Home » Archimedes archive » Acorn User » AU 1996-03 B.adf » Regulars » StarInfo/Fletcher/!TaskKill/PatchBas
StarInfo/Fletcher/!TaskKill/PatchBas
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 1996-03 B.adf » Regulars |
| Filename: | StarInfo/Fletcher/!TaskKill/PatchBas |
| Read OK: | ✔ |
| File size: | 2EAB bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
10REM > Patch for memory compilation
20REM Created by JFPatch LEN Justin Fletcher, 05 Sep 1995
30REM Intermediate code file created 23 Sep 1995
40ON ERROR PROCError:END
50PROCpatch_loadfile
60:
70REM **** User pre-assembly ****
80DIM message_buffer% 256
90*| Set Risc OS Version number
100*Set RO$Version 311
110*RmEnsure UtilityModule 3.11 Set RO$Version 300
120*RmEnsure UtilityModule 3.00 Set RO$Version 200
130riscos$=FNsystemvar("RO$Version")
140REM These numbers count from top left of keyboard to bottom right
150REM ie Esc = 0, f1=1, f2=2, f3=3, .. f12=12, Print=13, ScrLock=14
160REM Break =14, ~=15, 1=16, 2=17,
170REM TAB = 38, LCtrl = 58, LShift= 75, Caps= 92
180REM
190k1=&60:REM Right Alt key
200IF riscos$="311" THENk2=&F :k2$="Break"
210IF riscos$="300" THENk2=&E :k2$="Scroll-Lock"
220k3=0 :REM Escape key
230k4=36 :REM Keypad *
240 PRINT "Do you want to assemble the wimp command prompt window ? (y/n) ";
250 REPEAT:SYS "OS_Confirm" TO g:g$=CHR$g:UNTILINSTR("yn",g$)>0
260 PRINTg$
270 cond_enablewimp=INSTR("yY",g$)>0
280REM # COND SET enablewimp FALSE
290:
300REM **** Main assembly routine ****
310sp=13:link=14:pc=15
320vbit=1<<28:cbit=1<<29:zbit=1<<30:nbit=1<<31
330P%=&0:O%=MC%
340FOR pass%=4 TO 6 STEP2
350REM **** Start of main code ****
360PROCpatch_setpc(0)
370[OPT pass%
380 ; **** Add module header ****
390 EQUD 0 ; Start offset
400 EQUD initcode% ; Initialisation offset
410 EQUD finalcode% ; Finalisation offset
420 EQUD srvcode% ; Service request offset
430 EQUD module_title ; Title string offset
440 EQUD module_help ; Help string offset
450 EQUD module_commands ; Help and command keyword table offset
460:
470.module_title
480 EQUS "TaskKiller"+CHR$0
490 ALIGN
500:
510.module_help
520 EQUS "TaskKiller"+CHR$9+"1.06 ("+MID$(TIME$,5,11)+") � Justin Fletcher"+CHR$0
530 ALIGN
540:
550; ***** Module commands table
560.module_commands
570 EQUS "TaskKiller" ; Command name
580 EQUB 0:ALIGN
590 EQUD 0 ; Code to call
600 EQUD &0 ; Flags
610 EQUD 0 ; Syntax pointer
620 EQUD help_taskkiller ; Help pointer
630 EQUB 0
640 ALIGN
650:
660; ***** Help and Syntax messages
670.help_taskkiller
680 EQUS "The Task killer module will attempt to kill a task which has crashed. "
690 EQUS "When a task stops responding, use these keys, in order of priority :"+CHR$13
700 EQUS "�1. Use Right-Alt and Escape to exit using error handler"+CHR$13
710 EQUS "�2. Use Right-Alt and "+k2$+" to kill the task with a machette!"+CHR$13+CHR$13
720 EQUS "�WARNING : Do NOT use these in a correctly functioning desktop"+CHR$13+CHR$13
730 EQUS "The Task killer module can also be used to initiate a command prompt "
740 EQUS "by Right-Alt-Keypad *. "
750 EQUB 0
760 ALIGN
770:
780 ; **** End of module header ****
790:
800.initcode%
810 STMFD (sp)!,{link}
820 BL doclaim
830 LDMFD (sp)!,{pc}
840:
850.srvcode%
860 MOV pc,link ; ie return immediately
870; TEQ R1,#&27 ; reset module
880; MOVNE pc,link
890:
