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WOTBAUD
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 » CEEFAX disks » telesoftware1.adl |
| Filename: | WOTBAUD |
| Read OK: | ✔ |
| File size: | 16F7 bytes |
| Load address: | 1900 |
| Exec address: | 8023 |
File contents
10REM 'WotBaud' by Tony Richey and Peter Vince
20REM Demonstrates procedures to query and set BBC micro baud rates.
30REM (c) BBC tv December 1986
40
50ON ERROR GOTO1680
60DIM osblock 10
70
80MODE 7
90FOR I%=1 TO 2
100PRINTTAB(11,I%)CHR$&8D;CHR$&81;CHR$&9D;CHR$&83;"Query_Baud ";CHR$&9C
110NEXT
120VDU 28,0,24,39,4 : REM Set window to exclude above title.
130
140Y$=CHR$&83 : C$=CHR$&86
150PRINTTAB(2,4)Y$;"This program demonstrates the use of"
160PRINT'Y$;"three procedures that find which baud"
170PRINT'Y$;"rates the RS423 serial port of the BBC"
180PRINT'Y$;"micro is set to, and how to reset them"
190PRINT'Y$;"more readably than just *FX7 and *FX8."
200IF FNwait THEN VDU7:GOTO150
210
220PRINT'C$;" The first of these procedures is"
230PRINTC$;"""PROCquerybaud"". This calls Osbyte 242";
240PRINTC$;"to read the register in the serial ULA"
250PRINTC$;"which determines the baud rates."
260PRINT'C$;" The BASIC ""USR"" command is used to"
270PRINTC$;"call the Osbyte routine as it returns"
280PRINTC$;"the contents of the processor's"
290PRINTC$;"registers when the routine finishes."
300PRINT'C$;" The A, X, and Y registers are set up"
310PRINTC$;"prior to the call by setting the BASIC"
320PRINTC$;"variables A%, X%, and Y%. A% selects"
330PRINTC$;"which Osbyte is required, while X% and"
340PRINTC$;"Y% contain parameters that are passed"
350PRINTC$;"to the Osbyte."
360IF FNwait THEN 150
370
380PRINTY$;" In this case, the value in the ULA"
390PRINTY$;"register is ANDed with Y and Exclusive"
400PRINTY$;"ORed with X. As we only want to"
410PRINTY$;"inspect the contents, not change them,"
420PRINTY$;"Y must have all bits set (255), and X"
430PRINTY$;"have all bits clear (0)."
440PRINT'Y$;" The processor's registers on exit"
450PRINTY$;"are packed into a 4 byte integer"
460PRINTY$;"number, with the Status register in"
470PRINTY$;"the most significant byte, followed by"
480PRINTY$;"the Y, X, and finally A registers."
490PRINT'Y$;" The value in the ULA register is"
500PRINTY$;"returned in the X register, and thus"
510PRINTY$;"we need to mask the result from USR"
520PRINTY$;"with &0000FF00, and divide it by 256."
530IF FNwait THEN 220
540
550PRINT'C$;" Note that it has to be masked before"
560PRINTC$;"the division, because if the top bit"
570PRINTC$;"of the status register were set, the"
580PRINTC$;"number would be considered negative,"
590PRINTC$;"and give the wrong result after the"
600PRINTC$;"division (plus 1 actually)."
610PRINT'C$;" The value returned is passed on to"
620PRINTC$;"PROCprintbaud which decodes and prints"
630PRINTC$;"both the baud rate, and the arguments"
640PRINTC$;"for *FX7 or 8 which would select that"
650PRINTC$;"speed."
660PRINT'C$;" PROCprintbaud can easily be changed"
670PRINTC$;"(to a Function if required) to return"
680PRINTC$;"the values rather than printing them."
690IF FNwait THEN 380
700
710PRINT'Y$" FNbaud works in the reverse direct-"
720PRINTY$"ion, taking the required baud-rate"
730PRINTY$"(for example 1200) as an argument, and"
740PRINTY$"returning a string with the argument"
750PRINTY$"for *FX7 or *FX8."
