Home » Archimedes archive » Acorn User » AU 1997-01 B.adf » Features » Arcade/!MakePop/MakePop

Arcade/!MakePop/MakePop

This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.

Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.

Tape/disk: Home » Archimedes archive » Acorn User » AU 1997-01 B.adf » Features
Filename: Arcade/!MakePop/MakePop
Read OK:
File size: 0F87 bytes
Load address: 0000
Exec address: 0000
File contents
   10REM >MakePop
   20REM 
   30REM Syntax: *MakePop <in file> <out file> [-nopreshift]
   40:
   50ON ERROR OSCLI"Shut":REPORT:PRINT" (";ERL;")":END
   60:
   70key$="basic,quit/s,file,in,out,nopreshift/s"
   80SYS "OS_GetEnv" TO cline%
   90REMSYS "OS_File",10,"$.cline",&FFD,,cline%,cline%+256
  100DIM out% 1024
  110SYS "OS_ReadArgs",key$,cline%,out%,1024
  120:
  130in$=FNz(out%!12):out$=FNz(out%!16)
  140IF out%!20=0 THEN nopreshift%=FALSE ELSE nopreshift%=TRUE
  150:
  160PROCassemble
  170DIM sprite_area% (HIMEM-END)-4096
  180DIM blk% 128,a%(3)
  190REMINPUT"Sprite file: <Hive$Dir>.^.Originals."in$
  200REMout$="<Hive$Dir>.Graphics."+in$:PRINT"Raw data going to ";out$
  210REMin$="<Hive$Dir>.^.Originals."+in$
  220SYS "OS_File",23,in$ TO ,,,,len%
  230REMDIM sprite_area% len%+1024
  240sprite_area%!0=len%+1024:sprite_area%!8=16
  250SYS "OS_SpriteOp",9+256,sprite_area%
  260SYS "OS_SpriteOp",10+256,sprite_area%,in$
  270SYS "OS_SpriteOp",8+256,sprite_area% TO ,,,,sprite%:sprite%+=sprite_area%
  280sprite$=FNz(sprite%+4)
  290SYS "OS_SpriteOp",54+256,sprite_area%,sprite$
  300image%=sprite%+sprite%!32
  310mask%=sprite%+sprite%!36
  320IF mask%=image% THEN PRINT"No mask found":use_colour%=TRUE:END ELSE use_colour%=FALSE
  330last%=3-(sprite%!28>>3)
  340columns%=(sprite%!16+1)*4-last%:rows%=sprite%!20+1
  350PRINT "Name: "sprite$'"Size: ";columns%;",";rows%;" (";len%;" bytes)"
  360IF sprite%!24<>0 THEN ERROR 0,"Left-hand wastage found"
  370o%=OPENOUT(out$)
  380blk%!0=columns%-1:blk%!4=rows%-1:SYS "OS_GBPB",2,o%,blk%,32
  390SYS "OS_Args",3,o%,PTR#o%+(rows%*16)
  400PTR#o%=EXT#o%
  410:
  420IF nopreshift% THEN align%=0 ELSE FOR align%=0 TO 3
  430PROCword_write(8+(align%*4),32+(4*align%*rows%))
  440addr%=0:blk%!0=0
  450PRINT"-- Calculating alignment ";align%
  460FOR y%=1 TO rows%
  470PROCword_write(32+(4*align%*rows%)+(y%-1)*4,PTR#o%):shift%=align%
  480nextrow%=addr%+columns%+last%
  490REPEAT
  500IF use_colour% THEN A%=image%+addr%:C%=0 ELSE A%=mask%+addr%:C%=255
  510B%=nextrow%-last%-addr%:consec%=USR(count%):REMPRINT~consec%
  520PROCword(consec%)
  530REMPRINT image%?addr%,mask%?addr%
  540REMIF y%=20 THEN PRINT ~consec%
  550IF (consec%>>24)=1 THEN
  560 REMPRINT shift%
  570 IF shift%>0 AND (NOT nopreshift%) THEN !blk%=0:SYS "OS_GBPB",2,o%,blk%,shift%
  580 SYS "OS_GBPB",2,o%,addr%+image%,consec% AND &FFFF
  590ENDIF
  600REMshift%=PTR#o% AND 3
  610shift%=(shift%+(consec% AND &FFFF)) AND 3
  620PROCalign
  630addr%+=consec% AND &FFFF
  640UNTIL addr%>=nextrow%-last%
  650PROCword(0)
  660addr%=nextrow%
  670NEXT
  680IF nopreshift%=FALSE THEN NEXT
  690SYS "OS_Args",2,o% TO ,,length%
