Home » Archimedes archive » Micro User » MU 1992-05.adf » PD » Fractal/!Fractal/Asm/FracLib
Fractal/!Fractal/Asm/FracLib
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/FracLib |
| Read OK: | ✔ |
| File size: | 2DA3 bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
10REM > <Frac$Dir>.Asm.FracLib
20REM Library for Assembler !Fractal Routines
30REM LEN Mike Curnow 1992
40Define all fractal variables
50DEFPROCfracvars
60PROCfracinit
70PROCfiminfo
80PROCfevents
90ENDPROC
100
110DEFPROCfracinit
120fracver=4:REM Current assembly version
130REM Fractal type bit settings
140fZoom=1:fInf=2:fnoclear=4:fxy=8:femenu=&100:fesprlod=&200
150fekeyinp=&800:fedatald=&1000:fedatawdw=&2000:fdataerr=&10000
160REM Fractal function defintion layout
170fdefn_fcall=12:fdefn_ft=16:fdefn_xyrtn=20:fdefn_nvars=24:fdefn_vsize=28
180fdefn_wsize=32:fdefn_d=36:fdefn_data=40
190AFG_flt=3:AFG_int=4:AFG_dbl=8:AFG_str=128:AFG_hex=255
200REM C interface symbolic values
210ficall=4:REM Address of C interface routine
220finewfunc=0:fixystart=finewfunc+1
230LAST=&80:REM menu flag
240ENDPROC
250
260REM Fractal events
270DEFPROCfevents
280finit=0:fselect=finit+1:fdeselect=fselect+1:fplotinit=fdeselect+1
290fplot=fplotinit+1:fdatachk=fplot+1:fdatainit=fdatachk+1
300fmenuinit=fdatainit+1:fmenuclick=fmenuinit+1
310fzoominit=fmenuclick+1:fkeyinp=fzoominit+1:fdataload=fkeyinp+1
320fxypos=fdataload+1:fwdwclick=fxypos+1:fhelp=fwdwclick+1
330fnewrotation=fhelp+1:fnewelevation=fnewrotation+1
340fdatawdw=fnewrotation+1:fsubmenu=fdatawdw+1:fspriteload=fsubmenu+1
350REM Fractal event control block basic layout
360fevent_rc=0:fevent_data=4
370PROCfplot:REM fplot & fplotinit control block layouts
380REM fmenuinit control block
390menuinit_rc=0:menuinit_fmenu=4
400REM fmenuclick control block
410menuclick_rc=0:menuclick_menu=4
420REM fkeyinp control block
430fkey_w=4:fkey_i=8:REM window handle & icon number
440fkey_x=12:fkey_y=16:fkey_height=20:fkey_index=24:fkey_key=28
450REM fxypos control block
460xypos_rc=0:xy_x=4:xy_y=12
470REM fwdwclick control block
480fwdwc_x=4:fwdwc_y=8:fwdwc_but=12:fwdwc_w=16:fwdwc_i=20:REM Mouse info
490REM fdataload/fspriteload control block
500fname=4:REM pointer to file name
510REM fdatachk control block
520errmsg=4:REM Pointer to error message text
530REM fhelp control block
540help_w=16:help_id=24
550ENDPROC
560
570Map Iminfo control block
580DEFPROCfiminfo
590im_w=0:im_h=4:im_mode=8:im_osx=16:im_osy=20:im_xf=24:im_yf=28:im_pall=36
600im_xfs=40:im_yfs=44:im_palp=48:im_prgb=52
610im_length=56:REM control block size
620ENDPROC
630Assemble local Iminfo control block
640DEFFNfiminfoasm
650[OPT asm
660.lim_w DCD 0 ; image width in pixels
670.lim_h DCD 0 ; image height in pixels
680.lim_mode DCD 0 ; image mode
690 DCD 0 ; internal use
700.lim_osx DCD 0 ; image width in os units
710.lim_osy DCD 0 ; image height in os units
720.lim_xf DCD 0 ; x pixel->os units factor
730.lim_yf DCD 0 ; y pixel->os units factor
740 DCD 0 ; internal use
750.lim_pall DCD 0 ; colour no.->logical palette address
760.lim_xfs DCD 0 ; x pixel->os units factor as shift value
770.lim_yfs DCD 0 ; y pixel->os units factor as shift value
780.lim_palp DCD 0 ; logical->physical palette address
790.lim_prgb DCD 0 ; rgb->physical palette address
800]:=0
810
820Map plot control block passed by fplotinit & fplot
830DEFPROCfplot
840plot_rc=0
850plot_x=4:plot_y=8:plot_addr=12:plot_base=16:plot_flags=20:plot_errmsg=24
860plot_iminfo=28
870plot_length=plot_iminfo:REM basic control block size
880plot_im_w=plot_iminfo+im_w
890plot_im_h=plot_iminfo+im_h
900plot_im_mode=plot_iminfo+im_mode
910plot_im_osx=plot_iminfo+im_osx
920plot_im_osy=plot_iminfo+im_osy
930plot_im_xf=plot_iminfo+im_xf
940plot_im_yf=plot_iminfo+im_yf
950plot_im_pall=plot_iminfo+im_pall
960plot_im_xfs=plot_iminfo+im_xfs
970plot_im_yfs=plot_iminfo+im_yfs
980plot_im_palp=plot_iminfo+im_palp
990plot_im_prgb=plot_iminfo+im_prgb
1000REM plot_flags values
1010plot_ded=1:REM plotting in dedicated mode
1020plot_guess=2:REM guessing mode
1030plot_fp=4:REM floating point maths mode
1040plot_zoom=8:REM this is a zoom re-draw request
1050plot_int27=&100:REM xy integer plotter using 27 binary place maths
1060plot_dbl=&200:REM xy plotter using double fp
1070plot_ffp=&400:REM xy plotter using fast float
1080ENDPROC
1090Assemble local Fplot control block
1100DEFFNfplotasm
1110[OPT asm
1120.lplot_rc DCD 0 ; Return code
1130.lplot_x DCD 0 ; current x
1140.lplot_y DCD 0 ; current y
1150.lplot_addr DCD 0 ; current plot address
1160.lplot_base DCD 0 ; Screen/sprite address
1170.lplot_flags DCD 0 ; Plot flags
1180.lplot_errmsg DCD 0 ; Pointer to error msg on return
1190.lplot_iminfo ; Iminfo data follows
1200]:=0
1210
1220REM Fractal Assembler module header
1230DEFFNfrachdr
1240[OPT asm
1250DCD fracver
1260]:=0
1270
1280REM Fractal Assembler function definition
1290DEFFNfracfunc(name$,rtn%,type%,plot%,nvars%,varsize%,wsize%)
1300IF LEN(name$)>11 name$=LEFT$(name$,11)
1310$O%=name$+CHR$0:P%+=12:O%+=12
1320[OPT asm
1330DCD rtn% ; fcall
1340DCD type% ; ft
1350DCD plot% ; xyrtn
1360DCD nvars% ; nvars
1370DCD varsize% ; vsize
1380DCD wsize% ; wsize
1390DCD 0 ; d
1400]:=0
1410
1420REM AFG2 Variable type definition
1430DEFFNafg2var(type%,array%,size%)
1440IF type%=4 OR type%=8 OR type%=128 THEN ELSE PRINT"Invalid AFG2 variable type="type%:STOP
1450[OPT asm
1460DCB type%:DCB array%:DCW size%
1470]:=0
1480REM Define variable name
1490DEFFNvarname(name$)
1500name$=LEFT$(name$+STRING$(11," "),11)
1510[OPT asm
1520EQUS name$+CHR$0
1530]:=0
1540;--------------------------------------------------------
1550REM C Interface routines
1560REM fenter=Entry point code
1570DEFFNfenter
1580[OPT asm
1590MOV R12,R13 ; Save stack address
1600STMFD R13!,{R4-R12,R14,PC}
1610SUB R11,R12,#4 ; new frame pointer
1620BL finitC
1630]:=0
1640
1650REM fexit=Exit code
1660DEFFNfexit
1670[OPT asm
1680B fexitc ; go to exit point
1690]:=0
1700
1710REM C function routine linkage
1720DEFFNfinterface
1730[OPT asm
1740; Exit back to fractal
1750.fexitc
1760; Return to C
1770; Following causes recursion problem
1780;LDR R11,ffp ; frame pointer
1790;LDMEA R11,{R4-R11,R13,PC}^
1800LDMFD R13,{R4-R11,R13,PC}^ ; temporary fix
1810;
1820; Initialise C linkage
1830.finitC
1840STR R10,flp ; low stack ptr
1850STR R11,ffp ; frame ptr
1860CMP R0,#finit ; If initial call
1870LDREQ R4,[R1,#ficall] ; Get address of C interface
1880STREQ R4,fcalladdr
1890MOVS PC,R14
1900;
1910; The C function interface routines follow
1920;
1930; fnewfunc. Switch to a new fractal function
1940; On entry R0 points to name of fractal function as in menu
1950.fnewfunc
1960STMFD R13!,{R0-R3,R10-R12,R14} ; Save caller's regs
1970STR R0,fcallp1 ; addr(function name)
1980MOV R0,#finewfunc
1990B fcallc
2000;
2010; fxystart. Open x/y pointer window
2020.fxystart
2030STMFD R13!,{R0-R3,R10-R12,R14} ; Save caller's regs
2040MOV R0,#fixystart
2050B fcallc
2060;
2070; fcallc. Here we call !Fractal to perform a function
2080; NOT for user use!
2090.fcallc
2100LDR R10,flp ; bottom of stack
2110ADR R1,fcallp ; address parameter list
2120ADR R14,freturn ; return address
2130LDR PC,fcalladdr ; Go to !Fractal C/ASM interface
2140.freturn
2150LDMFD R13!,{R0-R3,R10-R12,PC} ; Back to caller
2160;
2170.flp DCD 0 ; bottom of R13 stack
2180.ffp DCD 0 ; frame pointer
2190.fcalladdr DCD 0
2200.fcallp ; Parameters follow
2210.fcallp1 DCD 0
2220]
2230=0
2240---------------------------------------------------------
225027 binary point multiply routines based on code by Andrew Fedonczuk
226032 bit Multiply for numbers with 27 binary point places
2270No check is made for a result>16
2280DEFFNm32_27(ResHigh,num1,num2,wregs)
2290RES=27
2300LOCAL lhs,rhs,work,ResLow
2310IF ResHigh=num1 OR ResHigh=num2 OR num1=num2 PRINT'"FNm32_27: registers must be all different":STOP
2320lhs=wregs
2330rhs=wregs+1
2340work=wregs+2
2350ResLow=wregs+3
2360[ OPT asm
2370MOVS lhs,num1
2380RSBMI lhs,lhs,#0
2390MOVS rhs,num2
2400RSBMI rhs,rhs,#0
2410MOV work,lhs,LSR#&10
2420MOV ResHigh,rhs,LSR#&10
2430BIC lhs,lhs,work,LSL#&10
2440BIC rhs,rhs,ResHigh,LSL#&10
2450MUL ResLow,lhs,rhs
2460MUL rhs,work,rhs
2470MUL lhs,ResHigh,lhs
2480MUL ResHigh,work,ResHigh
2490ADDS lhs,rhs,lhs
2500ADDCS ResHigh,ResHigh,#&10000
2510ADDS ResLow,ResLow,lhs,LSL#&10
2520ADC ResHigh,ResHigh,lhs,LSR#&10
2530MOV ResHigh,ResHigh,LSL#(32-RES)
2540ADD ResHigh,ResHigh,ResLow,LSR#RES
2550EORS work,num1,num2 ; multiply sign
2560RSBMI ResHigh,ResHigh,#0 ; set sign of result
2570]
2580=0
2590
260016 bit Multiply for numbers with 27 binary point places
2610Calculated to 13 binary point accuracy
2620DEFFNm16_27(ResHigh,num1,num2,wregs)
2630lhs=wregs
2640rhs=wregs+1
2650[ OPT asm
2660MOV lhs,num1,ASR #&E
2670MOV rhs,num2,ASR #&E
2680MUL ResHigh,lhs,rhs
2690MOVS ResHigh,ResHigh,LSL#&1
2700]
2710=0
2720
2730Square a number with 27 binary point places
2740res=num*num. numhi & temp are work registers
2750Sets carry if result>16
2760This calculates to 26 bit accuracy
2770DEFFNsqr32_27(res,num,numhi,temp)
2780[OPT asm
2790MOVS res,num,ASL #2 ; to 29 bit format
2800RSBMI res,res,#0 ; make +ve if -ve
2810MOV numhi,res,LSR #16 ; top 16 bits
2820BIC res,res,numhi,LSL #16 ; clear top 16 bits
2830MUL temp,numhi,numhi ; square top 16
2840MUL res,numhi,res ; square top*bottom 16
2850ADD res,temp,res,LSR #15 ; res=temp+2*res
2860MOVS res,res,LSL #1 ; back to 27 bit format & set sign
2870]:=0
2880
289016 bit Square for numbers with 27 binary point places
2900ResHigh=num*num: temp=work
2910Calculated to 13 binary point accuracy
2920DEFFNsqr16_27(ResHigh,num,work)
2930[ OPT asm
2940MOV work,num,ASR #&E
2950MUL ResHigh,work,work
2960MOVS ResHigh,ResHigh,LSL#&1
2970]
2980=0
2990
300032 bit divide with variable number of binary places
3010q=quotient,a=dividend,b=divisor,temp=1st of 4 work registers
3020shift = number of binary places in source and result
3030Nb. no check for overflow or division by zero
3040DEFFNdivfp(q,a,b,temp,shift)
3050IF q=a OR q=b PRINT'"FNdivide: registers must be all different":STOP
3060LOCAL p,r,dividend,divisor
3070dividend=temp
3080divisor=temp+1
3090p=temp+2
3100r=temp+3
3110[OPT asm
3120MOVS dividend,a
3130RSBMI dividend,dividend,#0
3140MOVS divisor,b
3150RSBMI divisor,divisor,#0
3160MOV r,#0 ; remainder
3170MOV q,#0 ; quotient
3180MOV p,#1<<31 ; place marker
3190.divloop ; loop for all 32 integer bits
3200MOVS dividend,dividend,LSL#1
3210ADC r,r,r ; shift in hi-order bits
3220CMP r,divisor ; number>divisor?
3230ORRCS q,q,p ; yes - set bit in binary place
3240SUBCS r,r,divisor ; discard accounted value
3250MOVS p,p,LSR#1 ; next binary place
3260BNE divloop
3270MOV q,q,LSL#shift ; normalise result
3280MOV p,#1<<shift-1 ; number binary places to do
3290.divloop2 ; do binary places
3300ADD r,r,r ; shift up number
3310CMP r,divisor ; number>divisor
3320ORRCS q,q,p ; yes - set bit in binary place
3330SUBCS r,r,divisor ; discard accounted value
3340MOVS p,p,LSR#1 ; next binary place
3350BNE divloop2
3360EORS p,a,b ; get sign of result
3370RSBMI q,q,#0 ; and adjust quotient
3380]:=0
3390
3400Multiply two numbers with 16 binary places with 8 bit precision
3410DEFFNm16_16(Rn,Rx,Ry,work)
3420[OPT asm
3430MOV work,Rx,ASR #8
3440MOV (work+1),Ry,ASR #8
3450MUL Rn,work,(work+1)
3460]:=0
3470
3480Square a number with 16 binary places with 8 bit precision
3490DEFFNsqr16_16(Rn,Rx,work)
3500[OPT asm
3510MOV work,Rx,ASR #8
3520MUL Rn,work,work
3530]:=0
3540------------------------------------------------
3550Simple Menu creation functions.