760PRINT'Y$;" This can be printed, or appended to"
770PRINTY$;"the string ""*FX7,"" and sent to the"
780PRINTY$;"Operating System ""Command Line Inter-"
790PRINTY$;"preter""."
800PRINT'Y$;" With BASIC-2 or later, this would be"
810PRINTY$;"done with the OSCLI command, but for"
820PRINTY$;"BASIC-1 a ""PROCoscli"" is needed, and"
830PRINTY$;"so that is used here."
840IF FNwait THEN 550
850
860PRINT'C$;" This program now enters a loop in"
870PRINTC$;"which it repeatedly calls PROCprintbaud";
880PRINTC$;"to show the current settings of the"
890PRINTC$;"micro, and then asks for some new baud"
900PRINTC$;"rates to be entered."
910PRINT'C$;" These are input as the variables"
920PRINTC$;"""rxspeed"" and ""txspeed"" which are"
930PRINTC$;"sent to FNbaud, and then with the"
940PRINTC$;"""*FX7"" and ""*FX8"" strings to PROCoscli."
950PRINTC$;" The program then repeats the loop,"
960PRINTC$;"showing that the speeds have changed."
970PRINT'C$;" As this is an infinite loop, press"
980PRINT" Escape";C$;"to exit."
990
1000VDU 28,0,24,39,4
1010PRINTTAB(1,18)CHR$&82;"Press";CHR$&83;"RETURN";CHR$&82;"to start demonstration,"
1020PRINTTAB(9,19)CHR$&82;"or";CHR$&83;"TAB";CHR$&82;"to go back...";
1030VDU 23,1,1;0;0;0; :REM Cursor on
1040REPEAT response=GET :UNTIL response=9 OR response=13
1050CLS
1060IF response=9 THEN 710
1070
1080PRINTTAB(9,19)CHR$&82;"Press";CHR$&87;"Escape";CHR$&82;"to exit"
1090VDU 28,0,21,39,4
1100
1110REPEAT
1120PROCquerybaud
1130INPUT'''"Enter required Receive speed - "rxspeed
1140INPUT"Enter required Transmit speed - "txspeed
1150PROCoscli("FX7,"+FNbaud(rxspeed))
1160PROCoscli("FX8,"+FNbaud(txspeed))
1170UNTIL FALSE
1180
1190
1200DEFFNwait
1210VDU 26 :REM Restore default full-screen window.
1220PRINTTAB(6,22)CHR$&82;"Press";CHR$&83;"RETURN";CHR$&82;"to continue,"
1230PRINTTAB(9,23)CHR$&82;"or";CHR$&83;"TAB";CHR$&82;"to go back...";
1240VDU 23,1,1;0;0;0; :REM Cursor on
1250REPEAT response=GET :UNTIL response=9 OR response=13
1260VDU 23,1,0;0;0;0; :REM Cursor off
1270VDU 28,0,21,39,4 :CLS :REM Reset window, and clear.
1280IF response=9 THEN =TRUE ELSE =FALSE
1290
1300
1310DEFPROCquerybaud
1320REM Osbyte 242 (&F2) reads the copy of the Serial Processor ULA register
1330REM see pages 236 and 392 of the Advanced User Guide for the BBC micro.
1340PRINT'"This computer is now set up to -"'
1350A% = 242 : X% = 0 : Y% = 255
1360registercopy% = (USR&FFF4 AND &FF00) DIV&100
1370PROCprintbaud("Receive ","7",registercopy% DIV 8 AND 7)
1380PROCprintbaud("Transmit","8",registercopy% AND 7)
1390ENDPROC
1400
1410
1420DEFPROCprintbaud(direction$,fx$,B%)
1430C% = ( (B%AND1)*4 + (B%AND2) + (B%AND4) DIV4 ) EOR7
1440PRINT direction$;" at ";75*2^(C%-(C%>2));" BAUD. ( *FX";fx$;",";C%+1;" )"
1450REM This procedure could return the value, rather than printing it,
1460REM by adding here:- baudrate = 75 * 2^ (C% - (C%>2) )
1470ENDPROC
1480
1490
1500DEFFNbaud(speed)
1510LOCAL I%
1520IF SGN(speed)<>1 THEN = STR$(0) :REM Trap to prevent 'Log range' error.
