Home » Archimedes archive » Micro User » MU 1992-05.adf » PD » Fractal/!Fractal/Asm/Sample
Fractal/!Fractal/Asm/Sample
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 » Micro User » MU 1992-05.adf » PD |
| Filename: | Fractal/!Fractal/Asm/Sample |
| Read OK: | ✔ |
| File size: | 0E79 bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
10REM > <Frac$Dir>.Asm.Sample
20REM Sample Assembler source for !Fractal driver
30REM After assembling change the !RUN file for !Fractal to
40REM RUN <Frac$Dir>.Fractal -a Sample
50LIBRARY "<Frac$Dir>.Asm.Fraclib":PROCfracvars
60LIBRARY "<Frac$Dir>.Asm.FPlib":PROCfpinit
70circle=0:varstart=0:varend=0:REM initialise to a dummy value
80DIM code% 4096
90FOR asm=4 TO 7 STEP 3
100P%=0:O%=code%
110[OPT asm
120; Following is the list of fractal functions in this module
130FNfrachdr ; Identify ourselves as a fractal module
140;
150; One or more function definition pointers follow
160DCD circle_func ; The CIRCLE function definition
170;
180DCD -1 ; End of functions
190;--------------------------------------------------------------
200; Now we define the CIRCLE function's characteristics
210;
220.circle_func FNfracfunc("Circle",circle,fZoom,0,5,varend-varstart)
230;
240; CIRCLE's Variables after here
250.varstart
260FNafg2var(AFG_dbl,0,8):.x0 FNfp("DFD 0")
270FNafg2var(AFG_dbl,0,8):.y0 FNfp("DFD 0")
280FNafg2var(AFG_dbl,0,8):.w FNfp("DFD 1280")
290FNafg2var(AFG_dbl,0,8):.h FNfp("DFD 1024")
300FNafg2var(AFG_str,0,12)
310EQUS "Test String"+CHR$0:ALIGN ; Sample string - note CHR$0 & ALIGN at end
320.varend ; End of variables
330;
340; Variable names after here - 1 for each variable above
350FNvarname(" x0")
360FNvarname(" y0")
370FNvarname(" width")
380FNvarname(" height")
390FNvarname(" String")
400;-------------------------------------
410; The entry point to CIRCLE
420.circle
430FNfenter ; Initialise
440; R0=Fractal Event, R1=Address of Data
450MOV R9,#0
460STR R9,[R1,#fevent_rc] ; clear return code
470CMP R0,#fplotinit
480BEQ plotinit
490CMP R0,#fplot
500BEQ plot
510CMP R0,#fdatainit
520BEQ datainit
530; Unsupported event - just return
540FNfexit
550;-------------------------------------
560; Initialise ready for a plot
570.plotinit
580SWI 256+18 ; GCOL
590SWI 256+0
600SWI 256+63 ; Use colour 63 (white)
610; Calculate OS units conversion factors
620FNfp("LDFD F0,w")
630FNfp("LDFD F1,iw")
640FNfp("DVFD F2,F1,F0") ; Magnification
650LDR R2,[R1,#plot_im_osx]
660FNfp("FLTD F3,R2")
670FNfp("DVFD F3,F3,F1") ; Internal units->OS units scalar
680FNfp("MUFD F3,F3,F2") ; mag.*scalar=total scalar
690FNfp("STFD F3,scalar")
700; Calculate and set graphics origin
710FNfp("LDFD F0,x0")
720FNfp("MUFD F0,F0,F3") ; x0 to OS units
730FNfp("MNFD F0,F0") ; Negate
740FNfp("FIXD R2,F0")
750FNfp("LDFD F0,y0")
760FNfp("MUFD F0,F0,F3") ; y0 to OS units
770FNfp("MNFD F0,F0") ; Negate
780FNfp("FIXD R3,F0")
790SWI 256+29 ; Graphics origin
800AND R0,R2,#&FF ; Low byte
810SWI "OS_WriteC"
820MOV R0,R2,LSR #8 ; Hi byte
830SWI "OS_WriteC"
840AND R0,R3,#&FF ; Low byte
850SWI "OS_WriteC"
860MOV R0,R3,LSR #8 ; Hi byte
870SWI "OS_WriteC"
880; Exit
890FNfexit
900
910.scalar FNfp("DFD 0")