900.doclaim
910 STMFD (sp)!,{R0-R2,link}
920 MOV link,#0
930 STR link,doingnow
940 STR link,key1pressed
950 STR link,key2pressed
960 STR link,key3pressed
970 STR link,key4pressed
980 MOV R0,#&10 ; vector &10 ?
990 ADR R1,newvector% ; to be processed at newvector%
1000 BL claimvector%
1010 MOV R0,#&0E
1020 MOV R1,#&0B
1030 SWI "XOS_Byte" ; enable keypress vector
1040 MOV R0,#0
1050 STRB R0,[R12,#8]
1060 LDMFD (sp)!,{R0-R2,pc}
1070:
1080.finalcode%
1090 STMFD (sp)!,{R0-R2,link}
1100 MOV R0,#&0D
1110 MOV R1,#&0B
1120 SWI "XOS_Byte" ; disable keypress vector
1130 LDR R12,[R12,#0]
1140 MOV R0,#&10
1150 ADR R1,newvector%
1160 BL releasevector%
1170 LDMFD (sp)!,{R0-R2,pc}
1180:
1190.claimvector%
1200 STMFD (sp)!,{R2,link}
1210 BL releasevector%
1220 MOV R2,#0
1230 SWI "XOS_Claim"
1240 LDMFD (sp)!,{R2,pc}^
1250:
1260.releasevector%
1270 STMFD (sp)!,{R0-R2,link}
1280.retryrelease%
1290 LDMFD sp,{R0,R1}
1300 MOV R2,#0
1310 SWI "XOS_Release"
1320 BVC retryrelease%
1330 CMP pc,#0
1340 LDMFD (sp)!,{R0-R2,pc}
1350:
1360.newvector%
1370 CMP R0,#&0B ; is this a keypress ?
1380 MOVNE pc,link ; if not exit
1390 STMFD (sp)!,{R0-r2,R4,R5,link} ; stack regs
1400 MOV r4,#0
1410 CMP R2,#k1 ; code for key 1 (controlling key)
1420 STREQ R1,key1pressed
1430 MOVEQ r4,#1
1440 BEQ whichkeys%
1450 CMP R2,#k2 ; code for key 2 (Kill task)
1460 STREQ R1,key2pressed
1470 MOVEQ r4,#1
1480 CMP R2,#k3 ; code for key 3 (Error)
1490 STREQ R1,key3pressed
1500 MOVEQ r4,#1
1510 CMP R2,#k4 ; code for key 4 (OSCLI)
1520 STREQ R1,key4pressed
1530 MOVEQ r4,#1
1540 CMP r4,#1
1550 LDMNEFD (sp)!,{R0-R2,R4,R5,pc}
1560:
1570.whichkeys%
1580 LDR R2,key1pressed
1590 TEQ R2,#0
1600 LDMEQFD (sp)!,{R0-R2,R4,R5,pc}
1610 LDR R2,key2pressed
1620 TEQ R2,#0
1630 BEQ testforkey3
1640 ADR r1,doexitcode% ; r1=address to jump to
1650.setupjump
1660 MOV R5,pc
1670 BIC R4,R5,#1
1680 TEQP R4,#1
1690 MOV R0,R0
1700 STMFD (sp)!,{link}
1710 LDRB R0,doingnow
1720 TEQ R0,#0
1730 BNE alreadydoing
1740 MOV r0,r1 ; r0=address
1750 MOV R1,#0
1760 SWI "XOS_AddCallBack"
1770 MOVVC R0,#1
1780 STRVCB R0,doingnow ; if ok then set doing
1790.alreadydoing
1800 LDMFD (sp)!,{link}
1810 TEQP R5,#0
1820 MOV R0,R0
1830 LDMFD (sp)!,{R0-R2,R4,R5,pc}
1840.testforkey3 ; check that key 3 is pressed (Error)
1850 LDR R2,key3pressed
1860 TEQ R2,#0
1870 BEQ testforkey4
1880 ADR r1,doerrorcode%
1890 B setupjump
1900:
1910.testforkey4 ; check that key 4 is pressed (OSCLI)
1920 LDR R2,key4pressed
1930 TEQ R2,#0
1940 LDMEQFD (sp)!,{R0-R2,R4,R5,pc}
1950 ADR r1,doosclicode%
1960 B setupjump
1970:
1980.doexitcode%
1990 STMFD (sp)!,{link}
2000 BL delinkapplication
2010 BL restorebreak
2020 MOV R0,#0
2030 STRB R0,doingnow
2040; code goes here -
2050; SWI "OS_EnterOS"
2060 SWI "OS_Exit"
2070; - to here
2080 LDMFD (sp)!,{pc}
2090:
2100.doerrorcode%
2110 STMFD (sp)!,{link}
2120 BL delinkapplication
2130 BL restorebreak
2140 MOV R0,#0
2150 STRB R0,doingnow
2160; code goes here -
2170 FNerror("Program terminated")
2180; - to here
2190 LDMFD (sp)!,{pc}
2200:
2210.delinkapplication
2220 STMFD (sp)!,{r0-r12,link}
2230 FNset_as_svc(pass%)
2240.dla_loop
2250 ADR r0,buffer ; buffer for previously linked vectors ?
2260 MOV r1,#32 ; length of buffer
2270 SWI "XOS_DelinkApplication" ; remove any vectors used by application
2280 CMP r1,#0 ; was the buffer full ?
2290 BEQ dla_loop ; if it was, then go around again
2300 FNrestore_mode(pass%)
2310 LDMFD (sp)!,{r0-r12,pc}^
2320.buffer
2330 FNreserve(32)
2340 ; space for vector storage
2350:
2360:
2370.doosclicode%
2380 STMFD (sp)!,{r0-r12,link}
2390 FNset_as_svc(pass%)
2400 BL restorebreak
2410; code goes here -
2420 ADR r0,wimpvar ; address of wimp variable
2430 ADR r1,oscliline ; address of buffer
2440 MOV r2,#255 ; buffer length
2450 MOV r3,#0 ; ?
2460 MOV r4,#3 ; ?
2470 SWI "XOS_ReadVarVal" ; read variable
2480 BVS exitoscli ; exit if error
2490 LDR r0,[r1,#0] ; get first word
2500 LDR r2,commandstring ; read what it should be for comm
2510 CMP r0,r2 ; compare
2520 LDRNE r0,[r1,#0] ; get second word
2530 LDRNE r2,commandstring+4 ; read what it should be for ands
2540 CMPNE r0,r2 ; compare
2550 BNE wimprunning
2560.oscliloop
2570 SWI &100+ASC("*")
2580 ADR r0,oscliline ; addr of buffer
2590 MOV r1,#&100 ; length of buffer
2600 MOV r2,#&20 ; min ascii accepted
2610 MOV r3,#&FF ; max ascii accepted
2620 SWI "XOS_ReadLine"
2630 BVS osclierror ; if error then process
2640 CMP r1,#0 ; if no characters typed then exit
2650 BEQ exitoscli
2660 SWI "XOS_CLI" ; do command
2670 BVC oscliloop ; if no error then loop around
2680.osclierror
2690 ADD r0,r0,#4 ; skip error code byte
2700 SWI "OS_Write0" ; write to screen
2710 SWI "OS_NewLine"
2720 B oscliloop
2730.exitoscli
2740 MOV R0,#0
2750 STRB R0,doingnow
2760; - to here
2770 FNrestore_mode(pass%)
2780 LDMFD (sp)!,{r0-r12,pc}^
2790:
2800.wimprunning
2810]
2820IF cond_enablewimp THEN
2830[ OPT pass%
2840 ADR r0,wimpcommand
2850 SWI "Wimp_StartTask"
2860]
2870ENDIF
2880[ OPT pass%
2890 B exitoscli
2900:
2910.restorebreak
2920 STMFD (sp)!,{r8-r9,link}
2930 FNset_as_svc(pass%)
2940 MOV r0,#200
2950 MOV r1,#0
2960 SWI "OS_Byte" ; Clear Break/Escape disabled
2970 MOV r0,#229
2980 MOV r1,#0
2990 SWI "OS_Byte" ; Enable Escape
3000 FNrestore_mode(pass%)
3010 LDMFD (sp)!,{r8-r9,pc}
3020:
3030; variables
3040.doingnow :EQUD 0
3050.key1pressed:EQUD 0
3060.key2pressed:EQUD 0
3070.key3pressed:EQUD 0
3080.key4pressed:EQUD 0
3090.oscliline
3100 FNreserve(256)
3110.wimpcommand:EQUS "GOS"+CHR$0:ALIGN
3120.wimpvar :EQUS "Wimp$State"+CHR$0:ALIGN
3130.commandstring:EQUS "commands":ALIGN
3140:
3150]
3160REM **** End of main code ****
3170REM Set final pointer to find the length of the code
3180PROCpatch_setpc(0)
3190NEXT pass%
3200PROCpatch_savefile
3230REM **** Post-assembly user code *****
3240REM *Run <TaskKiller$Dir>.TaskKiller
3250END
3260:
3270:
3280REM FNsystemvar : Return the contents of any string system var
3290DEFFNsystemvar(Var$):LOCAL addr
3300SYS "XOS_ReadVarVal",Var$,message_buffer%,255,0,3TO,,len
3310message_buffer%?len=13
3320=$message_buffer%
3330:
3340DEFFNset_as_svc(pass%)
3350[OPT pass%
3360 MOV r9, pc ; save current status/mode
3370 ORR r8, r9, #3 ; derive SVC-mode variation of it
3380 TEQP r8, #0 ; enter SVC mode
3390 MOV r0, r0 ; nop
3400 MOV r8, link ; save r14_svc
3410]:=pass%
3420:
3430DEFFNrestore_mode(pass%)
3440[OPT pass%
3450 MOV link, r8 ; restore r14_svc
3460 TEQP r9, #0 ; re-enter original processor mode
3470 MOV r0, r0 ; nop
3480]:=pass%
3490REM **** Filing procedures ****
3500:
3510DEF PROCpatch_loadfile
3520codelen=0
3530DIM MC% &1400
3540endofcode=codelen+&0:max=codelen
3550L%=endofcode:__cap%=FALSE
3650ENDPROC
3660:
3670DEF PROCpatch_savefile
3680outfile$="<TaskKiller$Dir>.TaskKiller"
3690OSCLI("Save "+outfile$+" "+STR$~MC%+" "+STR$~(max+MC%))
3700OSCLI("Settype "+outfile$+" Module")
3710patchdir$="<TaskKiller$Dir>"
3750ENDPROC
3760:
3770REM **** Error Handler ****
3780:
3790DEFPROCError
3870ERROR EXT ERR,REPORT$+" at line "+STR$ERL
3880ENDPROC
3890:
3900REM **** Utility procedures ****
3910:
3920DEFPROCpatch_setpc(n)
3930IF P%-&0>max THENmax=P%-&0
3940P%=n:O%=MC%+n-&0
3950ENDPROC
3960:
3970DEFFNfindfreereg(a,b,c,d):LOCAL n:n=0
3980WHILE n=a OR n=b OR n=c OR n=d
3990 n+=1
4000ENDWHILE
4010=n
4020:
4030REM FNreserve : Reserve space for x bytes
4040DEFFNreserve(bytes):bytes=(bytes+3) AND -4
4050IF (pass% AND 2)=2 THEN
4060 LOCAL I:FOR I=0TObytes-4 STEP4:O%!I=0:NEXT
4070ENDIF
4080P%+=bytes:O%+=bytes
4090=0
4100:
4110REM **** ERR macro procedure ****
4120:
4130REM FNerror : Create an error which is reported.
