Commit f718b0bb authored by Bastian Koppelmann's avatar Bastian Koppelmann
Browse files

target-tricore: Add instructions of B opcode format 



Add instructions of B opcode format.

Signed-off-by: default avatarBastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: default avatarRichard Henderson <rth@twiddle.net>
parent 59543d4e

target-tricore/translate.c

+27 −0
Original line number Diff line number Diff line
@@ -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;

    }

}