 4f 50 54 20 70 25 0d 0b 4a 16 20 |@. [ OPT p%..J. | 00001fb0 20 20 42 20 72 65 70 65 61 74 5f 70 6f 69 6e 74 | B repeat_point| 00001fc0 25 0d 0b 54 06 20 5d 0d 0b 5e 05 cd 0d 0b 68 0c |%..T. ]..^....h.| 00001fd0 5b 20 4f 50 54 20 70 25 0d 0b 72 04 0d 0b 7c 0c |[ OPT p%..r...|.| 00001fe0 2e 66 69 6e 69 74 6f 25 0d 0b 86 12 42 4c 20 20 |.finito%....BL | 00001ff0 63 6c 6f 73 65 64 6f 77 6e 25 0d 0b 90 13 4c 44 |closedown%....LD| 00002000 52 20 50 43 2c 5b 52 31 33 5d 2c 23 34 0d 0b 9a |R PC,[R13],#4...| 00002010 04 0d 0b a4 14 2e 74 65 78 74 65 6e 64 25 20 45 |......textend% E| 00002020 51 55 44 20 30 0d 0b ae 04 0d 0b b8 14 2e 6c 61 |QUD 0.........la| 00002030 73 74 63 6e 74 25 20 45 51 55 44 20 30 0d 0b c2 |stcnt% EQUD 0...| 00002040 4c 2e 63 6c 61 69 6d 25 20 20 20 4d 4f 56 20 52 |L.claim% MOV R| 00002050 30 2c 23 26 31 30 3a 41 44 52 20 52 31 2c 73 63 |0,#&10:ADR R1,sc| 00002060 72 69 6e 74 25 3a 4d 4f 56 20 52 32 2c 23 30 3a |rint%:MOV R2,#0:| 00002070 53 57 49 20 22 4f 53 5f 43 6c 61 69 6d 22 3a 4d |SWI "OS_Claim":M| 00002080 4f 56 20 50 43 2c 52 31 34 0d 0b cc 4e 2e 72 65 |OV PC,R14...N.re| 00002090 6c 65 61 73 65 25 20 4d 4f 56 20 52 30 2c 23 26 |lease% MOV R0,#&| 000020a0 31 30 3a 41 44 52 20 52 31 2c 73 63 72 69 6e 74 |10:ADR R1,scrint| 000020b0 25 3a 4d 4f 56 20 52 32 2c 23 30 3a 53 57 49 20 |%:MOV R2,#0:SWI | 000020c0 22 4f 53 5f 52 65 6c 65 61 73 65 22 3a 4d 4f 56 |"OS_Release":MOV| 000020d0 20 50 43 2c 52 31 34 0d 0b d6 14 2e 73 63 72 63 | PC,R14.....scrc| 000020e0 6e 74 25 20 20 45 51 55 44 20 30 0d 0b e0 04 0d |nt% EQUD 0.....| 000020f0 0b ea 2c 2e 73 63 72 69 6e 74 25 20 3b 20 43 61 |..,.scrint% ; Ca| 00002100 6c 6c 65 64 20 65 76 65 72 79 20 73 63 72 65 65 |lled every scree| 00002110 6e 20 69 6e 74 65 72 72 75 70 74 0d 0b f4 1d 20 |n interrupt.... | 00002120 43 4d 50 20 20 20 52 30 2c 23 34 3a 4d 4f 56 4e |CMP R0,#4:MOVN| 00002130 45 20 50 43 2c 52 31 34 0d 0b fe 18 20 53 54 4d |E PC,R14.... STM| 00002140 46 44 20 52 31 33 21 2c 7b 52 30 2c 52 31 34 7d |FD R13!,{R0,R14}| 00002150 0d 0c 08 15 20 4c 44 52 20 20 20 52 30 2c 73 63 |.... LDR R0,sc| 00002160 72 63 6e 74 25 0d 0c 12 13 20 41 44 44 20 20 20 |rcnt%.... ADD | 00002170 52 30 2c 52 30 2c 23 31 0d 0c 1c 15 20 53 54 52 |R0,R0,#1.... STR| 00002180 20 20 20 52 30 2c 73 63 72 63 6e 74 25 0d 0c 26 | R0,scrcnt%..&| 00002190 17 20 4c 44 4d 46 44 20 52 31 33 21 2c 7b 52 30 |. LDMFD R13!,{R0| 000021a0 2c 50 43 7d 0d 0c 30 04 0d 0c 3a 05 5d 0d 0c 44 |,PC}..0...:.]