920.ix FNfp("DFD 0") ; Initial values
930.iy FNfp("DFD 0")
940.iw FNfp("DFD 1280")
950.ih FNfp("DFD 1024")
960
970; Plot routine
980.plot
990MVN R0,#0 ;R0=-1
1000STR R0,[R1,#plot_rc] ; Set end of plot ready for exit
1010FNfp("LDFD F0,xm")
1020FNfp("LDFD F1,ym")
1030FNfp("LDFD F2,r")
1040FNfp("LDFD F3,scalar")
1050FNfp("MUFD F4,F0,F3")
1060FNfp("FIXD R1,F4") ; x
1070FNfp("MUFD F4,F1,F3")
1080FNfp("FIXD R2,F4") ; y
1090MOV R0,#4 ; Move
1100SWI "OS_Plot"
1110MOV R0,#149 ; Circle outline
1120MOV R1,R1,LSR #1
1130MOV R2,R2,LSR #1
1140SWI "OS_Plot"
1150FNfexit
1160
1170.xm FNfp("DFD 640") ; centre
1180.ym FNfp("DFD 512")
1190.r FNfp("DFD 320") ; radius
1200
1210; Init data
1220.datainit
1230FNfp("LDFD F0,ix")
1240FNfp("STFD F0,x0")
1250FNfp("LDFD F0,iy")
1260FNfp("STFD F0,y0")
1270FNfp("LDFD F0,iw")
1280FNfp("STFD F0,w ")
1290FNfp("LDFD F0,ih")
1300FNfp("STFD F0,h ")
1310FNfexit
1320;--------------------------
1330FNfinterface ; Necessary C Interface code
1340]:NEXT
1350SYS "OS_File",10,"<Frac$Dir>.Sample",&FFA,,code%,O%
1360END
� > <Frac$Dir>.Asm.Sample
1� Sample Assembler source for !Fractal driver
;� After assembling change the !RUN file for !Fractal to
(&� RUN <Frac$Dir>.Fractal -a Sample
2)ț "<Frac$Dir>.Asm.Fraclib":�fracvars
<%ț "<Frac$Dir>.Asm.FPlib":�fpinit
F>circle=0:varstart=0:varend=0:� initialise to a dummy value
P� code% 4096
Z� asm=4 � 7 � 3
dP%=0:O%=code%
n [OPT asm
x?; Following is the list of fractal functions in this module
�5�frachdr ; Identify ourselves as a fractal module
�;
�5; One or more function definition pointers follow
�0DCD circle_func ; The ȏ function definition
�;
� DCD -1 ; End of functions
�C;--------------------------------------------------------------
�5; Now we define the ȏ function's characteristics
�;
�E.circle_func �fracfunc("Circle",circle,fZoom,0,5,varend-varstart)
�;
� ; ȏ's Variables after here
�
.varstart
*�afg2var(AFG_dbl,0,8):.x0 �fp("DFD 0")
*�afg2var(AFG_dbl,0,8):.y0 �fp("DFD 0")
,�afg2var(AFG_dbl,0,8):.w �fp("DFD 1280")
",�afg2var(AFG_dbl,0,8):.h �fp("DFD 1024")
,�afg2var(AFG_str,0,12)
6HEQUS "Test String"+�0:ALIGN ; Sample string - note �0 & ALIGN at end
@ .varend ; End of variables
J;
T;; Variable names after here - 1 for each variable above
^�varname(" x0")
h�varname(" y0")
r�varname(" width")
|�varname(" height")
��varname(" String")
�*;-------------------------------------
�; The entry point to ȏ
� .circle
��fenter ; Initialise
�*; R0=Fractal Event, R1=Address of Data
�
MOV R9,#0
�.STR R9,[R1,#fevent_rc] ; clear return code
�CMP R0,#fplotinit
�BEQ plotinit
�CMP R0,#fplot
� BEQ plot
�CMP R0,#fdatainit
BEQ datainit
%; Unsupported event - just return
�fexit
&*;-------------------------------------
0!; Initialise ready for a plot
:
.plotinit
DSWI 256+18 ; �
N
SWI 256+0
X&SWI 256+63 ; Use colour 63 (white)
b+; Calculate OS units conversion factors
l�fp("LDFD F0,w")
v�fp("LDFD F1,iw")
�(�fp("DVFD F2,F1,F0") ; Magnification
� LDR R2,[R1,#plot_im_osx]
��fp("FLTD F3,R2")
�:�fp("DVFD F3,F3,F1") ; Internal units->OS units scalar
�3�fp("MUFD F3,F3,F2") ; mag.*scalar=total scalar
��fp("STFD F3,scalar")
�'; Calculate and set graphics origin
