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/* -*- Mode: asm; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* Version: MPL 1.1
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
.LEVEL 1.1
.text
.align 4
framesz:
.equ 128
.globl NS_InvokeByIndex
.type NS_InvokeByIndex, @function
NS_InvokeByIndex:
.PROC
.CALLINFO FRAME=72, CALLER,SAVE_RP, SAVE_SP, ENTRY_GR=3
.ENTRY
; frame marker takes 48 bytes,
; register spill area takes 8 bytes,
; local stack area takes 72 bytes result in 128 bytes total
STW %rp,-20(%sp)
STW,MA %r3,128(%sp)
LDO -framesz(%r30),%r28
STW %r28,-4(%r30) ; save previous sp
STW %r19,-32(%r30)
STW %r26,-36-framesz(%r30) ; save argument registers in
STW %r25,-40-framesz(%r30) ; in PREVIOUS frame
STW %r24,-44-framesz(%r30) ;
STW %r23,-48-framesz(%r30) ;
.CALL ARGW0=GR,ARGW1=GR,ARGW2=GR ;in=24,25,26;out=28
BL invoke_count_bytes,%r31
COPY %r31,%r2
CMPIB,>= 0,%r28, .+76
COPY %r30,%r3 ; copy stack ptr to saved stack ptr
ADD %r30,%r28,%r30 ; extend stack frame
LDW -4(%r3),%r28 ; move frame
STW %r28,-4(%r30)
LDW -8(%r3),%r28
STW %r28,-8(%r30)
LDW -12(%r3),%r28
STW %r28,-12(%r30)
LDW -16(%r3),%r28
STW %r28,-16(%r30)
LDW -20(%r3),%r28
STW %r28,-20(%r30)
LDW -24(%r3),%r28
STW %r28,-24(%r30)
LDW -28(%r3),%r28
STW %r28,-28(%r30)
LDW -32(%r3),%r28
STW %r28,-32(%r30)
LDO -40(%r30),%r26 ; load copy address
LDW -44-framesz(%r3),%r25 ; load rest of 2 arguments
LDW -48-framesz(%r3),%r24 ;
LDW -32(%r30),%r19 ; shared lib call destroys r19; reload
.CALL ARGW0=GR,ARGW1=GR,ARGW2=GR ;in=24,25,26
BL invoke_copy_to_stack,%r31
COPY %r31,%r2
LDO -48(%r30),%r20
EXTRW,U,= %r28,31,1,%r22
FLDD 0(%r20),%fr7 ; load double arg 1
EXTRW,U,= %r28,30,1,%r22
FLDW 8(%r20),%fr5L ; load float arg 1
EXTRW,U,= %r28,29,1,%r22
FLDW 4(%r20),%fr6L ; load float arg 2
EXTRW,U,= %r28,28,1,%r22
FLDW 0(%r20),%fr7L ; load float arg 3
LDW -36-framesz(%r3),%r26 ; load ptr to 'that'
LDW -40(%r30),%r25 ; load the rest of dispatch argument registers
LDW -44(%r30),%r24
LDW -48(%r30),%r23
LDW -36-framesz(%r3),%r20 ; load vtable addr
LDW -40-framesz(%r3),%r28 ; load index
LDW 0(%r20),%r20 ; follow vtable
SH2ADDL %r28,%r20,%r28 ; add 4*index to vtable entry
LDW 0(%r28),%r22 ; load vtable entry
.CALL ARGW0=GR,ARGW1=GR,ARGW2=GR,ARGW3=GR,RTNVAL=GR ;in=22-26;out=28;
BL $$dyncall,%r31
COPY %r31,%r2
LDW -32(%r30),%r19
COPY %r3,%r30 ; restore saved stack ptr
LDW -148(%sp),%rp
LDWM -128(%sp),%r3
BV,N (%rp)
NOP
.EXIT
.PROCEND ;in=23,24,25,26;
.SIZE NS_InvokeByIndex, .-NS_InvokeByIndex