..D| 000021b0 05 ed 0d 0c 4e 3a c8 99 20 22 4f 53 5f 46 69 6c |....N:.. "OS_Fil| 000021c0 65 22 2c 20 26 46 46 2c 20 22 3c 54 65 78 74 41 |e", &FF, "<TextA| 000021d0 77 61 79 24 44 69 72 3e 2e 46 6f 6e 74 44 61 74 |way$Dir>.FontDat| 000021e0 61 22 2c 20 73 69 7a 65 25 2c 20 30 0d 0c 58 1f |a", size%, 0..X.| 000021f0 3f 73 69 7a 65 25 3d 38 3a f4 20 57 69 64 74 68 |?size%=8:. Width| 00002200 20 6f 66 20 61 20 73 70 61 63 65 0d 0c 62 04 0d | of a space..b..| 00002210 0c 6c 22 66 69 6c 65 25 3d 8e 28 22 3c 54 65 78 |.l"file%=.("<Tex| 00002220 74 41 77 61 79 24 44 69 72 3e 2e 54 65 78 74 22 |tAway$Dir>.Text"| 00002230 29 0d 0c 76 15 e3 20 6c 25 3d 30 20 b8 20 72 6c |)..v.. l%=0 . rl| 00002240 69 6e 65 73 2d 31 0d 0c 80 12 20 6c 69 6e 65 24 |ines-1.... line$| 00002250 3d be 23 66 69 6c 65 25 0d 0c 8a 13 20 65 25 3d |=.#file%.... e%=| 00002260 74 65 78 74 25 2b 6c 25 2a 33 32 0d 0c 94 10 20 |text%+l%*32.... | 00002270 3f 65 25 3d a9 20 6c 69 6e 65 24 0d 0c 9e 0a 20 |?e%=. line$.... | 00002280 65 25 2b 3d 31 0d 0c a8 0a 20 77 77 25 3d 30 0d |e%+=1.... ww%=0.| 00002290 0c b2 15 20 e3 20 74 25 3d 31 20 b8 20 a9 20 6c |... . t%=1 . . l| 000022a0 69 6e 65 24 0d 0c bc 1c 20 20 3f 65 25 3d 97 28 |ine$.... ?e%=.(| 000022b0 c1 6c 69 6e 65 24 2c 74 25 2c 31 29 29 2d 33 32 |.line$,t%,1))-32| 000022c0 0d 0c c6 18 20 20 77 77 25 2b 3d 73 69 7a 65 25 |.... ww%+=size%| 000022d0 3f 28 3f 65 25 29 2b 32 0d 0c d0 0b 20 20 65 25 |?(?e%)+2.... e%| 000022e0 2b 3d 31 0d 0c da 06 20 ed 0d 0c e4 0b 20 77 77 |+=1.... ..... ww| 000022f0 25 2d 3d 31 0d 0c ee 16 20 e7 20 a9 20 6c 69 6e |%-=1.... . . lin| 00002300 65 24 3d 30 20 77 77 25 3d 30 0d 0c f8 15 20 74 |e$=0 ww%=0.... t| 00002310 77 69 64 25 21 28 6c 25 2a 34 29 3d 77 77 25 0d |wid%!(l%*4)=ww%.| 00002320 0d 02 05 ed 0d 0d 0c 0b d9 23 66 69 6c 65 25 0d |.........#file%.| 00002330 0d 16 04 0d 0d 20 1d 21 74 65 78 74 65 6e 64 25 |..... .!textend%| 00002340 3d 33 32 2a 72 6c 69 6e 65 73 2b 31 32 2a 33 32 |=32*rlines+12*32| 00002350 0d 0d 2a 0c 73 25 3d b3 28 2d 31 29 0d 0d 34 14 |..*.s%=.(-1)..4.| 00002360 e3 20 73 25 3d 30 20 b8 20 73 74 61 72 73 2d 31 |. s%=0 . stars-1| 00002370 0d 0d 3e 10 20 78 25 3d b3 28 33 32 30 29 2d 31 |..>. x%=.(320)-1| 00002380 0d 0d 48 10 20 79 25 3d b3 28 32 35 36 29 2d 31 |..H. y%=.(256)-1| 00002390 0d 0d 52 1a 20 73 5f 61 25 21 28 73 25 2a 34 29 |..R. s_a%!(s%*4)| 000023a0 3d 78 25 2b 79 25 2a 33 32 30 0d 0d 5c 05 ed 0d |=x%+y%*320..\...| 000023b0 0d 66 05 e1 0d 0d 70 04 0d 0d 7a 17 dd a4 73 70 |.f....p...z...sp| 000023c0 61 63 65 28 73 70 61 63 65 25 2c 20 70 25 29 0d |ace(space%, p%).| 000023d0 0d 84 0e 50 25 2b 3d 73 70 61 63 65 25 0d 0d 8e |...P%+=space%...| 000023e0 07 3d 70 25 0d ff |.=p%..| 000023e6