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1862
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1 *******************************************************************
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2 * Tsmon - Timesharing monitor
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3 *
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4 * $Id$
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5 *
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6 * Edt/Rev YYYY/MM/DD Modified by
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7 * Comment
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8 * ------------------------------------------------------------------
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9 * 6 ????/??/??
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10 * From Tandy OS-9 Level Two VR 02.00.01.
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11
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12 nam Tsmon
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13 ttl Timesharing monitor
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14
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15 use defsfile.d
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16
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17 rev set $00
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18 edition set 8
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19
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20 psect tsmon_a,Prgrm+Objct,ReEnt+rev,edition,200,start
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21
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22 vsect
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23 childid rmb 1
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24 parmptr rmb 2
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25 parmlen rmb 2
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26 inbuff rmb 128
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27 endsect
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28
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29 Login fcc "LOGIN"
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30 LoginPrm fcb C$CR
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31
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32 IcptRtn rti
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33
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34 start stx <parmptr,u save parameter pointer
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35 std <parmlen,u save parameter length
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36 leax IcptRtn,pcr point to intercept routine
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37 os9 F$Icpt and set it
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38 L0024 ldx <parmptr,u get pointer to parameter
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39 ldd <parmlen,u and length
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40 cmpd #$0002
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41 bcs L0052
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42 lda ,x get byte at command line
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43 cmpa #C$CR cr?
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44 beq L0052 if so, branch
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45 clra stdin
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46 os9 I$Close close it
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47 lda #UPDAT.
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48 os9 I$Open open device on command line
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49 bcs Exit branch if error
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50 inca A = 1
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51 os9 I$Close close stdout
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52 inca A = 2
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53 os9 I$Close close stderr
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54 clra stdin path
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55 os9 I$Dup dup to stdout
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56 bcs Exit branch if error
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57 os9 I$Dup dup to stderr
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58 bcs Exit branch if error
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59 L0052 clra stdin
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60 leax <inbuff,u point to buffer
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61 ldy #$0001 read 1 byte
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62 os9 I$ReadLn read line
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63 bcs L0024 branch if error
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64 lda #Objct object
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65 clrb no additional mem
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66 leax <Login,pcr point to login
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67 leau <LoginPrm,pcr and to parameters
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68 ldy #$0000 parameter size
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69 os9 F$Fork fork program
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70 bcs L0024 branch if error
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71 sta <childid else save process ID of child
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72 L0072 os9 F$Wait wait for it to finish
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73 cmpa <childid same as PID we forked?
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74 bne L0072 if not, wait more
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75 bra L0024 else go back
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76 Exit os9 F$Exit exit
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77
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78 endsect
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