  700PRINT'"Resultant file is ";length%;" bytes"
  710CLOSE#o%
  711REMSYS "Wimp_CommandWindow",-1
  720END
  730:
  740DEFPROCword_write(offset%,word%)
  750REMPRINT ~offset%,~word%
  760PROCmove_ptr(offset%)
  770PROCword(word%)
  780PROCrestore_ptr
  790ENDPROC
  800:
  810DEFPROCmove_ptr(offset%)
  820SYS "OS_Args",0,o% TO ,,old_extent%
  830SYS "OS_Args",1,o%,offset%
  840ENDPROC
  850:
  860DEFPROCrestore_ptr
  870SYS "OS_Args",1,o%,old_extent%
  880ENDPROC
  890:
  900DEFPROCword(w%)
  910!blk%=w%:SYS "OS_GBPB",2,o%,blk%,4
  920ENDPROC
  930:
  940DEFPROCalign
  950LOCAL a%
  960a%=PTR#o% AND 3
  970IF a%<>0 THEN blk%!124=0:SYS "OS_GBPB",2,o%,blk%+124,4-a%
  980ENDPROC
  990:
 1000DEFFNz(p%):s$="":WHILE ?p%>=32:s$+=CHR$(?p%):p%+=1:ENDWHILE:=s$
 1010:
 1020DEFPROCassemble
 1030DIM count% 256
 1040FOR pass%=8 TO 10 STEP 2
 1050P%=count%:L%=P%+256
 1060[OPT pass%
 1070;
 1080; Enter with        R0 > row
 1090;                   R1 = max. length
 1100;                   R2 = colour 0 indicator (255 if using mask)
 1110; Exits with        R0 = appropriate type word (1 or 2)
 1120;
 1130          MOV       R5,R2
 1140          LDRB      R2,[R0],#1
 1150          MOV       R3,#1
 1160          MOV       R4,R1
 1170.count_loop%
 1180          LDRB      R1,[R0],#1
 1190          CMP       R1,R2
 1200          BNE       finished_counting%
 1210          ADD       R3,R3,#1
 1220          CMP       R3,R4
 1230          BEQ       finished_counting%
 1240          B         count_loop%
 1250.finished_counting%
 1260          MOV       R0,R3
 1270          CMP       R5,#255
 1280          BEQ       use_mask%
 1290          CMP       R2,#0
 1300          ORREQ     R0,R0,#&02000000
 1310          ORRNE     R0,R0,#&01000000
 1320          MOV       PC,R14
 1330.use_mask%
 1340          CMP       R2,#255
 1350          ORREQ     R0,R0,#&01000000
 1360          ORRNE     R0,R0,#&02000000
 1370          MOV       PC,R14
 1380]:NEXT
 1390ENDPROC

� >MakePop
� 
9� Syntax: *MakePop <in file> <out file> [-nopreshift]
(:
2� � �"Shut":�:�" (";�;")":�
<:
F0key$="basic,quit/s,file,in,out,nopreshift/s"
Pș "OS_GetEnv" � cline%
Z7�SYS "OS_File",10,"$.cline",&FFD,,cline%,cline%+256
d� out% 1024
n*ș "OS_ReadArgs",key$,cline%,out%,1024
x:
�$in$=�z(out%!12):out$=�z(out%!16)
�/� out%!20=0 � nopreshift%=� � nopreshift%=�
�:
�
�assemble
�� sprite_area% (�-�)-4096
�� blk% 128,a%(3)
�3�INPUT"Sprite file: <Hive$Dir>.^.Originals."in$
�C�out$="<Hive$Dir>.Graphics."+in$:PRINT"Raw data going to ";out$
�&�in$="<Hive$Dir>.^.Originals."+in$
�"ș "OS_File",23,in$ � ,,,,len%
��DIM sprite_area% len%+1024
�.sprite_area%!0=len%+1024:sprite_area%!8=16
�'ș "OS_SpriteOp",9+256,sprite_area%
,ș "OS_SpriteOp",10+256,sprite_area%,in$
Kș "OS_SpriteOp",8+256,sprite_area% � ,,,,sprite%:sprite%+=sprite_area%
sprite$=�z(sprite%+4)
"0ș "OS_SpriteOp",54+256,sprite_area%,sprite$
,image%=sprite%+sprite%!32
6mask%=sprite%+sprite%!36
@E� mask%=image% � �"No mask found":use_colour%=�:� � use_colour%=�
Jlast%=3-(sprite%!28>>3)
T6columns%=(sprite%!16+1)*4-last%:rows%=sprite%!20+1
