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InTheMag/AcornAns/FastFastDv

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.

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Tape/disk: Home » Archimedes archive » Archimedes World » AW-1995-05-Disc1.adf » AWMay95_1
Filename: InTheMag/AcornAns/FastFastDv
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File size: 0E8A bytes
Load address: 0000
Exec address: 0000
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File contents
   10REM >FastFastDv
   20REM Fast DIV/MOD with a constant number
   30REM code fragment to test fastdiv/mod code generation
   40REM Author of code generator: Michael Rozdoba, based on algorithm
   50REM     of initial design by: Samuel K.R. Smith
   60REM      further modified by: Michael Rozdoba
   70
   80ONERROR:PROCerr:END
   90MODE 0
  100
  110spoolpath$ = "FFDdemo"
  120spool%=FALSE
  130IF spool% OSCLI("Spool "+spoolpath$)
  140
  150PRINT '"Fast Integer Division Code for arbitrary CONSTANT Divisor -"
  160PRINT "Compilation & testing:"'
  170PRINT "This program lists the divisors it is testing & disassembles each routine,"
  180PRINT "each of which calculates R0 = R2 DIV divisor, R1 = R2 MOD divisor."
  190PRINT "If it finds an error it prints the details and waits for a key press."''
  200
  210REM Load generator code
  220SYS "OS_File",   5, "Generator.Generator" TO gentyp%,,,,genlen%
  230IF gentyp%<>1 ERROR 1, "Generator code file not found"
  240DIM generator% genlen%
  250SYS "OS_File", 255, "Generator.Generator", generator%, 0
  260
  270DIM code% &400
  280r0=0:r1=1:r2=2:r3=3
  290
  300Q%=1000
  310R%=&7FFFFFFF-Q%
  320S%=&80000000+Q%
  330maxc%=0: nmaxc%=0: totc%=0: cnt%=0
  340
  350Zbase%=1
  360Zrange%=100000
  370
  380Z%=Zbase%
  390REPEAT
  400  PROCcheck( Z%,-Q%,Q%, 1)
  410  PROCcheck(-Z%,-Q%,Q%, 2)
  420  PROCcheck( Z%,R%,&7FFFFFFF, 0)
  430  PROCcheck(-Z%,R%,&7FFFFFFF, 0)
  440  PROCcheck( Z%,&80000000,S%, 0)
  450  PROCcheck(-Z%,&80000000,S%, 0)
  460  PROCcheck( Z%,-Q%,Q%, 100+0)
  470  PROCcheck(-Z%,-Q%,Q%, 100-1)
  480  cnt% += 1
  490  l% =(aft%-fore%)/4
  500  totc% += l%
  510  IF l%>maxc% THEN
  520    maxc% = l%
  530    nmaxc%= Z%
  540  ENDIF
  550  PRINT"Current max code length ";maxc%;" instructions for divisor ";FNnstr(nmaxc%)
  560  PRINT"Average code length ";totc%/cnt%;" instructions"''
  570Z%+=1
  580UNTIL Z%=Zbase%+Zrange%
  590ERROR 1, "All done"
  600
  610END
  620
  630DEFPROCcheck(N%,START%,FINISH%, report%)
  640LOCAL l%, rnd%
  650PROCasstst(N%):REM produce the code then test it!