1530I% = LN(speed/37.5)/LN2 + (speed>500)
1540IF I%<1 OR I%>8 THEN I% = 0
1550= STR$I%
1560
1570
1580DEFPROCoscli(command$)
1590LOCAL X%,Y%
1600$osblock=command$
1610X% = osblock MOD 256
1620Y% = osblock DIV 256
1630CALL &FFF7 : REM Operating System 'Command Line Interpreter'
1640ENDPROC
1650
1660
1670REM Error handling routine
1680VDU 26 :REM Reset default full-screen window.
1690PRINTTAB(0,22)SPC(119);TAB(0,22);
1700IF ERR=17 THEN PRINT'"Program aborted." ELSE REPORT:PRINT" at line ";ERL;CHR$7
1710VDU 23,1,1;0;0;0; :REM Restore cursor
/� 'WotBaud' by Tony Richey and Peter Vince
D� Demonstrates procedures to query and set BBC micro baud rates.
� (c) BBC tv December 1986
(
2
� � �tPF
<� osblock 10
F
P� 7
Z� I%=1 � 2
d3�11,I%)�&8D;�&81;�&9D;�&83;"Query_Baud ";�&9C
n�
x9� 28,0,24,39,4 : � Set window to exclude above title.
�
�Y$=�&83 : C$=�&86
�3�2,4)Y$;"This program demonstrates the use of"
�0�'Y$;"three procedures that find which baud"
�1�'Y$;"rates the RS423 serial port of the BBC"
�1�'Y$;"micro is set to, and how to reset them"
�1�'Y$;"more readably than just *FX7 and *FX8."
�� �wait � �7:�tV@
�
�-�'C$;" The first of these procedures is"
�4�C$;"""PROCquerybaud"". This calls Osbyte 242";
�0�C$;"to read the register in the serial ULA"
�*�C$;"which determines the baud rates."
1�'C$;" The BASIC ""USR"" command is used to"
/�C$;"call the Osbyte routine as it returns"
)�C$;"the contents of the processor's"
".�C$;"registers when the routine finishes."
,1�'C$;" The A, X, and Y registers are set up"
60�C$;"prior to the call by setting the BASIC"
@0�C$;"variables A%, X%, and Y%. A% selects"
J0�C$;"which Osbyte is required, while X% and"
T/�C$;"Y% contain parameters that are passed"
^�C$;"to the Osbyte."
h� �wait � �tV@
r
|.�Y$;" In this case, the value in the ULA"
�0�Y$;"register is ANDed with Y and Exclusive"
�*�Y$;"ORed with X. As we only want to"
�0�Y$;"inspect the contents, not change them,"
�/�Y$;"Y must have all bits set (255), and X"
�"�Y$;"have all bits clear (0)."
�.�'Y$;" The processor's registers on exit"
�*�Y$;"are packed into a 4 byte integer"
�-�Y$;"number, with the Status register in"
�0�Y$;"the most significant byte, followed by"
�,�Y$;"the Y, X, and finally A registers."
�-�'Y$;" The value in the ULA register is"
�.�Y$;"returned in the X register, and thus"
�-�Y$;"we need to mask the result from USR"
/�Y$;"with &0000FF00, and divide it by 256."
� �wait � �d\@
&1�'C$;" Note that it has to be masked before"
0/�C$;"the division, because if the top bit"
:/�C$;"of the status register were set, the"
D.�C$;"number would be considered negative,"
N-�C$;"and give the wrong result after the"
X%�C$;"division (plus 1 actually)."
b/�'C$;" The value returned is passed on to"
l0�C$;"PROCprintbaud which decodes and prints"
v0�C$;"both the baud rate, and the arguments"
�/�C$;"for *FX7 or 8 which would select that"
��C$;"speed."
�0�'C$;" PROCprintbaud can easily be changed"
�/�C$;"(to a Function if required) to return"
�/�C$;"the values rather than printing them."
