michael@0:   .LEVEL  1.1
michael@0: framesz .EQU 128
michael@0: 
michael@0: ; XPTC_InvokeByIndex(nsISuppots* that, uint32_t methodIndex,
michael@0: ;   uint32_t paramCount, nsXPTCVariant* params);
michael@0: 
michael@0: ; g++ need to compile everything with -fvtable-thunks !
michael@0: 
michael@0:   .SPACE  $TEXT$,SORT=8
michael@0:   .SUBSPA $CODE$,QUAD=0,ALIGN=4,ACCESS=0x2c,CODE_ONLY,SORT=24
michael@0: XPTC_InvokeByIndex
michael@0:   .PROC
michael@0:   .CALLINFO CALLER,FRAME=72,ENTRY_GR=%r3,SAVE_RP,SAVE_SP,ARGS_SAVED,ALLOCA_FRAME
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:   .ENTRY
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:         B,L     .+8,%r2
michael@0:         ADDIL   L'invoke_count_bytes-$PIC_pcrel$1+4,%r2,%r1
michael@0:         LDO     R'invoke_count_bytes-$PIC_pcrel$2+8(%r1),%r1
michael@0: $PIC_pcrel$1
michael@0:         LDSID   (%r1),%r31
michael@0: $PIC_pcrel$2
michael@0:         MTSP    %r31,%sr0
michael@0:         .CALL   ARGW0=GR,ARGW1=GR,ARGW2=GR ;in=24,25,26;out=28
michael@0:         BE,L    0(%sr0,%r1),%r31
michael@0:         COPY    %r31,%r2
michael@0: 
michael@0:         CMPIB,>=        0,%r28, .+76
michael@0:         COPY    %r30,%r3            ; copy stack ptr to saved stack ptr
michael@0:         ADD     %r30,%r28,%r30      ; extend stack frame
michael@0:         LDW     -4(%r3),%r28        ; move frame
michael@0:         STW     %r28,-4(%r30)
michael@0:         LDW     -8(%r3),%r28
michael@0:         STW     %r28,-8(%r30)
michael@0:         LDW     -12(%r3),%r28
michael@0:         STW     %r28,-12(%r30)
michael@0:         LDW     -16(%r3),%r28
michael@0:         STW     %r28,-16(%r30)
michael@0:         LDW     -20(%r3),%r28
michael@0:         STW     %r28,-20(%r30)
michael@0:         LDW     -24(%r3),%r28
michael@0:         STW     %r28,-24(%r30)
michael@0:         LDW     -28(%r3),%r28
michael@0:         STW     %r28,-28(%r30)
michael@0:         LDW     -32(%r3),%r28
michael@0:         STW     %r28,-32(%r30)
michael@0: 
michael@0:         LDO     -40(%r30),%r26         ; load copy address
michael@0:         LDW     -44-framesz(%r3),%r25  ; load rest of 2 arguments
michael@0:         LDW     -48-framesz(%r3),%r24  ;
michael@0: 
michael@0:         LDW     -32(%r30),%r19 ; shared lib call destroys r19; reload
michael@0:         B,L     .+8,%r2
michael@0:         ADDIL   L'invoke_copy_to_stack-$PIC_pcrel$3+4,%r2,%r1
michael@0:         LDO     R'invoke_copy_to_stack-$PIC_pcrel$4+8(%r1),%r1
michael@0: $PIC_pcrel$3
michael@0:         LDSID   (%r1),%r31
michael@0: $PIC_pcrel$4
michael@0:         MTSP    %r31,%sr0
michael@0:         .CALL   ARGW0=GR,ARGW1=GR,ARGW2=GR ;in=24,25,26
michael@0:         BE,L    0(%sr0,%r1),%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:         LDO     16(%r20),%r20   ; offset vtable by 16 bytes (g++: 8, aCC: 16)
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:         B,L     .+8,%r2
michael@0:         ADDIL   L'$$dyncall_external-$PIC_pcrel$5+4,%r2,%r1
michael@0:         LDO     R'$$dyncall_external-$PIC_pcrel$6+8(%r1),%r1
michael@0: $PIC_pcrel$5
michael@0:         LDSID   (%r1),%r31
michael@0: $PIC_pcrel$6
michael@0:         MTSP    %r31,%sr0
michael@0:         .CALL ARGW0=GR,ARGW1=GR,ARGW2=GR,ARGW3=GR,RTNVAL=GR
michael@0: ;in=22-26;out=28;
michael@0:         BE,L    0(%sr0,%r1),%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:         BVE             (%rp)
michael@0:   .EXIT
michael@0:         LDW,MB       -128(%sp),%r3
michael@0: 
michael@0:   .PROCEND  ;in=23,24,25,26;
michael@0: 
michael@0:   .ALIGN  8
michael@0:   .SPACE  $TEXT$
michael@0:   .SUBSPA $CODE$
michael@0:   .IMPORT $$dyncall_external,MILLICODE
michael@0:   .IMPORT invoke_count_bytes,CODE
michael@0:   .IMPORT invoke_copy_to_stack,CODE
michael@0:   .EXPORT XPTC_InvokeByIndex,ENTRY,PRIV_LEV=3,ARGW0=GR,ARGW1=GR,ARGW2=GR,ARGW3=GR,RTNVAL=GR,LONG_RETURN
michael@0:   .END
michael@0: