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