^E� "Name: "sprite$'"Size: ";columns%;",";rows%;" (";len%;" bytes)"
h3� sprite%!24<>0 � � 0,"Left-hand wastage found"
ro%=�(out$)
|>blk%!0=columns%-1:blk%!4=rows%-1:ș "OS_GBPB",2,o%,blk%,32
�%ș "OS_Args",3,o%,�#o%+(rows%*16)
�
�#o%=�#o%
�:
�-� nopreshift% � align%=0 � � align%=0 � 3
�1�word_write(8+(align%*4),32+(4*align%*rows%))
�addr%=0:blk%!0=0
�'�"-- Calculating alignment ";align%
�� y%=1 � rows%
�@�word_write(32+(4*align%*rows%)+(y%-1)*4,�#o%):shift%=align%
�!nextrow%=addr%+columns%+last%
��
�@� use_colour% � A%=image%+addr%:C%=0 � A%=mask%+addr%:C%=255
�<B%=nextrow%-last%-addr%:consec%=�(count%):�PRINT~consec%
�word(consec%)
#�PRINT image%?addr%,mask%?addr%
!�IF y%=20 THEN PRINT ~consec%
&� (consec%>>24)=1 �
0 �PRINT shift%
:I � shift%>0 � (� nopreshift%) � !blk%=0:ș "OS_GBPB",2,o%,blk%,shift%
D3 ș "OS_GBPB",2,o%,addr%+image%,consec% � &FFFF
N�
X�shift%=PTR#o% AND 3
b)shift%=(shift%+(consec% � &FFFF)) � 3
l
�align
vaddr%+=consec% � &FFFF
�� addr%>=nextrow%-last%
��word(0)
�addr%=nextrow%
��
�� nopreshift%=� � �
�!ș "OS_Args",2,o% � ,,length%
�+�'"Resultant file is ";length%;" bytes"
��#o%
� �SYS "Wimp_CommandWindow",-1
��
�:
���word_write(offset%,word%)
��PRINT ~offset%,~word%
��move_ptr(offset%)
�word(word%)
�restore_ptr
�
 :
*��move_ptr(offset%)
4%ș "OS_Args",0,o% � ,,old_extent%
>ș "OS_Args",1,o%,offset%
H�
R:
\��restore_ptr
f!ș "OS_Args",1,o%,old_extent%
p�
z:
���word(w%)
�%!blk%=w%:ș "OS_GBPB",2,o%,blk%,4
��
�:
���align
�� a%
�a%=�#o% � 3
�8� a%<>0 � blk%!124=0:ș "OS_GBPB",2,o%,blk%+124,4-a%
��
�:
�3ݤz(p%):s$="":ȕ ?p%>=32:s$+=�(?p%):p%+=1:�:=s$
�:
���assemble
� count% 256
� pass%=8 � 10 � 2
P%=count%:L%=P%+256
$[OPT pass%
.;
8 ; Enter with        R0 > row
B(;                   R1 = max. length
LC;                   R2 = colour 0 indicator (255 if using mask)
V;; Exits with        R0 = appropriate type word (1 or 2)
`;
j          MOV       R5,R2
t"          LDRB      R2,[R0],#1
~          MOV       R3,#1
�          MOV       R4,R1
�.count_loop%
�"          LDRB      R1,[R0],#1
�          CMP       R1,R2
�*          BNE       finished_counting%
�           ADD       R3,R3,#1
�          CMP       R3,R4
�*          BEQ       finished_counting%
�#          B         count_loop%
�.finished_counting%
�          MOV       R0,R3
�          CMP       R5,#255
!          BEQ       use_mask%

          CMP       R2,#0
'          �REQ     R0,R0,#&02000000
'          �RNE     R0,R0,#&01000000
(          MOV       PC,R14
2.use_mask%
<          CMP       R2,#255
F'          �REQ     R0,R0,#&01000000
P'          �RNE     R0,R0,#&02000000
Z          MOV       PC,R14
d]:�
n�
�
00000000  0d 00 0a 0e f4 20 3e 4d  61 6b 65 50 6f 70 0d 00  |..... >MakePop..|
00000010  14 06 f4 20 0d 00 1e 39  f4 20 53 79 6e 74 61 78  |... ...9. Syntax|
00000020  3a 20 2a 4d 61 6b 65 50  6f 70 20 3c 69 6e 20 66  |: *MakePop <in f|
00000030  69 6c 65 3e 20 3c 6f 75  74 20 66 69 6c 65 3e 20  |ile> <out file> |
00000040  5b 2d 6e 6f 70 72 65 73  68 69 66 74 5d 0d 00 28  |[-nopreshift]..(|
00000050  05 3a 0d 00 32 1f ee 20  85 20 ff 22 53 68 75 74  |.:..2.. . ."Shut|
00000060  22 3a f6 3a f1 22 20 28  22 3b 9e 3b 22 29 22 3a  |":.:." (";.;")":|
