Commit 8219314b authored by Lars Persson's avatar Lars Persson Committed by Edgar E. Iglesias
Browse files

cris: Fix NMI-flag handling on crisv10. 



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

Signed-off-by: default avatarLars Persson <larper@axis.com>
Signed-off-by: default avatarEdgar E. Iglesias <edgar.iglesias@gmail.com>
parent da9fa17e

cpu-exec.c

+12 −5
Original line number Diff line number Diff line
@@ -467,12 +467,19 @@ int cpu_exec(CPUArchState *env) 
                        do_interrupt(env);

                        next_tb = 0;

                    }

                    if (interrupt_request & CPU_INTERRUPT_NMI

                        && (env->pregs[PR_CCS] & M_FLAG)) {

                    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

                        && ((env->sr & SR_I) >> SR_I_SHIFT)

target-cris/cpu.h

+2 −1
Original line number Diff line number Diff line
@@ -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

target-cris/helper.c

+2 −2
Original line number Diff line number Diff line
@@ -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;

target-cris/op_helper.c

+2 −2
Original line number Diff line number Diff line
@@ -248,7 +248,7 @@ void helper_rfn(void) 
		env->pregs[PR_CCS] |= P_FLAG;



	/* Always set the M flag.  */

    env->pregs[PR_CCS] |= M_FLAG;

	env->pregs[PR_CCS] |= M_FLAG_V32;

}



uint32_t helper_lz(uint32_t t0)