��fp("LDFD F0,x0")
�)�fp("MUFD F0,F0,F3") ; x0 to OS units
� �fp("MNFD F0,F0") ; Negate
��fp("FIXD R2,F0")
��fp("LDFD F0,y0")
�)�fp("MUFD F0,F0,F3") ; y0 to OS units
�fp("MNFD F0,F0") ; Negate
�fp("FIXD R3,F0")
SWI 256+29 ; Graphics origin
� R0,R2,#&FF ; Low byte
*SWI "OS_WriteC"
4 MOV R0,R2,LSR #8 ; Hi byte
>SWI "OS_WriteC"
H � R0,R3,#&FF ; Low byte
RSWI "OS_WriteC"
\ MOV R0,R3,LSR #8 ; Hi byte
fSWI "OS_WriteC"
p
; Exit
z
�fexit
�
�.scalar �fp("DFD 0")
�%.ix �fp("DFD 0") ; Initial values
�.iy �fp("DFD 0")
�.iw �fp("DFD 1280")
�.ih �fp("DFD 1024")
�
�; Plot routine
� .plot
�MVN R0,#0 ;R0=-1
�9STR R0,[R1,#plot_rc] ; Set end of plot ready for exit
��fp("LDFD F0,xm")
��fp("LDFD F1,ym")
�fp("LDFD F2,r")
�fp("LDFD F3,scalar")
�fp("MUFD F4,F0,F3")
$�fp("FIXD R1,F4") ; x
.�fp("MUFD F4,F1,F3")
8�fp("FIXD R2,F4") ; y
BMOV R0,#4 ; Move
LSWI "OS_Plot"
V MOV R0,#149 ; Circle outline
`MOV R1,R1,LSR #1
jMOV R2,R2,LSR #1
tSWI "OS_Plot"
~
�fexit
�
� .xm �fp("DFD 640") ; centre
�.ym �fp("DFD 512")
� .r �fp("DFD 320") ; radius
�
�; Init data
�
.datainit
��fp("LDFD F0,ix")
��fp("STFD F0,x0")
��fp("LDFD F0,iy")
��fp("STFD F0,y0")
��fp("LDFD F0,iw")
�fp("STFD F0,w ")
�fp("LDFD F0,ih")
�fp("STFD F0,h ")
�fexit
( ;--------------------------
2,�finterface ; Necessary C Interface code
<]:�
F6ș "OS_File",10,"<Frac$Dir>.Sample",&FFA,,code%,O%
P�
� 00000000 0d 00 0a 1d f4 20 3e 20 3c 46 72 61 63 24 44 69 |..... > <Frac$Di|
00000010 72 3e 2e 41 73 6d 2e 53 61 6d 70 6c 65 0d 00 14 |r>.Asm.Sample...|
00000020 31 f4 20 53 61 6d 70 6c 65 20 41 73 73 65 6d 62 |1. Sample Assemb|
00000030 6c 65 72 20 73 6f 75 72 63 65 20 66 6f 72 20 21 |ler source for !|
00000040 46 72 61 63 74 61 6c 20 64 72 69 76 65 72 0d 00 |Fractal driver..|
00000050 1e 3b f4 20 41 66 74 65 72 20 61 73 73 65 6d 62 |.;. After assemb|
00000060 6c 69 6e 67 20 63 68 61 6e 67 65 20 74 68 65 20 |ling change the |
00000070 21 52 55 4e 20 66 69 6c 65 20 66 6f 72 20 21 46 |!RUN file for !F|
00000080 72 61 63 74 61 6c 20 74 6f 0d 00 28 26 f4 20 52 |ractal to..(&. R|
00000090 55 4e 20 3c 46 72 61 63 24 44 69 72 3e 2e 46 72 |UN <Frac$Dir>.Fr|
000000a0 61 63 74 61 6c 20 2d 61 20 53 61 6d 70 6c 65 0d |actal -a Sample.|
000000b0 00 32 29 c8 9b 20 22 3c 46 72 61 63 24 44 69 72 |.2).. "<Frac$Dir|
000000c0 3e 2e 41 73 6d 2e 46 72 61 63 6c 69 62 22 3a f2 |>.Asm.Fraclib":.|
000000d0 66 72 61 63 76 61 72 73 0d 00 3c 25 c8 9b 20 22 |fracvars..<%.. "|
000000e0 3c 46 72 61 63 24 44 69 72 3e 2e 41 73 6d 2e 46 |<Frac$Dir>.Asm.F|
000000f0 50 6c 69 62 22 3a f2 66 70 69 6e 69 74 0d 00 46 |Plib":.fpinit..F|
00000100 3e 63 69 72 63 6c 65 3d 30 3a 76 61 72 73 74 61 |>circle=0:varsta|
00000110 72 74 3d 30 3a 76 61 72 65 6e 64 3d 30 3a f4 20 |rt=0:varend=0:. |
00000120 69 6e 69 74 69 61 6c 69 73 65 20 74 6f 20 61 20 |initialise to a |
00000130 64 75 6d 6d 79 20 76 61 6c 75 65 0d 00 50 10 de |dummy value..P..|
00000140 20 63 6f 64 65 25 20 34 30 39 36 0d 00 5a 13 e3 | code% 4096..Z..|
00000150 20 61 73 6d 3d 34 20 b8 20 37 20 88 20 33 0d 00 | asm=4 . 7 . 3..|
00000160 64 11 50 25 3d 30 3a 4f 25 3d 63 6f 64 65 25 0d |d.P%=0:O%=code%.|
00000170 00 6e 0c 5b 4f 50 54 20 61 73 6d 0d 00 78 3f 3b |.n.[OPT asm..x?;|