  660
  670IF report%>50 rnd%=TRUE:report%-=100 ELSE rnd%=FALSE
  680IF report% < 1 PRINT ;", ";FNnstr(N%);
  690IF report% =-1 PRINT
  700IF report%=1 THEN
  710  PRINT"Checking division by &";~N%;" = ";N%
  720  l% =(aft%-fore%)/4
  730  PRINT"Using code, length ";l%;" instructions:"
  740  PROCdis(fore%, aft%)
  750ENDIF
  760IF report%=2 PRINT"Further checks for ";FNnstr(N%);
  770
  780IF rnd% A%=RND(-1)
  790FOR F%=START% TO FINISH% STEP 1
  800  IF rnd% THEN
  810    IF RND(2)=1 C%=RND(&7FFFFFFF)-&40000000 ELSE C%=RND(&0007FFFF)-&00040000
  820  ELSE
  830    C%=F%
  840  ENDIF
  850  A%=USR(code%):B%=!r%
  860  D%=C% DIV N%:E%=C% MOD N%
  870  IF (A%<>D%)OR(B%<>E%) THEN
  880     PRINT"Error Found: ";~C%;" DIV ";~N%;"=";~A%;" ";
  890     PRINT;~C%;" MOD ";~N%;"=";~B%;" should be ";~D%;" and ";~E%
  900     IF spool%=FALSE G=GET
  910  ENDIF
  920NEXT
  930ENDPROC
  940
  950DEFPROCasstst(n%)
  960r0=0:r1=1:r2=2:r3=3:r4=4:r5=5:lr=14
  970
  980REM require workReg if n% can't be expressed as a valid immediate const
  990workR=r4
 1000
 1010signpresR=r3
 1020
 1030FOR pass%=0 TO 2 STEP 2
 1040P%=code%
 1050[          OPT pass%
 1060.fore%     OPT FNFastDiv(r0,r1,r2,n%,signpresR,workR,pass%)
 1070.aft%      STR r1,r%
 1080           MOV pc,lr
 1090.r%        EQUD 0
 1100]
 1110NEXT
 1120ENDPROC
 1130
 1140DEF FNFastDiv(outq%, outr%, num%, const%, signpres%, work%, pass%)
 1150LOCAL len%
 1160A%   = const%
 1170B%   = P%
 1180C%   = num%
 1190D%   = outq%
 1200E%   = outr%
 1210F%   = work%
 1220G%   = signpres%
 1230len% = USR generator%
 1240IF len%<0 ERROR 1, "Generator call has failed, code "+STR$(len%)
 1250P%  += len%
 1260     = pass%
 1270
 1280DEF PROCdis(a%, b%)
 1290LOCAL q%, w%, q$, i%
 1300FOR q%=a% TO b%-1 STEP 4
 1310 SYS &40380, !q%, q% TO ,x%,y%
 1320 q$=""
 1330 FOR w%=x% TO x%+y%-1
 1340  q$+=CHR$(?w%)
 1350 NEXT
 1360 i% = INSTR(q$, ";")
 1370 IF i%>1 THEN
 1380  FOR w%=i%-1 TO 1 STEP -1
 1390   IF MID$(q$, w%, 1) <> " " THEN
 1400    q$ = LEFT$(q$, w%)
 1410    w%=0
 1420   ENDIF
 1430  NEXT
 1440 ENDIF
 1450 PRINT q$
 1460NEXT
 1470ENDPROC
 1480
 1490DEF FNnstr(n%)
 1500IF ABS(n%)<65536 THEN
 1510 = STR$(n%)
 1520ELSE
 1530 = "&"+STR$~(n%)
 1540ENDIF
 1550
 1560DEF PROCerr
 1570ON ERROR OFF
 1580REPORT:PRINT" with code: ";ERL/10
 1590IF spool% THEN
 1600 *Spool
 1610 spool%=FALSE
 1620 OSCLI("SetType "+spoolpath$+" Text")
 1630ENDIF
 1640ENDPROC

� >FastFastDv
)� Fast DIV/MOD with a constant number
7� code fragment to test fastdiv/mod code generation
(C� Author of code generator: Michael Rozdoba, based on algorithm
21�     of initial design by: Samuel K.R. Smith
</�      further modified by: Michael Rozdoba
F
P
�:�err:�
Z� 0
d
nspoolpath$ = "FFDdemo"
xspool%=�
�#� spool% �("Spool "+spoolpath$)
�
�D� '"Fast Integer Division Code for arbitrary CONSTANT Divisor -"
�� "Compilation & testing:"'
�R� "This program lists the divisors it is testing & disassembles each routine,"
�J� "each of which calculates R0 = R2 DIV divisor, R1 = R2 MOD divisor."
�O� "If it finds an error it prints the details and waits for a key press."''
�
�� Load generator code
�Aș "OS_File",   5, "Generator.Generator" � gentyp%,,,,genlen%
�5� gentyp%<>1 � 1, "Generator code file not found"
�� generator% genlen%
�;ș "OS_File", 255, "Generator.Generator", generator%, 0

� code% &400
r0=0:r1=1:r2=2:r3=3
"
,Q%=1000
6R%=&7FFFFFFF-Q%
@S%=&80000000+Q%
J&maxc%=0: nmaxc%=0: totc%=0: cnt%=0
T
^Zbase%=1
hZrange%=100000
r
|
Z%=Zbase%
��
�  �check( Z%,-Q%,Q%, 1)
�  �check(-Z%,-Q%,Q%, 2)
�!  �check( Z%,R%,&7FFFFFFF, 0)
�!  �check(-Z%,R%,&7FFFFFFF, 0)
�!  �check( Z%,&80000000,S%, 0)
�!  �check(-Z%,&80000000,S%, 0)
�  �check( Z%,-Q%,Q%, 100+0)
�  �check(-Z%,-Q%,Q%, 100-1)
�  cnt% += 1
�  l% =(aft%-fore%)/4
�  totc% += l%
�  � l%>maxc% �
    maxc% = l%
    nmaxc%= Z%
  �
&R  �"Current max code length ";maxc%;" instructions for divisor ";�nstr(nmaxc%)
0:  �"Average code length ";totc%/cnt%;" instructions"''
:	Z%+=1
D� Z%=Zbase%+Zrange%
N� 1, "All done"
X
b�
l
v'��check(N%,START%,FINISH%, report%)
�� l%, rnd%
�0�asstst(N%):� produce the code then test it!