4140DEFFNerror(a$)
4150[OPT pass%
4160 ADD r0,pc,#0
4170 SWI "OS_GenerateError"
4180 EQUD 1
4190 EQUS a$+CHR$0
4200 ALIGN
4210]
4220=0
4230:
32639REM JFPatch
$� > Patch for memory compilation
7� Created by JFPatch � Justin Fletcher, 05 Sep 1995
0� Intermediate code file created 23 Sep 1995
(� � �Error:�
2�patch_loadfile
<:
F!� **** User pre-assembly ****
P� message_buffer% 256
Z!*| Set Risc OS Version number
d*Set RO$Version 311
n3*RmEnsure UtilityModule 3.11 Set RO$Version 300
x3*RmEnsure UtilityModule 3.00 Set RO$Version 200
�$riscos$=�systemvar("RO$Version")
�C� These numbers count from top left of keyboard to bottom right
�C� ie Esc = 0, f1=1, f2=2, f3=3, .. f12=12, Print=13, ScrLock=14
�%� Break =14, ~=15, 1=16, 2=17,
�5� TAB = 38, LCtrl = 58, LShift= 75, Caps= 92
��
�k1=&60:� Right Alt key
�'� riscos$="311" �k2=&F :k2$="Break"
�-� riscos$="300" �k2=&E :k2$="Scroll-Lock"
�k3=0 :� Escape key
�k4=36 :� Keypad *
�I � "Do you want to assemble the wimp command prompt window ? (y/n) ";
�- �:ș "OS_Confirm" � g:g$=�g:��"yn",g$)>0
�g$
cond_enablewimp=�"yY",g$)>0
!� # COND SET enablewimp FALSE
":
,%� **** Main assembly routine ****
6sp=13:link=14:pc=15
@/vbit=1<<28:cbit=1<<29:zbit=1<<30:nbit=1<<31
JP%=&0:O%=MC%
T� pass%=4 � 6 �2
^"� **** Start of main code ****
h�patch_setpc(0)
r[OPT pass%
|+ ; **** Add module header ****
�- EQUD 0 ; Start offset
�6 EQUD initcode% ; Initialisation offset
�4 EQUD finalcode% ; Finalisation offset
�7 EQUD srvcode% ; Service request offset
�4 EQUD module_title ; Title string offset
�3 EQUD module_help ; Help string offset
�F EQUD module_commands ; Help and command keyword table offset
�:
�.module_title
� EQUS "TaskKiller"+�0
� ALIGN
�:
�.module_help
G EQUS "TaskKiller"+�9+"1.06 ("+��$,5,11)+") � Justin Fletcher"+�0
ALIGN
:
&!; ***** Module commands table
0.module_commands
:- EQUS "TaskKiller" ; Command name
D EQUB 0:ALIGN
N- EQUD 0 ; Code to call
X& EQUD &0 ; Flags
b/ EQUD 0 ; Syntax pointer
l- EQUD help_taskkiller ; Help pointer
v
EQUB 0
� ALIGN
�:
�$; ***** Help and Syntax messages
�.help_taskkiller
�T EQUS "The Task killer module will attempt to kill a task which has crashed. "
�V EQUS "When a task stops responding, use these keys, in order of priority :"+�13
�J EQUS "�1. Use Right-Alt and Escape to exit using error handler"+�13
�U EQUS "�2. Use Right-Alt and "+k2$+" to kill the task with a machette!"+�13+�13
�T EQUS "�WARNING : Do NOT use these in a correctly functioning desktop"+�13+�13
�S EQUS "The Task killer module can also be used to initiate a command prompt "
�% EQUS "by Right-Alt-Keypad *. "
�
EQUB 0
� ALIGN
:
. ; **** End of module header ****
:
.initcode%
* STMFD (sp)!,{link}
4 BL doclaim
> LDMFD (sp)!,{pc}
H:
R
.srvcode%
\3 MOV pc,link ; ie return immediately
f*; TEQ R1,#&27 ; reset module
p; MOVNE pc,link
z:
� .doclaim
�" STMFD (sp)!,{R0-R2,link}
� MOV link,#0
� STR link,doingnow
� STR link,key1pressed
� STR link,key2pressed
� STR link,key3pressed
� STR link,key4pressed
�4 MOV R0,#&10 ; vector &10 ?