00000070  e0 0d 00 3c 05 3a 0d 00  46 30 6b 65 79 24 3d 22  |...<.:..F0key$="|
00000080  62 61 73 69 63 2c 71 75  69 74 2f 73 2c 66 69 6c  |basic,quit/s,fil|
00000090  65 2c 69 6e 2c 6f 75 74  2c 6e 6f 70 72 65 73 68  |e,in,out,nopresh|
000000a0  69 66 74 2f 73 22 0d 00  50 1b c8 99 20 22 4f 53  |ift/s"..P... "OS|
000000b0  5f 47 65 74 45 6e 76 22  20 b8 20 63 6c 69 6e 65  |_GetEnv" . cline|
000000c0  25 0d 00 5a 37 f4 53 59  53 20 22 4f 53 5f 46 69  |%..Z7.SYS "OS_Fi|
000000d0  6c 65 22 2c 31 30 2c 22  24 2e 63 6c 69 6e 65 22  |le",10,"$.cline"|
000000e0  2c 26 46 46 44 2c 2c 63  6c 69 6e 65 25 2c 63 6c  |,&FFD,,cline%,cl|
000000f0  69 6e 65 25 2b 32 35 36  0d 00 64 0f de 20 6f 75  |ine%+256..d.. ou|
00000100  74 25 20 31 30 32 34 0d  00 6e 2a c8 99 20 22 4f  |t% 1024..n*.. "O|
00000110  53 5f 52 65 61 64 41 72  67 73 22 2c 6b 65 79 24  |S_ReadArgs",key$|
00000120  2c 63 6c 69 6e 65 25 2c  6f 75 74 25 2c 31 30 32  |,cline%,out%,102|
00000130  34 0d 00 78 05 3a 0d 00  82 24 69 6e 24 3d a4 7a  |4..x.:...$in$=.z|
00000140  28 6f 75 74 25 21 31 32  29 3a 6f 75 74 24 3d a4  |(out%!12):out$=.|
00000150  7a 28 6f 75 74 25 21 31  36 29 0d 00 8c 2f e7 20  |z(out%!16).../. |
00000160  6f 75 74 25 21 32 30 3d  30 20 8c 20 6e 6f 70 72  |out%!20=0 . nopr|
00000170  65 73 68 69 66 74 25 3d  a3 20 8b 20 6e 6f 70 72  |eshift%=. . nopr|
00000180  65 73 68 69 66 74 25 3d  b9 0d 00 96 05 3a 0d 00  |eshift%=.....:..|
00000190  a0 0d f2 61 73 73 65 6d  62 6c 65 0d 00 aa 1d de  |...assemble.....|
000001a0  20 73 70 72 69 74 65 5f  61 72 65 61 25 20 28 93  | sprite_area% (.|
000001b0  2d e0 29 2d 34 30 39 36  0d 00 b4 14 de 20 62 6c  |-.)-4096..... bl|
000001c0  6b 25 20 31 32 38 2c 61  25 28 33 29 0d 00 be 33  |k% 128,a%(3)...3|
000001d0  f4 49 4e 50 55 54 22 53  70 72 69 74 65 20 66 69  |.INPUT"Sprite fi|
000001e0  6c 65 3a 20 3c 48 69 76  65 24 44 69 72 3e 2e 5e  |le: <Hive$Dir>.^|
000001f0  2e 4f 72 69 67 69 6e 61  6c 73 2e 22 69 6e 24 0d  |.Originals."in$.|
00000200  00 c8 43 f4 6f 75 74 24  3d 22 3c 48 69 76 65 24  |..C.out$="<Hive$|
00000210  44 69 72 3e 2e 47 72 61  70 68 69 63 73 2e 22 2b  |Dir>.Graphics."+|
00000220  69 6e 24 3a 50 52 49 4e  54 22 52 61 77 20 64 61  |in$:PRINT"Raw da|
00000230  74 61 20 67 6f 69 6e 67  20 74 6f 20 22 3b 6f 75  |ta going to ";ou|
00000240  74 24 0d 00 d2 26 f4 69  6e 24 3d 22 3c 48 69 76  |t$...&.in$="<Hiv|
00000250  65 24 44 69 72 3e 2e 5e  2e 4f 72 69 67 69 6e 61  |e$Dir>.^.Origina|
00000260  6c 73 2e 22 2b 69 6e 24  0d 00 dc 22 c8 99 20 22  |ls."+in$...".. "|
00000270  4f 53 5f 46 69 6c 65 22  2c 32 33 2c 69 6e 24 20  |OS_File",23,in$ |
00000280  b8 20 2c 2c 2c 2c 6c 65  6e 25 0d 00 e6 1f f4 44  |. ,,,,len%.....D|
00000290  49 4d 20 73 70 72 69 74  65 5f 61 72 65 61 25 20  |IM sprite_area% |
000002a0  6c 65 6e 25 2b 31 30 32  34 0d 00 f0 2e 73 70 72  |len%+1024....spr|
000002b0  69 74 65 5f 61 72 65 61  25 21 30 3d 6c 65 6e 25  |ite_area%!0=len%|
000002c0  2b 31 30 32 34 3a 73 70  72 69 74 65 5f 61 72 65  |+1024:sprite_are|
000002d0  61 25 21 38 3d 31 36 0d  00 fa 27 c8 99 20 22 4f  |a%!8=16...'.. "O|