�� �wait � �D|A
�
�/�'Y$" FNbaud works in the reverse direct-"
�,�Y$"ion, taking the required baud-rate"
�/�Y$"(for example 1200) as an argument, and"
�-�Y$"returning a string with the argument"
��Y$"for *FX7 or *FX8."
�0�'Y$;" This can be printed, or appended to"
.�Y$;"the string ""*FX7,"" and sent to the"
0�Y$;"Operating System ""Command Line Inter-"
�Y$;"preter""."
1�'Y$;" With BASIC-2 or later, this would be"
*.�Y$;"done with the OSCLI command, but for"
40�Y$;"BASIC-1 a ""PROCoscli"" is needed, and"
> �Y$;"so that is used here."
H� �wait � �TfB
R
\.�'C$;" This program now enters a loop in"
f2�C$;"which it repeatedly calls PROCprintbaud";
p-�C$;"to show the current settings of the"
z0�C$;"micro, and then asks for some new baud"
� �C$;"rates to be entered."
�-�'C$;" These are input as the variables"
�2�C$;"""rxspeed"" and ""txspeed"" which are"
�,�C$;"sent to FNbaud, and then with the"
�5�C$;"""*FX7"" and ""*FX8"" strings to PROCoscli."
�.�C$;" The program then repeats the loop,"
�/�C$;"showing that the speeds have changed."
�/�'C$;" As this is an infinite loop, press"
� �" Escape";C$;"to exit."
�
�� 28,0,24,39,4
�D�1,18)�&82;"Press";�&83;"RETURN";�&82;"to start demonstration,"
�5�9,19)�&82;"or";�&83;"TAB";�&82;"to go back...";
"� 23,1,1;0;0;0; :� Cursor on
,� response=� :� response=9 � response=13
�
$� response=9 � �dFB
.
84�9,19)�&82;"Press";�&87;"Escape";�&82;"to exit"
B� 28,0,21,39,4
L
V�
`�querybaud
j0�'''"Enter required Receive speed - "rxspeed
t.�"Enter required Transmit speed - "txspeed
~!�oscli("FX7,"+�baud(rxspeed))
�!�oscli("FX8,"+�baud(txspeed))
�� �
�
�
�
ݤwait
�/� 26 :� Restore default full-screen window.
�9�6,22)�&82;"Press";�&83;"RETURN";�&82;"to continue,"
�5�9,23)�&82;"or";�&83;"TAB";�&82;"to go back...";
�"� 23,1,1;0;0;0; :� Cursor on
�,� response=� :� response=9 � response=13
�#� 23,1,0;0;0;0; :� Cursor off
�4� 28,0,21,39,4 :� :� Reset window, and clear.
� response=9 � =� � =�
��querybaud
(J� Osbyte 242 (&F2) reads the copy of the Serial Processor ULA register
2I� see pages 236 and 392 of the Advanced User Guide for the BBC micro.
<)�'"This computer is now set up to -"'
F A% = 242 : X% = 0 : Y% = 255
P*registercopy% = (�&FFF4 � &FF00) �&100
Z4�printbaud("Receive ","7",registercopy% � 8 � 7)
d0�printbaud("Transmit","8",registercopy% � 7)
n�
x
�
�"��printbaud(direction$,fx$,B%)
�-C% = ( (B%�1)*4 + (B%�2) + (B%�4) �4 ) �7
�I� direction$;" at ";75*2^(C%-(C%>2));" BAUD. ( *FX";fx$;",";C%+1;" )"
�E� This procedure could return the value, rather than printing it,
�;� by adding here:- baudrate = 75 * 2^ (C% - (C%>2) )
��
�
�
�ݤbaud(speed)
�� I%
�@� �(speed)<>1 � = �(0) :� Trap to prevent 'Log range' error.
�'I% = �(speed/37.5)/�2 + (speed>500)
� I%<1 � I%>8 � I% = 0
= �I%
"
,��oscli(command$)
6 � X%,Y%
@$osblock=command$
JX% = osblock � 256
TY% = osblock � 256
^;� &FFF7 : � Operating System 'Command Line Interpreter'
h�
r
|
� � Error handling routine
�-� 26 :� Reset default full-screen window.