3560fmenu_hdr : comes first. Supply title (1-12 chars) and width of following
3570 items (1-12)
3580DEFFNfmenu_hdr(title$,width%)
3590$O%=title$+CHR$0:O%!12=&0A070207:O%!16=width%*16+6:O%!20=44:O%!24=0
3600O%+=28:P%+=28
3610=0
3620
3630fmenu_item : defines a menu item. Supply text (1-12 chars),
3640submenu ptr - the address of a fmenu_hdr, a window handle or -1 if no ptr
3650and a flag byte - use the symbol LAST to denote end of the menu list.
3660DEFFNfmenu_item(text$,ptr%,flag%)
3670!O%=flag%:O%!4=ptr%:O%!8=&07000021:$(O%+12)=text$+CHR$0
3680O%+=24:P%+=24
3690=0
� > <Frac$Dir>.Asm.FracLib
-� Library for Assembler !Fractal Routines
� � Mike Curnow 1992
( Define all fractal variables
2��fracvars
<
�fracinit
F �fiminfo
P �fevents
Z�
d
n��fracinit
x(fracver=4:� Current assembly version
� � Fractal type bit settings
�=fZoom=1:fInf=2:fnoclear=4:fxy=8:femenu=&100:fesprlod=&200
�@fekeyinp=&800:fedatald=&1000:fedatawdw=&2000:fdataerr=&10000
�'� Fractal function defintion layout
�Kfdefn_fcall=12:fdefn_ft=16:fdefn_xyrtn=20:fdefn_nvars=24:fdefn_vsize=28
�+fdefn_wsize=32:fdefn_d=36:fdefn_data=40
�9AFG_flt=3:AFG_int=4:AFG_dbl=8:AFG_str=128:AFG_hex=255
�!� C interface symbolic values
�-ficall=4:� Address of C interface routine
�%finewfunc=0:fixystart=finewfunc+1
�LAST=&80:� menu flag
��
�
� Fractal events
��fevents
Efinit=0:fselect=finit+1:fdeselect=fselect+1:fplotinit=fdeselect+1
";fplot=fplotinit+1:fdatachk=fplot+1:fdatainit=fdatachk+1
,0fmenuinit=fdatainit+1:fmenuclick=fmenuinit+1
6Bfzoominit=fmenuclick+1:fkeyinp=fzoominit+1:fdataload=fkeyinp+1
@;fxypos=fdataload+1:fwdwclick=fxypos+1:fhelp=fwdwclick+1
J5fnewrotation=fhelp+1:fnewelevation=fnewrotation+1
TFfdatawdw=fnewrotation+1:fsubmenu=fdatawdw+1:fspriteload=fsubmenu+1
^.� Fractal event control block basic layout
h fevent_rc=0:fevent_data=4
r4�fplot:� fplot & fplotinit control block layouts
| � fmenuinit control block
�"menuinit_rc=0:menuinit_fmenu=4
� � fmenuclick control block
�#menuclick_rc=0:menuclick_menu=4
�� fkeyinp control block
�3fkey_w=4:fkey_i=8:� window handle & icon number
�@fkey_x=12:fkey_y=16:fkey_height=20:fkey_index=24:fkey_key=28
�� fxypos control block
� xypos_rc=0:xy_x=4:xy_y=12
� � fwdwclick control block
�Gfwdwc_x=4:fwdwc_y=8:fwdwc_but=12:fwdwc_w=16:fwdwc_i=20:� Mouse info
�)� fdataload/fspriteload control block
�"fname=4:� pointer to file name
� � fdatachk control block
,errmsg=4:� Pointer to error message text
� fhelp control block
help_w=16:help_id=24
&�
0
: Map Iminfo control block
D
��fiminfo
NLim_w=0:im_h=4:im_mode=8:im_osx=16:im_osy=20:im_xf=24:im_yf=28:im_pall=36
X-im_xfs=40:im_yfs=44:im_palp=48:im_prgb=52
b%im_length=56:� control block size
l�
v'Assemble local Iminfo control block
�ݤfiminfoasm
� [OPT asm
�+.lim_w DCD 0 ; image width in pixels
�,.lim_h DCD 0 ; image height in pixels
� .lim_mode DCD 0 ; image mode
�" DCD 0 ; internal use
�-.lim_osx DCD 0 ; image width in os units
�..lim_osy DCD 0 ; image height in os units
�..lim_xf DCD 0 ; x pixel->os units factor
�..lim_yf DCD 0 ; y pixel->os units factor
�" DCD 0 ; internal use
�9.lim_pall DCD 0 ; colour no.->logical palette address
�=.lim_xfs DCD 0 ; x pixel->os units factor as shift value
=.lim_yfs DCD 0 ; y pixel->os units factor as shift value
7.lim_palp DCD 0 ; logical->physical palette address
3.lim_prgb DCD 0 ; rgb->physical palette address
]:=0
*
46Map plot control block passed by fplotinit & fplot
> ��fplot
H
plot_rc=0
RLplot_x=4:plot_y=8:plot_addr=12:plot_base=16:plot_flags=20:plot_errmsg=24
\plot_iminfo=28
f6plot_length=plot_iminfo:� basic control block size
p plot_im_w=plot_iminfo+im_w
z plot_im_h=plot_iminfo+im_h
�$plot_im_mode=plot_iminfo+im_mode
�"plot_im_osx=plot_iminfo+im_osx
�"plot_im_osy=plot_iminfo+im_osy
� plot_im_xf=plot_iminfo+im_xf
� plot_im_yf=plot_iminfo+im_yf
�$plot_im_pall=plot_iminfo+im_pall
�"plot_im_xfs=plot_iminfo+im_xfs
�"plot_im_yfs=plot_iminfo+im_yfs
�$plot_im_palp=plot_iminfo+im_palp
�$plot_im_prgb=plot_iminfo+im_prgb
�� plot_flags values
�+plot_ded=1:� plotting in dedicated mode
� plot_guess=2:� guessing mode
)plot_fp=4:� floating point maths mode
0plot_zoom=8:� this is a zoom re-draw request
Dplot_int27=&100:� xy integer plotter using 27 binary place maths
$.plot_dbl=&200:� xy plotter using double fp
./plot_ffp=&400:� xy plotter using fast float
8�
B&Assemble local Fplot control block
Lݤfplotasm
V [OPT asm
`%.lplot_rc DCD 0 ; Return code
j#.lplot_x DCD 0 ; current x
t#.lplot_y DCD 0 ; current y
~..lplot_addr DCD 0 ; current plot address
�/.lplot_base DCD 0 ; Screen/sprite address
�$.lplot_flags DCD 0 ; Plot flags
�8.lplot_errmsg DCD 0 ; Pointer to error msg on return
�'.lplot_iminfo ; Iminfo data follows
�]:=0
�
�%� Fractal Assembler module header
�
ݤfrachdr
� [OPT asm
�DCD fracver
�]:=0
�
+� Fractal Assembler function definition
=ݤfracfunc(name$,rtn%,type%,plot%,nvars%,varsize%,wsize%)
"� �(name$)>11 name$=�name$,11)
$O%=name$+�0:P%+=12:O%+=12
( [OPT asm
2#DCD rtn% ; fcall
< DCD type% ; ft
F#DCD plot% ; xyrtn
P#DCD nvars% ; nvars
Z#DCD varsize% ; vsize
d#DCD wsize% ; wsize
n DCD 0 ; d
x]:=0
�
�#� AFG2 Variable type definition
�!ݤafg2var(type%,array%,size%)
�M� type%=4 � type%=8 � type%=128 � � �"Invalid AFG2 variable type="type%:�
� [OPT asm
�"DCB type%:DCB array%:DCW size%
�]:=0
�� Define variable name
�ݤvarname(name$)
� name$=�name$+�11," "),11)
� [OPT asm
�EQUS name$+�0
�]:=0
=;--------------------------------------------------------
� C Interface routines
� fenter=Entry point code
" ݤfenter
, [OPT asm
6,MOV R12,R13 ; Save stack address
@ STMFD R13!,{R4-R12,R14,PC}
J+SUB R11,R12,#4 ; new frame pointer
T
BL finitC
^]:=0
h
r� fexit=Exit code
| ݤfexit
� [OPT asm
�+B fexitc ; go to exit point
�]:=0
�
� � C function routine linkage
�ݤfinterface
� [OPT asm
�; Exit back to fractal
� .fexitc
�; Return to C
�(; Following causes recursion problem
�);LDR R11,ffp ; frame pointer
� ;LDMEA R11,{R4-R11,R13,PC}^
3LDMFD R13,{R4-R11,R13,PC}^ ; temporary fix
;
; Initialise C linkage
& .finitC
0 STR R10,flp ; low stack ptr
:STR R11,ffp ; frame ptr
D#CMP R0,#finit ; If initial call
N6LDREQ R4,[R1,#ficall] ; Get address of C interface
XSTREQ R4,fcalladdr
bMOVS PC,R14
l;
v.; The C function interface routines follow
�;
�0; fnewfunc. Switch to a new fractal function
�?; On entry R0 points to name of fractal function as in menu
�
.fnewfunc
�7STMFD R13!,{R0-R3,R10-R12,R14} ; Save caller's regs
�(STR R0,fcallp1 ; addr(function name)
�MOV R0,#finewfunc
� B fcallc
�;
�'; fxystart. Open x/y pointer window
�
.fxystart
�7STMFD R13!,{R0-R3,R10-R12,R14} ; Save caller's regs
�MOV R0,#fixystart
B fcallc
;
9; fcallc. Here we call !Fractal to perform a function
; � for user use!
* .fcallc
4&LDR R10,flp ; bottom of stack
>-ADR R1,fcallp ; address parameter list
H%ADR R14,freturn ; return address
R5LDR PC,fcalladdr ; Go to !Fractal C/ASM interface
\ .freturn
f2LDMFD R13!,{R0-R3,R10-R12,PC} ; Back to caller
p;
z$.flp DCD 0 ; bottom of R13 stack
� .ffp DCD 0 ; frame pointer
�.fcalladdr DCD 0
�'.fcallp ; Parameters follow
�.fcallp1 DCD 0
�]
�=0
�=---------------------------------------------------------
�G27 binary point multiply routines based on code by Andrew Fedonczuk
�;32 bit Multiply for numbers with 27 binary point places
�$No check is made for a result>16
�%ݤm32_27(ResHigh,num1,num2,wregs)
�
RES=27
�� lhs,rhs,work,ResLow
]� ResHigh=num1 � ResHigh=num2 � num1=num2 �'"FNm32_27: registers must be all different":�
lhs=wregs
rhs=wregs+1
$work=wregs+2
.ResLow=wregs+3
8
[ OPT asm
BMOVS lhs,num1
LRSBMI lhs,lhs,#0
VMOVS rhs,num2
`RSBMI rhs,rhs,#0
jMOV work,lhs,LSR#&10
tMOV ResHigh,rhs,LSR#&10
~ BIC lhs,lhs,work,LSL#&10
� BIC rhs,rhs,ResHigh,LSL#&10
�MUL ResLow,lhs,rhs
�MUL rhs,work,rhs
�MUL lhs,ResHigh,lhs
� MUL ResHigh,work,ResHigh
�ADDS lhs,rhs,lhs
�!ADDCS ResHigh,ResHigh,#&10000
�"ADDS ResLow,ResLow,lhs,LSL#&10
�#ADC ResHigh,ResHigh,lhs,LSR#&10
�$MOV ResHigh,ResHigh,LSL#(32-RES)
�&ADD ResHigh,ResHigh,ResLow,LSR#RES
�%�S work,num1,num2 ; multiply sign
8RSBMI ResHigh,ResHigh,#0 ; set sign of result
]
=0
(;16 bit Multiply for numbers with 27 binary point places
2*Calculated to 13 binary point accuracy
<%ݤm16_27(ResHigh,num1,num2,wregs)
F
lhs=wregs
Prhs=wregs+1
Z
[ OPT asm
dMOV lhs,num1,ASR #&E
nMOV rhs,num2,ASR #&E
xMUL ResHigh,lhs,rhs
� MOVS ResHigh,ResHigh,LSL#&1
�]
�=0
�
�/Square a number with 27 binary point places
�0res=num*num. numhi & temp are work registers
�Sets carry if result>16
�&This calculates to 26 bit accuracy
�"ݤsqr32_27(res,num,numhi,temp)
� [OPT asm
�.MOVS res,num,ASL #2 ; to 29 bit format
�-RSBMI res,res,#0 ; make +ve if -ve
�)MOV numhi,res,LSR #16 ; top 16 bits
7BIC res,res,numhi,LSL #16 ; clear top 16 bits
+MUL temp,numhi,numhi ; square top 16
2MUL res,numhi,res ; square top*bottom 16
"4ADD res,temp,res,LSR #15 ; res=temp+2*res
,>MOVS res,res,LSL #1 ; back to 27 bit format & set sign
6]:=0
@
J916 bit Square for numbers with 27 binary point places
T ResHigh=num*num: temp=work
^*Calculated to 13 binary point accuracy
h ݤsqr16_27(ResHigh,num,work)
r
[ OPT asm
|MOV work,num,ASR #&E
�MUL ResHigh,work,work
� MOVS ResHigh,ResHigh,LSL#&1
�]
�=0
�
�732 bit divide with variable number of binary places
�@q=quotient,a=dividend,b=divisor,temp=1st of 4 work registers
�8shift = number of binary places in source and result
�1Nb. no check for overflow or division by zero
� ݤdivfp(q,a,b,temp,shift)
�?� q=a � q=b �'"FNdivide: registers must be all different":�
�� p,r,dividend,divisor
�dividend=temp
divisor=temp+1
p=temp+2
r=temp+3
& [OPT asm
0MOVS dividend,a
: RSBMI dividend,dividend,#0
DMOVS divisor,b
N RSBMI divisor,divisor,#0
X'MOV r,#0 ; remainder
b&MOV q,#0 ; quotient
l*MOV p,#1<<31 ; place marker
v:.divloop ; loop for all 32 integer bits
� MOVS dividend,dividend,LSL#1
�4ADC r,r,r ; shift in hi-order bits
�-CMP r,divisor ; number>divisor?
�:�RCS q,q,p ; yes - set bit in binary place
�5SUBCS r,r,divisor ; discard accounted value
�/MOVS p,p,LSR#1 ; next binary place
�BNE divloop
�.MOV q,q,LSL#shift ; normalise result
�8MOV p,#1<<shift-1 ; number binary places to do
�..divloop2 ; do binary places
�-ADD r,r,r ; shift up number
�,CMP r,divisor ; number>divisor
�:�RCS q,q,p ; yes - set bit in binary place
5SUBCS r,r,divisor ; discard accounted value
/MOVS p,p,LSR#1 ; next binary place
BNE divloop2
.�S p,a,b ; get sign of result
*1RSBMI q,q,#0 ; and adjust quotient
4]:=0
>
HCMultiply two numbers with 16 binary places with 8 bit precision
Rݤm16_16(Rn,Rx,Ry,work)
\ [OPT asm
fMOV work,Rx,ASR #8
pMOV (work+1),Ry,ASR #8
zMUL Rn,work,(work+1)
�]:=0
�
�>Square a number with 16 binary places with 8 bit precision
�ݤsqr16_16(Rn,Rx,work)
� [OPT asm
�MOV work,Rx,ASR #8
�MUL Rn,work,work
�]:=0
�4------------------------------------------------
�#Simple Menu creation functions.
�Mfmenu_hdr : comes first. Supply title (1-12 chars) and width of following
� items (1-12)
� ݤfmenu_hdr(title$,width%)
D$O%=title$+�0:O%!12=&0A070207:O%!16=width%*16+6:O%!20=44:O%!24=0
O%+=28:P%+=28
=0
$
.?fmenu_item : defines a menu item. Supply text (1-12 chars),
8Msubmenu ptr - the address of a fmenu_hdr, a window handle or -1 if no ptr
BIand a flag byte - use the symbol LAST to denote end of the menu list.