000002e0  53 5f 53 70 72 69 74 65  4f 70 22 2c 39 2b 32 35  |S_SpriteOp",9+25|
000002f0  36 2c 73 70 72 69 74 65  5f 61 72 65 61 25 0d 01  |6,sprite_area%..|
00000300  04 2c c8 99 20 22 4f 53  5f 53 70 72 69 74 65 4f  |.,.. "OS_SpriteO|
00000310  70 22 2c 31 30 2b 32 35  36 2c 73 70 72 69 74 65  |p",10+256,sprite|
00000320  5f 61 72 65 61 25 2c 69  6e 24 0d 01 0e 4b c8 99  |_area%,in$...K..|
00000330  20 22 4f 53 5f 53 70 72  69 74 65 4f 70 22 2c 38  | "OS_SpriteOp",8|
00000340  2b 32 35 36 2c 73 70 72  69 74 65 5f 61 72 65 61  |+256,sprite_area|
00000350  25 20 b8 20 2c 2c 2c 2c  73 70 72 69 74 65 25 3a  |% . ,,,,sprite%:|
00000360  73 70 72 69 74 65 25 2b  3d 73 70 72 69 74 65 5f  |sprite%+=sprite_|
00000370  61 72 65 61 25 0d 01 18  19 73 70 72 69 74 65 24  |area%....sprite$|
00000380  3d a4 7a 28 73 70 72 69  74 65 25 2b 34 29 0d 01  |=.z(sprite%+4)..|
00000390  22 30 c8 99 20 22 4f 53  5f 53 70 72 69 74 65 4f  |"0.. "OS_SpriteO|
000003a0  70 22 2c 35 34 2b 32 35  36 2c 73 70 72 69 74 65  |p",54+256,sprite|
000003b0  5f 61 72 65 61 25 2c 73  70 72 69 74 65 24 0d 01  |_area%,sprite$..|
000003c0  2c 1d 69 6d 61 67 65 25  3d 73 70 72 69 74 65 25  |,.image%=sprite%|
000003d0  2b 73 70 72 69 74 65 25  21 33 32 0d 01 36 1c 6d  |+sprite%!32..6.m|
000003e0  61 73 6b 25 3d 73 70 72  69 74 65 25 2b 73 70 72  |ask%=sprite%+spr|
000003f0  69 74 65 25 21 33 36 0d  01 40 45 e7 20 6d 61 73  |ite%!36..@E. mas|
00000400  6b 25 3d 69 6d 61 67 65  25 20 8c 20 f1 22 4e 6f  |k%=image% . ."No|
00000410  20 6d 61 73 6b 20 66 6f  75 6e 64 22 3a 75 73 65  | mask found":use|
00000420  5f 63 6f 6c 6f 75 72 25  3d b9 3a e0 20 8b 20 75  |_colour%=.:. . u|
00000430  73 65 5f 63 6f 6c 6f 75  72 25 3d a3 0d 01 4a 1b  |se_colour%=...J.|
00000440  6c 61 73 74 25 3d 33 2d  28 73 70 72 69 74 65 25  |last%=3-(sprite%|
00000450  21 32 38 3e 3e 33 29 0d  01 54 36 63 6f 6c 75 6d  |!28>>3)..T6colum|
00000460  6e 73 25 3d 28 73 70 72  69 74 65 25 21 31 36 2b  |ns%=(sprite%!16+|
00000470  31 29 2a 34 2d 6c 61 73  74 25 3a 72 6f 77 73 25  |1)*4-last%:rows%|
00000480  3d 73 70 72 69 74 65 25  21 32 30 2b 31 0d 01 5e  |=sprite%!20+1..^|
00000490  45 f1 20 22 4e 61 6d 65  3a 20 22 73 70 72 69 74  |E. "Name: "sprit|
000004a0  65 24 27 22 53 69 7a 65  3a 20 22 3b 63 6f 6c 75  |e$'"Size: ";colu|
000004b0  6d 6e 73 25 3b 22 2c 22  3b 72 6f 77 73 25 3b 22  |mns%;",";rows%;"|
000004c0  20 28 22 3b 6c 65 6e 25  3b 22 20 62 79 74 65 73  | (";len%;" bytes|
000004d0  29 22 0d 01 68 33 e7 20  73 70 72 69 74 65 25 21  |)"..h3. sprite%!|
000004e0  32 34 3c 3e 30 20 8c 20  85 20 30 2c 22 4c 65 66  |24<>0 . . 0,"Lef|
000004f0  74 2d 68 61 6e 64 20 77  61 73 74 61 67 65 20 66  |t-hand wastage f|
00000500  6f 75 6e 64 22 0d 01 72  0e 6f 25 3d ae 28 6f 75  |ound"..r.o%=.(ou|
00000510  74 24 29 0d 01 7c 3e 62  6c 6b 25 21 30 3d 63 6f  |t$)..|>blk%!0=co|
00000520  6c 75 6d 6e 73 25 2d 31  3a 62 6c 6b 25 21 34 3d  |lumns%-1:blk%!4=|
00000530  72 6f 77 73 25 2d 31 3a  c8 99 20 22 4f 53 5f 47  |rows%-1:.. "OS_G|
00000540  42 50 42 22 2c 32 2c 6f  25 2c 62 6c 6b 25 2c 33  |BPB",2,o%,blk%,3|