��0,22)�(119);�0,22);
�7� �=17 � �'"Program aborted." � �:�" at line ";�;�7
�'� 23,1,1;0;0;0; :� Restore cursor
� 00000000 0d 00 0a 2f f4 20 27 57 6f 74 42 61 75 64 27 20 |.../. 'WotBaud' |
00000010 20 62 79 20 54 6f 6e 79 20 52 69 63 68 65 79 20 | by Tony Richey |
00000020 61 6e 64 20 50 65 74 65 72 20 56 69 6e 63 65 0d |and Peter Vince.|
00000030 00 14 44 f4 20 44 65 6d 6f 6e 73 74 72 61 74 65 |..D. Demonstrate|
00000040 73 20 70 72 6f 63 65 64 75 72 65 73 20 74 6f 20 |s procedures to |
00000050 71 75 65 72 79 20 61 6e 64 20 73 65 74 20 42 42 |query and set BB|
00000060 43 20 6d 69 63 72 6f 20 62 61 75 64 20 72 61 74 |C micro baud rat|
00000070 65 73 2e 0d 00 1e 20 f4 20 28 63 29 20 20 42 42 |es.... . (c) BB|
00000080 43 20 74 76 20 20 44 65 63 65 6d 62 65 72 20 31 |C tv December 1|
00000090 39 38 36 0d 00 28 05 20 0d 00 32 0d ee 20 85 20 |986..(. ..2.. . |
000000a0 e5 8d 74 50 46 0d 00 3c 10 de 20 6f 73 62 6c 6f |..tPF..<.. osblo|
000000b0 63 6b 20 31 30 0d 00 46 05 20 0d 00 50 07 eb 20 |ck 10..F. ..P.. |
000000c0 37 0d 00 5a 0e e3 20 49 25 3d 31 20 b8 20 32 0d |7..Z.. I%=1 . 2.|
000000d0 00 64 33 f1 8a 31 31 2c 49 25 29 bd 26 38 44 3b |.d3..11,I%).&8D;|
000000e0 bd 26 38 31 3b bd 26 39 44 3b bd 26 38 33 3b 22 |.&81;.&9D;.&83;"|
000000f0 51 75 65 72 79 5f 42 61 75 64 20 20 22 3b bd 26 |Query_Baud ";.&|
00000100 39 43 0d 00 6e 05 ed 0d 00 78 39 ef 20 32 38 2c |9C..n....x9. 28,|
00000110 30 2c 32 34 2c 33 39 2c 34 20 3a 20 f4 20 53 65 |0,24,39,4 : . Se|
00000120 74 20 77 69 6e 64 6f 77 20 74 6f 20 65 78 63 6c |t window to excl|
00000130 75 64 65 20 61 62 6f 76 65 20 74 69 74 6c 65 2e |ude above title.|
00000140 0d 00 82 05 20 0d 00 8c 15 59 24 3d bd 26 38 33 |.... ....Y$=.&83|
00000150 20 3a 20 43 24 3d bd 26 38 36 0d 00 96 33 f1 8a | : C$=.&86...3..|
00000160 32 2c 34 29 59 24 3b 22 54 68 69 73 20 70 72 6f |2,4)Y$;"This pro|
00000170 67 72 61 6d 20 64 65 6d 6f 6e 73 74 72 61 74 65 |gram demonstrate|
00000180 73 20 74 68 65 20 75 73 65 20 6f 66 22 0d 00 a0 |s the use of"...|
00000190 30 f1 27 59 24 3b 22 74 68 72 65 65 20 70 72 6f |0.'Y$;"three pro|
000001a0 63 65 64 75 72 65 73 20 74 68 61 74 20 66 69 6e |cedures that fin|
000001b0 64 20 77 68 69 63 68 20 62 61 75 64 22 0d 00 aa |d which baud"...|
000001c0 31 f1 27 59 24 3b 22 72 61 74 65 73 20 74 68 65 |1.'Y$;"rates the|
000001d0 20 52 53 34 32 33 20 73 65 72 69 61 6c 20 70 6f | RS423 serial po|
