gered/FoenixMCP
1
0
Fork 0
Code Issues Pull requests Actions Packages Projects Releases Wiki Activity

Cleanup startup_m68k following calling convention update

Browse source
This commit is contained in:
Vincent Barrilliot 2023-01-31 01:37:03 +01:00
parent 52caf47fce
commit 557f391277
1 changed files with 3 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
src/m68k/startup_m68k.s
View file

@ -382,10 +382,6 @@ panic_lock: bra panic_lock
; Function to make a system call based on the number of the system function:
; int32_t syscall(int32_t number, int32_t p0, int32_t p1, int32_t p2, int32_t p3, int32_t p4, int32_t p5)
;
xdef _trace
aze dc.b "return address: %p",0
even
_syscall:
; Repush the parameters
move.l 28(sp),-(sp)
@ -395,13 +391,14 @@ _syscall:
move.l 28(sp),-(sp)
move.l 28(sp),-(sp)
move.l 28(sp),-(sp)
trap #15 ; Call into the kernel
trap #15 ; Call into the kernel
lea 28(sp),sp
rts
;
; TRAP#15 handler... transfer control to the C dispatcher
;
KFN_ELEVATE equ $43
h_trap_15:
; Save sr, return address and non-scratch registers into our save area
; TODO we should guard this if we want to allow system calls from interrupts.
@ -418,7 +415,7 @@ h_trap_15:
move.l usp,sp ; If not, the argument are on the user stack, so use it
syscall_stack_set:
cmpi.w #$43,(sp) ; Is this a sys_proc_elevate call?
cmpi.w #KFN_ELEVATE,(sp) ; Is this a sys_proc_elevate call?
beq.s h_trap_elev ; Yes, just handle it here
jsr _syscall_dispatch ; Call the C routine to do the dispatch