00000180 20 46 6f 6c 6c 6f 77 69 6e 67 20 69 73 20 74 68 | Following is th|
00000190 65 20 6c 69 73 74 20 6f 66 20 66 72 61 63 74 61 |e list of fracta|
000001a0 6c 20 66 75 6e 63 74 69 6f 6e 73 20 69 6e 20 74 |l functions in t|
000001b0 68 69 73 20 6d 6f 64 75 6c 65 0d 00 82 35 a4 66 |his module...5.f|
000001c0 72 61 63 68 64 72 20 3b 20 49 64 65 6e 74 69 66 |rachdr ; Identif|
000001d0 79 20 6f 75 72 73 65 6c 76 65 73 20 61 73 20 61 |y ourselves as a|
000001e0 20 66 72 61 63 74 61 6c 20 6d 6f 64 75 6c 65 0d | fractal module.|
000001f0 00 8c 05 3b 0d 00 96 35 3b 20 4f 6e 65 20 6f 72 |...;...5; One or|
00000200 20 6d 6f 72 65 20 66 75 6e 63 74 69 6f 6e 20 64 | more function d|
00000210 65 66 69 6e 69 74 69 6f 6e 20 70 6f 69 6e 74 65 |efinition pointe|
00000220 72 73 20 66 6f 6c 6c 6f 77 0d 00 a0 30 44 43 44 |rs follow...0DCD|
00000230 20 63 69 72 63 6c 65 5f 66 75 6e 63 20 3b 20 54 | circle_func ; T|
00000240 68 65 20 c8 8f 20 66 75 6e 63 74 69 6f 6e 20 64 |he .. function d|
00000250 65 66 69 6e 69 74 69 6f 6e 0d 00 aa 05 3b 0d 00 |efinition....;..|
00000260 b4 1d 44 43 44 20 2d 31 20 3b 20 45 6e 64 20 6f |..DCD -1 ; End o|
00000270 66 20 66 75 6e 63 74 69 6f 6e 73 0d 00 be 43 3b |f functions...C;|
00000280 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------|
*
000002b0 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 0d 00 |--------------..|
000002c0 c8 35 3b 20 4e 6f 77 20 77 65 20 64 65 66 69 6e |.5; Now we defin|
000002d0 65 20 74 68 65 20 c8 8f 20 66 75 6e 63 74 69 6f |e the .. functio|
000002e0 6e 27 73 20 63 68 61 72 61 63 74 65 72 69 73 74 |n's characterist|
000002f0 69 63 73 0d 00 d2 05 3b 0d 00 dc 45 2e 63 69 72 |ics....;...E.cir|
00000300 63 6c 65 5f 66 75 6e 63 20 a4 66 72 61 63 66 75 |cle_func .fracfu|
00000310 6e 63 28 22 43 69 72 63 6c 65 22 2c 63 69 72 63 |nc("Circle",circ|
00000320 6c 65 2c 66 5a 6f 6f 6d 2c 30 2c 35 2c 76 61 72 |le,fZoom,0,5,var|
00000330 65 6e 64 2d 76 61 72 73 74 61 72 74 29 0d 00 e6 |end-varstart)...|
00000340 05 3b 0d 00 f0 1f 3b 20 c8 8f 27 73 20 56 61 72 |.;....; ..'s Var|
00000350 69 61 62 6c 65 73 20 61 66 74 65 72 20 68 65 72 |iables after her|
00000360 65 0d 00 fa 0d 2e 76 61 72 73 74 61 72 74 0d 01 |e.....varstart..|
00000370 04 2a a4 61 66 67 32 76 61 72 28 41 46 47 5f 64 |.*.afg2var(AFG_d|
00000380 62 6c 2c 30 2c 38 29 3a 2e 78 30 20 a4 66 70 28 |bl,0,8):.x0 .fp(|
00000390 22 44 46 44 20 30 22 29 0d 01 0e 2a a4 61 66 67 |"DFD 0")...*.afg|
000003a0 32 76 61 72 28 41 46 47 5f 64 62 6c 2c 30 2c 38 |2var(AFG_dbl,0,8|
000003b0 29 3a 2e 79 30 20 a4 66 70 28 22 44 46 44 20 30 |):.y0 .fp("DFD 0|
000003c0 22 29 0d 01 18 2c a4 61 66 67 32 76 61 72 28 41 |")...,.afg2var(A|
000003d0 46 47 5f 64 62 6c 2c 30 2c 38 29 3a 2e 77 20 a4 |FG_dbl,0,8):.w .|
000003e0 66 70 28 22 44 46 44 20 31 32 38 30 22 29 0d 01 |fp("DFD 1280")..|
000003f0 22 2c a4 61 66 67 32 76 61 72 28 41 46 47 5f 64 |",.afg2var(AFG_d|
00000400 62 6c 2c 30 2c 38 29 3a 2e 68 20 a4 66 70 28 22 |bl,0,8):.h .fp("|
00000410 44 46 44 20 31 30 32 34 22 29 0d 01 2c 1a a4 61 |DFD 1024")..,..a|
00000420 66 67 32 76 61 72 28 41 46 47 5f 73 74 72 2c 30 |fg2var(AFG_str,0|