L"ݤfmenu_item(text$,ptr%,flag%)
V8!O%=flag%:O%!4=ptr%:O%!8=&07000021:$(O%+12)=text$+�0
`O%+=24:P%+=24
j=0
� 00000000 0d 00 0a 1e f4 20 3e 20 3c 46 72 61 63 24 44 69 |..... > <Frac$Di|
00000010 72 3e 2e 41 73 6d 2e 46 72 61 63 4c 69 62 0d 00 |r>.Asm.FracLib..|
00000020 14 2d f4 20 4c 69 62 72 61 72 79 20 66 6f 72 20 |.-. Library for |
00000030 41 73 73 65 6d 62 6c 65 72 20 21 46 72 61 63 74 |Assembler !Fract|
00000040 61 6c 20 52 6f 75 74 69 6e 65 73 0d 00 1e 18 f4 |al Routines.....|
00000050 20 a9 20 4d 69 6b 65 20 43 75 72 6e 6f 77 20 31 | . Mike Curnow 1|
00000060 39 39 32 0d 00 28 20 44 65 66 69 6e 65 20 61 6c |992..( Define al|
00000070 6c 20 66 72 61 63 74 61 6c 20 76 61 72 69 61 62 |l fractal variab|
00000080 6c 65 73 0d 00 32 0e dd f2 66 72 61 63 76 61 72 |les..2...fracvar|
00000090 73 0d 00 3c 0d f2 66 72 61 63 69 6e 69 74 0d 00 |s..<..fracinit..|
000000a0 46 0c f2 66 69 6d 69 6e 66 6f 0d 00 50 0c f2 66 |F..fiminfo..P..f|
000000b0 65 76 65 6e 74 73 0d 00 5a 05 e1 0d 00 64 04 0d |events..Z....d..|
000000c0 00 6e 0e dd f2 66 72 61 63 69 6e 69 74 0d 00 78 |.n...fracinit..x|
000000d0 28 66 72 61 63 76 65 72 3d 34 3a f4 20 43 75 72 |(fracver=4:. Cur|
000000e0 72 65 6e 74 20 61 73 73 65 6d 62 6c 79 20 76 65 |rent assembly ve|
000000f0 72 73 69 6f 6e 0d 00 82 1f f4 20 46 72 61 63 74 |rsion..... Fract|
00000100 61 6c 20 74 79 70 65 20 62 69 74 20 73 65 74 74 |al type bit sett|
00000110 69 6e 67 73 0d 00 8c 3d 66 5a 6f 6f 6d 3d 31 3a |ings...=fZoom=1:|
00000120 66 49 6e 66 3d 32 3a 66 6e 6f 63 6c 65 61 72 3d |fInf=2:fnoclear=|
00000130 34 3a 66 78 79 3d 38 3a 66 65 6d 65 6e 75 3d 26 |4:fxy=8:femenu=&|
00000140 31 30 30 3a 66 65 73 70 72 6c 6f 64 3d 26 32 30 |100:fesprlod=&20|
00000150 30 0d 00 96 40 66 65 6b 65 79 69 6e 70 3d 26 38 |0...@fekeyinp=&8|
00000160 30 30 3a 66 65 64 61 74 61 6c 64 3d 26 31 30 30 |00:fedatald=&100|
00000170 30 3a 66 65 64 61 74 61 77 64 77 3d 26 32 30 30 |0:fedatawdw=&200|
00000180 30 3a 66 64 61 74 61 65 72 72 3d 26 31 30 30 30 |0:fdataerr=&1000|
00000190 30 0d 00 a0 27 f4 20 46 72 61 63 74 61 6c 20 66 |0...'. Fractal f|
000001a0 75 6e 63 74 69 6f 6e 20 64 65 66 69 6e 74 69 6f |unction defintio|
000001b0 6e 20 6c 61 79 6f 75 74 0d 00 aa 4b 66 64 65 66 |n layout...Kfdef|
000001c0 6e 5f 66 63 61 6c 6c 3d 31 32 3a 66 64 65 66 6e |n_fcall=12:fdefn|
000001d0 5f 66 74 3d 31 36 3a 66 64 65 66 6e 5f 78 79 72 |_ft=16:fdefn_xyr|
000001e0 74 6e 3d 32 30 3a 66 64 65 66 6e 5f 6e 76 61 72 |tn=20:fdefn_nvar|
000001f0 73 3d 32 34 3a 66 64 65 66 6e 5f 76 73 69 7a 65 |s=24:fdefn_vsize|
00000200 3d 32 38 0d 00 b4 2b 66 64 65 66 6e 5f 77 73 69 |=28...+fdefn_wsi|
00000210 7a 65 3d 33 32 3a 66 64 65 66 6e 5f 64 3d 33 36 |ze=32:fdefn_d=36|
00000220 3a 66 64 65 66 6e 5f 64 61 74 61 3d 34 30 0d 00 |:fdefn_data=40..|
00000230 be 39 41 46 47 5f 66 6c 74 3d 33 3a 41 46 47 5f |.9AFG_flt=3:AFG_|
00000240 69 6e 74 3d 34 3a 41 46 47 5f 64 62 6c 3d 38 3a |int=4:AFG_dbl=8:|
00000250 41 46 47 5f 73 74 72 3d 31 32 38 3a 41 46 47 5f |AFG_str=128:AFG_|
00000260 68 65 78 3d 32 35 35 0d 00 c8 21 f4 20 43 20 69 |hex=255...!. C i|
00000270 6e 74 65 72 66 61 63 65 20 73 79 6d 62 6f 6c 69 |nterface symboli|
00000280 63 20 76 61 6c 75 65 73 0d 00 d2 2d 66 69 63 61 |c values...-fica|
00000290 6c 6c 3d 34 3a f4 20 41 64 64 72 65 73 73 20 6f |ll=4:. Address o|
000002a0 66 20 43 20 69 6e 74 65 72 66 61 63 65 20 72 6f |f C interface ro|
000002b0 75 74 69 6e 65 0d 00 dc 25 66 69 6e 65 77 66 75 |utine...%finewfu|
000002c0 6e 63 3d 30 3a 66 69 78 79 73 74 61 72 74 3d 66 |nc=0:fixystart=f|
000002d0 69 6e 65 77 66 75 6e 63 2b 31 0d 00 e6 18 4c 41 |inewfunc+1....LA|
000002e0 53 54 3d 26 38 30 3a f4 20 6d 65 6e 75 20 66 6c |ST=&80:. menu fl|
000002f0 61 67 0d 00 f0 05 e1 0d 00 fa 04 0d 01 04 14 f4 |ag..............|
00000300 20 46 72 61 63 74 61 6c 20 65 76 65 6e 74 73 0d | Fractal events.|
00000310 01 0e 0d dd f2 66 65 76 65 6e 74 73 0d 01 18 45 |.....fevents...E|
00000320 66 69 6e 69 74 3d 30 3a 66 73 65 6c 65 63 74 3d |finit=0:fselect=|
00000330 66 69 6e 69 74 2b 31 3a 66 64 65 73 65 6c 65 63 |finit+1:fdeselec|
00000340 74 3d 66 73 65 6c 65 63 74 2b 31 3a 66 70 6c 6f |t=fselect+1:fplo|
00000350 74 69 6e 69 74 3d 66 64 65 73 65 6c 65 63 74 2b |tinit=fdeselect+|
00000360 31 0d 01 22 3b 66 70 6c 6f 74 3d 66 70 6c 6f 74 |1..";fplot=fplot|
00000370 69 6e 69 74 2b 31 3a 66 64 61 74 61 63 68 6b 3d |init+1:fdatachk=|
00000380 66 70 6c 6f 74 2b 31 3a 66 64 61 74 61 69 6e 69 |fplot+1:fdataini|
00000390 74 3d 66 64 61 74 61 63 68 6b 2b 31 0d 01 2c 30 |t=fdatachk+1..,0|
000003a0 66 6d 65 6e 75 69 6e 69 74 3d 66 64 61 74 61 69 |fmenuinit=fdatai|
000003b0 6e 69 74 2b 31 3a 66 6d 65 6e 75 63 6c 69 63 6b |nit+1:fmenuclick|
000003c0 3d 66 6d 65 6e 75 69 6e 69 74 2b 31 0d 01 36 42 |=fmenuinit+1..6B|
000003d0 66 7a 6f 6f 6d 69 6e 69 74 3d 66 6d 65 6e 75 63 |fzoominit=fmenuc|
000003e0 6c 69 63 6b 2b 31 3a 66 6b 65 79 69 6e 70 3d 66 |lick+1:fkeyinp=f|
000003f0 7a 6f 6f 6d 69 6e 69 74 2b 31 3a 66 64 61 74 61 |zoominit+1:fdata|
00000400 6c 6f 61 64 3d 66 6b 65 79 69 6e 70 2b 31 0d 01 |load=fkeyinp+1..|
00000410 40 3b 66 78 79 70 6f 73 3d 66 64 61 74 61 6c 6f |@;fxypos=fdatalo|
00000420 61 64 2b 31 3a 66 77 64 77 63 6c 69 63 6b 3d 66 |ad+1:fwdwclick=f|
00000430 78 79 70 6f 73 2b 31 3a 66 68 65 6c 70 3d 66 77 |xypos+1:fhelp=fw|
00000440 64 77 63 6c 69 63 6b 2b 31 0d 01 4a 35 66 6e 65 |dwclick+1..J5fne|
00000450 77 72 6f 74 61 74 69 6f 6e 3d 66 68 65 6c 70 2b |wrotation=fhelp+|
00000460 31 3a 66 6e 65 77 65 6c 65 76 61 74 69 6f 6e 3d |1:fnewelevation=|
00000470 66 6e 65 77 72 6f 74 61 74 69 6f 6e 2b 31 0d 01 |fnewrotation+1..|
00000480 54 46 66 64 61 74 61 77 64 77 3d 66 6e 65 77 72 |TFfdatawdw=fnewr|
00000490 6f 74 61 74 69 6f 6e 2b 31 3a 66 73 75 62 6d 65 |otation+1:fsubme|
000004a0 6e 75 3d 66 64 61 74 61 77 64 77 2b 31 3a 66 73 |nu=fdatawdw+1:fs|
000004b0 70 72 69 74 65 6c 6f 61 64 3d 66 73 75 62 6d 65 |priteload=fsubme|
000004c0 6e 75 2b 31 0d 01 5e 2e f4 20 46 72 61 63 74 61 |nu+1..^.. Fracta|
000004d0 6c 20 65 76 65 6e 74 20 63 6f 6e 74 72 6f 6c 20 |l event control |
000004e0 62 6c 6f 63 6b 20 62 61 73 69 63 20 6c 61 79 6f |block basic layo|
000004f0 75 74 0d 01 68 1d 66 65 76 65 6e 74 5f 72 63 3d |ut..h.fevent_rc=|
00000500 30 3a 66 65 76 65 6e 74 5f 64 61 74 61 3d 34 0d |0:fevent_data=4.|
00000510 01 72 34 f2 66 70 6c 6f 74 3a f4 20 66 70 6c 6f |.r4.fplot:. fplo|
00000520 74 20 26 20 66 70 6c 6f 74 69 6e 69 74 20 63 6f |t & fplotinit co|
00000530 6e 74 72 6f 6c 20 62 6c 6f 63 6b 20 6c 61 79 6f |ntrol block layo|
00000540 75 74 73 0d 01 7c 1d f4 20 66 6d 65 6e 75 69 6e |uts..|.. fmenuin|
00000550 69 74 20 63 6f 6e 74 72 6f 6c 20 62 6c 6f 63 6b |it control block|
00000560 0d 01 86 22 6d 65 6e 75 69 6e 69 74 5f 72 63 3d |..."menuinit_rc=|
00000570 30 3a 6d 65 6e 75 69 6e 69 74 5f 66 6d 65 6e 75 |0:menuinit_fmenu|
00000580 3d 34 0d 01 90 1e f4 20 66 6d 65 6e 75 63 6c 69 |=4..... fmenucli|
00000590 63 6b 20 63 6f 6e 74 72 6f 6c 20 62 6c 6f 63 6b |ck control block|
000005a0 0d 01 9a 23 6d 65 6e 75 63 6c 69 63 6b 5f 72 63 |...#menuclick_rc|
000005b0 3d 30 3a 6d 65 6e 75 63 6c 69 63 6b 5f 6d 65 6e |=0:menuclick_men|
000005c0 75 3d 34 0d 01 a4 1b f4 20 66 6b 65 79 69 6e 70 |u=4..... fkeyinp|
000005d0 20 63 6f 6e 74 72 6f 6c 20 62 6c 6f 63 6b 0d 01 | control block..|
000005e0 ae 33 66 6b 65 79 5f 77 3d 34 3a 66 6b 65 79 5f |.3fkey_w=4:fkey_|
000005f0 69 3d 38 3a f4 20 77 69 6e 64 6f 77 20 68 61 6e |i=8:. window han|
00000600 64 6c 65 20 26 20 69 63 6f 6e 20 6e 75 6d 62 65 |dle & icon numbe|
00000610 72 0d 01 b8 40 66 6b 65 79 5f 78 3d 31 32 3a 66 |r...@fkey_x=12:f|
00000620 6b 65 79 5f 79 3d 31 36 3a 66 6b 65 79 5f 68 65 |key_y=16:fkey_he|
00000630 69 67 68 74 3d 32 30 3a 66 6b 65 79 5f 69 6e 64 |ight=20:fkey_ind|
00000640 65 78 3d 32 34 3a 66 6b 65 79 5f 6b 65 79 3d 32 |ex=24:fkey_key=2|
00000650 38 0d 01 c2 1a f4 20 66 78 79 70 6f 73 20 63 6f |8..... fxypos co|
00000660 6e 74 72 6f 6c 20 62 6c 6f 63 6b 0d 01 cc 1d 78 |ntrol block....x|
00000670 79 70 6f 73 5f 72 63 3d 30 3a 78 79 5f 78 3d 34 |ypos_rc=0:xy_x=4|
00000680 3a 78 79 5f 79 3d 31 32 0d 01 d6 1d f4 20 66 77 |:xy_y=12..... fw|
00000690 64 77 63 6c 69 63 6b 20 63 6f 6e 74 72 6f 6c 20 |dwclick control |
000006a0 62 6c 6f 63 6b 0d 01 e0 47 66 77 64 77 63 5f 78 |block...Gfwdwc_x|
000006b0 3d 34 3a 66 77 64 77 63 5f 79 3d 38 3a 66 77 64 |=4:fwdwc_y=8:fwd|
000006c0 77 63 5f 62 75 74 3d 31 32 3a 66 77 64 77 63 5f |wc_but=12:fwdwc_|
000006d0 77 3d 31 36 3a 66 77 64 77 63 5f 69 3d 32 30 3a |w=16:fwdwc_i=20:|
000006e0 f4 20 4d 6f 75 73 65 20 69 6e 66 6f 0d 01 ea 29 |. Mouse info...)|
000006f0 f4 20 66 64 61 74 61 6c 6f 61 64 2f 66 73 70 72 |. fdataload/fspr|
00000700 69 74 65 6c 6f 61 64 20 63 6f 6e 74 72 6f 6c 20 |iteload control |
00000710 62 6c 6f 63 6b 0d 01 f4 22 66 6e 61 6d 65 3d 34 |block..."fname=4|
00000720 3a f4 20 70 6f 69 6e 74 65 72 20 74 6f 20 66 69 |:. pointer to fi|
00000730 6c 65 20 6e 61 6d 65 0d 01 fe 1c f4 20 66 64 61 |le name..... fda|
00000740 74 61 63 68 6b 20 63 6f 6e 74 72 6f 6c 20 62 6c |tachk control bl|
00000750 6f 63 6b 0d 02 08 2c 65 72 72 6d 73 67 3d 34 3a |ock...,errmsg=4:|
00000760 f4 20 50 6f 69 6e 74 65 72 20 74 6f 20 65 72 72 |. Pointer to err|
