Commit 70b02262 authored by Bastian Koppelmann's avatar Bastian Koppelmann Committed by Peter Maydell
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target-tricore: Add instructions of SBC and SBRN opcode format 



Add instructions of SBC and SBRN opcode format.

Signed-off-by: default avatarBastian Koppelmann <kbastian@mail.uni-paderborn.de>

Reviewed-by: default avatarRichard Henderson <rth@twiddle.net>
Message-id: 1409572800-4116-12-git-send-email-kbastian@mail.uni-paderborn.de
Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
parent 9a31922b

target-tricore/translate.c

+36 −0
Original line number Diff line number Diff line
@@ -391,6 +391,8 @@ static inline void gen_branch_condi(DisasContext *ctx, TCGCond cond, TCGv r1, 
static void gen_compute_branch(DisasContext *ctx, uint32_t opc, int r1,

                               int r2 , int32_t constant , int32_t offset)

{

    TCGv temp;



    switch (opc) {

/* SB-format jumps */

    case OPC1_16_SB_J:
@@ -407,6 +409,26 @@ static void gen_compute_branch(DisasContext *ctx, uint32_t opc, int r1, 
    case OPC1_16_SB_JNZ:

        gen_branch_condi(ctx, TCG_COND_NE, cpu_gpr_d[15], 0, offset);

        break;

/* SBC-format jumps */

    case OPC1_16_SBC_JEQ:

        gen_branch_condi(ctx, TCG_COND_EQ, cpu_gpr_d[15], constant, offset);

        break;

    case OPC1_16_SBC_JNE:

        gen_branch_condi(ctx, TCG_COND_NE, cpu_gpr_d[15], constant, offset);

        break;

/* SBRN-format jumps */

    case OPC1_16_SBRN_JZ_T:

        temp = tcg_temp_new();

        tcg_gen_andi_tl(temp, cpu_gpr_d[15], 0x1u << constant);

        gen_branch_condi(ctx, TCG_COND_EQ, temp, 0, offset);

        tcg_temp_free(temp);

        break;

    case OPC1_16_SBRN_JNZ_T:

        temp = tcg_temp_new();

        tcg_gen_andi_tl(temp, cpu_gpr_d[15], 0x1u << constant);

        gen_branch_condi(ctx, TCG_COND_NE, temp, 0, offset);

        tcg_temp_free(temp);

        break;

    default:

            printf("Branch Error at %x\n", ctx->pc);

    }
@@ -716,6 +738,20 @@ static void decode_16Bit_opc(CPUTriCoreState *env, DisasContext *ctx) 
        address = MASK_OP_SB_DISP8_SEXT(ctx->opcode);

        gen_compute_branch(ctx, op1, 0, 0, 0, address);

        break;

/* SBC-format */

    case OPC1_16_SBC_JEQ:

    case OPC1_16_SBC_JNE:

        address = MASK_OP_SBC_DISP4(ctx->opcode);

        const16 = MASK_OP_SBC_CONST4_SEXT(ctx->opcode);

        gen_compute_branch(ctx, op1, 0, 0, const16, address);

        break;

/* SBRN-format */

    case OPC1_16_SBRN_JNZ_T:

    case OPC1_16_SBRN_JZ_T:

        address = MASK_OP_SBRN_DISP4(ctx->opcode);

        const16 = MASK_OP_SBRN_N(ctx->opcode);

        gen_compute_branch(ctx, op1, 0, 0, const16, address);

        break;

    }

}