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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: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>

Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-id: 1409572800-4116-12-git-send-email-kbastian@mail.uni-paderborn.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Bastian Koppelmann 2014-09-01 12:59:56 +01:00 committed by Peter Maydell
parent 9a31922b08
commit 70b0226250
1 changed files with 36 additions and 0 deletions
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36
target-tricore/translate.c
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@ -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;
}
}