Salt/!ChrEd/RMEnsure

Home » Archimedes archive » Acorn User » AU 1994-05.adf » !StarInfo_StarInfo » Salt/!ChrEd/RMEnsure

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

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

Tape/disk:	Home » Archimedes archive » Acorn User » AU 1994-05.adf » !StarInfo_StarInfo
Filename:	Salt/!ChrEd/RMEnsure
Read OK:	✔
File size:	0487 bytes
Load address:	0000
Exec address:	0000

File contents

   10REM > RMEnsure
   20:
   30REM If module not active, attempts to initialise ROM copy
   40REM If module not present or too old, loads specified file as a module
   50REM If module is initialised and is too old, a suitable error is generated
   60:
   70END=&A000
   80syntax$="Syntax: */RMEnsure <moduletitle> <version number> <filename>"
   90DIM buf 8:$buf="12345678"
  100SYS "XOS_ReadVarVal","Wimp$State",buf,8
  110wimp%=$buf<>"commands"
  120IF wimp%:SYS "Wimp_Initialise",200,&4B534154,"RMEnsure" TO v%,t%
  130SYS "OS_GetEnv" TO c%
  140IF c% ELSE ERROR 220,syntax$
  150t$=FNread(c%)+FNread(c%)+FNread(c%)
  160module$=FNread(c%):IF module$="":ERROR 220,syntax$
  170version$=FNread(c%):IF version$="":ERROR 220,syntax$
  180file$=FNread(c%):IF file$="":ERROR 220,syntax$
  190SYS "OS_Byte",0,1 TO ,os%
  200rmensure$="RMEnsure "+module$+" "+version$
  210IF os%>5:SYS "XOS_CLI",rmensure$+" RMReInit "+module$ TO a%;f%
  220IF f% AND 1:IF !a%<>258:SYS "OS_GenerateError",a%
  230OSCLI rmensure$+" RMLoad "+file$
  240OSCLI rmensure$+" Error Version "+version$+" or later of "+module$+" is required"
  250IF wimp%:SYS "Wimp_CloseDown",t%,&4B534154
  260END
  270:
  280DEF FNread(RETURN c%)
  290t$=""
  300WHILE ?c%>32
  310 t$+=CHR$ ?c%
  320 c%+=1
  330ENDWHILE
  340WHILE ?c%=32
  350 c%+=1
  360ENDWHILE
  370=t$


� > RMEnsure
:
;� If module not active, attempts to initialise ROM copy
(H� If module not present or too old, loads specified file as a module
2L� If module is initialised and is too old, a suitable error is generated
<:
F�=&A000
PJsyntax$="Syntax: */RMEnsure <moduletitle> <version number> <filename>"
Z� buf 8:$buf="12345678"
d*ș "XOS_ReadVarVal","Wimp$State",buf,8
nwimp%=$buf<>"commands"
xA� wimp%:ș "Wimp_Initialise",200,&4B534154,"RMEnsure" � v%,t%
�ș "OS_GetEnv" � c%
�� c% � � 220,syntax$
�$t$=�read(c%)+�read(c%)+�read(c%)
�0module$=�read(c%):� module$="":� 220,syntax$
�2version$=�read(c%):� version$="":� 220,syntax$
�,file$=�read(c%):� file$="":� 220,syntax$
�ș "OS_Byte",0,1 � ,os%
�.rmensure$="RMEnsure "+module$+" "+version$
�?� os%>5:ș "XOS_CLI",rmensure$+" RMReInit "+module$ � a%;f%
�0� f% � 1:� !a%<>258:ș "OS_GenerateError",a%
� � rmensure$+" RMLoad "+file$
�Q� rmensure$+" Error Version "+version$+" or later of "+module$+" is required"
�,� wimp%:ș "Wimp_CloseDown",t%,&4B534154
�
:
� �read(� c%)
"	t$=""
,
ȕ ?c%>32
6 t$+=� ?c%
@
 c%+=1
J�
T
ȕ ?c%=32
^
 c%+=1
h�
r=t$
�

00000000  0d 00 0a 10 f4 20 3e 20  52 4d 45 6e 73 75 72 65  |..... > RMEnsure|
00000010  0d 00 14 05 3a 0d 00 1e  3b f4 20 49 66 20 6d 6f  |....:...;. If mo|
00000020  64 75 6c 65 20 6e 6f 74  20 61 63 74 69 76 65 2c  |dule not active,|
00000030  20 61 74 74 65 6d 70 74  73 20 74 6f 20 69 6e 69  | attempts to ini|
00000040  74 69 61 6c 69 73 65 20  52 4f 4d 20 63 6f 70 79  |tialise ROM copy|
00000050  0d 00 28 48 f4 20 49 66  20 6d 6f 64 75 6c 65 20  |..(H. If module |
00000060  6e 6f 74 20 70 72 65 73  65 6e 74 20 6f 72 20 74  |not present or t|
00000070  6f 6f 20 6f 6c 64 2c 20  6c 6f 61 64 73 20 73 70  |oo old, loads sp|
00000080  65 63 69 66 69 65 64 20  66 69 6c 65 20 61 73 20  |ecified file as |
00000090  61 20 6d 6f 64 75 6c 65  0d 00 32 4c f4 20 49 66  |a module..2L. If|
000000a0  20 6d 6f 64 75 6c 65 20  69 73 20 69 6e 69 74 69  | module is initi|
000000b0  61 6c 69 73 65 64 20 61  6e 64 20 69 73 20 74 6f  |alised and is to|
000000c0  6f 20 6f 6c 64 2c 20 61  20 73 75 69 74 61 62 6c  |o old, a suitabl|
000000d0  65 20 65 72 72 6f 72 20  69 73 20 67 65 6e 65 72  |e error is gener|
000000e0  61 74 65 64 0d 00 3c 05  3a 0d 00 46 0b e0 3d 26  |ated..<.:..F..=&|
000000f0  41 30 30 30 0d 00 50 4a  73 79 6e 74 61 78 24 3d  |A000..PJsyntax$=|
00000100  22 53 79 6e 74 61 78 3a  20 2a 2f 52 4d 45 6e 73  |"Syntax: */RMEns|
00000110  75 72 65 20 3c 6d 6f 64  75 6c 65 74 69 74 6c 65  |ure <moduletitle|
00000120  3e 20 3c 76 65 72 73 69  6f 6e 20 6e 75 6d 62 65  |> <version numbe|
00000130  72 3e 20 3c 66 69 6c 65  6e 61 6d 65 3e 22 0d 00  |r> <filename>"..|
00000140  5a 1b de 20 62 75 66 20  38 3a 24 62 75 66 3d 22  |Z.. buf 8:$buf="|
00000150  31 32 33 34 35 36 37 38  22 0d 00 64 2a c8 99 20  |12345678"..d*.. |
00000160  22 58 4f 53 5f 52 65 61  64 56 61 72 56 61 6c 22  |"XOS_ReadVarVal"|
00000170  2c 22 57 69 6d 70 24 53  74 61 74 65 22 2c 62 75  |,"Wimp$State",bu|
00000180  66 2c 38 0d 00 6e 1a 77  69 6d 70 25 3d 24 62 75  |f,8..n.wimp%=$bu|
00000190  66 3c 3e 22 63 6f 6d 6d  61 6e 64 73 22 0d 00 78  |f<>"commands"..x|
000001a0  41 e7 20 77 69 6d 70 25  3a c8 99 20 22 57 69 6d  |A. wimp%:.. "Wim|
000001b0  70 5f 49 6e 69 74 69 61  6c 69 73 65 22 2c 32 30  |p_Initialise",20|
000001c0  30 2c 26 34 42 35 33 34  31 35 34 2c 22 52 4d 45  |0,&4B534154,"RME|
000001d0  6e 73 75 72 65 22 20 b8  20 76 25 2c 74 25 0d 00  |nsure" . v%,t%..|
000001e0  82 17 c8 99 20 22 4f 53  5f 47 65 74 45 6e 76 22  |.... "OS_GetEnv"|
000001f0  20 b8 20 63 25 0d 00 8c  18 e7 20 63 25 20 8b 20  | . c%..... c% . |
00000200  85 20 32 32 30 2c 73 79  6e 74 61 78 24 0d 00 96  |. 220,syntax$...|
00000210  24 74 24 3d a4 72 65 61  64 28 63 25 29 2b a4 72  |$t$=.read(c%)+.r|
00000220  65 61 64 28 63 25 29 2b  a4 72 65 61 64 28 63 25  |ead(c%)+.read(c%|
00000230  29 0d 00 a0 30 6d 6f 64  75 6c 65 24 3d a4 72 65  |)...0module$=.re|
00000240  61 64 28 63 25 29 3a e7  20 6d 6f 64 75 6c 65 24  |ad(c%):. module$|