000001e0 72 74 20 6f 66 20 74 68 65 20 42 42 43 22 0d 00 |rt of the BBC"..|
000001f0 b4 31 f1 27 59 24 3b 22 6d 69 63 72 6f 20 69 73 |.1.'Y$;"micro is|
00000200 20 73 65 74 20 74 6f 2c 20 61 6e 64 20 68 6f 77 | set to, and how|
00000210 20 74 6f 20 72 65 73 65 74 20 74 68 65 6d 22 0d | to reset them".|
00000220 00 be 31 f1 27 59 24 3b 22 6d 6f 72 65 20 72 65 |..1.'Y$;"more re|
00000230 61 64 61 62 6c 79 20 74 68 61 6e 20 6a 75 73 74 |adably than just|
00000240 20 2a 46 58 37 20 61 6e 64 20 2a 46 58 38 2e 22 | *FX7 and *FX8."|
00000250 0d 00 c8 16 e7 20 a4 77 61 69 74 20 8c 20 ef 37 |..... .wait . .7|
00000260 3a e5 8d 74 56 40 0d 00 d2 05 20 0d 00 dc 2d f1 |:..tV@.... ...-.|
00000270 27 43 24 3b 22 20 20 54 68 65 20 66 69 72 73 74 |'C$;" The first|
00000280 20 6f 66 20 74 68 65 73 65 20 70 72 6f 63 65 64 | of these proced|
00000290 75 72 65 73 20 69 73 22 0d 00 e6 34 f1 43 24 3b |ures is"...4.C$;|
000002a0 22 22 22 50 52 4f 43 71 75 65 72 79 62 61 75 64 |"""PROCquerybaud|
000002b0 22 22 2e 20 20 54 68 69 73 20 63 61 6c 6c 73 20 |"". This calls |
000002c0 4f 73 62 79 74 65 20 32 34 32 22 3b 0d 00 f0 30 |Osbyte 242";...0|
000002d0 f1 43 24 3b 22 74 6f 20 72 65 61 64 20 74 68 65 |.C$;"to read the|
000002e0 20 72 65 67 69 73 74 65 72 20 69 6e 20 74 68 65 | register in the|
000002f0 20 73 65 72 69 61 6c 20 55 4c 41 22 0d 00 fa 2a | serial ULA"...*|
00000300 f1 43 24 3b 22 77 68 69 63 68 20 64 65 74 65 72 |.C$;"which deter|
00000310 6d 69 6e 65 73 20 74 68 65 20 62 61 75 64 20 72 |mines the baud r|
00000320 61 74 65 73 2e 22 0d 01 04 31 f1 27 43 24 3b 22 |ates."...1.'C$;"|
00000330 20 20 54 68 65 20 42 41 53 49 43 20 22 22 55 53 | The BASIC ""US|
00000340 52 22 22 20 63 6f 6d 6d 61 6e 64 20 69 73 20 75 |R"" command is u|
00000350 73 65 64 20 74 6f 22 0d 01 0e 2f f1 43 24 3b 22 |sed to".../.C$;"|
00000360 63 61 6c 6c 20 74 68 65 20 4f 73 62 79 74 65 20 |call the Osbyte |
00000370 72 6f 75 74 69 6e 65 20 61 73 20 69 74 20 72 65 |routine as it re|
00000380 74 75 72 6e 73 22 0d 01 18 29 f1 43 24 3b 22 74 |turns"...).C$;"t|
00000390 68 65 20 63 6f 6e 74 65 6e 74 73 20 6f 66 20 74 |he contents of t|
000003a0 68 65 20 70 72 6f 63 65 73 73 6f 72 27 73 22 0d |he processor's".|
000003b0 01 22 2e f1 43 24 3b 22 72 65 67 69 73 74 65 72 |."..C$;"register|
000003c0 73 20 77 68 65 6e 20 74 68 65 20 72 6f 75 74 69 |s when the routi|
000003d0 6e 65 20 66 69 6e 69 73 68 65 73 2e 22 0d 01 2c |ne finishes."..,|