00000550  32 0d 01 86 25 c8 99 20  22 4f 53 5f 41 72 67 73  |2...%.. "OS_Args|
00000560  22 2c 33 2c 6f 25 2c 8f  23 6f 25 2b 28 72 6f 77  |",3,o%,.#o%+(row|
00000570  73 25 2a 31 36 29 0d 01  90 0d cf 23 6f 25 3d a2  |s%*16).....#o%=.|
00000580  23 6f 25 0d 01 9a 05 3a  0d 01 a4 2d e7 20 6e 6f  |#o%....:...-. no|
00000590  70 72 65 73 68 69 66 74  25 20 8c 20 61 6c 69 67  |preshift% . alig|
000005a0  6e 25 3d 30 20 8b 20 e3  20 61 6c 69 67 6e 25 3d  |n%=0 . . align%=|
000005b0  30 20 b8 20 33 0d 01 ae  31 f2 77 6f 72 64 5f 77  |0 . 3...1.word_w|
000005c0  72 69 74 65 28 38 2b 28  61 6c 69 67 6e 25 2a 34  |rite(8+(align%*4|
000005d0  29 2c 33 32 2b 28 34 2a  61 6c 69 67 6e 25 2a 72  |),32+(4*align%*r|
000005e0  6f 77 73 25 29 29 0d 01  b8 14 61 64 64 72 25 3d  |ows%))....addr%=|
000005f0  30 3a 62 6c 6b 25 21 30  3d 30 0d 01 c2 27 f1 22  |0:blk%!0=0...'."|
00000600  2d 2d 20 43 61 6c 63 75  6c 61 74 69 6e 67 20 61  |-- Calculating a|
00000610  6c 69 67 6e 6d 65 6e 74  20 22 3b 61 6c 69 67 6e  |lignment ";align|
00000620  25 0d 01 cc 12 e3 20 79  25 3d 31 20 b8 20 72 6f  |%..... y%=1 . ro|
00000630  77 73 25 0d 01 d6 40 f2  77 6f 72 64 5f 77 72 69  |ws%...@.word_wri|
00000640  74 65 28 33 32 2b 28 34  2a 61 6c 69 67 6e 25 2a  |te(32+(4*align%*|
00000650  72 6f 77 73 25 29 2b 28  79 25 2d 31 29 2a 34 2c  |rows%)+(y%-1)*4,|
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00000740  61 73 6b 25 3f 61 64 64  72 25 0d 02 1c 21 f4 49  |ask%?addr%...!.I|
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00000770  20 28 63 6f 6e 73 65 63  25 3e 3e 32 34 29 3d 31  | (consec%>>24)=1|
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000007d0  25 2c 62 6c 6b 25 2c 73  68 69 66 74 25 0d 02 44  |%,blk%,shift%..D|
000007e0  33 20 c8 99 20 22 4f 53  5f 47 42 50 42 22 2c 32  |3 .. "OS_GBPB",2|
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00000950  1f dd f2 77 6f 72 64 5f  77 72 69 74 65 28 6f 66  |...word_write(of|
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000009b0  f2 72 65 73 74 6f 72 65  5f 70 74 72 0d 03 16 05  |.restore_ptr....|
000009c0  e1 0d 03 20 05 3a 0d 03  2a 17 dd f2 6d 6f 76 65  |... .:..*...move|
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000009e0  25 c8 99 20 22 4f 53 5f  41 72 67 73 22 2c 30 2c  |%.. "OS_Args",0,|
000009f0  6f 25 20 b8 20 2c 2c 6f  6c 64 5f 65 78 74 65 6e  |o% . ,,old_exten|
00000a00  74 25 0d 03 3e 1d c8 99  20 22 4f 53 5f 41 72 67  |t%..>... "OS_Arg|
00000a10  73 22 2c 31 2c 6f 25 2c  6f 66 66 73 65 74 25 0d  |s",1,o%,offset%.|
00000a20  03 48 05 e1 0d 03 52 05  3a 0d 03 5c 11 dd f2 72  |.H....R.:..\...r|
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00000a40  20 22 4f 53 5f 41 72 67  73 22 2c 31 2c 6f 25 2c  | "OS_Args",1,o%,|
00000a50  6f 6c 64 5f 65 78 74 65  6e 74 25 0d 03 70 05 e1  |old_extent%..p..|
00000a60  0d 03 7a 05 3a 0d 03 84  0e dd f2 77 6f 72 64 28  |..z.:......word(|
00000a70  77 25 29 0d 03 8e 25 21  62 6c 6b 25 3d 77 25 3a  |w%)...%!blk%=w%:|
00000a80  c8 99 20 22 4f 53 5f 47  42 50 42 22 2c 32 2c 6f  |.. "OS_GBPB",2,o|