00000430 2c 31 32 29 0d 01 36 48 45 51 55 53 20 22 54 65 |,12)..6HEQUS "Te|
00000440 73 74 20 53 74 72 69 6e 67 22 2b bd 30 3a 41 4c |st String"+.0:AL|
00000450 49 47 4e 20 3b 20 53 61 6d 70 6c 65 20 73 74 72 |IGN ; Sample str|
00000460 69 6e 67 20 2d 20 6e 6f 74 65 20 bd 30 20 26 20 |ing - note .0 & |
00000470 41 4c 49 47 4e 20 61 74 20 65 6e 64 0d 01 40 1e |ALIGN at end..@.|
00000480 2e 76 61 72 65 6e 64 20 3b 20 45 6e 64 20 6f 66 |.varend ; End of|
00000490 20 76 61 72 69 61 62 6c 65 73 0d 01 4a 05 3b 0d | variables..J.;.|
000004a0 01 54 3b 3b 20 56 61 72 69 61 62 6c 65 20 6e 61 |.T;; Variable na|
000004b0 6d 65 73 20 61 66 74 65 72 20 68 65 72 65 20 2d |mes after here -|
000004c0 20 31 20 66 6f 72 20 65 61 63 68 20 76 61 72 69 | 1 for each vari|
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000004e0 61 72 6e 61 6d 65 28 22 20 20 20 20 20 20 20 20 |arname(" |
000004f0 20 78 30 22 29 0d 01 68 1b a4 76 61 72 6e 61 6d | x0")..h..varnam|
00000500 65 28 22 20 20 20 20 20 20 20 20 20 79 30 22 29 |e(" y0")|
00000510 0d 01 72 1b a4 76 61 72 6e 61 6d 65 28 22 20 20 |..r..varname(" |
00000520 20 20 20 20 77 69 64 74 68 22 29 0d 01 7c 1b a4 | width")..|..|
00000530 76 61 72 6e 61 6d 65 28 22 20 20 20 20 20 68 65 |varname(" he|
00000540 69 67 68 74 22 29 0d 01 86 1b a4 76 61 72 6e 61 |ight").....varna|
00000550 6d 65 28 22 20 20 20 20 20 53 74 72 69 6e 67 22 |me(" String"|
00000560 29 0d 01 90 2a 3b 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |)...*;----------|
00000570 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------|
00000580 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 0d 01 9a 1b 3b |-----------....;|
00000590 20 54 68 65 20 65 6e 74 72 79 20 70 6f 69 6e 74 | The entry point|
000005a0 20 74 6f 20 c8 8f 0d 01 a4 0b 2e 63 69 72 63 6c | to .......circl|
000005b0 65 0d 01 ae 18 a4 66 65 6e 74 65 72 20 3b 20 49 |e.....fenter ; I|
000005c0 6e 69 74 69 61 6c 69 73 65 0d 01 b8 2a 3b 20 52 |nitialise...*; R|
000005d0 30 3d 46 72 61 63 74 61 6c 20 45 76 65 6e 74 2c |0=Fractal Event,|
000005e0 20 52 31 3d 41 64 64 72 65 73 73 20 6f 66 20 44 | R1=Address of D|
000005f0 61 74 61 0d 01 c2 0d 4d 4f 56 20 52 39 2c 23 30 |ata....MOV R9,#0|
00000600 0d 01 cc 2e 53 54 52 20 52 39 2c 5b 52 31 2c 23 |....STR R9,[R1,#|
00000610 66 65 76 65 6e 74 5f 72 63 5d 20 3b 20 63 6c 65 |fevent_rc] ; cle|
00000620 61 72 20 72 65 74 75 72 6e 20 63 6f 64 65 0d 01 |ar return code..|
00000630 d6 15 43 4d 50 20 52 30 2c 23 66 70 6c 6f 74 69 |..CMP R0,#fploti|
00000640 6e 69 74 0d 01 e0 10 42 45 51 20 70 6c 6f 74 69 |nit....BEQ ploti|
00000650 6e 69 74 0d 01 ea 11 43 4d 50 20 52 30 2c 23 66 |nit....CMP R0,#f|
00000660 70 6c 6f 74 0d 01 f4 0c 42 45 51 20 70 6c 6f 74 |plot....BEQ plot|
00000670 0d 01 fe 15 43 4d 50 20 52 30 2c 23 66 64 61 74 |....CMP R0,#fdat|
00000680 61 69 6e 69 74 0d 02 08 10 42 45 51 20 64 61 74 |ainit....BEQ dat|
00000690 61 69 6e 69 74 0d 02 12 25 3b 20 55 6e 73 75 70 |ainit...%; Unsup|
000006a0 70 6f 72 74 65 64 20 65 76 65 6e 74 20 2d 20 6a |ported event - j|
000006b0 75 73 74 20 72 65 74 75 72 6e 0d 02 1c 0a a4 66 |ust return.....f|
