#define EXCP_FIQ 6
#define EXCP_BKPT 7
#define EXCP_EXCEPTION_EXIT 8 /* Return from v7M exception. */
+#define EXCP_KERNEL_TRAP 9 /* Jumped to kernel code page. */
#define ARMV7M_EXCP_RESET 1
#define ARMV7M_EXCP_NMI 2
typedef uint32_t ARMReadCPFunc(void *opaque, int cp_info,
int dstreg, int operand);
+struct arm_boot_info;
+
#define NB_MMU_MODES 2
/* We currently assume float and double are IEEE single and double
/* cpsr flag cache for faster execution */
uint32_t CF; /* 0 or 1 */
uint32_t VF; /* V is the bit 31. All other bits are undefined */
- uint32_t NZF; /* N is bit 31. Z is computed from NZF */
+ uint32_t NF; /* N is bit 31. All other bits are undefined. */
+ uint32_t ZF; /* Z set if zero. */
uint32_t QF; /* 0 or 1 */
uint32_t GE; /* cpsr[19:16] */
- int thumb; /* cprs[5]. 0 = arm mode, 1 = thumb mode. */
+ uint32_t thumb; /* cpsr[5]. 0 = arm mode, 1 = thumb mode. */
uint32_t condexec_bits; /* IT bits. cpsr[15:10,26:25]. */
/* System control coprocessor (cp15) */
int (*get_irq_vector)(struct CPUARMState *);
void *irq_opaque;
- /* exception/interrupt handling */
- jmp_buf jmp_env;
- int exception_index;
- int interrupt_request;
- int user_mode_only;
- int halted;
-
/* VFP coprocessor state. */
struct {
float64 regs[32];
int vec_len;
int vec_stride;
- /* Temporary variables if we don't have spare fp regs. */
- float32 tmp0s, tmp1s;
- float64 tmp0d, tmp1d;
/* scratch space when Tn are not sufficient. */
uint32_t scratch[8];
CPU_COMMON
/* These fields after the common ones so they are preserved on reset. */
- int ram_size;
- const char *kernel_filename;
- const char *kernel_cmdline;
- const char *initrd_filename;
- int board_id;
- target_phys_addr_t loader_start;
+ struct arm_boot_info *boot_info;
} CPUARMState;
CPUARMState *cpu_arm_init(const char *cpu_model);
+void arm_translate_init(void);
int cpu_arm_exec(CPUARMState *s);
void cpu_arm_close(CPUARMState *s);
void do_interrupt(CPUARMState *);
void cpu_lock(void);
void cpu_unlock(void);
+static inline void cpu_set_tls(CPUARMState *env, target_ulong newtls)
+{
+ env->cp15.c13_tls2 = newtls;
+}
#define CPSR_M (0x1f)
#define CPSR_T (1 << 5)
#define CPSR_EXEC (CPSR_T | CPSR_IT | CPSR_J)
/* Return the current CPSR value. */
-static inline uint32_t cpsr_read(CPUARMState *env)
-{
- int ZF;
- ZF = (env->NZF == 0);
- return env->uncached_cpsr | (env->NZF & 0x80000000) | (ZF << 30) |
- (env->CF << 29) | ((env->VF & 0x80000000) >> 3) | (env->QF << 27)
- | (env->thumb << 5) | ((env->condexec_bits & 3) << 25)
- | ((env->condexec_bits & 0xfc) << 8)
- | (env->GE << 16);
-}
+uint32_t cpsr_read(CPUARMState *env);
+/* Set the CPSR. Note that some bits of mask must be all-set or all-clear. */
+void cpsr_write(CPUARMState *env, uint32_t val, uint32_t mask);
/* Return the current xPSR value. */
static inline uint32_t xpsr_read(CPUARMState *env)
{
int ZF;
- ZF = (env->NZF == 0);
- return (env->NZF & 0x80000000) | (ZF << 30)
+ ZF = (env->ZF == 0);
+ return (env->NF & 0x80000000) | (ZF << 30)
| (env->CF << 29) | ((env->VF & 0x80000000) >> 3) | (env->QF << 27)
| (env->thumb << 24) | ((env->condexec_bits & 3) << 25)
| ((env->condexec_bits & 0xfc) << 8)
| env->v7m.exception;
}
-/* Set the CPSR. Note that some bits of mask must be all-set or all-clear. */
-static inline void cpsr_write(CPUARMState *env, uint32_t val, uint32_t mask)
-{
- /* NOTE: N = 1 and Z = 1 cannot be stored currently */
- if (mask & CPSR_NZCV) {
- env->NZF = (val & 0xc0000000) ^ 0x40000000;
- env->CF = (val >> 29) & 1;
- env->VF = (val << 3) & 0x80000000;
- }
- if (mask & CPSR_Q)
- env->QF = ((val & CPSR_Q) != 0);
- if (mask & CPSR_T)
- env->thumb = ((val & CPSR_T) != 0);
- if (mask & CPSR_IT_0_1) {
- env->condexec_bits &= ~3;
- env->condexec_bits |= (val >> 25) & 3;
- }
- if (mask & CPSR_IT_2_7) {
- env->condexec_bits &= 3;
- env->condexec_bits |= (val >> 8) & 0xfc;
- }
- if (mask & CPSR_GE) {
- env->GE = (val >> 16) & 0xf;
- }
-
- if ((env->uncached_cpsr ^ val) & mask & CPSR_M) {
- switch_mode(env, val & CPSR_M);
- }
- mask &= ~CACHED_CPSR_BITS;
- env->uncached_cpsr = (env->uncached_cpsr & ~mask) | (val & mask);
-}
-
/* Set the xPSR. Note that some bits of mask must be all-set or all-clear. */
static inline void xpsr_write(CPUARMState *env, uint32_t val, uint32_t mask)
{
- /* NOTE: N = 1 and Z = 1 cannot be stored currently */
if (mask & CPSR_NZCV) {
- env->NZF = (val & 0xc0000000) ^ 0x40000000;
+ env->ZF = (~val) & CPSR_Z;
+ env->NF = val;
env->CF = (val >> 29) & 1;
env->VF = (val << 3) & 0x80000000;
}
#define ARM_CPUID_PXA270_C0 0x69054114
#define ARM_CPUID_PXA270_C5 0x69054117
#define ARM_CPUID_ARM1136 0x4117b363
+#define ARM_CPUID_ARM1136_R2 0x4107b362
#define ARM_CPUID_ARM11MPCORE 0x410fb022
#define ARM_CPUID_CORTEXA8 0x410fc080
#define ARM_CPUID_CORTEXM3 0x410fc231
#define cpu_signal_handler cpu_arm_signal_handler
#define cpu_list arm_cpu_list
-#define ARM_CPU_SAVE_VERSION 1
+#define CPU_SAVE_VERSION 1
/* MMU modes definitions */
#define MMU_MODE0_SUFFIX _kernel
return (env->uncached_cpsr & CPSR_M) == ARM_CPU_MODE_USR ? 1 : 0;
}
+#if defined(CONFIG_USER_ONLY)
+static inline void cpu_clone_regs(CPUState *env, target_ulong newsp)
+{
+ if (newsp)
+ env->regs[13] = newsp;
+ env->regs[0] = 0;
+}
+#endif
+
+#define CPU_PC_FROM_TB(env, tb) env->regs[15] = tb->pc
+
#include "cpu-all.h"
#endif
projects / qemu / blobdiff