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authorBastian Koppelmann <kbastian@mail.uni-paderborn.de>2014-09-26 20:28:02 +0100
committerBastian Koppelmann <kbastian@mail.uni-paderborn.de>2014-10-20 12:25:07 +0100
commitf718b0bbfac8c64d7c989000041be6275745989a (patch)
treef9166071c0bdc215255e591107f3a587cf8c92dc /target-tricore
parent59543d4ee1cef54dd1af7cae211f3e95e7287ba4 (diff)
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>
Diffstat (limited to 'target-tricore')
-rw-r--r--target-tricore/translate.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/target-tricore/translate.c b/target-tricore/translate.c
index fc89a4357a..830bcd01e0 100644
--- a/target-tricore/translate.c
+++ b/target-tricore/translate.c
@@ -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;
}
}