00000250  3d 22 22 3a 85 20 32 32  30 2c 73 79 6e 74 61 78  |="":. 220,syntax|
00000260  24 0d 00 aa 32 76 65 72  73 69 6f 6e 24 3d a4 72  |$...2version$=.r|
00000270  65 61 64 28 63 25 29 3a  e7 20 76 65 72 73 69 6f  |ead(c%):. versio|
00000280  6e 24 3d 22 22 3a 85 20  32 32 30 2c 73 79 6e 74  |n$="":. 220,synt|
00000290  61 78 24 0d 00 b4 2c 66  69 6c 65 24 3d a4 72 65  |ax$...,file$=.re|
000002a0  61 64 28 63 25 29 3a e7  20 66 69 6c 65 24 3d 22  |ad(c%):. file$="|
000002b0  22 3a 85 20 32 32 30 2c  73 79 6e 74 61 78 24 0d  |":. 220,syntax$.|
000002c0  00 be 1b c8 99 20 22 4f  53 5f 42 79 74 65 22 2c  |..... "OS_Byte",|
000002d0  30 2c 31 20 b8 20 2c 6f  73 25 0d 00 c8 2e 72 6d  |0,1 . ,os%....rm|
000002e0  65 6e 73 75 72 65 24 3d  22 52 4d 45 6e 73 75 72  |ensure$="RMEnsur|
000002f0  65 20 22 2b 6d 6f 64 75  6c 65 24 2b 22 20 22 2b  |e "+module$+" "+|
00000300  76 65 72 73 69 6f 6e 24  0d 00 d2 3f e7 20 6f 73  |version$...?. os|
00000310  25 3e 35 3a c8 99 20 22  58 4f 53 5f 43 4c 49 22  |%>5:.. "XOS_CLI"|
00000320  2c 72 6d 65 6e 73 75 72  65 24 2b 22 20 52 4d 52  |,rmensure$+" RMR|
00000330  65 49 6e 69 74 20 22 2b  6d 6f 64 75 6c 65 24 20  |eInit "+module$ |
00000340  b8 20 61 25 3b 66 25 0d  00 dc 30 e7 20 66 25 20  |. a%;f%...0. f% |
00000350  80 20 31 3a e7 20 21 61  25 3c 3e 32 35 38 3a c8  |. 1:. !a%<>258:.|
00000360  99 20 22 4f 53 5f 47 65  6e 65 72 61 74 65 45 72  |. "OS_GenerateEr|
00000370  72 6f 72 22 2c 61 25 0d  00 e6 20 ff 20 72 6d 65  |ror",a%... . rme|
00000380  6e 73 75 72 65 24 2b 22  20 52 4d 4c 6f 61 64 20  |nsure$+" RMLoad |
00000390  22 2b 66 69 6c 65 24 0d  00 f0 51 ff 20 72 6d 65  |"+file$...Q. rme|
000003a0  6e 73 75 72 65 24 2b 22  20 45 72 72 6f 72 20 56  |nsure$+" Error V|
000003b0  65 72 73 69 6f 6e 20 22  2b 76 65 72 73 69 6f 6e  |ersion "+version|
000003c0  24 2b 22 20 6f 72 20 6c  61 74 65 72 20 6f 66 20  |$+" or later of |
000003d0  22 2b 6d 6f 64 75 6c 65  24 2b 22 20 69 73 20 72  |"+module$+" is r|
000003e0  65 71 75 69 72 65 64 22  0d 00 fa 2c e7 20 77 69  |equired"...,. wi|
000003f0  6d 70 25 3a c8 99 20 22  57 69 6d 70 5f 43 6c 6f  |mp%:.. "Wimp_Clo|
00000400  73 65 44 6f 77 6e 22 2c  74 25 2c 26 34 42 35 33  |seDown",t%,&4B53|
00000410  34 31 35 34 0d 01 04 05  e0 0d 01 0e 05 3a 0d 01  |4154.........:..|
00000420  18 11 dd 20 a4 72 65 61  64 28 f8 20 63 25 29 0d  |... .read(. c%).|
00000430  01 22 09 74 24 3d 22 22  0d 01 2c 0d c8 95 20 3f  |.".t$=""..,... ?|
00000440  63 25 3e 33 32 0d 01 36  0e 20 74 24 2b 3d bd 20  |c%>32..6. t$+=. |
00000450  3f 63 25 0d 01 40 0a 20  63 25 2b 3d 31 0d 01 4a  |?c%..@. c%+=1..J|
00000460  05 ce 0d 01 54 0d c8 95  20 3f 63 25 3d 33 32 0d  |....T... ?c%=32.|
00000470  01 5e 0a 20 63 25 2b 3d  31 0d 01 68 05 ce 0d 01  |.^. c%+=1..h....|
00000480  72 07 3d 74 24 0d ff                              |r.=t$..|
00000487

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