60 lines
1.7 KiB
ArmAsm
60 lines
1.7 KiB
ArmAsm
|
|
||
|
|
# define call_push(x) \
|
||
|
|
lda $16, 0(x); /* copy x to first argument register */ \
|
||
|
|
jsr $26, GC_push_one; /* call GC_push_one, ret addr in $26 */ \
|
||
|
|
ldgp $gp, 0($26) /* restore $gp register from $ra */
|
||
|
|
|
||
|
|
.text
|
||
|
|
.align 4
|
||
|
|
.globl GC_push_regs
|
||
|
|
.ent GC_push_regs 2
|
||
|
|
GC_push_regs:
|
||
|
|
ldgp $gp, 0($27) # set gp from the procedure value reg
|
||
|
|
lda $sp, -32($sp) # make stack frame
|
||
|
|
stq $26, 8($sp) # save return address
|
||
|
|
.mask 0x04000000, -8
|
||
|
|
.frame $sp, 16, $26, 0
|
||
|
|
|
||
|
|
# call_push($0) # expression eval and int func result
|
||
|
|
|
||
|
|
# call_push($1) # temp regs - not preserved cross calls
|
||
|
|
# call_push($2)
|
||
|
|
# call_push($3)
|
||
|
|
# call_push($4)
|
||
|
|
# call_push($5)
|
||
|
|
# call_push($6)
|
||
|
|
# call_push($7)
|
||
|
|
# call_push($8)
|
||
|
|
|
||
|
|
call_push($9) # Saved regs
|
||
|
|
call_push($10)
|
||
|
|
call_push($11)
|
||
|
|
call_push($12)
|
||
|
|
call_push($13)
|
||
|
|
call_push($14)
|
||
|
|
|
||
|
|
call_push($15) # frame ptr or saved reg
|
||
|
|
|
||
|
|
# call_push($16) # argument regs - not preserved cross calls
|
||
|
|
# call_push($17)
|
||
|
|
# call_push($18)
|
||
|
|
# call_push($19)
|
||
|
|
# call_push($20)
|
||
|
|
# call_push($21)
|
||
|
|
|
||
|
|
# call_push($22) # temp regs - not preserved cross calls
|
||
|
|
# call_push($23)
|
||
|
|
# call_push($24)
|
||
|
|
# call_push($25)
|
||
|
|
|
||
|
|
# call_push($26) # return address - expression eval
|
||
|
|
# call_push($27) # procedure value or temporary reg
|
||
|
|
# call_push($28) # assembler temp - not presrved
|
||
|
|
call_push($29) # Global Pointer
|
||
|
|
# call_push($30) # Stack Pointer
|
||
|
|
|
||
|
|
ldq $26, 8($sp) # restore return address
|
||
|
|
lda $sp, 32($sp) # pop stack frame
|
||
|
|
ret $31, ($26), 1 # return ($31 == hardwired zero)
|
||
|
|
.end GC_push_regs
|