00000770 6f 72 20 6d 65 73 73 61 67 65 20 74 65 78 74 0d |or message text.|
00000780 02 12 19 f4 20 66 68 65 6c 70 20 63 6f 6e 74 72 |.... fhelp contr|
00000790 6f 6c 20 62 6c 6f 63 6b 0d 02 1c 18 68 65 6c 70 |ol block....help|
000007a0 5f 77 3d 31 36 3a 68 65 6c 70 5f 69 64 3d 32 34 |_w=16:help_id=24|
000007b0 0d 02 26 05 e1 0d 02 30 04 0d 02 3a 1c 4d 61 70 |..&....0...:.Map|
000007c0 20 49 6d 69 6e 66 6f 20 63 6f 6e 74 72 6f 6c 20 | Iminfo control |
000007d0 62 6c 6f 63 6b 0d 02 44 0d dd f2 66 69 6d 69 6e |block..D...fimin|
000007e0 66 6f 0d 02 4e 4c 69 6d 5f 77 3d 30 3a 69 6d 5f |fo..NLim_w=0:im_|
000007f0 68 3d 34 3a 69 6d 5f 6d 6f 64 65 3d 38 3a 69 6d |h=4:im_mode=8:im|
00000800 5f 6f 73 78 3d 31 36 3a 69 6d 5f 6f 73 79 3d 32 |_osx=16:im_osy=2|
00000810 30 3a 69 6d 5f 78 66 3d 32 34 3a 69 6d 5f 79 66 |0:im_xf=24:im_yf|
00000820 3d 32 38 3a 69 6d 5f 70 61 6c 6c 3d 33 36 0d 02 |=28:im_pall=36..|
00000830 58 2d 69 6d 5f 78 66 73 3d 34 30 3a 69 6d 5f 79 |X-im_xfs=40:im_y|
00000840 66 73 3d 34 34 3a 69 6d 5f 70 61 6c 70 3d 34 38 |fs=44:im_palp=48|
00000850 3a 69 6d 5f 70 72 67 62 3d 35 32 0d 02 62 25 69 |:im_prgb=52..b%i|
00000860 6d 5f 6c 65 6e 67 74 68 3d 35 36 3a f4 20 63 6f |m_length=56:. co|
00000870 6e 74 72 6f 6c 20 62 6c 6f 63 6b 20 73 69 7a 65 |ntrol block size|
00000880 0d 02 6c 05 e1 0d 02 76 27 41 73 73 65 6d 62 6c |..l....v'Assembl|
00000890 65 20 6c 6f 63 61 6c 20 49 6d 69 6e 66 6f 20 63 |e local Iminfo c|
000008a0 6f 6e 74 72 6f 6c 20 62 6c 6f 63 6b 0d 02 80 10 |ontrol block....|
000008b0 dd a4 66 69 6d 69 6e 66 6f 61 73 6d 0d 02 8a 0c |..fiminfoasm....|
000008c0 5b 4f 50 54 20 61 73 6d 0d 02 94 2b 2e 6c 69 6d |[OPT asm...+.lim|
000008d0 5f 77 20 20 20 20 44 43 44 20 30 20 3b 20 69 6d |_w DCD 0 ; im|
000008e0 61 67 65 20 77 69 64 74 68 20 69 6e 20 70 69 78 |age width in pix|
000008f0 65 6c 73 0d 02 9e 2c 2e 6c 69 6d 5f 68 20 20 20 |els...,.lim_h |
00000900 20 44 43 44 20 30 20 3b 20 69 6d 61 67 65 20 68 | DCD 0 ; image h|
00000910 65 69 67 68 74 20 69 6e 20 70 69 78 65 6c 73 0d |eight in pixels.|
00000920 02 a8 20 2e 6c 69 6d 5f 6d 6f 64 65 20 44 43 44 |.. .lim_mode DCD|
00000930 20 30 20 3b 20 69 6d 61 67 65 20 6d 6f 64 65 0d | 0 ; image mode.|
00000940 02 b2 22 20 20 20 20 20 20 20 20 20 20 44 43 44 |.." DCD|
00000950 20 30 20 3b 20 69 6e 74 65 72 6e 61 6c 20 75 73 | 0 ; internal us|
00000960 65 0d 02 bc 2d 2e 6c 69 6d 5f 6f 73 78 20 20 44 |e...-.lim_osx D|
00000970 43 44 20 30 20 3b 20 69 6d 61 67 65 20 77 69 64 |CD 0 ; image wid|
00000980 74 68 20 69 6e 20 6f 73 20 75 6e 69 74 73 0d 02 |th in os units..|
00000990 c6 2e 2e 6c 69 6d 5f 6f 73 79 20 20 44 43 44 20 |...lim_osy DCD |
000009a0 30 20 3b 20 69 6d 61 67 65 20 68 65 69 67 68 74 |0 ; image height|
000009b0 20 69 6e 20 6f 73 20 75 6e 69 74 73 0d 02 d0 2e | in os units....|
000009c0 2e 6c 69 6d 5f 78 66 20 20 20 44 43 44 20 30 20 |.lim_xf DCD 0 |
000009d0 3b 20 78 20 70 69 78 65 6c 2d 3e 6f 73 20 75 6e |; x pixel->os un|
000009e0 69 74 73 20 66 61 63 74 6f 72 0d 02 da 2e 2e 6c |its factor.....l|
000009f0 69 6d 5f 79 66 20 20 20 44 43 44 20 30 20 3b 20 |im_yf DCD 0 ; |
00000a00 79 20 70 69 78 65 6c 2d 3e 6f 73 20 75 6e 69 74 |y pixel->os unit|
00000a10 73 20 66 61 63 74 6f 72 0d 02 e4 22 20 20 20 20 |s factor..." |
00000a20 20 20 20 20 20 20 44 43 44 20 30 20 3b 20 69 6e | DCD 0 ; in|
00000a30 74 65 72 6e 61 6c 20 75 73 65 0d 02 ee 39 2e 6c |ternal use...9.l|
00000a40 69 6d 5f 70 61 6c 6c 20 44 43 44 20 30 20 3b 20 |im_pall DCD 0 ; |
00000a50 63 6f 6c 6f 75 72 20 6e 6f 2e 2d 3e 6c 6f 67 69 |colour no.->logi|
00000a60 63 61 6c 20 70 61 6c 65 74 74 65 20 61 64 64 72 |cal palette addr|
00000a70 65 73 73 0d 02 f8 3d 2e 6c 69 6d 5f 78 66 73 20 |ess...=.lim_xfs |
00000a80 20 44 43 44 20 30 20 3b 20 78 20 70 69 78 65 6c | DCD 0 ; x pixel|
00000a90 2d 3e 6f 73 20 75 6e 69 74 73 20 66 61 63 74 6f |->os units facto|
00000aa0 72 20 61 73 20 73 68 69 66 74 20 76 61 6c 75 65 |r as shift value|
00000ab0 0d 03 02 3d 2e 6c 69 6d 5f 79 66 73 20 20 44 43 |...=.lim_yfs DC|
00000ac0 44 20 30 20 3b 20 79 20 70 69 78 65 6c 2d 3e 6f |D 0 ; y pixel->o|
00000ad0 73 20 75 6e 69 74 73 20 66 61 63 74 6f 72 20 61 |s units factor a|
00000ae0 73 20 73 68 69 66 74 20 76 61 6c 75 65 0d 03 0c |s shift value...|
00000af0 37 2e 6c 69 6d 5f 70 61 6c 70 20 44 43 44 20 30 |7.lim_palp DCD 0|
00000b00 20 3b 20 6c 6f 67 69 63 61 6c 2d 3e 70 68 79 73 | ; logical->phys|
00000b10 69 63 61 6c 20 70 61 6c 65 74 74 65 20 61 64 64 |ical palette add|
00000b20 72 65 73 73 0d 03 16 33 2e 6c 69 6d 5f 70 72 67 |ress...3.lim_prg|
00000b30 62 20 44 43 44 20 30 20 3b 20 72 67 62 2d 3e 70 |b DCD 0 ; rgb->p|
00000b40 68 79 73 69 63 61 6c 20 70 61 6c 65 74 74 65 20 |hysical palette |
00000b50 61 64 64 72 65 73 73 0d 03 20 08 5d 3a 3d 30 0d |address.. .]:=0.|
00000b60 03 2a 04 0d 03 34 36 4d 61 70 20 70 6c 6f 74 20 |.*...46Map plot |
00000b70 63 6f 6e 74 72 6f 6c 20 62 6c 6f 63 6b 20 70 61 |control block pa|
00000b80 73 73 65 64 20 62 79 20 66 70 6c 6f 74 69 6e 69 |ssed by fplotini|
00000b90 74 20 26 20 66 70 6c 6f 74 0d 03 3e 0b dd f2 66 |t & fplot..>...f|
00000ba0 70 6c 6f 74 0d 03 48 0d 70 6c 6f 74 5f 72 63 3d |plot..H.plot_rc=|
00000bb0 30 0d 03 52 4c 70 6c 6f 74 5f 78 3d 34 3a 70 6c |0..RLplot_x=4:pl|
00000bc0 6f 74 5f 79 3d 38 3a 70 6c 6f 74 5f 61 64 64 72 |ot_y=8:plot_addr|
00000bd0 3d 31 32 3a 70 6c 6f 74 5f 62 61 73 65 3d 31 36 |=12:plot_base=16|
00000be0 3a 70 6c 6f 74 5f 66 6c 61 67 73 3d 32 30 3a 70 |:plot_flags=20:p|
00000bf0 6c 6f 74 5f 65 72 72 6d 73 67 3d 32 34 0d 03 5c |lot_errmsg=24..\|
00000c00 12 70 6c 6f 74 5f 69 6d 69 6e 66 6f 3d 32 38 0d |.plot_iminfo=28.|
00000c10 03 66 36 70 6c 6f 74 5f 6c 65 6e 67 74 68 3d 70 |.f6plot_length=p|
00000c20 6c 6f 74 5f 69 6d 69 6e 66 6f 3a f4 20 62 61 73 |lot_iminfo:. bas|
00000c30 69 63 20 63 6f 6e 74 72 6f 6c 20 62 6c 6f 63 6b |ic control block|
00000c40 20 73 69 7a 65 0d 03 70 1e 70 6c 6f 74 5f 69 6d | size..p.plot_im|
00000c50 5f 77 3d 70 6c 6f 74 5f 69 6d 69 6e 66 6f 2b 69 |_w=plot_iminfo+i|
00000c60 6d 5f 77 0d 03 7a 1e 70 6c 6f 74 5f 69 6d 5f 68 |m_w..z.plot_im_h|
00000c70 3d 70 6c 6f 74 5f 69 6d 69 6e 66 6f 2b 69 6d 5f |=plot_iminfo+im_|
00000c80 68 0d 03 84 24 70 6c 6f 74 5f 69 6d 5f 6d 6f 64 |h...$plot_im_mod|
00000c90 65 3d 70 6c 6f 74 5f 69 6d 69 6e 66 6f 2b 69 6d |e=plot_iminfo+im|
00000ca0 5f 6d 6f 64 65 0d 03 8e 22 70 6c 6f 74 5f 69 6d |_mode..."plot_im|
00000cb0 5f 6f 73 78 3d 70 6c 6f 74 5f 69 6d 69 6e 66 6f |_osx=plot_iminfo|
00000cc0 2b 69 6d 5f 6f 73 78 0d 03 98 22 70 6c 6f 74 5f |+im_osx..."plot_|
00000cd0 69 6d 5f 6f 73 79 3d 70 6c 6f 74 5f 69 6d 69 6e |im_osy=plot_imin|
00000ce0 66 6f 2b 69 6d 5f 6f 73 79 0d 03 a2 20 70 6c 6f |fo+im_osy... plo|
00000cf0 74 5f 69 6d 5f 78 66 3d 70 6c 6f 74 5f 69 6d 69 |t_im_xf=plot_imi|
00000d00 6e 66 6f 2b 69 6d 5f 78 66 0d 03 ac 20 70 6c 6f |nfo+im_xf... plo|
00000d10 74 5f 69 6d 5f 79 66 3d 70 6c 6f 74 5f 69 6d 69 |t_im_yf=plot_imi|
00000d20 6e 66 6f 2b 69 6d 5f 79 66 0d 03 b6 24 70 6c 6f |nfo+im_yf...$plo|
00000d30 74 5f 69 6d 5f 70 61 6c 6c 3d 70 6c 6f 74 5f 69 |t_im_pall=plot_i|
00000d40 6d 69 6e 66 6f 2b 69 6d 5f 70 61 6c 6c 0d 03 c0 |minfo+im_pall...|
00000d50 22 70 6c 6f 74 5f 69 6d 5f 78 66 73 3d 70 6c 6f |"plot_im_xfs=plo|
00000d60 74 5f 69 6d 69 6e 66 6f 2b 69 6d 5f 78 66 73 0d |t_iminfo+im_xfs.|
00000d70 03 ca 22 70 6c 6f 74 5f 69 6d 5f 79 66 73 3d 70 |.."plot_im_yfs=p|
00000d80 6c 6f 74 5f 69 6d 69 6e 66 6f 2b 69 6d 5f 79 66 |lot_iminfo+im_yf|
00000d90 73 0d 03 d4 24 70 6c 6f 74 5f 69 6d 5f 70 61 6c |s...$plot_im_pal|
00000da0 70 3d 70 6c 6f 74 5f 69 6d 69 6e 66 6f 2b 69 6d |p=plot_iminfo+im|
00000db0 5f 70 61 6c 70 0d 03 de 24 70 6c 6f 74 5f 69 6d |_palp...$plot_im|
00000dc0 5f 70 72 67 62 3d 70 6c 6f 74 5f 69 6d 69 6e 66 |_prgb=plot_iminf|
00000dd0 6f 2b 69 6d 5f 70 72 67 62 0d 03 e8 17 f4 20 70 |o+im_prgb..... p|
00000de0 6c 6f 74 5f 66 6c 61 67 73 20 76 61 6c 75 65 73 |lot_flags values|
00000df0 0d 03 f2 2b 70 6c 6f 74 5f 64 65 64 3d 31 3a f4 |...+plot_ded=1:.|
00000e00 20 70 6c 6f 74 74 69 6e 67 20 69 6e 20 64 65 64 | plotting in ded|
00000e10 69 63 61 74 65 64 20 6d 6f 64 65 0d 03 fc 20 70 |icated mode... p|
00000e20 6c 6f 74 5f 67 75 65 73 73 3d 32 3a f4 20 67 75 |lot_guess=2:. gu|
00000e30 65 73 73 69 6e 67 20 6d 6f 64 65 0d 04 06 29 70 |essing mode...)p|
00000e40 6c 6f 74 5f 66 70 3d 34 3a f4 20 66 6c 6f 61 74 |lot_fp=4:. float|
00000e50 69 6e 67 20 70 6f 69 6e 74 20 6d 61 74 68 73 20 |ing point maths |
00000e60 6d 6f 64 65 0d 04 10 30 70 6c 6f 74 5f 7a 6f 6f |mode...0plot_zoo|
00000e70 6d 3d 38 3a f4 20 74 68 69 73 20 69 73 20 61 20 |m=8:. this is a |
00000e80 7a 6f 6f 6d 20 72 65 2d 64 72 61 77 20 72 65 71 |zoom re-draw req|
00000e90 75 65 73 74 0d 04 1a 44 70 6c 6f 74 5f 69 6e 74 |uest...Dplot_int|
00000ea0 32 37 3d 26 31 30 30 3a f4 20 78 79 20 69 6e 74 |27=&100:. xy int|
00000eb0 65 67 65 72 20 70 6c 6f 74 74 65 72 20 75 73 69 |eger plotter usi|
00000ec0 6e 67 20 32 37 20 62 69 6e 61 72 79 20 70 6c 61 |ng 27 binary pla|
00000ed0 63 65 20 6d 61 74 68 73 0d 04 24 2e 70 6c 6f 74 |ce maths..$.plot|
00000ee0 5f 64 62 6c 3d 26 32 30 30 3a f4 20 78 79 20 70 |_dbl=&200:. xy p|
00000ef0 6c 6f 74 74 65 72 20 75 73 69 6e 67 20 64 6f 75 |lotter using dou|