�E ADR R1,newvector% ; to be processed at newvector%
� BL claimvector%
� MOV R0,#&0E
� MOV R1,#&0B
> SWI "XOS_Byte" ; enable keypress vector
MOV R0,#0
STRB R0,[R12,#8]
$ LDMFD (sp)!,{R0-R2,pc}
.:
8.finalcode%
B" STMFD (sp)!,{R0-R2,link}
L MOV R0,#&0D
V MOV R1,#&0B
`? SWI "XOS_Byte" ; disable keypress vector
j LDR R12,[R12,#0]
t MOV R0,#&10
~ ADR R1,newvector%
� BL releasevector%
� LDMFD (sp)!,{R0-R2,pc}
�:
�.claimvector%
� STMFD (sp)!,{R2,link}
� BL releasevector%
� MOV R2,#0
� SWI "XOS_Claim"
� LDMFD (sp)!,{R2,pc}^
�:
�.releasevector%
�" STMFD (sp)!,{R0-R2,link}
.retryrelease%
LDMFD sp,{R0,R1}
MOV R2,#0
SWI "XOS_Release"
( BVC retryrelease%
2 CMP pc,#0
< LDMFD (sp)!,{R0-R2,pc}
F:
P.newvector%
Z= CMP R0,#&0B ; is this a keypress ?
d5 MOVNE pc,link ; if not exit
n5 STMFD (sp)!,{R0-r2,R4,R5,link} ; stack regs
x MOV r4,#0
�I CMP R2,#k1 ; code for key 1 (controlling key)
� STREQ R1,key1pressed
� �Q r4,#1
� BEQ whichkeys%
�C CMP R2,#k2 ; code for key 2 (Kill task)
� STREQ R1,key2pressed
� �Q r4,#1
�? CMP R2,#k3 ; code for key 3 (Error)
� STREQ R1,key3pressed
� �Q r4,#1
�; CMP R2,#k4 ; code for key 4 (�)
� STREQ R1,key4pressed
� �Q r4,#1
CMP r4,#1
& LDMNEFD (sp)!,{R0-R2,R4,R5,pc}
:
".whichkeys%
, LDR R2,key1pressed
6 TEQ R2,#0
@& LDMEQFD (sp)!,{R0-R2,R4,R5,pc}
J LDR R2,key2pressed
T TEQ R2,#0
^ BEQ testforkey3
h> ADR r1,doexitcode% ; r1=address to jump to
r.setupjump
| MOV R5,pc
� BIC R4,R5,#1
� TEQP R4,#1
� MOV R0,R0
� STMFD (sp)!,{link}
� LDRB R0,doingnow
� TEQ R0,#0
� BNE alreadydoing
�3 MOV r0,r1 ; r0=address
� MOV R1,#0
�! SWI "XOS_AddCallBack"
� MOVVC R0,#1
�; STRVCB R0,doingnow ; if ok then set doing
�.alreadydoing
LDMFD (sp)!,{link}
TEQP R5,#0
MOV R0,R0
&& LDMFD (sp)!,{R0-R2,R4,R5,pc}
0J.testforkey3 ; check that key 3 is pressed (Error)
: LDR R2,key3pressed
D TEQ R2,#0
N BEQ testforkey4
X ADR r1,doerrorcode%
b B setupjump
l:
vF.testforkey4 ; check that key 4 is pressed (�)
� LDR R2,key4pressed
� TEQ R2,#0
�& LDMEQFD (sp)!,{R0-R2,R4,R5,pc}
� ADR r1,doosclicode%
� B setupjump
�:
�.doexitcode%
� STMFD (sp)!,{link}
�! BL delinkapplication
� BL restorebreak
� MOV R0,#0
� STRB R0,doingnow
�; code goes here -
; SWI "OS_EnterOS"
SWI "OS_Exit"
; - to here
LDMFD (sp)!,{pc}
*:
4.doerrorcode%
> STMFD (sp)!,{link}
H! BL delinkapplication
R BL restorebreak
\ MOV R0,#0
f STRB R0,doingnow
p; code goes here -
z! �error("Program terminated")
�; - to here
� LDMFD (sp)!,{pc}
�:
�.delinkapplication
�# STMFD (sp)!,{r0-r12,link}
� �set_as_svc(pass%)
�
.dla_loop
�P ADR r0,buffer ; buffer for previously linked vectors ?
