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[Qemu-devel] [PATCH] microblaze: Add internal base vectors reg
From: |
edgar . iglesias |
Subject: |
[Qemu-devel] [PATCH] microblaze: Add internal base vectors reg |
Date: |
Tue, 23 Apr 2013 17:45:35 +0200 |
From: "Edgar E. Iglesias" <address@hidden>
Configurable at CPU synthesis/instantiation.
Signed-off-by: Edgar E. Iglesias <address@hidden>
---
target-microblaze/cpu.h | 1 +
target-microblaze/helper.c | 8 ++++----
2 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/target-microblaze/cpu.h b/target-microblaze/cpu.h
index 1813939..dc07595 100644
--- a/target-microblaze/cpu.h
+++ b/target-microblaze/cpu.h
@@ -235,6 +235,7 @@ struct CPUMBState {
uint32_t btaken;
uint32_t btarget;
uint32_t bimm;
+ uint32_t base_vectors;
uint32_t imm;
uint32_t regs[33];
diff --git a/target-microblaze/helper.c b/target-microblaze/helper.c
index a0416d0..4246ce8 100644
--- a/target-microblaze/helper.c
+++ b/target-microblaze/helper.c
@@ -152,7 +152,7 @@ void mb_cpu_do_interrupt(CPUState *cs)
env->sregs[SR_ESR], env->iflags);
log_cpu_state_mask(CPU_LOG_INT, env, 0);
env->iflags &= ~(IMM_FLAG | D_FLAG);
- env->sregs[SR_PC] = 0x20;
+ env->sregs[SR_PC] = env->base_vectors + 0x20;
break;
case EXCP_MMU:
@@ -192,7 +192,7 @@ void mb_cpu_do_interrupt(CPUState *cs)
env->sregs[SR_PC], env->sregs[SR_EAR], env->iflags);
log_cpu_state_mask(CPU_LOG_INT, env, 0);
env->iflags &= ~(IMM_FLAG | D_FLAG);
- env->sregs[SR_PC] = 0x20;
+ env->sregs[SR_PC] = env->base_vectors + 0x20;
break;
case EXCP_IRQ:
@@ -233,7 +233,7 @@ void mb_cpu_do_interrupt(CPUState *cs)
env->sregs[SR_MSR] |= t;
env->regs[14] = env->sregs[SR_PC];
- env->sregs[SR_PC] = 0x10;
+ env->sregs[SR_PC] = env->base_vectors + 0x10;
//log_cpu_state_mask(CPU_LOG_INT, env, 0);
break;
@@ -252,7 +252,7 @@ void mb_cpu_do_interrupt(CPUState *cs)
if (env->exception_index == EXCP_HW_BREAK) {
env->regs[16] = env->sregs[SR_PC];
env->sregs[SR_MSR] |= MSR_BIP;
- env->sregs[SR_PC] = 0x18;
+ env->sregs[SR_PC] = env->base_vectors + 0x18;
} else
env->sregs[SR_PC] = env->btarget;
break;
--
1.7.10.4
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