000006c0 65 78 69 74 0d 02 26 2a 3b 2d 2d 2d 2d 2d 2d 2d |exit..&*;-------|
000006d0 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------|
000006e0 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 0d 02 |--------------..|
000006f0 30 21 3b 20 49 6e 69 74 69 61 6c 69 73 65 20 72 |0!; Initialise r|
00000700 65 61 64 79 20 66 6f 72 20 61 20 70 6c 6f 74 0d |eady for a plot.|
00000710 02 3a 0d 2e 70 6c 6f 74 69 6e 69 74 0d 02 44 12 |.:..plotinit..D.|
00000720 53 57 49 20 32 35 36 2b 31 38 20 3b 20 e6 0d 02 |SWI 256+18 ; ...|
00000730 4e 0d 53 57 49 20 32 35 36 2b 30 0d 02 58 26 53 |N.SWI 256+0..X&S|
00000740 57 49 20 32 35 36 2b 36 33 20 3b 20 55 73 65 20 |WI 256+63 ; Use |
00000750 63 6f 6c 6f 75 72 20 36 33 20 28 77 68 69 74 65 |colour 63 (white|
00000760 29 0d 02 62 2b 3b 20 43 61 6c 63 75 6c 61 74 65 |)..b+; Calculate|
00000770 20 4f 53 20 75 6e 69 74 73 20 63 6f 6e 76 65 72 | OS units conver|
00000780 73 69 6f 6e 20 66 61 63 74 6f 72 73 0d 02 6c 14 |sion factors..l.|
00000790 a4 66 70 28 22 4c 44 46 44 20 46 30 2c 77 22 29 |.fp("LDFD F0,w")|
000007a0 0d 02 76 15 a4 66 70 28 22 4c 44 46 44 20 46 31 |..v..fp("LDFD F1|
000007b0 2c 69 77 22 29 0d 02 80 28 a4 66 70 28 22 44 56 |,iw")...(.fp("DV|
000007c0 46 44 20 46 32 2c 46 31 2c 46 30 22 29 20 3b 20 |FD F2,F1,F0") ; |
000007d0 4d 61 67 6e 69 66 69 63 61 74 69 6f 6e 0d 02 8a |Magnification...|
000007e0 1c 4c 44 52 20 52 32 2c 5b 52 31 2c 23 70 6c 6f |.LDR R2,[R1,#plo|
000007f0 74 5f 69 6d 5f 6f 73 78 5d 0d 02 94 15 a4 66 70 |t_im_osx].....fp|
00000800 28 22 46 4c 54 44 20 46 33 2c 52 32 22 29 0d 02 |("FLTD F3,R2")..|
00000810 9e 3a a4 66 70 28 22 44 56 46 44 20 46 33 2c 46 |.:.fp("DVFD F3,F|
00000820 33 2c 46 31 22 29 20 3b 20 49 6e 74 65 72 6e 61 |3,F1") ; Interna|
00000830 6c 20 75 6e 69 74 73 2d 3e 4f 53 20 75 6e 69 74 |l units->OS unit|
00000840 73 20 73 63 61 6c 61 72 0d 02 a8 33 a4 66 70 28 |s scalar...3.fp(|
00000850 22 4d 55 46 44 20 46 33 2c 46 33 2c 46 32 22 29 |"MUFD F3,F3,F2")|
00000860 20 3b 20 6d 61 67 2e 2a 73 63 61 6c 61 72 3d 74 | ; mag.*scalar=t|
00000870 6f 74 61 6c 20 73 63 61 6c 61 72 0d 02 b2 19 a4 |otal scalar.....|
00000880 66 70 28 22 53 54 46 44 20 46 33 2c 73 63 61 6c |fp("STFD F3,scal|
00000890 61 72 22 29 0d 02 bc 27 3b 20 43 61 6c 63 75 6c |ar")...'; Calcul|
000008a0 61 74 65 20 61 6e 64 20 73 65 74 20 67 72 61 70 |ate and set grap|
000008b0 68 69 63 73 20 6f 72 69 67 69 6e 0d 02 c6 15 a4 |hics origin.....|
000008c0 66 70 28 22 4c 44 46 44 20 46 30 2c 78 30 22 29 |fp("LDFD F0,x0")|
000008d0 0d 02 d0 29 a4 66 70 28 22 4d 55 46 44 20 46 30 |...).fp("MUFD F0|
000008e0 2c 46 30 2c 46 33 22 29 20 3b 20 78 30 20 74 6f |,F0,F3") ; x0 to|
000008f0 20 4f 53 20 75 6e 69 74 73 0d 02 da 1e a4 66 70 | OS units.....fp|
00000900 28 22 4d 4e 46 44 20 46 30 2c 46 30 22 29 20 3b |("MNFD F0,F0") ;|
00000910 20 4e 65 67 61 74 65 0d 02 e4 15 a4 66 70 28 22 | Negate.....fp("|
00000920 46 49 58 44 20 52 32 2c 46 30 22 29 0d 02 ee 15 |FIXD R2,F0")....|
00000930 a4 66 70 28 22 4c 44 46 44 20 46 30 2c 79 30 22 |.fp("LDFD F0,y0"|
00000940 29 0d 02 f8 29 a4 66 70 28 22 4d 55 46 44 20 46 |)...).fp("MUFD F|