�
�-� report%>50 rnd%=�:report%-=100 � rnd%=�
�$� report% < 1 � ;", ";�nstr(N%);
�� report% =-1 �
�� report%=1 �
�,  �"Checking division by &";~N%;" = ";N%
�  l% =(aft%-fore%)/4
�0  �"Using code, length ";l%;" instructions:"
�  �dis(fore%, aft%)
��
�1� report%=2 �"Further checks for ";�nstr(N%);

� rnd% A%=�(-1)
� F%=START% � FINISH% � 1
   � rnd% �
*F    � �(2)=1 C%=�(&7FFFFFFF)-&40000000 � C%=�(&0007FFFF)-&00040000
4  �
>
    C%=F%
H  �
R  A%=�(code%):B%=!r%
\  D%=C% � N%:E%=C% � N%
f  � (A%<>D%)�(B%<>E%) �
p6     �"Error Found: ";~C%;" DIV ";~N%;"=";~A%;" ";
z@     �;~C%;" MOD ";~N%;"=";~B%;" should be ";~D%;" and ";~E%
�     � spool%=� G=�
�  �
��
��
�
���asstst(n%)
�'r0=0:r1=1:r2=2:r3=3:r4=4:r5=5:lr=14
�
�I� require workReg if n% can't be expressed as a valid immediate const
�workR=r4
�
�signpresR=r3
�
� pass%=0 � 2 � 2
P%=code%
[          OPT pass%
$>.fore%     OPT �FastDiv(r0,r1,r2,n%,signpresR,workR,pass%)
..aft%      STR r1,r%
8           MOV pc,lr
B.r%        EQUD 0
L]
V�
`�
j
tC� �FastDiv(outq%, outr%, num%, const%, signpres%, work%, pass%)
~
� len%
�A%   = const%
�
B%   = P%
�C%   = num%
�D%   = outq%
�E%   = outr%
�F%   = work%
�G%   = signpres%
�len% = � generator%
�<� len%<0 � 1, "Generator call has failed, code "+�(len%)
�P%  += len%
�     = pass%
�
� �dis(a%, b%)

� q%, w%, q$, i%
� q%=a% � b%-1 � 4
  ș &40380, !q%, q% � ,x%,y%
(
 q$=""
2 � w%=x% � x%+y%-1
<  q$+=�(?w%)
F �
P i% = �q$, ";")
Z
 � i%>1 �
d  � w%=i%-1 � 1 � -1
n   � �q$, w%, 1) <> " " �
x    q$ = �q$, w%)
�    w%=0
�   �
�  �
� �
�	 � q$
��
��
�
�� �nstr(n%)
�� �(n%)<65536 �
� = �(n%)
��
� = "&"+�~(n%)
�


� �err
"	� � �
,�:�" with code: ";�/10
6� spool% �
@ *Spool
J
 spool%=�
T% �("SetType "+spoolpath$+" Text")
^�
h�
�
00000000  0d 00 0a 11 f4 20 3e 46  61 73 74 46 61 73 74 44  |..... >FastFastD|
00000010  76 0d 00 14 29 f4 20 46  61 73 74 20 44 49 56 2f  |v...). Fast DIV/|
00000020  4d 4f 44 20 77 69 74 68  20 61 20 63 6f 6e 73 74  |MOD with a const|
00000030  61 6e 74 20 6e 75 6d 62  65 72 0d 00 1e 37 f4 20  |ant number...7. |
00000040  63 6f 64 65 20 66 72 61  67 6d 65 6e 74 20 74 6f  |code fragment to|
00000050  20 74 65 73 74 20 66 61  73 74 64 69 76 2f 6d 6f  | test fastdiv/mo|
00000060  64 20 63 6f 64 65 20 67  65 6e 65 72 61 74 69 6f  |d code generatio|
00000070  6e 0d 00 28 43 f4 20 41  75 74 68 6f 72 20 6f 66  |n..(C. Author of|
00000080  20 63 6f 64 65 20 67 65  6e 65 72 61 74 6f 72 3a  | code generator:|
00000090  20 4d 69 63 68 61 65 6c  20 52 6f 7a 64 6f 62 61  | Michael Rozdoba|
000000a0  2c 20 62 61 73 65 64 20  6f 6e 20 61 6c 67 6f 72  |, based on algor|
