Commit Graph

11 Commits

Author SHA1 Message Date
Roland McGrath
d85eb528c4 Rearranged structure so machine-dependent portion is laid out like `struct
mips_thread_state; struct mips_exc_state; struct mips_float_state;'.
1994-08-03 16:32:47 +00:00
Roland McGrath
b8f04323dc Compare *reply_port to MACH_PORT_NULL, not implicit zero.
(restore_gpr): Use N-1 as subscript into sc_gpr (sc_gpr[0] => $1).
Before general regs, restore from sc_mdlo and sc_mdhi.
Don't treat sp, fp specially; use restore_gpr for them too.
For final return, store user $1 value beyond top of user stack ahead of
time; Then use $1 to hold the user PC, and restore it from the stack in the
delay slot.
1994-08-03 06:45:59 +00:00
Roland McGrath
8d2f85c668 (_hurd_setup_sighandler): Copy TS to SCP all at once. 1994-08-03 01:38:43 +00:00
Roland McGrath
b6cc520764 (struct sigcontext): sc_gpr has 31 elts; sc_gpr, sc_pc, sc_mdlo, sc_mdhi
are arranged in that order to mimic struct mips_thread_state.
1994-08-03 01:36:31 +00:00
Roland McGrath
c1eb1d76e2 (_hurd_setup_sighandler): Save mdlo and mdhi. 1994-08-02 00:15:34 +00:00
Roland McGrath
e0ec2e47de (struct sigcontext): Add members sc_mdlo, sc_mdhi. 1994-08-02 00:12:17 +00:00
Roland McGrath
6adee8d53b Rename variable AT (which is the register's name) to SCPREG.
Fix some SCP references in register loads to use SCPREG instead.
Load SCPREG->sc_pc into $24 and jump to it, restoring $at in the delay slot.
This still leaves $24 clobbered.
1994-07-29 16:39:58 +00:00
Roland McGrath
3844669a62 Use `unsigned int' consistently for port names. 1994-07-29 15:53:52 +00:00
Roland McGrath
840c5e79e3 Don't set up args on the stack; pass them in registers. 1994-07-29 15:46:10 +00:00
Roland McGrath
76657427f5 entered into RCS 1994-07-09 07:24:37 +00:00
Roland McGrath
c4a19f6a24 Initial revision 1994-07-09 07:12:44 +00:00