000003e0 31 f1 27 43 24 3b 22 20 20 54 68 65 20 41 2c 20 |1.'C$;" The A, |
000003f0 58 2c 20 61 6e 64 20 59 20 72 65 67 69 73 74 65 |X, and Y registe|
00000400 72 73 20 61 72 65 20 73 65 74 20 75 70 22 0d 01 |rs are set up"..|
00000410 36 30 f1 43 24 3b 22 70 72 69 6f 72 20 74 6f 20 |60.C$;"prior to |
00000420 74 68 65 20 63 61 6c 6c 20 62 79 20 73 65 74 74 |the call by sett|
00000430 69 6e 67 20 74 68 65 20 42 41 53 49 43 22 0d 01 |ing the BASIC"..|
00000440 40 30 f1 43 24 3b 22 76 61 72 69 61 62 6c 65 73 |@0.C$;"variables|
00000450 20 41 25 2c 20 58 25 2c 20 61 6e 64 20 59 25 2e | A%, X%, and Y%.|
00000460 20 20 20 41 25 20 73 65 6c 65 63 74 73 22 0d 01 | A% selects"..|
00000470 4a 30 f1 43 24 3b 22 77 68 69 63 68 20 4f 73 62 |J0.C$;"which Osb|
00000480 79 74 65 20 69 73 20 72 65 71 75 69 72 65 64 2c |yte is required,|
00000490 20 77 68 69 6c 65 20 58 25 20 61 6e 64 22 0d 01 | while X% and"..|
000004a0 54 2f f1 43 24 3b 22 59 25 20 63 6f 6e 74 61 69 |T/.C$;"Y% contai|
000004b0 6e 20 70 61 72 61 6d 65 74 65 72 73 20 74 68 61 |n parameters tha|
000004c0 74 20 61 72 65 20 70 61 73 73 65 64 22 0d 01 5e |t are passed"..^|
000004d0 18 f1 43 24 3b 22 74 6f 20 74 68 65 20 4f 73 62 |..C$;"to the Osb|
000004e0 79 74 65 2e 22 0d 01 68 12 e7 20 a4 77 61 69 74 |yte."..h.. .wait|
000004f0 20 8c 20 8d 74 56 40 0d 01 72 05 20 0d 01 7c 2e | . .tV@..r. ..|.|
00000500 f1 59 24 3b 22 20 20 49 6e 20 74 68 69 73 20 63 |.Y$;" In this c|
00000510 61 73 65 2c 20 74 68 65 20 76 61 6c 75 65 20 69 |ase, the value i|
00000520 6e 20 74 68 65 20 55 4c 41 22 0d 01 86 30 f1 59 |n the ULA"...0.Y|
00000530 24 3b 22 72 65 67 69 73 74 65 72 20 69 73 20 41 |$;"register is A|
00000540 4e 44 65 64 20 77 69 74 68 20 59 20 61 6e 64 20 |NDed with Y and |
00000550 45 78 63 6c 75 73 69 76 65 22 0d 01 90 2a f1 59 |Exclusive"...*.Y|
00000560 24 3b 22 4f 52 65 64 20 77 69 74 68 20 58 2e 20 |$;"ORed with X. |
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000014b0 64 72 61 74 65 20 3d 20 37 35 20 2a 20 32 5e 20 |drate = 75 * 2^ |
000014c0 28 43 25 20 2d 20 28 43 25 3e 32 29 20 29 0d 05 |(C% - (C%>2) )..|
000014d0 be 05 e1 0d 05 c8 05 20 0d 05 d2 05 20 0d 05 dc |....... .... ...|
000014e0 11 dd a4 62 61 75 64 28 73 70 65 65 64 29 0d 05 |...baud(speed)..|
000014f0 e6 08 ea 20 49 25 0d 05 f0 40 e7 20 b4 28 73 70 |... I%...@. .(sp|
00001500 65 65 64 29 3c 3e 31 20 8c 20 3d 20 c3 28 30 29 |eed)<>1 . = .(0)|