00000f00 62 6c 65 20 66 70 0d 04 2e 2f 70 6c 6f 74 5f 66 |ble fp.../plot_f|
00000f10 66 70 3d 26 34 30 30 3a f4 20 78 79 20 70 6c 6f |fp=&400:. xy plo|
00000f20 74 74 65 72 20 75 73 69 6e 67 20 66 61 73 74 20 |tter using fast |
00000f30 66 6c 6f 61 74 0d 04 38 05 e1 0d 04 42 26 41 73 |float..8....B&As|
00000f40 73 65 6d 62 6c 65 20 6c 6f 63 61 6c 20 46 70 6c |semble local Fpl|
00000f50 6f 74 20 63 6f 6e 74 72 6f 6c 20 62 6c 6f 63 6b |ot control block|
00000f60 0d 04 4c 0e dd a4 66 70 6c 6f 74 61 73 6d 0d 04 |..L...fplotasm..|
00000f70 56 0c 5b 4f 50 54 20 61 73 6d 0d 04 60 25 2e 6c |V.[OPT asm..`%.l|
00000f80 70 6c 6f 74 5f 72 63 20 20 20 20 20 44 43 44 20 |plot_rc DCD |
00000f90 30 20 3b 20 52 65 74 75 72 6e 20 63 6f 64 65 0d |0 ; Return code.|
00000fa0 04 6a 23 2e 6c 70 6c 6f 74 5f 78 20 20 20 20 20 |.j#.lplot_x |
00000fb0 20 44 43 44 20 30 20 3b 20 63 75 72 72 65 6e 74 | DCD 0 ; current|
00000fc0 20 78 0d 04 74 23 2e 6c 70 6c 6f 74 5f 79 20 20 | x..t#.lplot_y |
00000fd0 20 20 20 20 44 43 44 20 30 20 3b 20 63 75 72 72 | DCD 0 ; curr|
00000fe0 65 6e 74 20 79 0d 04 7e 2e 2e 6c 70 6c 6f 74 5f |ent y..~..lplot_|
00000ff0 61 64 64 72 20 20 20 44 43 44 20 30 20 3b 20 63 |addr DCD 0 ; c|
00001000 75 72 72 65 6e 74 20 70 6c 6f 74 20 61 64 64 72 |urrent plot addr|
00001010 65 73 73 0d 04 88 2f 2e 6c 70 6c 6f 74 5f 62 61 |ess.../.lplot_ba|
00001020 73 65 20 20 20 44 43 44 20 30 20 3b 20 53 63 72 |se DCD 0 ; Scr|
00001030 65 65 6e 2f 73 70 72 69 74 65 20 61 64 64 72 65 |een/sprite addre|
00001040 73 73 0d 04 92 24 2e 6c 70 6c 6f 74 5f 66 6c 61 |ss...$.lplot_fla|
00001050 67 73 20 20 44 43 44 20 30 20 3b 20 50 6c 6f 74 |gs DCD 0 ; Plot|
00001060 20 66 6c 61 67 73 0d 04 9c 38 2e 6c 70 6c 6f 74 | flags...8.lplot|
00001070 5f 65 72 72 6d 73 67 20 44 43 44 20 30 20 3b 20 |_errmsg DCD 0 ; |
00001080 50 6f 69 6e 74 65 72 20 74 6f 20 65 72 72 6f 72 |Pointer to error|
00001090 20 6d 73 67 20 6f 6e 20 72 65 74 75 72 6e 0d 04 | msg on return..|
000010a0 a6 27 2e 6c 70 6c 6f 74 5f 69 6d 69 6e 66 6f 20 |.'.lplot_iminfo |
000010b0 3b 20 49 6d 69 6e 66 6f 20 64 61 74 61 20 66 6f |; Iminfo data fo|
000010c0 6c 6c 6f 77 73 0d 04 b0 08 5d 3a 3d 30 0d 04 ba |llows....]:=0...|
000010d0 04 0d 04 c4 25 f4 20 46 72 61 63 74 61 6c 20 41 |....%. Fractal A|
000010e0 73 73 65 6d 62 6c 65 72 20 6d 6f 64 75 6c 65 20 |ssembler module |
000010f0 68 65 61 64 65 72 0d 04 ce 0d dd a4 66 72 61 63 |header......frac|
00001100 68 64 72 0d 04 d8 0c 5b 4f 50 54 20 61 73 6d 0d |hdr....[OPT asm.|
00001110 04 e2 0f 44 43 44 20 66 72 61 63 76 65 72 0d 04 |...DCD fracver..|
00001120 ec 08 5d 3a 3d 30 0d 04 f6 04 0d 05 00 2b f4 20 |..]:=0.......+. |
00001130 46 72 61 63 74 61 6c 20 41 73 73 65 6d 62 6c 65 |Fractal Assemble|
00001140 72 20 66 75 6e 63 74 69 6f 6e 20 64 65 66 69 6e |r function defin|
00001150 69 74 69 6f 6e 0d 05 0a 3d dd a4 66 72 61 63 66 |ition...=..fracf|
00001160 75 6e 63 28 6e 61 6d 65 24 2c 72 74 6e 25 2c 74 |unc(name$,rtn%,t|
00001170 79 70 65 25 2c 70 6c 6f 74 25 2c 6e 76 61 72 73 |ype%,plot%,nvars|
00001180 25 2c 76 61 72 73 69 7a 65 25 2c 77 73 69 7a 65 |%,varsize%,wsize|
00001190 25 29 0d 05 14 22 e7 20 a9 28 6e 61 6d 65 24 29 |%)...". .(name$)|
000011a0 3e 31 31 20 6e 61 6d 65 24 3d c0 6e 61 6d 65 24 |>11 name$=.name$|
000011b0 2c 31 31 29 0d 05 1e 1e 24 4f 25 3d 6e 61 6d 65 |,11)....$O%=name|
000011c0 24 2b bd 30 3a 50 25 2b 3d 31 32 3a 4f 25 2b 3d |$+.0:P%+=12:O%+=|
000011d0 31 32 0d 05 28 0c 5b 4f 50 54 20 61 73 6d 0d 05 |12..(.[OPT asm..|
000011e0 32 23 44 43 44 20 72 74 6e 25 20 20 20 20 20 20 |2#DCD rtn% |
000011f0 20 20 20 20 20 20 20 20 20 20 3b 20 66 63 61 6c | ; fcal|
00001200 6c 0d 05 3c 20 44 43 44 20 74 79 70 65 25 20 20 |l..< DCD type% |
00001210 20 20 20 20 20 20 20 20 20 20 20 20 20 3b 20 66 | ; f|
00001220 74 0d 05 46 23 44 43 44 20 70 6c 6f 74 25 20 20 |t..F#DCD plot% |
00001230 20 20 20 20 20 20 20 20 20 20 20 20 20 3b 20 78 | ; x|
00001240 79 72 74 6e 0d 05 50 23 44 43 44 20 6e 76 61 72 |yrtn..P#DCD nvar|
00001250 73 25 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |s% |
00001260 3b 20 6e 76 61 72 73 0d 05 5a 23 44 43 44 20 76 |; nvars..Z#DCD v|
00001270 61 72 73 69 7a 65 25 20 20 20 20 20 20 20 20 20 |arsize% |
00001280 20 20 20 3b 20 76 73 69 7a 65 0d 05 64 23 44 43 | ; vsize..d#DC|
00001290 44 20 77 73 69 7a 65 25 20 20 20 20 20 20 20 20 |D wsize% |
000012a0 20 20 20 20 20 20 3b 20 77 73 69 7a 65 0d 05 6e | ; wsize..n|
000012b0 1f 44 43 44 20 30 20 20 20 20 20 20 20 20 20 20 |.DCD 0 |
000012c0 20 20 20 20 20 20 20 20 20 3b 20 64 0d 05 78 08 | ; d..x.|
000012d0 5d 3a 3d 30 0d 05 82 04 0d 05 8c 23 f4 20 41 46 |]:=0.......#. AF|
000012e0 47 32 20 56 61 72 69 61 62 6c 65 20 74 79 70 65 |G2 Variable type|
000012f0 20 64 65 66 69 6e 69 74 69 6f 6e 0d 05 96 21 dd | definition...!.|
00001300 a4 61 66 67 32 76 61 72 28 74 79 70 65 25 2c 61 |.afg2var(type%,a|
00001310 72 72 61 79 25 2c 73 69 7a 65 25 29 0d 05 a0 4d |rray%,size%)...M|
00001320 e7 20 74 79 70 65 25 3d 34 20 84 20 74 79 70 65 |. type%=4 . type|
00001330 25 3d 38 20 84 20 74 79 70 65 25 3d 31 32 38 20 |%=8 . type%=128 |
00001340 8c 20 8b 20 f1 22 49 6e 76 61 6c 69 64 20 41 46 |. . ."Invalid AF|
00001350 47 32 20 76 61 72 69 61 62 6c 65 20 74 79 70 65 |G2 variable type|
00001360 3d 22 74 79 70 65 25 3a fa 0d 05 aa 0c 5b 4f 50 |="type%:.....[OP|
00001370 54 20 61 73 6d 0d 05 b4 22 44 43 42 20 74 79 70 |T asm..."DCB typ|
00001380 65 25 3a 44 43 42 20 61 72 72 61 79 25 3a 44 43 |e%:DCB array%:DC|
00001390 57 20 73 69 7a 65 25 0d 05 be 08 5d 3a 3d 30 0d |W size%....]:=0.|
000013a0 05 c8 1a f4 20 44 65 66 69 6e 65 20 76 61 72 69 |.... Define vari|
000013b0 61 62 6c 65 20 6e 61 6d 65 0d 05 d2 14 dd a4 76 |able name......v|
000013c0 61 72 6e 61 6d 65 28 6e 61 6d 65 24 29 0d 05 dc |arname(name$)...|
000013d0 1d 6e 61 6d 65 24 3d c0 6e 61 6d 65 24 2b c4 31 |.name$=.name$+.1|
000013e0 31 2c 22 20 22 29 2c 31 31 29 0d 05 e6 0c 5b 4f |1," "),11)....[O|
000013f0 50 54 20 61 73 6d 0d 05 f0 11 45 51 55 53 20 6e |PT asm....EQUS n|
00001400 61 6d 65 24 2b bd 30 0d 05 fa 08 5d 3a 3d 30 0d |ame$+.0....]:=0.|
00001410 06 04 3d 3b 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |..=;------------|
00001420 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------|
*
00001440 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 0d 06 0e 1a |------------....|
00001450 f4 20 43 20 49 6e 74 65 72 66 61 63 65 20 72 6f |. C Interface ro|
00001460 75 74 69 6e 65 73 0d 06 18 1d f4 20 66 65 6e 74 |utines..... fent|
00001470 65 72 3d 45 6e 74 72 79 20 70 6f 69 6e 74 20 63 |er=Entry point c|
00001480 6f 64 65 0d 06 22 0c dd a4 66 65 6e 74 65 72 0d |ode.."...fenter.|
00001490 06 2c 0c 5b 4f 50 54 20 61 73 6d 0d 06 36 2c 4d |.,.[OPT asm..6,M|
000014a0 4f 56 20 52 31 32 2c 52 31 33 20 20 20 20 20 20 |OV R12,R13 |
000014b0 20 20 20 3b 20 53 61 76 65 20 73 74 61 63 6b 20 | ; Save stack |
000014c0 61 64 64 72 65 73 73 0d 06 40 1e 53 54 4d 46 44 |address..@.STMFD|
000014d0 20 52 31 33 21 2c 7b 52 34 2d 52 31 32 2c 52 31 | R13!,{R4-R12,R1|
000014e0 34 2c 50 43 7d 0d 06 4a 2b 53 55 42 20 52 31 31 |4,PC}..J+SUB R11|
000014f0 2c 52 31 32 2c 23 34 20 20 20 20 20 20 3b 20 6e |,R12,#4 ; n|
00001500 65 77 20 66 72 61 6d 65 20 70 6f 69 6e 74 65 72 |ew frame pointer|
00001510 0d 06 54 0d 42 4c 20 66 69 6e 69 74 43 0d 06 5e |..T.BL finitC..^|
00001520 08 5d 3a 3d 30 0d 06 68 04 0d 06 72 15 f4 20 66 |.]:=0..h...r.. f|
00001530 65 78 69 74 3d 45 78 69 74 20 63 6f 64 65 0d 06 |exit=Exit code..|
00001540 7c 0b dd a4 66 65 78 69 74 0d 06 86 0c 5b 4f 50 ||...fexit....[OP|
00001550 54 20 61 73 6d 0d 06 90 2b 42 20 66 65 78 69 74 |T asm...+B fexit|
00001560 63 20 20 20 20 20 20 20 20 20 20 20 20 20 3b 20 |c ; |
00001570 67 6f 20 74 6f 20 65 78 69 74 20 70 6f 69 6e 74 |go to exit point|
00001580 0d 06 9a 08 5d 3a 3d 30 0d 06 a4 04 0d 06 ae 20 |....]:=0....... |
00001590 f4 20 43 20 66 75 6e 63 74 69 6f 6e 20 72 6f 75 |. C function rou|
000015a0 74 69 6e 65 20 6c 69 6e 6b 61 67 65 0d 06 b8 10 |tine linkage....|
000015b0 dd a4 66 69 6e 74 65 72 66 61 63 65 0d 06 c2 0c |..finterface....|
000015c0 5b 4f 50 54 20 61 73 6d 0d 06 cc 1a 3b 20 45 78 |[OPT asm....; Ex|
000015d0 69 74 20 62 61 63 6b 20 74 6f 20 66 72 61 63 74 |it back to fract|
000015e0 61 6c 0d 06 d6 0b 2e 66 65 78 69 74 63 0d 06 e0 |al.....fexitc...|
000015f0 11 3b 20 52 65 74 75 72 6e 20 74 6f 20 43 0d 06 |.; Return to C..|
00001600 ea 28 3b 20 46 6f 6c 6c 6f 77 69 6e 67 20 63 61 |.(; Following ca|
00001610 75 73 65 73 20 72 65 63 75 72 73 69 6f 6e 20 70 |uses recursion p|
00001620 72 6f 62 6c 65 6d 0d 06 f4 29 3b 4c 44 52 20 52 |roblem...);LDR R|
00001630 31 31 2c 66 66 70 20 20 20 20 20 20 20 20 20 20 |11,ffp |
00001640 3b 20 66 72 61 6d 65 20 70 6f 69 6e 74 65 72 0d |; frame pointer.|
00001650 06 fe 1f 3b 4c 44 4d 45 41 20 52 31 31 2c 7b 52 |...;LDMEA R11,{R|
00001660 34 2d 52 31 31 2c 52 31 33 2c 50 43 7d 5e 0d 07 |4-R11,R13,PC}^..|
00001670 08 33 4c 44 4d 46 44 20 52 31 33 2c 7b 52 34 2d |.3LDMFD R13,{R4-|
00001680 52 31 31 2c 52 31 33 2c 50 43 7d 5e 20 20 20 20 |R11,R13,PC}^ |
00001690 20 20 3b 20 74 65 6d 70 6f 72 61 72 79 20 66 69 | ; temporary fi|
000016a0 78 0d 07 12 05 3b 0d 07 1c 1a 3b 20 49 6e 69 74 |x....;....; Init|