00000950 30 2c 46 30 2c 46 33 22 29 20 3b 20 79 30 20 74 |0,F0,F3") ; y0 t|
00000960 6f 20 4f 53 20 75 6e 69 74 73 0d 03 02 1e a4 66 |o OS units.....f|
00000970 70 28 22 4d 4e 46 44 20 46 30 2c 46 30 22 29 20 |p("MNFD F0,F0") |
00000980 3b 20 4e 65 67 61 74 65 0d 03 0c 15 a4 66 70 28 |; Negate.....fp(|
00000990 22 46 49 58 44 20 52 33 2c 46 30 22 29 0d 03 16 |"FIXD R3,F0")...|
000009a0 20 53 57 49 20 32 35 36 2b 32 39 20 3b 20 47 72 | SWI 256+29 ; Gr|
000009b0 61 70 68 69 63 73 20 6f 72 69 67 69 6e 0d 03 20 |aphics origin.. |
000009c0 1c 80 20 52 30 2c 52 32 2c 23 26 46 46 20 20 3b |.. R0,R2,#&FF ;|
000009d0 20 4c 6f 77 20 62 79 74 65 0d 03 2a 13 53 57 49 | Low byte..*.SWI|
000009e0 20 22 4f 53 5f 57 72 69 74 65 43 22 0d 03 34 1e | "OS_WriteC"..4.|
000009f0 4d 4f 56 20 52 30 2c 52 32 2c 4c 53 52 20 23 38 |MOV R0,R2,LSR #8|
00000a00 20 3b 20 48 69 20 62 79 74 65 0d 03 3e 13 53 57 | ; Hi byte..>.SW|
00000a10 49 20 22 4f 53 5f 57 72 69 74 65 43 22 0d 03 48 |I "OS_WriteC"..H|
00000a20 1c 80 20 52 30 2c 52 33 2c 23 26 46 46 20 20 3b |.. R0,R3,#&FF ;|
00000a30 20 4c 6f 77 20 62 79 74 65 0d 03 52 13 53 57 49 | Low byte..R.SWI|
00000a40 20 22 4f 53 5f 57 72 69 74 65 43 22 0d 03 5c 1e | "OS_WriteC"..\.|
00000a50 4d 4f 56 20 52 30 2c 52 33 2c 4c 53 52 20 23 38 |MOV R0,R3,LSR #8|
00000a60 20 3b 20 48 69 20 62 79 74 65 0d 03 66 13 53 57 | ; Hi byte..f.SW|
00000a70 49 20 22 4f 53 5f 57 72 69 74 65 43 22 0d 03 70 |I "OS_WriteC"..p|
00000a80 0a 3b 20 45 78 69 74 0d 03 7a 0a a4 66 65 78 69 |.; Exit..z..fexi|
00000a90 74 0d 03 84 04 0d 03 8e 18 2e 73 63 61 6c 61 72 |t.........scalar|
00000aa0 20 a4 66 70 28 22 44 46 44 20 30 22 29 0d 03 98 | .fp("DFD 0")...|
00000ab0 25 2e 69 78 20 a4 66 70 28 22 44 46 44 20 30 22 |%.ix .fp("DFD 0"|
00000ac0 29 20 3b 20 49 6e 69 74 69 61 6c 20 76 61 6c 75 |) ; Initial valu|
00000ad0 65 73 0d 03 a2 14 2e 69 79 20 a4 66 70 28 22 44 |es.....iy .fp("D|
00000ae0 46 44 20 30 22 29 0d 03 ac 17 2e 69 77 20 a4 66 |FD 0").....iw .f|
00000af0 70 28 22 44 46 44 20 31 32 38 30 22 29 0d 03 b6 |p("DFD 1280")...|
00000b00 17 2e 69 68 20 a4 66 70 28 22 44 46 44 20 31 30 |..ih .fp("DFD 10|
00000b10 32 34 22 29 0d 03 c0 04 0d 03 ca 12 3b 20 50 6c |24")........; Pl|
00000b20 6f 74 20 72 6f 75 74 69 6e 65 0d 03 d4 09 2e 70 |ot routine.....p|
00000b30 6c 6f 74 0d 03 de 14 4d 56 4e 20 52 30 2c 23 30 |lot....MVN R0,#0|
00000b40 20 3b 52 30 3d 2d 31 0d 03 e8 39 53 54 52 20 52 | ;R0=-1...9STR R|
00000b50 30 2c 5b 52 31 2c 23 70 6c 6f 74 5f 72 63 5d 20 |0,[R1,#plot_rc] |
00000b60 3b 20 53 65 74 20 65 6e 64 20 6f 66 20 70 6c 6f |; Set end of plo|
00000b70 74 20 72 65 61 64 79 20 66 6f 72 20 65 78 69 74 |t ready for exit|
00000b80 0d 03 f2 15 a4 66 70 28 22 4c 44 46 44 20 46 30 |.....fp("LDFD F0|
00000b90 2c 78 6d 22 29 0d 03 fc 15 a4 66 70 28 22 4c 44 |,xm").....fp("LD|
00000ba0 46 44 20 46 31 2c 79 6d 22 29 0d 04 06 14 a4 66 |FD F1,ym").....f|
00000bb0 70 28 22 4c 44 46 44 20 46 32 2c 72 22 29 0d 04 |p("LDFD F2,r")..|
00000bc0 10 19 a4 66 70 28 22 4c 44 46 44 20 46 33 2c 73 |...fp("LDFD F3,s|
00000bd0 63 61 6c 61 72 22 29 0d 04 1a 18 a4 66 70 28 22 |calar").....fp("|