00001510 20 3a f4 20 54 72 61 70 20 74 6f 20 70 72 65 76 | :. Trap to prev|
00001520 65 6e 74 20 27 4c 6f 67 20 72 61 6e 67 65 27 20 |ent 'Log range' |
00001530 65 72 72 6f 72 2e 0d 05 fa 27 49 25 20 3d 20 aa |error....'I% = .|
00001540 28 73 70 65 65 64 2f 33 37 2e 35 29 2f aa 32 20 |(speed/37.5)/.2 |
00001550 2b 20 28 73 70 65 65 64 3e 35 30 30 29 0d 06 04 |+ (speed>500)...|
00001560 1a e7 20 49 25 3c 31 20 84 20 49 25 3e 38 20 8c |.. I%<1 . I%>8 .|
00001570 20 49 25 20 3d 20 30 0d 06 0e 09 3d 20 c3 49 25 | I% = 0....= .I%|
00001580 0d 06 18 05 20 0d 06 22 05 20 0d 06 2c 15 dd f2 |.... ..". ..,...|
00001590 6f 73 63 6c 69 28 63 6f 6d 6d 61 6e 64 24 29 0d |oscli(command$).|
000015a0 06 36 0b ea 20 58 25 2c 59 25 0d 06 40 15 24 6f |.6.. X%,Y%..@.$o|
000015b0 73 62 6c 6f 63 6b 3d 63 6f 6d 6d 61 6e 64 24 0d |sblock=command$.|
000015c0 06 4a 16 58 25 20 3d 20 6f 73 62 6c 6f 63 6b 20 |.J.X% = osblock |
000015d0 83 20 32 35 36 0d 06 54 16 59 25 20 3d 20 6f 73 |. 256..T.Y% = os|
000015e0 62 6c 6f 63 6b 20 81 20 32 35 36 0d 06 5e 3b d6 |block . 256..^;.|
000015f0 20 26 46 46 46 37 20 3a 20 f4 20 4f 70 65 72 61 | &FFF7 : . Opera|
00001600 74 69 6e 67 20 53 79 73 74 65 6d 20 27 43 6f 6d |ting System 'Com|
00001610 6d 61 6e 64 20 4c 69 6e 65 20 49 6e 74 65 72 70 |mand Line Interp|
00001620 72 65 74 65 72 27 0d 06 68 05 e1 0d 06 72 05 20 |reter'..h....r. |
00001630 0d 06 7c 05 20 0d 06 86 1c f4 20 45 72 72 6f 72 |..|. ..... Error|
00001640 20 68 61 6e 64 6c 69 6e 67 20 72 6f 75 74 69 6e | handling routin|
00001650 65 0d 06 90 2d ef 20 32 36 20 3a f4 20 52 65 73 |e...-. 26 :. Res|
00001660 65 74 20 64 65 66 61 75 6c 74 20 66 75 6c 6c 2d |et default full-|
00001670 73 63 72 65 65 6e 20 77 69 6e 64 6f 77 2e 0d 06 |screen window...|
00001680 9a 19 f1 8a 30 2c 32 32 29 89 28 31 31 39 29 3b |....0,22).(119);|
00001690 8a 30 2c 32 32 29 3b 0d 06 a4 37 e7 20 9f 3d 31 |.0,22);...7. .=1|
000016a0 37 20 8c 20 f1 27 22 50 72 6f 67 72 61 6d 20 61 |7 . .'"Program a|
000016b0 62 6f 72 74 65 64 2e 22 20 8b 20 f6 3a f1 22 20 |borted." . .:." |
000016c0 61 74 20 6c 69 6e 65 20 22 3b 9e 3b bd 37 0d 06 |at line ";.;.7..|
000016d0 ae 27 ef 20 32 33 2c 31 2c 31 3b 30 3b 30 3b 30 |.'. 23,1,1;0;0;0|
000016e0 3b 20 20 20 3a f4 20 52 65 73 74 6f 72 65 20 63 |; :. Restore c|
000016f0 75 72 73 6f 72 0d ff |ursor..|
000016f7 
WOTBAUD.m0
WOTBAUD.m1
WOTBAUD.m2
WOTBAUD.m4
WOTBAUD.m5
.