000016b0 69 61 6c 69 73 65 20 43 20 6c 69 6e 6b 61 67 65 |ialise C linkage|
000016c0 0d 07 26 0b 2e 66 69 6e 69 74 43 0d 07 30 1f 53 |..&..finitC..0.S|
000016d0 54 52 20 52 31 30 2c 66 6c 70 20 3b 20 6c 6f 77 |TR R10,flp ; low|
000016e0 20 73 74 61 63 6b 20 70 74 72 0d 07 3a 1b 53 54 | stack ptr..:.ST|
000016f0 52 20 52 31 31 2c 66 66 70 20 3b 20 66 72 61 6d |R R11,ffp ; fram|
00001700 65 20 70 74 72 0d 07 44 23 43 4d 50 20 52 30 2c |e ptr..D#CMP R0,|
00001710 23 66 69 6e 69 74 20 3b 20 49 66 20 69 6e 69 74 |#finit ; If init|
00001720 69 61 6c 20 63 61 6c 6c 0d 07 4e 36 4c 44 52 45 |ial call..N6LDRE|
00001730 51 20 52 34 2c 5b 52 31 2c 23 66 69 63 61 6c 6c |Q R4,[R1,#ficall|
00001740 5d 20 3b 20 47 65 74 20 61 64 64 72 65 73 73 20 |] ; Get address |
00001750 6f 66 20 43 20 69 6e 74 65 72 66 61 63 65 0d 07 |of C interface..|
00001760 58 16 53 54 52 45 51 20 52 34 2c 66 63 61 6c 6c |X.STREQ R4,fcall|
00001770 61 64 64 72 0d 07 62 0f 4d 4f 56 53 20 50 43 2c |addr..b.MOVS PC,|
00001780 52 31 34 0d 07 6c 05 3b 0d 07 76 2e 3b 20 54 68 |R14..l.;..v.; Th|
00001790 65 20 43 20 66 75 6e 63 74 69 6f 6e 20 69 6e 74 |e C function int|
000017a0 65 72 66 61 63 65 20 72 6f 75 74 69 6e 65 73 20 |erface routines |
000017b0 66 6f 6c 6c 6f 77 0d 07 80 05 3b 0d 07 8a 30 3b |follow....;...0;|
000017c0 20 66 6e 65 77 66 75 6e 63 2e 20 53 77 69 74 63 | fnewfunc. Switc|
000017d0 68 20 74 6f 20 61 20 6e 65 77 20 66 72 61 63 74 |h to a new fract|
000017e0 61 6c 20 66 75 6e 63 74 69 6f 6e 0d 07 94 3f 3b |al function...?;|
000017f0 20 4f 6e 20 65 6e 74 72 79 20 52 30 20 70 6f 69 | On entry R0 poi|
00001800 6e 74 73 20 74 6f 20 6e 61 6d 65 20 6f 66 20 66 |nts to name of f|
00001810 72 61 63 74 61 6c 20 66 75 6e 63 74 69 6f 6e 20 |ractal function |
00001820 61 73 20 69 6e 20 6d 65 6e 75 0d 07 9e 0d 2e 66 |as in menu.....f|
00001830 6e 65 77 66 75 6e 63 0d 07 a8 37 53 54 4d 46 44 |newfunc...7STMFD|
00001840 20 52 31 33 21 2c 7b 52 30 2d 52 33 2c 52 31 30 | R13!,{R0-R3,R10|
00001850 2d 52 31 32 2c 52 31 34 7d 20 3b 20 53 61 76 65 |-R12,R14} ; Save|
00001860 20 63 61 6c 6c 65 72 27 73 20 72 65 67 73 0d 07 | caller's regs..|
00001870 b2 28 53 54 52 20 52 30 2c 66 63 61 6c 6c 70 31 |.(STR R0,fcallp1|
00001880 20 3b 20 61 64 64 72 28 66 75 6e 63 74 69 6f 6e | ; addr(function|
00001890 20 6e 61 6d 65 29 0d 07 bc 15 4d 4f 56 20 52 30 | name)....MOV R0|
000018a0 2c 23 66 69 6e 65 77 66 75 6e 63 0d 07 c6 0c 42 |,#finewfunc....B|
000018b0 20 66 63 61 6c 6c 63 0d 07 d0 05 3b 0d 07 da 27 | fcallc....;...'|
000018c0 3b 20 66 78 79 73 74 61 72 74 2e 20 4f 70 65 6e |; fxystart. Open|
000018d0 20 78 2f 79 20 70 6f 69 6e 74 65 72 20 77 69 6e | x/y pointer win|
000018e0 64 6f 77 0d 07 e4 0d 2e 66 78 79 73 74 61 72 74 |dow.....fxystart|
000018f0 0d 07 ee 37 53 54 4d 46 44 20 52 31 33 21 2c 7b |...7STMFD R13!,{|
00001900 52 30 2d 52 33 2c 52 31 30 2d 52 31 32 2c 52 31 |R0-R3,R10-R12,R1|
00001910 34 7d 20 3b 20 53 61 76 65 20 63 61 6c 6c 65 72 |4} ; Save caller|
00001920 27 73 20 72 65 67 73 0d 07 f8 15 4d 4f 56 20 52 |'s regs....MOV R|
00001930 30 2c 23 66 69 78 79 73 74 61 72 74 0d 08 02 0c |0,#fixystart....|
00001940 42 20 66 63 61 6c 6c 63 0d 08 0c 05 3b 0d 08 16 |B fcallc....;...|
00001950 39 3b 20 66 63 61 6c 6c 63 2e 20 48 65 72 65 20 |9; fcallc. Here |
00001960 77 65 20 63 61 6c 6c 20 21 46 72 61 63 74 61 6c |we call !Fractal|
00001970 20 74 6f 20 70 65 72 66 6f 72 6d 20 61 20 66 75 | to perform a fu|
00001980 6e 63 74 69 6f 6e 0d 08 20 1d 3b 20 20 20 20 20 |nction.. .; |
00001990 20 20 20 20 ac 20 66 6f 72 20 75 73 65 72 20 75 | . for user u|
000019a0 73 65 21 0d 08 2a 0b 2e 66 63 61 6c 6c 63 0d 08 |se!..*..fcallc..|
000019b0 34 26 4c 44 52 20 52 31 30 2c 66 6c 70 20 20 20 |4&LDR R10,flp |
000019c0 20 20 20 3b 20 62 6f 74 74 6f 6d 20 6f 66 20 73 | ; bottom of s|
000019d0 74 61 63 6b 0d 08 3e 2d 41 44 52 20 52 31 2c 66 |tack..>-ADR R1,f|
000019e0 63 61 6c 6c 70 20 20 20 20 3b 20 61 64 64 72 65 |callp ; addre|
000019f0 73 73 20 70 61 72 61 6d 65 74 65 72 20 6c 69 73 |ss parameter lis|
00001a00 74 0d 08 48 25 41 44 52 20 52 31 34 2c 66 72 65 |t..H%ADR R14,fre|
00001a10 74 75 72 6e 20 20 3b 20 72 65 74 75 72 6e 20 61 |turn ; return a|
00001a20 64 64 72 65 73 73 0d 08 52 35 4c 44 52 20 50 43 |ddress..R5LDR PC|
00001a30 2c 66 63 61 6c 6c 61 64 64 72 20 3b 20 47 6f 20 |,fcalladdr ; Go |
00001a40 74 6f 20 21 46 72 61 63 74 61 6c 20 43 2f 41 53 |to !Fractal C/AS|
00001a50 4d 20 69 6e 74 65 72 66 61 63 65 0d 08 5c 0c 2e |M interface..\..|
00001a60 66 72 65 74 75 72 6e 0d 08 66 32 4c 44 4d 46 44 |freturn..f2LDMFD|
00001a70 20 52 31 33 21 2c 7b 52 30 2d 52 33 2c 52 31 30 | R13!,{R0-R3,R10|
00001a80 2d 52 31 32 2c 50 43 7d 20 3b 20 42 61 63 6b 20 |-R12,PC} ; Back |
00001a90 74 6f 20 63 61 6c 6c 65 72 0d 08 70 05 3b 0d 08 |to caller..p.;..|
00001aa0 7a 24 2e 66 6c 70 20 44 43 44 20 30 20 3b 20 62 |z$.flp DCD 0 ; b|
00001ab0 6f 74 74 6f 6d 20 6f 66 20 52 31 33 20 73 74 61 |ottom of R13 sta|
00001ac0 63 6b 0d 08 84 1e 2e 66 66 70 20 44 43 44 20 30 |ck.....ffp DCD 0|
00001ad0 20 3b 20 66 72 61 6d 65 20 70 6f 69 6e 74 65 72 | ; frame pointer|
00001ae0 0d 08 8e 14 2e 66 63 61 6c 6c 61 64 64 72 20 44 |.....fcalladdr D|
00001af0 43 44 20 30 0d 08 98 27 2e 66 63 61 6c 6c 70 20 |CD 0...'.fcallp |
00001b00 20 20 20 20 20 20 20 20 3b 20 50 61 72 61 6d 65 | ; Parame|
00001b10 74 65 72 73 20 66 6f 6c 6c 6f 77 0d 08 a2 12 2e |ters follow.....|
00001b20 66 63 61 6c 6c 70 31 20 44 43 44 20 30 0d 08 ac |fcallp1 DCD 0...|
00001b30 05 5d 0d 08 b6 06 3d 30 0d 08 c0 3d 2d 2d 2d 2d |.]....=0...=----|
00001b40 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------|
*
00001b70 2d 2d 2d 2d 2d 0d 08 ca 47 32 37 20 62 69 6e 61 |-----...G27 bina|
00001b80 72 79 20 70 6f 69 6e 74 20 6d 75 6c 74 69 70 6c |ry point multipl|
00001b90 79 20 72 6f 75 74 69 6e 65 73 20 62 61 73 65 64 |y routines based|
00001ba0 20 6f 6e 20 63 6f 64 65 20 62 79 20 41 6e 64 72 | on code by Andr|
00001bb0 65 77 20 46 65 64 6f 6e 63 7a 75 6b 0d 08 d4 3b |ew Fedonczuk...;|
00001bc0 33 32 20 62 69 74 20 4d 75 6c 74 69 70 6c 79 20 |32 bit Multiply |
00001bd0 66 6f 72 20 6e 75 6d 62 65 72 73 20 77 69 74 68 |for numbers with|
00001be0 20 32 37 20 62 69 6e 61 72 79 20 70 6f 69 6e 74 | 27 binary point|
00001bf0 20 70 6c 61 63 65 73 0d 08 de 24 4e 6f 20 63 68 | places...$No ch|
00001c00 65 63 6b 20 69 73 20 6d 61 64 65 20 66 6f 72 20 |eck is made for |
00001c10 61 20 72 65 73 75 6c 74 3e 31 36 0d 08 e8 25 dd |a result>16...%.|
00001c20 a4 6d 33 32 5f 32 37 28 52 65 73 48 69 67 68 2c |.m32_27(ResHigh,|
00001c30 6e 75 6d 31 2c 6e 75 6d 32 2c 77 72 65 67 73 29 |num1,num2,wregs)|
00001c40 0d 08 f2 0a 52 45 53 3d 32 37 0d 08 fc 19 ea 20 |....RES=27..... |
00001c50 6c 68 73 2c 72 68 73 2c 77 6f 72 6b 2c 52 65 73 |lhs,rhs,work,Res|
00001c60 4c 6f 77 0d 09 06 5d e7 20 52 65 73 48 69 67 68 |Low...]. ResHigh|
00001c70 3d 6e 75 6d 31 20 84 20 52 65 73 48 69 67 68 3d |=num1 . ResHigh=|
00001c80 6e 75 6d 32 20 84 20 6e 75 6d 31 3d 6e 75 6d 32 |num2 . num1=num2|
00001c90 20 f1 27 22 46 4e 6d 33 32 5f 32 37 3a 20 72 65 | .'"FNm32_27: re|
00001ca0 67 69 73 74 65 72 73 20 6d 75 73 74 20 62 65 20 |gisters must be |
00001cb0 61 6c 6c 20 64 69 66 66 65 72 65 6e 74 22 3a fa |all different":.|
00001cc0 0d 09 10 0d 6c 68 73 3d 77 72 65 67 73 0d 09 1a |....lhs=wregs...|
00001cd0 0f 72 68 73 3d 77 72 65 67 73 2b 31 0d 09 24 10 |.rhs=wregs+1..$.|
00001ce0 77 6f 72 6b 3d 77 72 65 67 73 2b 32 0d 09 2e 12 |work=wregs+2....|
00001cf0 52 65 73 4c 6f 77 3d 77 72 65 67 73 2b 33 0d 09 |ResLow=wregs+3..|
00001d00 38 0d 5b 20 4f 50 54 20 61 73 6d 0d 09 42 11 4d |8.[ OPT asm..B.M|
00001d10 4f 56 53 20 6c 68 73 2c 6e 75 6d 31 0d 09 4c 14 |OVS lhs,num1..L.|
00001d20 52 53 42 4d 49 20 6c 68 73 2c 6c 68 73 2c 23 30 |RSBMI lhs,lhs,#0|
00001d30 0d 09 56 11 4d 4f 56 53 20 72 68 73 2c 6e 75 6d |..V.MOVS rhs,num|
00001d40 32 0d 09 60 14 52 53 42 4d 49 20 72 68 73 2c 72 |2..`.RSBMI rhs,r|
00001d50 68 73 2c 23 30 0d 09 6a 18 4d 4f 56 20 77 6f 72 |hs,#0..j.MOV wor|
00001d60 6b 2c 6c 68 73 2c 4c 53 52 23 26 31 30 0d 09 74 |k,lhs,LSR#&10..t|
00001d70 1b 4d 4f 56 20 52 65 73 48 69 67 68 2c 72 68 73 |.MOV ResHigh,rhs|
00001d80 2c 4c 53 52 23 26 31 30 0d 09 7e 1c 42 49 43 20 |,LSR#&10..~.BIC |
00001d90 6c 68 73 2c 6c 68 73 2c 77 6f 72 6b 2c 4c 53 4c |lhs,lhs,work,LSL|
00001da0 23 26 31 30 0d 09 88 1f 42 49 43 20 72 68 73 2c |#&10....BIC rhs,|
00001db0 72 68 73 2c 52 65 73 48 69 67 68 2c 4c 53 4c 23 |rhs,ResHigh,LSL#|
00001dc0 26 31 30 0d 09 92 16 4d 55 4c 20 52 65 73 4c 6f |&10....MUL ResLo|
00001dd0 77 2c 6c 68 73 2c 72 68 73 0d 09 9c 14 4d 55 4c |w,lhs,rhs....MUL|
00001de0 20 72 68 73 2c 77 6f 72 6b 2c 72 68 73 0d 09 a6 | rhs,work,rhs...|
00001df0 17 4d 55 4c 20 6c 68 73 2c 52 65 73 48 69 67 68 |.MUL lhs,ResHigh|
00001e00 2c 6c 68 73 0d 09 b0 1c 4d 55 4c 20 52 65 73 48 |,lhs....MUL ResH|
00001e10 69 67 68 2c 77 6f 72 6b 2c 52 65 73 48 69 67 68 |igh,work,ResHigh|
00001e20 0d 09 ba 14 41 44 44 53 20 6c 68 73 2c 72 68 73 |....ADDS lhs,rhs|
00001e30 2c 6c 68 73 0d 09 c4 21 41 44 44 43 53 20 52 65 |,lhs...!ADDCS Re|
00001e40 73 48 69 67 68 2c 52 65 73 48 69 67 68 2c 23 26 |sHigh,ResHigh,#&|