�: MOV r1,#32 ; length of buffer
�P SWI "XOS_DelinkApplication" ; remove any vectors used by application
�? CMP r1,#0 ; was the buffer full ?
�I BEQ dla_loop ; if it was, then go around again
� �restore_mode(pass%)
" LDMFD (sp)!,{r0-r12,pc}^
.buffer
�reserve(32)
$( ; space for vector storage
.:
8:
B.doosclicode%
L# STMFD (sp)!,{r0-r12,link}
V �set_as_svc(pass%)
` BL restorebreak
j; code goes here -
tB ADR r0,wimpvar ; address of wimp variable
~; ADR r1,oscliline ; address of buffer
�7 MOV r2,#255 ; buffer length
�+ MOV r3,#0 ; ?
�+ MOV r4,#3 ; ?
�7 SWI "XOS_ReadVarVal" ; read variable
�7 BVS exitoscli ; exit if error
�8 LDR r0,[r1,#0] ; get first word
�I LDR r2,commandstring ; read what it should be for comm
�1 CMP r0,r2 ; compare
�9 LDRNE r0,[r1,#0] ; get second word
�I LDRNE r2,commandstring+4 ; read what it should be for ands
�1 CMPNE r0,r2 ; compare
� BNE wimprunning
.oscliloop
SWI &100+�("*")
4 ADR r0,oscliline ; addr of buffer
6 MOV r1,#&100 ; length of buffer
(8 MOV r2,#&20 ; min ascii accepted
28 MOV r3,#&FF ; max ascii accepted
< SWI "XOS_ReadLine"
F; BVS osclierror ; if error then process
PF CMP r1,#0 ; if no characters typed then exit
Z BEQ exitoscli
d0 SWI "XOS_CLI" ; do command
nB BVC oscliloop ; if no error then loop around
x.osclierror
�: ADD r0,r0,#4 ; skip error code byte
�5 SWI "OS_Write0" ; write to screen
� SWI "OS_NewLine"
� B oscliloop
�.exitoscli
� MOV R0,#0
� STRB R0,doingnow
�; - to here
� �restore_mode(pass%)
�" LDMFD (sp)!,{r0-r12,pc}^
�:
�.wimprunning
�]
� cond_enablewimp �
[ OPT pass%
ADR r0,wimpcommand
" SWI "Wimp_StartTask"
,]
6�
@[ OPT pass%
J B exitoscli
T:
^.restorebreak
h" STMFD (sp)!,{r8-r9,link}
r �set_as_svc(pass%)
| MOV r0,#200
� MOV r1,#0
�B SWI "OS_Byte" ; Clear Break/Escape disabled
� MOV r0,#229
� MOV r1,#0
�4 SWI "OS_Byte" ; Enable Escape
� �restore_mode(pass%)
� LDMFD (sp)!,{r8-r9,pc}
�:
�; variables
�.doingnow :EQUD 0
�.key1pressed:EQUD 0
�.key2pressed:EQUD 0
�.key3pressed:EQUD 0
.key4pressed:EQUD 0
.oscliline
�reserve(256)
&$.wimpcommand:EQUS "GOS"+�0:ALIGN
0+.wimpvar :EQUS "Wimp$State"+�0:ALIGN
:(.commandstring:EQUS "commands":ALIGN
D:
N]
X � **** End of main code ****
b6� Set final pointer to find the length of the code
l�patch_setpc(0)
v � pass%
��patch_savefile
�(� **** Post-assembly user code *****
�&� *Run <TaskKiller$Dir>.TaskKiller
��
�:
�:
�@� FNsystemvar : Return the contents of any string system var
� ݤsystemvar(Var$):� addr
�:ș "XOS_ReadVarVal",Var$,message_buffer%,255,0,3�,,len
�message_buffer%?len=13
�=$message_buffer%
:
ݤset_as_svc(pass%)
[OPT pass%
; MOV r9, pc ; save current status/mode
*A �R r8, r9, #3 ; derive SVC-mode variation of it
41 TEQP r8, #0 ; enter SVC mode
>& MOV r0, r0 ; nop
H/ MOV r8, link ; save r14_svc
R ]:=pass%
\:
fݤrestore_mode(pass%)
p[OPT pass%
z2 MOV link, r8 ; restore r14_svc
�C TEQP r9, #0 ; re-enter original processor mode
�& MOV r0, r0 ; nop
� ]:=pass%
�!� **** Filing procedures ****
�:
�� �patch_loadfile
�
codelen=0
�� MC% &1400
�$endofcode=codelen+&0:max=codelen
�L%=endofcode:__cap%=�
B�
L:
V� �patch_savefile
`*outfile$="<TaskKiller$Dir>.TaskKiller"
j1�("Save "+outfile$+" "+�~MC%+" "+�~(max+MC%))
t$�("Settype "+outfile$+" Module")
~ patchdir$="<TaskKiller$Dir>"
��
�:
� � **** Error Handler ****
�:
� ��Error
� � �,�$+" at line "+Þ
(�
2:
<"� **** Utility procedures ****
F:
P��patch_setpc(n)
Z� P%-&0>max �max=P%-&0
dP%=n:O%=MC%+n-&0
n�
x:
�"ݤfindfreereg(a,b,c,d):� n:n=0
� ȕ n=a � n=b � n=c � n=d
� n+=1
��
�=n
�:
�+� FNreserve : Reserve space for x bytes
�)ݤreserve(bytes):bytes=(bytes+3) � -4
�� (pass% � 2)=2 �
�" � I:� I=0�bytes-4 �4:O%!I=0:�
��
�P%+=bytes:O%+=bytes
�=0
:
#� **** ERR macro procedure ****
:
"2� FNerror : Create an error which is reported.