000000b0  69 74 68 6d 0d 00 32 31  f4 20 20 20 20 20 6f 66  |ithm..21.     of|
000000c0  20 69 6e 69 74 69 61 6c  20 64 65 73 69 67 6e 20  | initial design |
000000d0  62 79 3a 20 53 61 6d 75  65 6c 20 4b 2e 52 2e 20  |by: Samuel K.R. |
000000e0  53 6d 69 74 68 0d 00 3c  2f f4 20 20 20 20 20 20  |Smith..</.      |
000000f0  66 75 72 74 68 65 72 20  6d 6f 64 69 66 69 65 64  |further modified|
00000100  20 62 79 3a 20 4d 69 63  68 61 65 6c 20 52 6f 7a  | by: Michael Roz|
00000110  64 6f 62 61 0d 00 46 04  0d 00 50 0d ee 85 3a f2  |doba..F...P...:.|
00000120  65 72 72 3a e0 0d 00 5a  07 eb 20 30 0d 00 64 04  |err:...Z.. 0..d.|
00000130  0d 00 6e 1a 73 70 6f 6f  6c 70 61 74 68 24 20 3d  |..n.spoolpath$ =|
00000140  20 22 46 46 44 64 65 6d  6f 22 0d 00 78 0c 73 70  | "FFDdemo"..x.sp|
00000150  6f 6f 6c 25 3d a3 0d 00  82 23 e7 20 73 70 6f 6f  |ool%=....#. spoo|
00000160  6c 25 20 ff 28 22 53 70  6f 6f 6c 20 22 2b 73 70  |l% .("Spool "+sp|
00000170  6f 6f 6c 70 61 74 68 24  29 0d 00 8c 04 0d 00 96  |oolpath$).......|
00000180  44 f1 20 27 22 46 61 73  74 20 49 6e 74 65 67 65  |D. '"Fast Intege|
00000190  72 20 44 69 76 69 73 69  6f 6e 20 43 6f 64 65 20  |r Division Code |
000001a0  66 6f 72 20 61 72 62 69  74 72 61 72 79 20 43 4f  |for arbitrary CO|
000001b0  4e 53 54 41 4e 54 20 44  69 76 69 73 6f 72 20 2d  |NSTANT Divisor -|
000001c0  22 0d 00 a0 1f f1 20 22  43 6f 6d 70 69 6c 61 74  |"..... "Compilat|
000001d0  69 6f 6e 20 26 20 74 65  73 74 69 6e 67 3a 22 27  |ion & testing:"'|
000001e0  0d 00 aa 52 f1 20 22 54  68 69 73 20 70 72 6f 67  |...R. "This prog|
000001f0  72 61 6d 20 6c 69 73 74  73 20 74 68 65 20 64 69  |ram lists the di|
00000200  76 69 73 6f 72 73 20 69  74 20 69 73 20 74 65 73  |visors it is tes|
00000210  74 69 6e 67 20 26 20 64  69 73 61 73 73 65 6d 62  |ting & disassemb|
00000220  6c 65 73 20 65 61 63 68  20 72 6f 75 74 69 6e 65  |les each routine|
00000230  2c 22 0d 00 b4 4a f1 20  22 65 61 63 68 20 6f 66  |,"...J. "each of|
00000240  20 77 68 69 63 68 20 63  61 6c 63 75 6c 61 74 65  | which calculate|
00000250  73 20 52 30 20 3d 20 52  32 20 44 49 56 20 64 69  |s R0 = R2 DIV di|
00000260  76 69 73 6f 72 2c 20 52  31 20 3d 20 52 32 20 4d  |visor, R1 = R2 M|
00000270  4f 44 20 64 69 76 69 73  6f 72 2e 22 0d 00 be 4f  |OD divisor."...O|
00000280  f1 20 22 49 66 20 69 74  20 66 69 6e 64 73 20 61  |. "If it finds a|
00000290  6e 20 65 72 72 6f 72 20  69 74 20 70 72 69 6e 74  |n error it print|
000002a0  73 20 74 68 65 20 64 65  74 61 69 6c 73 20 61 6e  |s the details an|
000002b0  64 20 77 61 69 74 73 20  66 6f 72 20 61 20 6b 65  |d waits for a ke|