00001e50 31 30 30 30 30 0d 09 ce 22 41 44 44 53 20 52 65 |10000..."ADDS Re|
00001e60 73 4c 6f 77 2c 52 65 73 4c 6f 77 2c 6c 68 73 2c |sLow,ResLow,lhs,|
00001e70 4c 53 4c 23 26 31 30 0d 09 d8 23 41 44 43 20 52 |LSL#&10...#ADC R|
00001e80 65 73 48 69 67 68 2c 52 65 73 48 69 67 68 2c 6c |esHigh,ResHigh,l|
00001e90 68 73 2c 4c 53 52 23 26 31 30 0d 09 e2 24 4d 4f |hs,LSR#&10...$MO|
00001ea0 56 20 52 65 73 48 69 67 68 2c 52 65 73 48 69 67 |V ResHigh,ResHig|
00001eb0 68 2c 4c 53 4c 23 28 33 32 2d 52 45 53 29 0d 09 |h,LSL#(32-RES)..|
00001ec0 ec 26 41 44 44 20 52 65 73 48 69 67 68 2c 52 65 |.&ADD ResHigh,Re|
00001ed0 73 48 69 67 68 2c 52 65 73 4c 6f 77 2c 4c 53 52 |sHigh,ResLow,LSR|
00001ee0 23 52 45 53 0d 09 f6 25 82 53 20 77 6f 72 6b 2c |#RES...%.S work,|
00001ef0 6e 75 6d 31 2c 6e 75 6d 32 20 3b 20 6d 75 6c 74 |num1,num2 ; mult|
00001f00 69 70 6c 79 20 73 69 67 6e 0d 0a 00 38 52 53 42 |iply sign...8RSB|
00001f10 4d 49 20 52 65 73 48 69 67 68 2c 52 65 73 48 69 |MI ResHigh,ResHi|
00001f20 67 68 2c 23 30 20 20 20 20 20 20 20 20 3b 20 73 |gh,#0 ; s|
00001f30 65 74 20 73 69 67 6e 20 6f 66 20 72 65 73 75 6c |et sign of resul|
00001f40 74 0d 0a 0a 05 5d 0d 0a 14 06 3d 30 0d 0a 1e 04 |t....]....=0....|
00001f50 0d 0a 28 3b 31 36 20 62 69 74 20 4d 75 6c 74 69 |..(;16 bit Multi|
00001f60 70 6c 79 20 66 6f 72 20 6e 75 6d 62 65 72 73 20 |ply for numbers |
00001f70 77 69 74 68 20 32 37 20 62 69 6e 61 72 79 20 70 |with 27 binary p|
00001f80 6f 69 6e 74 20 70 6c 61 63 65 73 0d 0a 32 2a 43 |oint places..2*C|
00001f90 61 6c 63 75 6c 61 74 65 64 20 74 6f 20 31 33 20 |alculated to 13 |
00001fa0 62 69 6e 61 72 79 20 70 6f 69 6e 74 20 61 63 63 |binary point acc|
00001fb0 75 72 61 63 79 0d 0a 3c 25 dd a4 6d 31 36 5f 32 |uracy..<%..m16_2|
00001fc0 37 28 52 65 73 48 69 67 68 2c 6e 75 6d 31 2c 6e |7(ResHigh,num1,n|
00001fd0 75 6d 32 2c 77 72 65 67 73 29 0d 0a 46 0d 6c 68 |um2,wregs)..F.lh|
00001fe0 73 3d 77 72 65 67 73 0d 0a 50 0f 72 68 73 3d 77 |s=wregs..P.rhs=w|
00001ff0 72 65 67 73 2b 31 0d 0a 5a 0d 5b 20 4f 50 54 20 |regs+1..Z.[ OPT |
00002000 61 73 6d 0d 0a 64 18 4d 4f 56 20 6c 68 73 2c 6e |asm..d.MOV lhs,n|
00002010 75 6d 31 2c 41 53 52 20 23 26 45 0d 0a 6e 18 4d |um1,ASR #&E..n.M|
00002020 4f 56 20 72 68 73 2c 6e 75 6d 32 2c 41 53 52 20 |OV rhs,num2,ASR |
00002030 23 26 45 0d 0a 78 17 4d 55 4c 20 52 65 73 48 69 |#&E..x.MUL ResHi|
00002040 67 68 2c 6c 68 73 2c 72 68 73 0d 0a 82 1f 4d 4f |gh,lhs,rhs....MO|
00002050 56 53 20 52 65 73 48 69 67 68 2c 52 65 73 48 69 |VS ResHigh,ResHi|
00002060 67 68 2c 4c 53 4c 23 26 31 0d 0a 8c 05 5d 0d 0a |gh,LSL#&1....]..|
00002070 96 06 3d 30 0d 0a a0 04 0d 0a aa 2f 53 71 75 61 |..=0......./Squa|
00002080 72 65 20 61 20 6e 75 6d 62 65 72 20 77 69 74 68 |re a number with|
00002090 20 32 37 20 62 69 6e 61 72 79 20 70 6f 69 6e 74 | 27 binary point|
000020a0 20 70 6c 61 63 65 73 0d 0a b4 30 72 65 73 3d 6e | places...0res=n|
000020b0 75 6d 2a 6e 75 6d 2e 20 6e 75 6d 68 69 20 26 20 |um*num. numhi & |
000020c0 74 65 6d 70 20 61 72 65 20 77 6f 72 6b 20 72 65 |temp are work re|
000020d0 67 69 73 74 65 72 73 0d 0a be 1b 53 65 74 73 20 |gisters....Sets |
000020e0 63 61 72 72 79 20 69 66 20 72 65 73 75 6c 74 3e |carry if result>|
000020f0 31 36 0d 0a c8 26 54 68 69 73 20 63 61 6c 63 75 |16...&This calcu|
00002100 6c 61 74 65 73 20 74 6f 20 32 36 20 62 69 74 20 |lates to 26 bit |
00002110 61 63 63 75 72 61 63 79 0d 0a d2 22 dd a4 73 71 |accuracy..."..sq|
00002120 72 33 32 5f 32 37 28 72 65 73 2c 6e 75 6d 2c 6e |r32_27(res,num,n|
00002130 75 6d 68 69 2c 74 65 6d 70 29 0d 0a dc 0c 5b 4f |umhi,temp)....[O|
00002140 50 54 20 61 73 6d 0d 0a e6 2e 4d 4f 56 53 20 72 |PT asm....MOVS r|
00002150 65 73 2c 6e 75 6d 2c 41 53 4c 20 23 32 20 20 20 |es,num,ASL #2 |
00002160 20 20 3b 20 74 6f 20 32 39 20 62 69 74 20 66 6f | ; to 29 bit fo|
00002170 72 6d 61 74 0d 0a f0 2d 52 53 42 4d 49 20 72 65 |rmat...-RSBMI re|
00002180 73 2c 72 65 73 2c 23 30 20 20 20 20 20 20 20 20 |s,res,#0 |
00002190 3b 20 6d 61 6b 65 20 2b 76 65 20 69 66 20 2d 76 |; make +ve if -v|
000021a0 65 0d 0a fa 29 4d 4f 56 20 6e 75 6d 68 69 2c 72 |e...)MOV numhi,r|
000021b0 65 73 2c 4c 53 52 20 23 31 36 20 20 20 3b 20 74 |es,LSR #16 ; t|
000021c0 6f 70 20 31 36 20 62 69 74 73 0d 0b 04 37 42 49 |op 16 bits...7BI|
000021d0 43 20 72 65 73 2c 72 65 73 2c 6e 75 6d 68 69 2c |C res,res,numhi,|
000021e0 4c 53 4c 20 23 31 36 20 20 20 20 20 20 20 3b 20 |LSL #16 ; |
000021f0 63 6c 65 61 72 20 74 6f 70 20 31 36 20 62 69 74 |clear top 16 bit|
00002200 73 0d 0b 0e 2b 4d 55 4c 20 74 65 6d 70 2c 6e 75 |s...+MUL temp,nu|
00002210 6d 68 69 2c 6e 75 6d 68 69 20 20 20 20 3b 20 73 |mhi,numhi ; s|
00002220 71 75 61 72 65 20 74 6f 70 20 31 36 0d 0b 18 32 |quare top 16...2|
00002230 4d 55 4c 20 72 65 73 2c 6e 75 6d 68 69 2c 72 65 |MUL res,numhi,re|
00002240 73 20 20 20 20 20 20 20 3b 20 73 71 75 61 72 65 |s ; square|
00002250 20 74 6f 70 2a 62 6f 74 74 6f 6d 20 31 36 0d 0b | top*bottom 16..|
00002260 22 34 41 44 44 20 72 65 73 2c 74 65 6d 70 2c 72 |"4ADD res,temp,r|
00002270 65 73 2c 4c 53 52 20 23 31 35 20 20 20 20 20 20 |es,LSR #15 |
00002280 20 20 3b 20 72 65 73 3d 74 65 6d 70 2b 32 2a 72 | ; res=temp+2*r|
00002290 65 73 0d 0b 2c 3e 4d 4f 56 53 20 72 65 73 2c 72 |es..,>MOVS res,r|
000022a0 65 73 2c 4c 53 4c 20 23 31 20 20 20 20 20 3b 20 |es,LSL #1 ; |
000022b0 62 61 63 6b 20 74 6f 20 32 37 20 62 69 74 20 66 |back to 27 bit f|
000022c0 6f 72 6d 61 74 20 26 20 73 65 74 20 73 69 67 6e |ormat & set sign|
000022d0 0d 0b 36 08 5d 3a 3d 30 0d 0b 40 04 0d 0b 4a 39 |..6.]:=0..@...J9|
000022e0 31 36 20 62 69 74 20 53 71 75 61 72 65 20 66 6f |16 bit Square fo|
000022f0 72 20 6e 75 6d 62 65 72 73 20 77 69 74 68 20 32 |r numbers with 2|
00002300 37 20 62 69 6e 61 72 79 20 70 6f 69 6e 74 20 70 |7 binary point p|
00002310 6c 61 63 65 73 0d 0b 54 1e 52 65 73 48 69 67 68 |laces..T.ResHigh|
00002320 3d 6e 75 6d 2a 6e 75 6d 3a 20 74 65 6d 70 3d 77 |=num*num: temp=w|
00002330 6f 72 6b 0d 0b 5e 2a 43 61 6c 63 75 6c 61 74 65 |ork..^*Calculate|
00002340 64 20 74 6f 20 31 33 20 62 69 6e 61 72 79 20 70 |d to 13 binary p|
00002350 6f 69 6e 74 20 61 63 63 75 72 61 63 79 0d 0b 68 |oint accuracy..h|
00002360 20 dd a4 73 71 72 31 36 5f 32 37 28 52 65 73 48 | ..sqr16_27(ResH|
00002370 69 67 68 2c 6e 75 6d 2c 77 6f 72 6b 29 0d 0b 72 |igh,num,work)..r|
00002380 0d 5b 20 4f 50 54 20 61 73 6d 0d 0b 7c 18 4d 4f |.[ OPT asm..|.MO|
00002390 56 20 77 6f 72 6b 2c 6e 75 6d 2c 41 53 52 20 23 |V work,num,ASR #|
000023a0 26 45 0d 0b 86 19 4d 55 4c 20 52 65 73 48 69 67 |&E....MUL ResHig|
000023b0 68 2c 77 6f 72 6b 2c 77 6f 72 6b 0d 0b 90 1f 4d |h,work,work....M|
000023c0 4f 56 53 20 52 65 73 48 69 67 68 2c 52 65 73 48 |OVS ResHigh,ResH|
000023d0 69 67 68 2c 4c 53 4c 23 26 31 0d 0b 9a 05 5d 0d |igh,LSL#&1....].|
000023e0 0b a4 06 3d 30 0d 0b ae 04 0d 0b b8 37 33 32 20 |...=0.......732 |
000023f0 62 69 74 20 64 69 76 69 64 65 20 77 69 74 68 20 |bit divide with |
00002400 76 61 72 69 61 62 6c 65 20 6e 75 6d 62 65 72 20 |variable number |
00002410 6f 66 20 62 69 6e 61 72 79 20 70 6c 61 63 65 73 |of binary places|
00002420 0d 0b c2 40 71 3d 71 75 6f 74 69 65 6e 74 2c 61 |...@q=quotient,a|
00002430 3d 64 69 76 69 64 65 6e 64 2c 62 3d 64 69 76 69 |=dividend,b=divi|
00002440 73 6f 72 2c 74 65 6d 70 3d 31 73 74 20 6f 66 20 |sor,temp=1st of |
00002450 34 20 77 6f 72 6b 20 72 65 67 69 73 74 65 72 73 |4 work registers|
00002460 0d 0b cc 38 73 68 69 66 74 20 3d 20 6e 75 6d 62 |...8shift = numb|
00002470 65 72 20 6f 66 20 62 69 6e 61 72 79 20 70 6c 61 |er of binary pla|
00002480 63 65 73 20 69 6e 20 73 6f 75 72 63 65 20 61 6e |ces in source an|
00002490 64 20 72 65 73 75 6c 74 0d 0b d6 31 4e 62 2e 20 |d result...1Nb. |
000024a0 6e 6f 20 63 68 65 63 6b 20 66 6f 72 20 6f 76 65 |no check for ove|
000024b0 72 66 6c 6f 77 20 6f 72 20 64 69 76 69 73 69 6f |rflow or divisio|
000024c0 6e 20 62 79 20 7a 65 72 6f 0d 0b e0 1d dd a4 64 |n by zero......d|
000024d0 69 76 66 70 28 71 2c 61 2c 62 2c 74 65 6d 70 2c |ivfp(q,a,b,temp,|
000024e0 73 68 69 66 74 29 0d 0b ea 3f e7 20 71 3d 61 20 |shift)...?. q=a |
000024f0 84 20 71 3d 62 20 f1 27 22 46 4e 64 69 76 69 64 |. q=b .'"FNdivid|
00002500 65 3a 20 72 65 67 69 73 74 65 72 73 20 6d 75 73 |e: registers mus|
00002510 74 20 62 65 20 61 6c 6c 20 64 69 66 66 65 72 65 |t be all differe|
00002520 6e 74 22 3a fa 0d 0b f4 1a ea 20 70 2c 72 2c 64 |nt":...... p,r,d|
00002530 69 76 69 64 65 6e 64 2c 64 69 76 69 73 6f 72 0d |ividend,divisor.|
00002540 0b fe 11 64 69 76 69 64 65 6e 64 3d 74 65 6d 70 |...dividend=temp|
00002550 0d 0c 08 12 64 69 76 69 73 6f 72 3d 74 65 6d 70 |....divisor=temp|
00002560 2b 31 0d 0c 12 0c 70 3d 74 65 6d 70 2b 32 0d 0c |+1....p=temp+2..|
00002570 1c 0c 72 3d 74 65 6d 70 2b 33 0d 0c 26 0c 5b 4f |..r=temp+3..&.[O|
00002580 50 54 20 61 73 6d 0d 0c 30 13 4d 4f 56 53 20 64 |PT asm..0.MOVS d|
00002590 69 76 69 64 65 6e 64 2c 61 0d 0c 3a 1e 52 53 42 |ividend,a..:.RSB|
000025a0 4d 49 20 64 69 76 69 64 65 6e 64 2c 64 69 76 69 |MI dividend,divi|
000025b0 64 65 6e 64 2c 23 30 0d 0c 44 12 4d 4f 56 53 20 |dend,#0..D.MOVS |
000025c0 64 69 76 69 73 6f 72 2c 62 0d 0c 4e 1c 52 53 42 |divisor,b..N.RSB|
000025d0 4d 49 20 64 69 76 69 73 6f 72 2c 64 69 76 69 73 |MI divisor,divis|
000025e0 6f 72 2c 23 30 0d 0c 58 27 4d 4f 56 20 72 2c 23 |or,#0..X'MOV r,#|
