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target-tricore: Add instructions of RRRW opcode format

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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 12:04:45 +00:00
parent 4d108fe33a
commit eb989d2545
1 changed files with 63 additions and 0 deletions
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63
target-tricore/translate.c
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@ -7636,6 +7636,65 @@ static void decode_rrrr_extract_insert(CPUTriCoreState *env, DisasContext *ctx)
tcg_temp_free(tmp_width);
}
/* RRRW format */
static void decode_rrrw_extract_insert(CPUTriCoreState *env, DisasContext *ctx)
{
uint32_t op2;
int r1, r2, r3, r4;
int32_t width;
TCGv temp, temp2;
op2 = MASK_OP_RRRW_OP2(ctx->opcode);
r1 = MASK_OP_RRRW_S1(ctx->opcode);
r2 = MASK_OP_RRRW_S2(ctx->opcode);
r3 = MASK_OP_RRRW_S3(ctx->opcode);
r4 = MASK_OP_RRRW_D(ctx->opcode);
width = MASK_OP_RRRW_WIDTH(ctx->opcode);
temp = tcg_temp_new();
switch (op2) {
case OPC2_32_RRRW_EXTR:
tcg_gen_andi_tl(temp, cpu_gpr_d[r3], 0x1f);
tcg_gen_addi_tl(temp, temp, width);
tcg_gen_subfi_tl(temp, 32, temp);
tcg_gen_shl_tl(cpu_gpr_d[r4], cpu_gpr_d[r1], temp);
tcg_gen_sari_tl(cpu_gpr_d[r4], cpu_gpr_d[r4], 32 - width);
break;
case OPC2_32_RRRW_EXTR_U:
if (width == 0) {
tcg_gen_movi_tl(cpu_gpr_d[r4], 0);
} else {
tcg_gen_andi_tl(temp, cpu_gpr_d[r3], 0x1f);
tcg_gen_shr_tl(cpu_gpr_d[r4], cpu_gpr_d[r1], temp);
tcg_gen_andi_tl(cpu_gpr_d[r4], cpu_gpr_d[r4], ~0u >> (32-width));
}
break;
case OPC2_32_RRRW_IMASK:
temp2 = tcg_temp_new();
tcg_gen_andi_tl(temp, cpu_gpr_d[r3], 0x1f);
tcg_gen_movi_tl(temp2, (1 << width) - 1);
tcg_gen_shl_tl(temp2, temp2, temp);
tcg_gen_shl_tl(cpu_gpr_d[r4], cpu_gpr_d[r2], temp);
tcg_gen_mov_tl(cpu_gpr_d[r4+1], temp2);
tcg_temp_free(temp2);
break;
case OPC2_32_RRRW_INSERT:
temp2 = tcg_temp_new();
tcg_gen_movi_tl(temp, width);
tcg_gen_andi_tl(temp2, cpu_gpr_d[r3], 0x1f);
gen_insert(cpu_gpr_d[r4], cpu_gpr_d[r1], cpu_gpr_d[r2], temp, temp2);
tcg_temp_free(temp2);
break;
}
tcg_temp_free(temp);
}
static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
{
int op1;
@ -7954,6 +8013,10 @@ static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
/* RRRR format */
case OPCM_32_RRRR_EXTRACT_INSERT:
decode_rrrr_extract_insert(env, ctx);
/* RRRW format */
case OPCM_32_RRRW_EXTRACT_INSERT:
decode_rrrw_extract_insert(env, ctx);
break;
}
}