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authorBastian Koppelmann <kbastian@mail.uni-paderborn.de>2014-09-01 12:59:58 +0100
committerPeter Maydell <peter.maydell@linaro.org>2014-09-01 14:49:21 +0100
commit5de93515f995066f709f6e1af5531a36ce6766bd (patch)
tree73aa0ddf73a2ac68d3239a395ef1dcc19365b548 /target-tricore
parenta47b50db609f95edf5b2f964a7a8087f094cfcfa (diff)
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target-tricore: Add instructions of SC opcode format
Add instructions of SC opcode format. Add helper for begin interrupt service routine. Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Message-id: 1409572800-4116-14-git-send-email-kbastian@mail.uni-paderborn.de Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-tricore')
-rw-r--r--target-tricore/helper.h1
-rw-r--r--target-tricore/op_helper.c59
-rw-r--r--target-tricore/translate.c48
3 files changed, 108 insertions, 0 deletions
diff --git a/target-tricore/helper.h b/target-tricore/helper.h
index adf5b26..3c73234 100644
--- a/target-tricore/helper.h
+++ b/target-tricore/helper.h
@@ -21,3 +21,4 @@ DEF_HELPER_3(sub_ssov, i32, env, i32, i32)
/* CSA */
DEF_HELPER_2(call, void, env, i32)
DEF_HELPER_1(ret, void, env)
+DEF_HELPER_2(bisr, void, env, i32)
diff --git a/target-tricore/op_helper.c b/target-tricore/op_helper.c
index 990d463..bb55a49 100644
--- a/target-tricore/op_helper.c
+++ b/target-tricore/op_helper.c
@@ -122,6 +122,28 @@ static void save_context_upper(CPUTriCoreState *env, int ea,
}
+static void save_context_lower(CPUTriCoreState *env, int ea,
+ target_ulong *new_FCX)
+{
+ *new_FCX = cpu_ldl_data(env, ea);
+ cpu_stl_data(env, ea, env->PCXI);
+ cpu_stl_data(env, ea+4, env->PSW);
+ cpu_stl_data(env, ea+8, env->gpr_a[2]);
+ cpu_stl_data(env, ea+12, env->gpr_a[3]);
+ cpu_stl_data(env, ea+16, env->gpr_d[0]);
+ cpu_stl_data(env, ea+20, env->gpr_d[1]);
+ cpu_stl_data(env, ea+24, env->gpr_d[2]);
+ cpu_stl_data(env, ea+28, env->gpr_d[3]);
+ cpu_stl_data(env, ea+32, env->gpr_a[4]);
+ cpu_stl_data(env, ea+36, env->gpr_a[5]);
+ cpu_stl_data(env, ea+40, env->gpr_a[6]);
+ cpu_stl_data(env, ea+44, env->gpr_a[7]);
+ cpu_stl_data(env, ea+48, env->gpr_d[4]);
+ cpu_stl_data(env, ea+52, env->gpr_d[5]);
+ cpu_stl_data(env, ea+56, env->gpr_d[6]);
+ cpu_stl_data(env, ea+60, env->gpr_d[7]);
+}
+
static void restore_context_upper(CPUTriCoreState *env, int ea,
target_ulong *new_PCXI, target_ulong *new_PSW)
{
@@ -243,6 +265,43 @@ void helper_ret(CPUTriCoreState *env)
}
}
+void helper_bisr(CPUTriCoreState *env, uint32_t const9)
+{
+ target_ulong tmp_FCX;
+ target_ulong ea;
+ target_ulong new_FCX;
+
+ if (env->FCX == 0) {
+ /* FCU trap */
+ }
+