,ݤerror(a$)
6[OPT pass%
@ ADD r0,pc,#0
J SWI "OS_GenerateError"
T EQUD 1
^ EQUS a$+�0
h ALIGN
r]
|=0
�:
� JFPatch
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00001900 20 63 6f 64 65 20 67 6f 65 73 20 68 65 72 65 20 | code goes here |
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00001a10 70 16 3b 20 63 6f 64 65 20 67 6f 65 73 20 68 65 |p.; code goes he|
00001a20 72 65 20 2d 0d 08 7a 21 20 a4 65 72 72 6f 72 28 |re -..z! .error(|
00001a30 22 50 72 6f 67 72 61 6d 20 74 65 72 6d 69 6e 61 |"Program termina|
00001a40 74 65 64 22 29 0d 08 84 0f 3b 20 2d 20 74 6f 20 |ted")....; - to |
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00001a70 98 05 3a 0d 08 a2 16 2e 64 65 6c 69 6e 6b 61 70 |..:.....delinkap|
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00001a90 20 53 54 4d 46 44 20 20 20 28 73 70 29 21 2c 7b | STMFD (sp)!,{|
00001aa0 72 30 2d 72 31 32 2c 6c 69 6e 6b 7d 0d 08 b6 1a |r0-r12,link}....|
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00001b30 20 20 20 72 31 2c 23 33 32 20 20 20 20 20 20 20 | r1,#32 |
00001b40 20 20 20 20 20 20 20 20 20 20 20 3b 20 6c 65 6e | ; len|
00001b50 67 74 68 20 6f 66 20 62 75 66 66 65 72 0d 08 de |gth of buffer...|
00001b60 50 20 20 20 20 53 57 49 20 20 20 20 20 22 58 4f |P SWI "XO|
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00001b90 79 20 76 65 63 74 6f 72 73 20 75 73 65 64 20 62 |y vectors used b|
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00001bc0 23 30 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |#0 |
00001bd0 20 20 20 20 20 3b 20 77 61 73 20 74 68 65 20 62 | ; was the b|
00001be0 75 66 66 65 72 20 66 75 6c 6c 20 3f 0d 08 f2 49 |uffer full ?...I|
00001bf0 20 20 20 20 42 45 51 20 20 20 20 20 64 6c 61 5f | BEQ dla_|
00001c00 6c 6f 6f 70 20 20 20 20 20 20 20 20 20 20 20 20 |loop |
00001c10 20 20 20 20 3b 20 69 66 20 69 74 20 77 61 73 2c | ; if it was,|
00001c20 20 74 68 65 6e 20 67 6f 20 61 72 6f 75 6e 64 20 | then go around |
00001c30 61 67 61 69 6e 0d 08 fc 1c 20 20 20 20 a4 72 65 |again.... .re|
00001c40 73 74 6f 72 65 5f 6d 6f 64 65 28 70 61 73 73 25 |store_mode(pass%|
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00002bd0 73 6b 4b 69 6c 6c 65 72 24 44 69 72 3e 22 0d 0e |skKiller$Dir>"..|
00002be0 a6 05 e1 0d 0e b0 05 3a 0d 0e ba 1d f4 20 2a 2a |.......:..... **|
00002bf0 2a 2a 20 45 72 72 6f 72 20 48 61 6e 64 6c 65 72 |** Error Handler|
00002c00 20 2a 2a 2a 2a 0d 0e c4 05 3a 0d 0e ce 0b dd f2 | ****....:......|
00002c10 45 72 72 6f 72 0d 0f 1e 1b 85 20 a2 20 9f 2c f6 |Error..... . .,.|
00002c20 24 2b 22 20 61 74 20 6c 69 6e 65 20 22 2b c3 9e |$+" at line "+..|
00002c30 0d 0f 28 05 e1 0d 0f 32 05 3a 0d 0f 3c 22 f4 20 |..(....2.:..<". |
00002c40 2a 2a 2a 2a 20 55 74 69 6c 69 74 79 20 70 72 6f |**** Utility pro|
00002c50 63 65 64 75 72 65 73 20 2a 2a 2a 2a 0d 0f 46 05 |cedures ****..F.|
