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cris: Fix NMI-flag handling on crisv10. 

- The M-flag is encoded in different bits on cris v10 and cris v32.

Signed-off-by: Lars Persson <larper@axis.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
This commit is contained in:
Lars Persson 2012-06-14 16:23:55 +02:00 committed by Edgar E. Iglesias
parent da9fa17ee9
commit 8219314be6
4 changed files with 18 additions and 10 deletions
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17
cpu-exec.c
View File

@ -467,11 +467,18 @@ int cpu_exec(CPUArchState *env)
do_interrupt(env);
next_tb = 0;
}
if (interrupt_request & CPU_INTERRUPT_NMI
&& (env->pregs[PR_CCS] & M_FLAG)) {
env->exception_index = EXCP_NMI;
do_interrupt(env);
next_tb = 0;
if (interrupt_request & CPU_INTERRUPT_NMI) {
unsigned int m_flag_archval;
if (env->pregs[PR_VR] < 32) {
m_flag_archval = M_FLAG_V10;
} else {
m_flag_archval = M_FLAG_V32;
}
if ((env->pregs[PR_CCS] & m_flag_archval)) {
env->exception_index = EXCP_NMI;
do_interrupt(env);
next_tb = 0;
}
}
#elif defined(TARGET_M68K)
if (interrupt_request & CPU_INTERRUPT_HARD

3
target-cris/cpu.h
View File

@ -69,13 +69,14 @@
/* CPU flags. */
#define Q_FLAG 0x80000000
#define M_FLAG 0x40000000
#define M_FLAG_V32 0x40000000
#define PFIX_FLAG 0x800 /* CRISv10 Only. */
#define F_FLAG_V10 0x400
#define P_FLAG_V10 0x200
#define S_FLAG 0x200
#define R_FLAG 0x100
#define P_FLAG 0x80
#define M_FLAG_V10 0x80
#define U_FLAG 0x40
#define I_FLAG 0x20
#define X_FLAG 0x10

4
target-cris/helper.c
View File

@ -127,7 +127,7 @@ static void do_interruptv10(CPUCRISState *env)
case EXCP_NMI:
/* NMI is hardwired to vector zero. */
ex_vec = 0;
env->pregs[PR_CCS] &= ~M_FLAG;
env->pregs[PR_CCS] &= ~M_FLAG_V10;
env->pregs[PRV10_BRP] = env->pc;
break;
@ -185,7 +185,7 @@ void do_interrupt(CPUCRISState *env)
case EXCP_NMI:
/* NMI is hardwired to vector zero. */
ex_vec = 0;
env->pregs[PR_CCS] &= ~M_FLAG;
env->pregs[PR_CCS] &= ~M_FLAG_V32;
env->pregs[PR_NRP] = env->pc;
break;

4
target-cris/op_helper.c
View File

@ -247,8 +247,8 @@ void helper_rfn(void)
if (!rflag)
env->pregs[PR_CCS] |= P_FLAG;
/* Always set the M flag. */
env->pregs[PR_CCS] |= M_FLAG;
/* Always set the M flag. */
env->pregs[PR_CCS] |= M_FLAG_V32;
}
uint32_t helper_lz(uint32_t t0)