Commit 3398b742 authored by Nikunj A Dadhania's avatar Nikunj A Dadhania Committed by David Gibson
Browse files

target-ppc: Add xxinsertw instruction 



xxinsertw: VSX Vector Insert Word

Signed-off-by: default avatarNikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
parent 8ad901e5

target/ppc/helper.h

+1 −0
Original line number Diff line number Diff line
@@ -536,6 +536,7 @@ DEF_HELPER_2(xvrspiz, void, env, i32) 
DEF_HELPER_2(xxperm, void, env, i32)

DEF_HELPER_2(xxpermr, void, env, i32)

DEF_HELPER_4(xxextractuw, void, env, tl, tl, i32)

DEF_HELPER_4(xxinsertw, void, env, tl, tl, i32)



DEF_HELPER_2(efscfsi, i32, env, i32)

DEF_HELPER_2(efscfui, i32, env, i32)

target/ppc/int_helper.c

+25 −0
Original line number Diff line number Diff line
@@ -2027,6 +2027,31 @@ void helper_xxextractuw(CPUPPCState *env, target_ulong xtn, 
    putVSR(xtn, &xt, env);

}



void helper_xxinsertw(CPUPPCState *env, target_ulong xtn,

                      target_ulong xbn, uint32_t index)

{

    ppc_vsr_t xt, xb;

    size_t es = sizeof(uint32_t);

    int ins_index, i = 0;



    getVSR(xbn, &xb, env);

    getVSR(xtn, &xt, env);



#if defined(HOST_WORDS_BIGENDIAN)

    ins_index = index;

    for (i = 0; i < es && ins_index < 16; i++, ins_index++) {

        xt.u8[ins_index] = xb.u8[8 - es + i];

    }

#else

    ins_index = 15 - index;

    for (i = es - 1; i >= 0 && ins_index >= 0; i--, ins_index--) {

        xt.u8[ins_index] = xb.u8[8 + i];

    }

#endif



    putVSR(xtn, &xt, env);

}



#define VEXT_SIGNED(name, element, mask, cast, recast)              \

void helper_##name(ppc_avr_t *r, ppc_avr_t *b)                      \

{                                                                   \

target/ppc/translate/vsx-impl.inc.c

+3 −2
Original line number Diff line number Diff line
@@ -1180,7 +1180,7 @@ static void gen_xxsldwi(DisasContext *ctx) 
    tcg_temp_free_i64(xtl);

}



#define VSX_EXTRACT(name)                                       \

#define VSX_EXTRACT_INSERT(name)                                \

static void gen_##name(DisasContext *ctx)                       \

{                                                               \

    TCGv xt, xb;                                                \
@@ -1208,7 +1208,8 @@ static void gen_##name(DisasContext *ctx) \ 
    tcg_temp_free_i32(t0);                                      \

}



VSX_EXTRACT(xxextractuw)

VSX_EXTRACT_INSERT(xxextractuw)

VSX_EXTRACT_INSERT(xxinsertw)



#undef GEN_XX2FORM

#undef GEN_XX3FORM

target/ppc/translate/vsx-ops.inc.c

+1 −0
Original line number Diff line number Diff line
@@ -285,6 +285,7 @@ GEN_XX2FORM(xxspltw, 0x08, 0x0A, PPC2_VSX), 
GEN_XX1FORM(xxspltib, 0x08, 0x0B, PPC2_ISA300),

GEN_XX3FORM_DM(xxsldwi, 0x08, 0x00),

GEN_XX2FORM_EXT(xxextractuw, 0x0A, 0x0A, PPC2_ISA300),

GEN_XX2FORM_EXT(xxinsertw, 0x0A, 0x0B, PPC2_ISA300),



#define GEN_XXSEL_ROW(opc3) \

GEN_HANDLER2_E(xxsel, "xxsel", 0x3C, 0x18, opc3, 0, PPC_NONE, PPC2_VSX), \