mirror of
https://gcc.gnu.org/git/gcc.git
synced 2024-12-29 22:15:03 +08:00
88 lines
1.7 KiB
ArmAsm
88 lines
1.7 KiB
ArmAsm
# $Id: alpha_mach_dep.s,v 1.2 1993/01/18 22:54:51 dosser Exp $
|
|
.arch ev6
|
|
|
|
.text
|
|
.align 4
|
|
.globl GC_push_regs
|
|
.ent GC_push_regs 2
|
|
GC_push_regs:
|
|
ldgp $gp, 0($27)
|
|
lda $sp, -16($sp)
|
|
stq $26, 0($sp)
|
|
.mask 0x04000000, 0
|
|
.frame $sp, 16, $26, 0
|
|
|
|
# $0 integer result
|
|
# $1-$8 temp regs - not preserved cross calls
|
|
# $9-$15 call saved regs
|
|
# $16-$21 argument regs - not preserved cross calls
|
|
# $22-$28 temp regs - not preserved cross calls
|
|
# $29 global pointer - not preserved cross calls
|
|
# $30 stack pointer
|
|
|
|
# define call_push(x) \
|
|
mov x, $16; \
|
|
jsr $26, GC_push_one; \
|
|
ldgp $gp, 0($26)
|
|
|
|
call_push($9)
|
|
call_push($10)
|
|
call_push($11)
|
|
call_push($12)
|
|
call_push($13)
|
|
call_push($14)
|
|
call_push($15)
|
|
|
|
# $f0-$f1 floating point results
|
|
# $f2-$f9 call saved regs
|
|
# $f10-$f30 temp regs - not preserved cross calls
|
|
|
|
# Use the most efficient transfer method for this hardware.
|
|
# Bit 1 detects the FIX extension, which includes ftoit.
|
|
amask 2, $0
|
|
bne $0, $use_stack
|
|
|
|
#undef call_push
|
|
#define call_push(x) \
|
|
ftoit x, $16; \
|
|
jsr $26, GC_push_one; \
|
|
ldgp $gp, 0($26)
|
|
|
|
call_push($f2)
|
|
call_push($f3)
|
|
call_push($f4)
|
|
call_push($f5)
|
|
call_push($f6)
|
|
call_push($f7)
|
|
call_push($f8)
|
|
call_push($f9)
|
|
|
|
ldq $26, 0($sp)
|
|
lda $sp, 16($sp)
|
|
ret $31, ($26), 1
|
|
|
|
.align 4
|
|
$use_stack:
|
|
|
|
#undef call_push
|
|
#define call_push(x) \
|
|
stt x, 8($sp); \
|
|
ldq $16, 8($sp); \
|
|
jsr $26, GC_push_one; \
|
|
ldgp $gp, 0($26)
|
|
|
|
call_push($f2)
|
|
call_push($f3)
|
|
call_push($f4)
|
|
call_push($f5)
|
|
call_push($f6)
|
|
call_push($f7)
|
|
call_push($f8)
|
|
call_push($f9)
|
|
|
|
ldq $26, 0($sp)
|
|
lda $sp, 16($sp)
|
|
ret $31, ($26), 1
|
|
|
|
.end GC_push_regs
|