000002c0  79 20 70 72 65 73 73 2e  22 27 27 0d 00 c8 04 0d  |y press."''.....|
000002d0  00 d2 19 f4 20 4c 6f 61  64 20 67 65 6e 65 72 61  |.... Load genera|
000002e0  74 6f 72 20 63 6f 64 65  0d 00 dc 41 c8 99 20 22  |tor code...A.. "|
000002f0  4f 53 5f 46 69 6c 65 22  2c 20 20 20 35 2c 20 22  |OS_File",   5, "|
00000300  47 65 6e 65 72 61 74 6f  72 2e 47 65 6e 65 72 61  |Generator.Genera|
00000310  74 6f 72 22 20 b8 20 67  65 6e 74 79 70 25 2c 2c  |tor" . gentyp%,,|
00000320  2c 2c 67 65 6e 6c 65 6e  25 0d 00 e6 35 e7 20 67  |,,genlen%...5. g|
00000330  65 6e 74 79 70 25 3c 3e  31 20 85 20 31 2c 20 22  |entyp%<>1 . 1, "|
00000340  47 65 6e 65 72 61 74 6f  72 20 63 6f 64 65 20 66  |Generator code f|
00000350  69 6c 65 20 6e 6f 74 20  66 6f 75 6e 64 22 0d 00  |ile not found"..|
00000360  f0 18 de 20 67 65 6e 65  72 61 74 6f 72 25 20 67  |... generator% g|
00000370  65 6e 6c 65 6e 25 0d 00  fa 3b c8 99 20 22 4f 53  |enlen%...;.. "OS|
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00000390  6e 65 72 61 74 6f 72 2e  47 65 6e 65 72 61 74 6f  |nerator.Generato|
000003a0  72 22 2c 20 67 65 6e 65  72 61 74 6f 72 25 2c 20  |r", generator%, |
000003b0  30 0d 01 04 04 0d 01 0e  10 de 20 63 6f 64 65 25  |0......... code%|
000003c0  20 26 34 30 30 0d 01 18  17 72 30 3d 30 3a 72 31  | &400....r0=0:r1|
000003d0  3d 31 3a 72 32 3d 32 3a  72 33 3d 33 0d 01 22 04  |=1:r2=2:r3=3..".|
000003e0  0d 01 2c 0b 51 25 3d 31  30 30 30 0d 01 36 13 52  |..,.Q%=1000..6.R|
000003f0  25 3d 26 37 46 46 46 46  46 46 46 2d 51 25 0d 01  |%=&7FFFFFFF-Q%..|
00000400  40 13 53 25 3d 26 38 30  30 30 30 30 30 30 2b 51  |@.S%=&80000000+Q|
00000410  25 0d 01 4a 26 6d 61 78  63 25 3d 30 3a 20 6e 6d  |%..J&maxc%=0: nm|
00000420  61 78 63 25 3d 30 3a 20  74 6f 74 63 25 3d 30 3a  |axc%=0: totc%=0:|
00000430  20 63 6e 74 25 3d 30 0d  01 54 04 0d 01 5e 0c 5a  | cnt%=0..T...^.Z|
00000440  62 61 73 65 25 3d 31 0d  01 68 12 5a 72 61 6e 67  |base%=1..h.Zrang|
00000450  65 25 3d 31 30 30 30 30  30 0d 01 72 04 0d 01 7c  |e%=100000..r...||
00000460  0d 5a 25 3d 5a 62 61 73  65 25 0d 01 86 05 f5 0d  |.Z%=Zbase%......|
00000470  01 90 1b 20 20 f2 63 68  65 63 6b 28 20 5a 25 2c  |...  .check( Z%,|
00000480  2d 51 25 2c 51 25 2c 20  31 29 0d 01 9a 1b 20 20  |-Q%,Q%, 1)....  |
00000490  f2 63 68 65 63 6b 28 2d  5a 25 2c 2d 51 25 2c 51  |.check(-Z%,-Q%,Q|
000004a0  25 2c 20 32 29 0d 01 a4  21 20 20 f2 63 68 65 63  |%, 2)...!  .chec|
000004b0  6b 28 20 5a 25 2c 52 25  2c 26 37 46 46 46 46 46  |k( Z%,R%,&7FFFFF|
000004c0  46 46 2c 20 30 29 0d 01  ae 21 20 20 f2 63 68 65  |FF, 0)...!  .che|
