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update shell comments

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Phil Budne
2016-03-15 21:29:38 -04:00
parent fbbe0c6729
commit ac94df5d48
1 changed files with 7 additions and 3 deletions
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10
src/other/pbsh.s
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@@ -280,11 +280,15 @@ parent:
" try to read any messages) the shell's blocked smes call returned an
" error indication that the target process did not exist. Thus the
" shell's smes became, in effect, the equivalent of wait.
dac pid
lac delimchar
"
" PLB: The "exit" system call code apears to "fall" into the
" rmes code So Dennis' memory of what the shell did may have
" been correct, but not for the reason he remembered.
dac pid " save child pid
lac delimchar " get command delimiter
sad o46 " ampersand?
jmp newcom " yes: go back without wait
lac pid
lac pid " no: get pid
sys smes " hang until child exits
2: lac delimchar
sad o73 " semi?