00000a90  25 2c 62 6c 6b 25 2c 34  0d 03 98 05 e1 0d 03 a2  |%,blk%,4........|
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00000ac0  20 80 20 33 0d 03 ca 38  e7 20 61 25 3c 3e 30 20  | . 3...8. a%<>0 |
00000ad0  8c 20 62 6c 6b 25 21 31  32 34 3d 30 3a c8 99 20  |. blk%!124=0:.. |
00000ae0  22 4f 53 5f 47 42 50 42  22 2c 32 2c 6f 25 2c 62  |"OS_GBPB",2,o%,b|
00000af0  6c 6b 25 2b 31 32 34 2c  34 2d 61 25 0d 03 d4 05  |lk%+124,4-a%....|
00000b00  e1 0d 03 de 05 3a 0d 03  e8 33 dd a4 7a 28 70 25  |.....:...3..z(p%|
00000b10  29 3a 73 24 3d 22 22 3a  c8 95 20 3f 70 25 3e 3d  |):s$="":.. ?p%>=|
00000b20  33 32 3a 73 24 2b 3d bd  28 3f 70 25 29 3a 70 25  |32:s$+=.(?p%):p%|
00000b30  2b 3d 31 3a ce 3a 3d 73  24 0d 03 f2 05 3a 0d 03  |+=1:.:=s$....:..|
00000b40  fc 0e dd f2 61 73 73 65  6d 62 6c 65 0d 04 06 10  |....assemble....|
00000b50  de 20 63 6f 75 6e 74 25  20 32 35 36 0d 04 10 16  |. count% 256....|
00000b60  e3 20 70 61 73 73 25 3d  38 20 b8 20 31 30 20 88  |. pass%=8 . 10 .|
00000b70  20 32 0d 04 1a 17 50 25  3d 63 6f 75 6e 74 25 3a  | 2....P%=count%:|
00000b80  4c 25 3d 50 25 2b 32 35  36 0d 04 24 0e 5b 4f 50  |L%=P%+256..$.[OP|
00000b90  54 20 70 61 73 73 25 0d  04 2e 05 3b 0d 04 38 20  |T pass%....;..8 |
00000ba0  3b 20 45 6e 74 65 72 20  77 69 74 68 20 20 20 20  |; Enter with    |
00000bb0  20 20 20 20 52 30 20 3e  20 72 6f 77 0d 04 42 28  |    R0 > row..B(|
00000bc0  3b 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |;               |
00000bd0  20 20 20 20 52 31 20 3d  20 6d 61 78 2e 20 6c 65  |    R1 = max. le|
00000be0  6e 67 74 68 0d 04 4c 43  3b 20 20 20 20 20 20 20  |ngth..LC;       |
00000bf0  20 20 20 20 20 20 20 20  20 20 20 20 52 32 20 3d  |            R2 =|
00000c00  20 63 6f 6c 6f 75 72 20  30 20 69 6e 64 69 63 61  | colour 0 indica|
00000c10  74 6f 72 20 28 32 35 35  20 69 66 20 75 73 69 6e  |tor (255 if usin|
00000c20  67 20 6d 61 73 6b 29 0d  04 56 3b 3b 20 45 78 69  |g mask)..V;; Exi|
00000c30  74 73 20 77 69 74 68 20  20 20 20 20 20 20 20 52  |ts with        R|
00000c40  30 20 3d 20 61 70 70 72  6f 70 72 69 61 74 65 20  |0 = appropriate |
00000c50  74 79 70 65 20 77 6f 72  64 20 28 31 20 6f 72 20  |type word (1 or |
00000c60  32 29 0d 04 60 05 3b 0d  04 6a 1d 20 20 20 20 20  |2)..`.;..j.     |
00000c70  20 20 20 20 20 4d 4f 56  20 20 20 20 20 20 20 52  |     MOV       R|
00000c80  35 2c 52 32 0d 04 74 22  20 20 20 20 20 20 20 20  |5,R2..t"        |
00000c90  20 20 4c 44 52 42 20 20  20 20 20 20 52 32 2c 5b  |  LDRB      R2,[|
00000ca0  52 30 5d 2c 23 31 0d 04  7e 1d 20 20 20 20 20 20  |R0],#1..~.      |
00000cb0  20 20 20 20 4d 4f 56 20  20 20 20 20 20 20 52 33  |    MOV       R3|
00000cc0  2c 23 31 0d 04 88 1d 20  20 20 20 20 20 20 20 20  |,#1....         |
00000cd0  20 4d 4f 56 20 20 20 20  20 20 20 52 34 2c 52 31  | MOV       R4,R1|
00000ce0  0d 04 92 10 2e 63 6f 75  6e 74 5f 6c 6f 6f 70 25  |.....count_loop%|
00000cf0  0d 04 9c 22 20 20 20 20  20 20 20 20 20 20 4c 44  |..."          LD|
00000d00  52 42 20 20 20 20 20 20  52 31 2c 5b 52 30 5d 2c  |RB      R1,[R0],|
00000d10  23 31 0d 04 a6 1d 20 20  20 20 20 20 20 20 20 20  |#1....          |