000004d0  63 6b 28 2d 5a 25 2c 52  25 2c 26 37 46 46 46 46  |ck(-Z%,R%,&7FFFF|
000004e0  46 46 46 2c 20 30 29 0d  01 b8 21 20 20 f2 63 68  |FFF, 0)...!  .ch|
000004f0  65 63 6b 28 20 5a 25 2c  26 38 30 30 30 30 30 30  |eck( Z%,&8000000|
00000500  30 2c 53 25 2c 20 30 29  0d 01 c2 21 20 20 f2 63  |0,S%, 0)...!  .c|
00000510  68 65 63 6b 28 2d 5a 25  2c 26 38 30 30 30 30 30  |heck(-Z%,&800000|
00000520  30 30 2c 53 25 2c 20 30  29 0d 01 cc 1f 20 20 f2  |00,S%, 0)....  .|
00000530  63 68 65 63 6b 28 20 5a  25 2c 2d 51 25 2c 51 25  |check( Z%,-Q%,Q%|
00000540  2c 20 31 30 30 2b 30 29  0d 01 d6 1f 20 20 f2 63  |, 100+0)....  .c|
00000550  68 65 63 6b 28 2d 5a 25  2c 2d 51 25 2c 51 25 2c  |heck(-Z%,-Q%,Q%,|
00000560  20 31 30 30 2d 31 29 0d  01 e0 0f 20 20 63 6e 74  | 100-1)....  cnt|
00000570  25 20 2b 3d 20 31 0d 01  ea 18 20 20 6c 25 20 3d  |% += 1....  l% =|
00000580  28 61 66 74 25 2d 66 6f  72 65 25 29 2f 34 0d 01  |(aft%-fore%)/4..|
00000590  f4 11 20 20 74 6f 74 63  25 20 2b 3d 20 6c 25 0d  |..  totc% += l%.|
000005a0  01 fe 12 20 20 e7 20 6c  25 3e 6d 61 78 63 25 20  |...  . l%>maxc% |
000005b0  8c 0d 02 08 12 20 20 20  20 6d 61 78 63 25 20 3d  |.....    maxc% =|
000005c0  20 6c 25 0d 02 12 12 20  20 20 20 6e 6d 61 78 63  | l%....    nmaxc|
000005d0  25 3d 20 5a 25 0d 02 1c  07 20 20 cd 0d 02 26 52  |%= Z%....  ...&R|
000005e0  20 20 f1 22 43 75 72 72  65 6e 74 20 6d 61 78 20  |  ."Current max |
000005f0  63 6f 64 65 20 6c 65 6e  67 74 68 20 22 3b 6d 61  |code length ";ma|
00000600  78 63 25 3b 22 20 69 6e  73 74 72 75 63 74 69 6f  |xc%;" instructio|
00000610  6e 73 20 66 6f 72 20 64  69 76 69 73 6f 72 20 22  |ns for divisor "|
00000620  3b a4 6e 73 74 72 28 6e  6d 61 78 63 25 29 0d 02  |;.nstr(nmaxc%)..|
00000630  30 3a 20 20 f1 22 41 76  65 72 61 67 65 20 63 6f  |0:  ."Average co|
00000640  64 65 20 6c 65 6e 67 74  68 20 22 3b 74 6f 74 63  |de length ";totc|
00000650  25 2f 63 6e 74 25 3b 22  20 69 6e 73 74 72 75 63  |%/cnt%;" instruc|
00000660  74 69 6f 6e 73 22 27 27  0d 02 3a 09 5a 25 2b 3d  |tions"''..:.Z%+=|
00000670  31 0d 02 44 17 fd 20 5a  25 3d 5a 62 61 73 65 25  |1..D.. Z%=Zbase%|
00000680  2b 5a 72 61 6e 67 65 25  0d 02 4e 13 85 20 31 2c  |+Zrange%..N.. 1,|
00000690  20 22 41 6c 6c 20 64 6f  6e 65 22 0d 02 58 04 0d  | "All done"..X..|
000006a0  02 62 05 e0 0d 02 6c 04  0d 02 76 27 dd f2 63 68  |.b....l...v'..ch|
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000006c0  4e 49 53 48 25 2c 20 72  65 70 6f 72 74 25 29 0d  |NISH%, report%).|
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