+ tmp_FCX = env->FCX;
+ ea = ((env->FCX & 0xf0000) << 12) + ((env->FCX & 0xffff) << 6);
+
+ save_context_lower(env, ea, &new_FCX);
+
+ /* PCXI.PCPN = ICR.CCPN */
+ env->PCXI = (env->PCXI & 0xffffff) +
+ ((env->ICR & MASK_ICR_CCPN) << 24);
+ /* PCXI.PIE = ICR.IE */
+ env->PCXI = ((env->PCXI & ~MASK_PCXI_PIE) +
+ ((env->ICR & MASK_ICR_IE) << 15));
+ /* PCXI.UL = 0 */
+ env->PCXI &= ~(MASK_PCXI_UL);
+ /* PCXI[19: 0] = FCX[19: 0] */
+ env->PCXI = (env->PCXI & 0xfff00000) + (env->FCX & 0xfffff);
+ /* FXC[19: 0] = new_FCX[19: 0] */
+ env->FCX = (env->FCX & 0xfff00000) + (new_FCX & 0xfffff);
+ /* ICR.IE = 1 */
+ env->ICR |= MASK_ICR_IE;
+
+ env->ICR |= const9; /* ICR.CCPN = const9[7: 0];*/
+
+ if (tmp_FCX == env->LCX) {
+ /* FCD trap */
+ }
+}
+
static inline void QEMU_NORETURN do_raise_exception_err(CPUTriCoreState *env,
uint32_t exception,
int error_code,
diff --git a/target-tricore/translate.c b/target-tricore/translate.c
index 74db70d..5298712 100644
--- a/target-tricore/translate.c
+++ b/target-tricore/translate.c
@@ -680,6 +680,42 @@ static void decode_ssr_opc(DisasContext *ctx, int op1)
}
}
+static void decode_sc_opc(DisasContext *ctx, int op1)
+{
+ int32_t const16;
+
+ const16 = MASK_OP_SC_CONST8(ctx->opcode);
+
+ switch (op1) {
+ case OPC1_16_SC_AND:
+ tcg_gen_andi_tl(cpu_gpr_d[15], cpu_gpr_d[15], const16);
+ break;
+ case OPC1_16_SC_BISR:
+ gen_helper_1arg(bisr, const16 & 0xff);
+ break;
+ case OPC1_16_SC_LD_A:
+ gen_offset_ld(ctx, cpu_gpr_a[15], cpu_gpr_a[10], const16 * 4, MO_LESL);
+ break;
+ case OPC1_16_SC_LD_W:
+ gen_offset_ld(ctx, cpu_gpr_d[15], cpu_gpr_a[10], const16 * 4, MO_LESL);
+ break;
+ case OPC1_16_SC_MOV:
+ tcg_gen_movi_tl(cpu_gpr_d[15], const16);
+ break;
+ case OPC1_16_SC_OR:
+ tcg_gen_ori_tl(cpu_gpr_d[15], cpu_gpr_d[15], const16);
+ break;
+ case OPC1_16_SC_ST_A:
+ gen_offset_st(ctx, cpu_gpr_a[15], cpu_gpr_a[10], const16 * 4, MO_LESL);
+ break;
+ case OPC1_16_SC_ST_W:
+ gen_offset_st(ctx, cpu_gpr_d[15], cpu_gpr_a[10], const16 * 4, MO_LESL);
+ break;
+ case OPC1_16_SC_SUB_A:
+ tcg_gen_subi_tl(cpu_gpr_a[10], cpu_gpr_a[10], const16);
+ break;
+ }
+}
static void decode_16Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
{
int op1;
@@ -816,6 +852,18 @@ static void decode_16Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
address = MASK_OP_SBR_DISP4(ctx->opcode);
gen_compute_branch(ctx, op1, r1, 0, 0, address);
break;
+/* SC-format */
+ case OPC1_16_SC_AND:
+ case OPC1_16_SC_BISR:
+ case OPC1_16_SC_LD_A:
+ case OPC1_16_SC_LD_W:
+ case OPC1_16_SC_MOV:
+ case OPC1_16_SC_OR:
+ case OPC1_16_SC_ST_A:
+ case OPC1_16_SC_ST_W:
+ case OPC1_16_SC_SUB_A:
+ decode_sc_opc(ctx, op1);
+ break;
}
}