00002c60 3a 0d 0f 50 14 dd f2 70 61 74 63 68 5f 73 65 74 |:..P...patch_set|
00002c70 70 63 28 6e 29 0d 0f 5a 1a e7 20 50 25 2d 26 30 |pc(n)..Z.. P%-&0|
00002c80 3e 6d 61 78 20 8c 6d 61 78 3d 50 25 2d 26 30 0d |>max .max=P%-&0.|
00002c90 0f 64 14 50 25 3d 6e 3a 4f 25 3d 4d 43 25 2b 6e |.d.P%=n:O%=MC%+n|
00002ca0 2d 26 30 0d 0f 6e 05 e1 0d 0f 78 05 3a 0d 0f 82 |-&0..n....x.:...|
00002cb0 22 dd a4 66 69 6e 64 66 72 65 65 72 65 67 28 61 |"..findfreereg(a|
00002cc0 2c 62 2c 63 2c 64 29 3a ea 20 6e 3a 6e 3d 30 0d |,b,c,d):. n:n=0.|
00002cd0 0f 8c 1c c8 95 20 6e 3d 61 20 84 20 6e 3d 62 20 |..... n=a . n=b |
00002ce0 84 20 6e 3d 63 20 84 20 6e 3d 64 0d 0f 96 09 20 |. n=c . n=d.... |
00002cf0 6e 2b 3d 31 0d 0f a0 05 ce 0d 0f aa 06 3d 6e 0d |n+=1.........=n.|
00002d00 0f b4 05 3a 0d 0f be 2b f4 20 46 4e 72 65 73 65 |...:...+. FNrese|
00002d10 72 76 65 20 3a 20 52 65 73 65 72 76 65 20 73 70 |rve : Reserve sp|
00002d20 61 63 65 20 66 6f 72 20 78 20 62 79 74 65 73 0d |ace for x bytes.|
00002d30 0f c8 29 dd a4 72 65 73 65 72 76 65 28 62 79 74 |..)..reserve(byt|
00002d40 65 73 29 3a 62 79 74 65 73 3d 28 62 79 74 65 73 |es):bytes=(bytes|
00002d50 2b 33 29 20 80 20 2d 34 0d 0f d2 15 e7 20 28 70 |+3) . -4..... (p|
00002d60 61 73 73 25 20 80 20 32 29 3d 32 20 8c 0d 0f dc |ass% . 2)=2 ....|
00002d70 22 20 ea 20 49 3a e3 20 49 3d 30 b8 62 79 74 65 |" . I:. I=0.byte|
00002d80 73 2d 34 20 88 34 3a 4f 25 21 49 3d 30 3a ed 0d |s-4 .4:O%!I=0:..|
00002d90 0f e6 05 cd 0d 0f f0 17 50 25 2b 3d 62 79 74 65 |........P%+=byte|
00002da0 73 3a 4f 25 2b 3d 62 79 74 65 73 0d 0f fa 06 3d |s:O%+=bytes....=|
00002db0 30 0d 10 04 05 3a 0d 10 0e 23 f4 20 2a 2a 2a 2a |0....:...#. ****|
00002dc0 20 45 52 52 20 6d 61 63 72 6f 20 70 72 6f 63 65 | ERR macro proce|
00002dd0 64 75 72 65 20 2a 2a 2a 2a 0d 10 18 05 3a 0d 10 |dure ****....:..|
00002de0 22 32 f4 20 46 4e 65 72 72 6f 72 20 3a 20 43 72 |"2. FNerror : Cr|
00002df0 65 61 74 65 20 61 6e 20 65 72 72 6f 72 20 77 68 |eate an error wh|
00002e00 69 63 68 20 69 73 20 72 65 70 6f 72 74 65 64 2e |ich is reported.|
00002e10 0d 10 2c 0f dd a4 65 72 72 6f 72 28 61 24 29 0d |..,...error(a$).|
00002e20 10 36 0e 5b 4f 50 54 20 70 61 73 73 25 0d 10 40 |.6.[OPT pass%..@|
00002e30 15 20 20 41 44 44 20 20 20 20 72 30 2c 70 63 2c |. ADD r0,pc,|
00002e40 23 30 0d 10 4a 1f 20 20 53 57 49 20 20 20 20 22 |#0..J. SWI "|
00002e50 4f 53 5f 47 65 6e 65 72 61 74 65 45 72 72 6f 72 |OS_GenerateError|
00002e60 22 0d 10 54 0e 20 20 45 51 55 44 20 20 20 31 0d |"..T. EQUD 1.|
00002e70 10 5e 12 20 20 45 51 55 53 20 20 20 61 24 2b bd |.^. EQUS a$+.|
00002e80 30 0d 10 68 0b 20 20 41 4c 49 47 4e 0d 10 72 05 |0..h. ALIGN..r.|
00002e90 5d 0d 10 7c 06 3d 30 0d 10 86 05 3a 0d 7f 7f 0d |]..|.=0....:....|
00002ea0 f4 20 4a 46 50 61 74 63 68 0d ff |. JFPatch..|
00002eab 
.