00000d20  43 4d 50 20 20 20 20 20  20 20 52 31 2c 52 32 0d  |CMP       R1,R2.|
00000d30  04 b0 2a 20 20 20 20 20  20 20 20 20 20 42 4e 45  |..*          BNE|
00000d40  20 20 20 20 20 20 20 66  69 6e 69 73 68 65 64 5f  |       finished_|
00000d50  63 6f 75 6e 74 69 6e 67  25 0d 04 ba 20 20 20 20  |counting%...    |
00000d60  20 20 20 20 20 20 20 41  44 44 20 20 20 20 20 20  |       ADD      |
00000d70  20 52 33 2c 52 33 2c 23  31 0d 04 c4 1d 20 20 20  | R3,R3,#1....   |
00000d80  20 20 20 20 20 20 20 43  4d 50 20 20 20 20 20 20  |       CMP      |
00000d90  20 52 33 2c 52 34 0d 04  ce 2a 20 20 20 20 20 20  | R3,R4...*      |
00000da0  20 20 20 20 42 45 51 20  20 20 20 20 20 20 66 69  |    BEQ       fi|
00000db0  6e 69 73 68 65 64 5f 63  6f 75 6e 74 69 6e 67 25  |nished_counting%|
00000dc0  0d 04 d8 23 20 20 20 20  20 20 20 20 20 20 42 20  |...#          B |
00000dd0  20 20 20 20 20 20 20 20  63 6f 75 6e 74 5f 6c 6f  |        count_lo|
00000de0  6f 70 25 0d 04 e2 17 2e  66 69 6e 69 73 68 65 64  |op%.....finished|
00000df0  5f 63 6f 75 6e 74 69 6e  67 25 0d 04 ec 1d 20 20  |_counting%....  |
00000e00  20 20 20 20 20 20 20 20  4d 4f 56 20 20 20 20 20  |        MOV     |
00000e10  20 20 52 30 2c 52 33 0d  04 f6 1f 20 20 20 20 20  |  R0,R3....     |
00000e20  20 20 20 20 20 43 4d 50  20 20 20 20 20 20 20 52  |     CMP       R|
00000e30  35 2c 23 32 35 35 0d 05  00 21 20 20 20 20 20 20  |5,#255...!      |
00000e40  20 20 20 20 42 45 51 20  20 20 20 20 20 20 75 73  |    BEQ       us|
00000e50  65 5f 6d 61 73 6b 25 0d  05 0a 1d 20 20 20 20 20  |e_mask%....     |
00000e60  20 20 20 20 20 43 4d 50  20 20 20 20 20 20 20 52  |     CMP       R|
00000e70  32 2c 23 30 0d 05 14 27  20 20 20 20 20 20 20 20  |2,#0...'        |
00000e80  20 20 84 52 45 51 20 20  20 20 20 52 30 2c 52 30  |  .REQ     R0,R0|
00000e90  2c 23 26 30 32 30 30 30  30 30 30 0d 05 1e 27 20  |,#&02000000...' |
00000ea0  20 20 20 20 20 20 20 20  20 84 52 4e 45 20 20 20  |         .RNE   |
00000eb0  20 20 52 30 2c 52 30 2c  23 26 30 31 30 30 30 30  |  R0,R0,#&010000|
00000ec0  30 30 0d 05 28 1e 20 20  20 20 20 20 20 20 20 20  |00..(.          |
00000ed0  4d 4f 56 20 20 20 20 20  20 20 50 43 2c 52 31 34  |MOV       PC,R14|
00000ee0  0d 05 32 0e 2e 75 73 65  5f 6d 61 73 6b 25 0d 05  |..2..use_mask%..|
00000ef0  3c 1f 20 20 20 20 20 20  20 20 20 20 43 4d 50 20  |<.          CMP |
00000f00  20 20 20 20 20 20 52 32  2c 23 32 35 35 0d 05 46  |      R2,#255..F|
00000f10  27 20 20 20 20 20 20 20  20 20 20 84 52 45 51 20  |'          .REQ |
00000f20  20 20 20 20 52 30 2c 52  30 2c 23 26 30 31 30 30  |    R0,R0,#&0100|
00000f30  30 30 30 30 0d 05 50 27  20 20 20 20 20 20 20 20  |0000..P'        |
00000f40  20 20 84 52 4e 45 20 20  20 20 20 52 30 2c 52 30  |  .RNE     R0,R0|
00000f50  2c 23 26 30 32 30 30 30  30 30 30 0d 05 5a 1e 20  |,#&02000000..Z. |
00000f60  20 20 20 20 20 20 20 20  20 4d 4f 56 20 20 20 20  |         MOV    |
00000f70  20 20 20 50 43 2c 52 31  34 0d 05 64 07 5d 3a ed  |   PC,R14..d.]:.|
00000f80  0d 05 6e 05 e1 0d ff                              |..n....|
00000f87