00000be0 4d 55 46 44 20 46 34 2c 46 30 2c 46 33 22 29 0d |MUFD F4,F0,F3").|
00000bf0 04 24 19 a4 66 70 28 22 46 49 58 44 20 52 31 2c |.$..fp("FIXD R1,|
00000c00 46 34 22 29 20 3b 20 78 0d 04 2e 18 a4 66 70 28 |F4") ; x.....fp(|
00000c10 22 4d 55 46 44 20 46 34 2c 46 31 2c 46 33 22 29 |"MUFD F4,F1,F3")|
00000c20 0d 04 38 19 a4 66 70 28 22 46 49 58 44 20 52 32 |..8..fp("FIXD R2|
00000c30 2c 46 34 22 29 20 3b 20 79 0d 04 42 14 4d 4f 56 |,F4") ; y..B.MOV|
00000c40 20 52 30 2c 23 34 20 3b 20 4d 6f 76 65 0d 04 4c | R0,#4 ; Move..L|
00000c50 11 53 57 49 20 22 4f 53 5f 50 6c 6f 74 22 0d 04 |.SWI "OS_Plot"..|
00000c60 56 20 4d 4f 56 20 52 30 2c 23 31 34 39 20 3b 20 |V MOV R0,#149 ; |
00000c70 43 69 72 63 6c 65 20 6f 75 74 6c 69 6e 65 0d 04 |Circle outline..|
00000c80 60 14 4d 4f 56 20 52 31 2c 52 31 2c 4c 53 52 20 |`.MOV R1,R1,LSR |
00000c90 23 31 0d 04 6a 14 4d 4f 56 20 52 32 2c 52 32 2c |#1..j.MOV R2,R2,|
00000ca0 4c 53 52 20 23 31 0d 04 74 11 53 57 49 20 22 4f |LSR #1..t.SWI "O|
00000cb0 53 5f 50 6c 6f 74 22 0d 04 7e 0a a4 66 65 78 69 |S_Plot"..~..fexi|
00000cc0 74 0d 04 88 04 0d 04 92 1f 2e 78 6d 20 a4 66 70 |t.........xm .fp|
00000cd0 28 22 44 46 44 20 36 34 30 22 29 20 3b 20 63 65 |("DFD 640") ; ce|
00000ce0 6e 74 72 65 0d 04 9c 16 2e 79 6d 20 a4 66 70 28 |ntre.....ym .fp(|
00000cf0 22 44 46 44 20 35 31 32 22 29 0d 04 a6 1e 2e 72 |"DFD 512").....r|
00000d00 20 a4 66 70 28 22 44 46 44 20 33 32 30 22 29 20 | .fp("DFD 320") |
00000d10 3b 20 72 61 64 69 75 73 0d 04 b0 04 0d 04 ba 0f |; radius........|
00000d20 3b 20 49 6e 69 74 20 64 61 74 61 0d 04 c4 0d 2e |; Init data.....|
00000d30 64 61 74 61 69 6e 69 74 0d 04 ce 15 a4 66 70 28 |datainit.....fp(|
00000d40 22 4c 44 46 44 20 46 30 2c 69 78 22 29 0d 04 d8 |"LDFD F0,ix")...|
00000d50 15 a4 66 70 28 22 53 54 46 44 20 46 30 2c 78 30 |..fp("STFD F0,x0|
00000d60 22 29 0d 04 e2 15 a4 66 70 28 22 4c 44 46 44 20 |").....fp("LDFD |
00000d70 46 30 2c 69 79 22 29 0d 04 ec 15 a4 66 70 28 22 |F0,iy").....fp("|
00000d80 53 54 46 44 20 46 30 2c 79 30 22 29 0d 04 f6 15 |STFD F0,y0")....|
00000d90 a4 66 70 28 22 4c 44 46 44 20 46 30 2c 69 77 22 |.fp("LDFD F0,iw"|
00000da0 29 0d 05 00 15 a4 66 70 28 22 53 54 46 44 20 46 |).....fp("STFD F|
00000db0 30 2c 77 20 22 29 0d 05 0a 15 a4 66 70 28 22 4c |0,w ").....fp("L|
00000dc0 44 46 44 20 46 30 2c 69 68 22 29 0d 05 14 15 a4 |DFD F0,ih").....|
00000dd0 66 70 28 22 53 54 46 44 20 46 30 2c 68 20 22 29 |fp("STFD F0,h ")|
00000de0 0d 05 1e 0a a4 66 65 78 69 74 0d 05 28 1f 3b 2d |.....fexit..(.;-|
00000df0 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------|
00000e00 2d 2d 2d 2d 2d 2d 2d 2d 2d 0d 05 32 2c a4 66 69 |---------..2,.fi|
00000e10 6e 74 65 72 66 61 63 65 20 3b 20 4e 65 63 65 73 |nterface ; Neces|
00000e20 73 61 72 79 20 43 20 49 6e 74 65 72 66 61 63 65 |sary C Interface|
00000e30 20 63 6f 64 65 0d 05 3c 07 5d 3a ed 0d 05 46 36 | code..<.]:...F6|
00000e40 c8 99 20 22 4f 53 5f 46 69 6c 65 22 2c 31 30 2c |.. "OS_File",10,|
00000e50 22 3c 46 72 61 63 24 44 69 72 3e 2e 53 61 6d 70 |"<Frac$Dir>.Samp|
00000e60 6c 65 22 2c 26 46 46 41 2c 2c 63 6f 64 65 25 2c |le",&FFA,,code%,|
00000e70 4f 25 0d 05 50 05 e0 0d ff |O%..P....|
00000e79 
.