000025f0 30 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |0 |
00002600 20 3b 20 72 65 6d 61 69 6e 64 65 72 0d 0c 62 26 | ; remainder..b&|
00002610 4d 4f 56 20 71 2c 23 30 20 20 20 20 20 20 20 20 |MOV q,#0 |
00002620 20 20 20 20 20 20 20 20 3b 20 71 75 6f 74 69 65 | ; quotie|
00002630 6e 74 0d 0c 6c 2a 4d 4f 56 20 70 2c 23 31 3c 3c |nt..l*MOV p,#1<<|
00002640 33 31 20 20 20 20 20 20 20 20 20 20 20 20 3b 20 |31 ; |
00002650 70 6c 61 63 65 20 6d 61 72 6b 65 72 0d 0c 76 3a |place marker..v:|
00002660 2e 64 69 76 6c 6f 6f 70 20 20 20 20 20 20 20 20 |.divloop |
00002670 20 20 20 20 20 20 20 20 3b 20 6c 6f 6f 70 20 66 | ; loop f|
00002680 6f 72 20 61 6c 6c 20 33 32 20 69 6e 74 65 67 65 |or all 32 intege|
00002690 72 20 62 69 74 73 0d 0c 80 20 4d 4f 56 53 20 64 |r bits... MOVS d|
000026a0 69 76 69 64 65 6e 64 2c 64 69 76 69 64 65 6e 64 |ividend,dividend|
000026b0 2c 4c 53 4c 23 31 0d 0c 8a 34 41 44 43 20 72 2c |,LSL#1...4ADC r,|
000026c0 72 2c 72 20 20 20 20 20 20 20 20 20 20 20 20 20 |r,r |
000026d0 20 20 3b 20 73 68 69 66 74 20 69 6e 20 68 69 2d | ; shift in hi-|
000026e0 6f 72 64 65 72 20 62 69 74 73 0d 0c 94 2d 43 4d |order bits...-CM|
000026f0 50 20 72 2c 64 69 76 69 73 6f 72 20 20 20 20 20 |P r,divisor |
00002700 20 20 20 20 20 20 3b 20 6e 75 6d 62 65 72 3e 64 | ; number>d|
00002710 69 76 69 73 6f 72 3f 0d 0c 9e 3a 84 52 43 53 20 |ivisor?...:.RCS |
00002720 71 2c 71 2c 70 20 20 20 20 20 20 20 20 20 20 20 |q,q,p |
00002730 20 20 3b 20 79 65 73 20 2d 20 73 65 74 20 62 69 | ; yes - set bi|
00002740 74 20 69 6e 20 62 69 6e 61 72 79 20 70 6c 61 63 |t in binary plac|
00002750 65 0d 0c a8 35 53 55 42 43 53 20 72 2c 72 2c 64 |e...5SUBCS r,r,d|
00002760 69 76 69 73 6f 72 20 20 20 20 20 20 20 3b 20 64 |ivisor ; d|
00002770 69 73 63 61 72 64 20 61 63 63 6f 75 6e 74 65 64 |iscard accounted|
00002780 20 76 61 6c 75 65 0d 0c b2 2f 4d 4f 56 53 20 70 | value.../MOVS p|
00002790 2c 70 2c 4c 53 52 23 31 20 20 20 20 20 20 20 20 |,p,LSR#1 |
000027a0 20 20 3b 20 6e 65 78 74 20 62 69 6e 61 72 79 20 | ; next binary |
000027b0 70 6c 61 63 65 0d 0c bc 0f 42 4e 45 20 64 69 76 |place....BNE div|
000027c0 6c 6f 6f 70 0d 0c c6 2e 4d 4f 56 20 71 2c 71 2c |loop....MOV q,q,|
000027d0 4c 53 4c 23 73 68 69 66 74 20 20 20 20 20 20 20 |LSL#shift |
000027e0 3b 20 6e 6f 72 6d 61 6c 69 73 65 20 72 65 73 75 |; normalise resu|
000027f0 6c 74 0d 0c d0 38 4d 4f 56 20 70 2c 23 31 3c 3c |lt...8MOV p,#1<<|
00002800 73 68 69 66 74 2d 31 20 20 20 20 20 20 20 3b 20 |shift-1 ; |
00002810 6e 75 6d 62 65 72 20 62 69 6e 61 72 79 20 70 6c |number binary pl|
00002820 61 63 65 73 20 74 6f 20 64 6f 0d 0c da 2e 2e 64 |aces to do.....d|
00002830 69 76 6c 6f 6f 70 32 20 20 20 20 20 20 20 20 20 |ivloop2 |
00002840 20 20 20 20 20 20 3b 20 64 6f 20 62 69 6e 61 72 | ; do binar|
00002850 79 20 70 6c 61 63 65 73 0d 0c e4 2d 41 44 44 20 |y places...-ADD |
00002860 72 2c 72 2c 72 20 20 20 20 20 20 20 20 20 20 20 |r,r,r |
00002870 20 20 20 20 3b 20 73 68 69 66 74 20 75 70 20 6e | ; shift up n|
00002880 75 6d 62 65 72 0d 0c ee 2c 43 4d 50 20 72 2c 64 |umber...,CMP r,d|
00002890 69 76 69 73 6f 72 20 20 20 20 20 20 20 20 20 20 |ivisor |
000028a0 20 3b 20 6e 75 6d 62 65 72 3e 64 69 76 69 73 6f | ; number>diviso|
000028b0 72 0d 0c f8 3a 84 52 43 53 20 71 2c 71 2c 70 20 |r...:.RCS q,q,p |
000028c0 20 20 20 20 20 20 20 20 20 20 20 20 3b 20 79 65 | ; ye|
000028d0 73 20 2d 20 73 65 74 20 62 69 74 20 69 6e 20 62 |s - set bit in b|
000028e0 69 6e 61 72 79 20 70 6c 61 63 65 0d 0d 02 35 53 |inary place...5S|
000028f0 55 42 43 53 20 72 2c 72 2c 64 69 76 69 73 6f 72 |UBCS r,r,divisor|
00002900 20 20 20 20 20 20 20 3b 20 64 69 73 63 61 72 64 | ; discard|
00002910 20 61 63 63 6f 75 6e 74 65 64 20 76 61 6c 75 65 | accounted value|
00002920 0d 0d 0c 2f 4d 4f 56 53 20 70 2c 70 2c 4c 53 52 |.../MOVS p,p,LSR|
00002930 23 31 20 20 20 20 20 20 20 20 20 20 3b 20 6e 65 |#1 ; ne|
00002940 78 74 20 62 69 6e 61 72 79 20 70 6c 61 63 65 0d |xt binary place.|
00002950 0d 16 10 42 4e 45 20 64 69 76 6c 6f 6f 70 32 0d |...BNE divloop2.|
00002960 0d 20 2e 82 53 20 70 2c 61 2c 62 20 20 20 20 20 |. ..S p,a,b |
00002970 20 20 20 20 20 20 20 20 20 3b 20 67 65 74 20 73 | ; get s|
00002980 69 67 6e 20 6f 66 20 72 65 73 75 6c 74 0d 0d 2a |ign of result..*|
00002990 31 52 53 42 4d 49 20 71 2c 71 2c 23 30 20 20 20 |1RSBMI q,q,#0 |
000029a0 20 20 20 20 20 20 20 20 20 3b 20 61 6e 64 20 61 | ; and a|
000029b0 64 6a 75 73 74 20 71 75 6f 74 69 65 6e 74 0d 0d |djust quotient..|
000029c0 34 08 5d 3a 3d 30 0d 0d 3e 04 0d 0d 48 43 4d 75 |4.]:=0..>...HCMu|
000029d0 6c 74 69 70 6c 79 20 74 77 6f 20 6e 75 6d 62 65 |ltiply two numbe|
000029e0 72 73 20 77 69 74 68 20 31 36 20 62 69 6e 61 72 |rs with 16 binar|
000029f0 79 20 70 6c 61 63 65 73 20 77 69 74 68 20 38 20 |y places with 8 |
00002a00 62 69 74 20 70 72 65 63 69 73 69 6f 6e 0d 0d 52 |bit precision..R|
00002a10 1b dd a4 6d 31 36 5f 31 36 28 52 6e 2c 52 78 2c |...m16_16(Rn,Rx,|
00002a20 52 79 2c 77 6f 72 6b 29 0d 0d 5c 0c 5b 4f 50 54 |Ry,work)..\.[OPT|
00002a30 20 61 73 6d 0d 0d 66 16 4d 4f 56 20 77 6f 72 6b | asm..f.MOV work|
00002a40 2c 52 78 2c 41 53 52 20 23 38 0d 0d 70 1a 4d 4f |,Rx,ASR #8..p.MO|
00002a50 56 20 28 77 6f 72 6b 2b 31 29 2c 52 79 2c 41 53 |V (work+1),Ry,AS|
00002a60 52 20 23 38 0d 0d 7a 18 4d 55 4c 20 52 6e 2c 77 |R #8..z.MUL Rn,w|
00002a70 6f 72 6b 2c 28 77 6f 72 6b 2b 31 29 0d 0d 84 08 |ork,(work+1)....|
00002a80 5d 3a 3d 30 0d 0d 8e 04 0d 0d 98 3e 53 71 75 61 |]:=0.......>Squa|
00002a90 72 65 20 61 20 6e 75 6d 62 65 72 20 77 69 74 68 |re a number with|
00002aa0 20 31 36 20 62 69 6e 61 72 79 20 70 6c 61 63 65 | 16 binary place|
00002ab0 73 20 77 69 74 68 20 38 20 62 69 74 20 70 72 65 |s with 8 bit pre|
00002ac0 63 69 73 69 6f 6e 0d 0d a2 1a dd a4 73 71 72 31 |cision......sqr1|
00002ad0 36 5f 31 36 28 52 6e 2c 52 78 2c 77 6f 72 6b 29 |6_16(Rn,Rx,work)|
00002ae0 0d 0d ac 0c 5b 4f 50 54 20 61 73 6d 0d 0d b6 16 |....[OPT asm....|
00002af0 4d 4f 56 20 77 6f 72 6b 2c 52 78 2c 41 53 52 20 |MOV work,Rx,ASR |
00002b00 23 38 0d 0d c0 14 4d 55 4c 20 52 6e 2c 77 6f 72 |#8....MUL Rn,wor|
00002b10 6b 2c 77 6f 72 6b 0d 0d ca 08 5d 3a 3d 30 0d 0d |k,work....]:=0..|
00002b20 d4 34 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |.4--------------|
00002b30 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------|
*
00002b50 2d 2d 0d 0d de 23 53 69 6d 70 6c 65 20 4d 65 6e |--...#Simple Men|
00002b60 75 20 63 72 65 61 74 69 6f 6e 20 66 75 6e 63 74 |u creation funct|
00002b70 69 6f 6e 73 2e 0d 0d e8 4d 66 6d 65 6e 75 5f 68 |ions....Mfmenu_h|
00002b80 64 72 20 3a 20 63 6f 6d 65 73 20 66 69 72 73 74 |dr : comes first|
00002b90 2e 20 53 75 70 70 6c 79 20 74 69 74 6c 65 20 28 |. Supply title (|
00002ba0 31 2d 31 32 20 63 68 61 72 73 29 20 61 6e 64 20 |1-12 chars) and |
00002bb0 77 69 64 74 68 20 6f 66 20 66 6f 6c 6c 6f 77 69 |width of followi|
00002bc0 6e 67 0d 0d f2 1c 20 20 20 20 20 20 20 20 20 20 |ng.... |
00002bd0 20 20 69 74 65 6d 73 20 28 31 2d 31 32 29 0d 0d | items (1-12)..|
00002be0 fc 1e dd a4 66 6d 65 6e 75 5f 68 64 72 28 74 69 |....fmenu_hdr(ti|
00002bf0 74 6c 65 24 2c 77 69 64 74 68 25 29 0d 0e 06 44 |tle$,width%)...D|
00002c00 24 4f 25 3d 74 69 74 6c 65 24 2b bd 30 3a 4f 25 |$O%=title$+.0:O%|
00002c10 21 31 32 3d 26 30 41 30 37 30 32 30 37 3a 4f 25 |!12=&0A070207:O%|
00002c20 21 31 36 3d 77 69 64 74 68 25 2a 31 36 2b 36 3a |!16=width%*16+6:|
00002c30 4f 25 21 32 30 3d 34 34 3a 4f 25 21 32 34 3d 30 |O%!20=44:O%!24=0|
00002c40 0d 0e 10 11 4f 25 2b 3d 32 38 3a 50 25 2b 3d 32 |....O%+=28:P%+=2|
00002c50 38 0d 0e 1a 06 3d 30 0d 0e 24 04 0d 0e 2e 3f 66 |8....=0..$....?f|
00002c60 6d 65 6e 75 5f 69 74 65 6d 20 3a 20 64 65 66 69 |menu_item : defi|
00002c70 6e 65 73 20 61 20 6d 65 6e 75 20 69 74 65 6d 2e |nes a menu item.|
00002c80 20 53 75 70 70 6c 79 20 74 65 78 74 20 28 31 2d | Supply text (1-|
00002c90 31 32 20 63 68 61 72 73 29 2c 0d 0e 38 4d 73 75 |12 chars),..8Msu|
00002ca0 62 6d 65 6e 75 20 70 74 72 20 2d 20 74 68 65 20 |bmenu ptr - the |
00002cb0 61 64 64 72 65 73 73 20 6f 66 20 61 20 66 6d 65 |address of a fme|
00002cc0 6e 75 5f 68 64 72 2c 20 61 20 77 69 6e 64 6f 77 |nu_hdr, a window|
00002cd0 20 68 61 6e 64 6c 65 20 6f 72 20 2d 31 20 69 66 | handle or -1 if|
00002ce0 20 6e 6f 20 70 74 72 0d 0e 42 49 61 6e 64 20 61 | no ptr..BIand a|
00002cf0 20 66 6c 61 67 20 62 79 74 65 20 2d 20 75 73 65 | flag byte - use|
00002d00 20 74 68 65 20 73 79 6d 62 6f 6c 20 4c 41 53 54 | the symbol LAST|
00002d10 20 74 6f 20 64 65 6e 6f 74 65 20 65 6e 64 20 6f | to denote end o|
00002d20 66 20 74 68 65 20 6d 65 6e 75 20 6c 69 73 74 2e |f the menu list.|
00002d30 0d 0e 4c 22 dd a4 66 6d 65 6e 75 5f 69 74 65 6d |..L"..fmenu_item|
00002d40 28 74 65 78 74 24 2c 70 74 72 25 2c 66 6c 61 67 |(text$,ptr%,flag|
00002d50 25 29 0d 0e 56 38 21 4f 25 3d 66 6c 61 67 25 3a |%)..V8!O%=flag%:|
00002d60 4f 25 21 34 3d 70 74 72 25 3a 4f 25 21 38 3d 26 |O%!4=ptr%:O%!8=&|
00002d70 30 37 30 30 30 30 32 31 3a 24 28 4f 25 2b 31 32 |07000021:$(O%+12|
00002d80 29 3d 74 65 78 74 24 2b bd 30 0d 0e 60 11 4f 25 |)=text$+.0..`.O%|
00002d90 2b 3d 32 34 3a 50 25 2b 3d 32 34 0d 0e 6a 06 3d |+=24:P%+=24..j.=|
00002da0 30 0d ff |0..|
00002da3 
.