glm94/pdp7-unix
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Required changes to make it compile again.

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This commit is contained in:
Sebastian Rasmussen
2020-01-08 15:59:48 +08:00
parent 940d8e21e2
commit 42c521fdbe
3 changed files with 12 additions and 12 deletions
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src/sys/s1.s
+9 -9
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@@ -30,12 +30,12 @@ orig:
lacq
dac u.mq " save user MQ in user area
lac 8
dac u.rq " save user auto-index location 8 in uarea
dac u.rg " save user auto-index location 8 in uarea
lac 9
dac u.rq+1 " save auto-index location 9 in user area
jms copy; 10; u.rq+2; 6 " save auto-index locations 10-15 (using 8/9!)
dac u.rg+1 " save auto-index location 9 in user area
jms copy; 10; u.rg+2; 6 " save auto-index locations 10-15 (using 8/9!)
lac 1b " load user PC
dac u.rq+8 " save in user area
dac u.rg+8 " save in user area
-1 " load -1
dac .savblk " set "save" flag (cleared by disk I/O?)
dac .insys " set "in system" flag
@@ -44,7 +44,7 @@ orig:
jms swap " no: quantum expired: swap process out
ion " interrupts on
-1
tad u.rq+8 " get address of system call
tad u.rg+8 " get address of system call
jms laci " load system call instruction
jms betwen; o20001; swn " range check (expects CAL I!)
jmp badcal " bad system call
@@ -71,15 +71,15 @@ 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 (use 8/9)
lac u.rq+1 " restore auto-index location 9
jms copy; u.rg+2; 10; 6 " restore auto-index locations 10-15 (use 8/9)
lac u.rg+1 " restore auto-index location 9
dac 9
lac u.rq " restore auto-index location 8
lac u.rg " restore auto-index location 8
dac 8
lac u.mq " restore MQ register
lmq
lac u.ac " restore AC register
jmp u.rq+8 i " return to user
jmp u.rg+8 i " return to user
" scheduler / swapper / idle loop
swap: 0