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target-tricore: Add instructions of B opcode format 

Add instructions of B opcode format.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Bastian Koppelmann 2014-09-26 20:28:02 +01:00
parent 59543d4ee1
commit f718b0bbfa
1 changed files with 27 additions and 0 deletions
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27
target-tricore/translate.c
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@ -116,6 +116,8 @@ void tricore_cpu_dump_state(CPUState *cs, FILE *f,
} while (0)
#define EA_ABS_FORMAT(con) (((con & 0x3C000) << 14) + (con & 0x3FFF))
#define EA_B_ABSOLUT(con) (((offset & 0xf00000) << 8) | \
((offset & 0x0fffff) << 1))
/* Functions for load/save to/from memory */
@ -492,6 +494,7 @@ static void gen_compute_branch(DisasContext *ctx, uint32_t opc, int r1,
case OPC1_32_B_J:
gen_goto_tb(ctx, 0, ctx->pc + offset * 2);
break;
case OPC1_32_B_CALL:
case OPC1_16_SB_CALL:
gen_helper_1arg(call, ctx->next_pc);
gen_goto_tb(ctx, 0, ctx->pc + offset * 2);
@ -567,6 +570,20 @@ static void gen_compute_branch(DisasContext *ctx, uint32_t opc, int r1,
gen_helper_ret(cpu_env);
tcg_gen_exit_tb(0);
break;
/* B-format */
case OPC1_32_B_CALLA:
gen_helper_1arg(call, ctx->next_pc);
gen_goto_tb(ctx, 0, EA_B_ABSOLUT(offset));
break;
case OPC1_32_B_JLA:
tcg_gen_movi_tl(cpu_gpr_a[11], ctx->next_pc);
case OPC1_32_B_JA:
gen_goto_tb(ctx, 0, EA_B_ABSOLUT(offset));
break;
case OPC1_32_B_JL:
tcg_gen_movi_tl(cpu_gpr_a[11], ctx->next_pc);
gen_goto_tb(ctx, 0, ctx->pc + offset * 2);
break;
default:
printf("Branch Error at %x\n", ctx->pc);
}
@ -1403,6 +1420,16 @@ static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
tcg_temp_free(temp);
tcg_temp_free(temp2);
break;
/* B-format */
case OPC1_32_B_CALL:
case OPC1_32_B_CALLA:
case OPC1_32_B_J:
case OPC1_32_B_JA:
case OPC1_32_B_JL:
case OPC1_32_B_JLA:
address = MASK_OP_B_DISP24(ctx->opcode);
gen_compute_branch(ctx, op1, 0, 0, 0, address);
break;
}
}