glm94/pdp7-unix
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

more system comments

Browse Source
This commit is contained in:
phil
2019-10-30 00:53:48 -04:00
parent f9dbe7e946
commit 2b2e057f7f
4 changed files with 54 additions and 43 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/sys/s1.s
+3 -3
View File
@@ -71,7 +71,7 @@ sysexit: " common system call exit code
jms chkint " pending user interrupt?
skp " no, return to user
jmp .save " yes: dump core
jms copy; u.rq+2; 10; 6 " restore auto-index locations 10-15
jms copy; u.rq+2; 10; 6 " restore auto-index locations 10-15 (use 8/9)
lac u.rq+1 " restore auto-index location 9
dac 9
lac u.rq " restore auto-index location 8
@@ -122,14 +122,14 @@ swap: 0
jms dskswap; 06000 " read process in?
lac u.swapret " set our return addr
dac swap " to saved return addr
lac o20 " reset maxquant to 16 ticks
lac o20 " reset maxquant to 16 ticks (149.333ms)
dac maxquant
lac u.dspbuf
sza " using display?
"** 01-s1.pdf page 4
jms movdsp " yes. switch to user display bufferx
3:
dzm uquant " no. reset process tick count
dzm uquant " reset process tick count
iof
jmp swap i " return
t = t+1