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target-tricore: Add instructions of RRRR opcode format 

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
This commit is contained in:
Bastian Koppelmann 2015-02-25 12:03:18 +00:00
parent 068fac77c8
commit 4d108fe33a
1 changed files with 56 additions and 0 deletions
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56
target-tricore/translate.c
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@ -7583,6 +7583,59 @@ static void decode_rrr1_msubad_h(CPUTriCoreState *env, DisasContext *ctx)
} }
} }
/* RRRR format */
static void decode_rrrr_extract_insert(CPUTriCoreState *env, DisasContext *ctx)
{
uint32_t op2;
int r1, r2, r3, r4;
TCGv tmp_width, tmp_pos;
r1 = MASK_OP_RRRR_S1(ctx->opcode);
r2 = MASK_OP_RRRR_S2(ctx->opcode);
r3 = MASK_OP_RRRR_S3(ctx->opcode);
r4 = MASK_OP_RRRR_D(ctx->opcode);
op2 = MASK_OP_RRRR_OP2(ctx->opcode);
tmp_pos = tcg_temp_new();
tmp_width = tcg_temp_new();
switch (op2) {
case OPC2_32_RRRR_DEXTR:
tcg_gen_andi_tl(tmp_pos, cpu_gpr_d[r3], 0x1f);
if (r1 == r2) {
tcg_gen_rotl_tl(cpu_gpr_d[r4], cpu_gpr_d[r1], tmp_pos);
} else {
tcg_gen_shl_tl(tmp_width, cpu_gpr_d[r1], tmp_pos);
tcg_gen_subfi_tl(tmp_pos, 32, tmp_pos);
tcg_gen_shr_tl(tmp_pos, cpu_gpr_d[r2], tmp_pos);
tcg_gen_or_tl(cpu_gpr_d[r4], tmp_width, tmp_pos);
}
break;
case OPC2_32_RRRR_EXTR:
case OPC2_32_RRRR_EXTR_U:
tcg_gen_andi_tl(tmp_width, cpu_gpr_d[r3+1], 0x1f);
tcg_gen_andi_tl(tmp_pos, cpu_gpr_d[r3], 0x1f);
tcg_gen_add_tl(tmp_pos, tmp_pos, tmp_width);
tcg_gen_subfi_tl(tmp_pos, 32, tmp_pos);
tcg_gen_shl_tl(cpu_gpr_d[r4], cpu_gpr_d[r1], tmp_pos);
tcg_gen_subfi_tl(tmp_width, 32, tmp_width);
if (op2 == OPC2_32_RRRR_EXTR) {
tcg_gen_sar_tl(cpu_gpr_d[r4], cpu_gpr_d[r4], tmp_width);
} else {
tcg_gen_shr_tl(cpu_gpr_d[r4], cpu_gpr_d[r4], tmp_width);
}
break;
case OPC2_32_RRRR_INSERT:
tcg_gen_andi_tl(tmp_width, cpu_gpr_d[r3+1], 0x1f);
tcg_gen_andi_tl(tmp_pos, cpu_gpr_d[r3], 0x1f);
gen_insert(cpu_gpr_d[r4], cpu_gpr_d[r1], cpu_gpr_d[r2], tmp_width,
tmp_pos);
break;
}
tcg_temp_free(tmp_pos);
tcg_temp_free(tmp_width);
}
static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx) static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
{ {
int op1; int op1;
@ -7898,6 +7951,9 @@ static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
case OPCM_32_RRR1_MSUBAD_H: case OPCM_32_RRR1_MSUBAD_H:
decode_rrr1_msubad_h(env, ctx); decode_rrr1_msubad_h(env, ctx);
break; break;
/* RRRR format */
case OPCM_32_RRRR_EXTRACT_INSERT:
decode_rrrr_extract_insert(env, ctx);
} }
} }