/*
- * sparc helpers
+ * Misc Sparc helpers
*
* Copyright (c) 2003-2005 Fabrice Bellard
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
-#include <stdarg.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <inttypes.h>
#include "cpu.h"
-#include "qemu-common.h"
+#include "qemu/host-utils.h"
+#include "helper.h"
+#include "sysemu/sysemu.h"
-//#define DEBUG_MMU
-//#define DEBUG_FEATURES
-
-#ifdef DEBUG_MMU
-#define DPRINTF_MMU(fmt, ...) \
- do { printf("MMU: " fmt , ## __VA_ARGS__); } while (0)
-#else
-#define DPRINTF_MMU(fmt, ...) do {} while (0)
-#endif
-
-static int cpu_sparc_find_by_name(sparc_def_t *cpu_def, const char *cpu_model);
-
-/* Sparc MMU emulation */
-
-#if defined(CONFIG_USER_ONLY)
-
-int cpu_sparc_handle_mmu_fault(CPUState *env1, target_ulong address, int rw,
- int mmu_idx, int is_softmmu)
-{
- if (rw & 2)
- env1->exception_index = TT_TFAULT;
- else
- env1->exception_index = TT_DFAULT;
- return 1;
-}
-
-#else
-
-#ifndef TARGET_SPARC64
-/*
- * Sparc V8 Reference MMU (SRMMU)
- */
-static const int access_table[8][8] = {
- { 0, 0, 0, 0, 8, 0, 12, 12 },
- { 0, 0, 0, 0, 8, 0, 0, 0 },
- { 8, 8, 0, 0, 0, 8, 12, 12 },
- { 8, 8, 0, 0, 0, 8, 0, 0 },
- { 8, 0, 8, 0, 8, 8, 12, 12 },
- { 8, 0, 8, 0, 8, 0, 8, 0 },
- { 8, 8, 8, 0, 8, 8, 12, 12 },
- { 8, 8, 8, 0, 8, 8, 8, 0 }
-};
-
-static const int perm_table[2][8] = {
- {
- PAGE_READ,
- PAGE_READ | PAGE_WRITE,
- PAGE_READ | PAGE_EXEC,
- PAGE_READ | PAGE_WRITE | PAGE_EXEC,
- PAGE_EXEC,
- PAGE_READ | PAGE_WRITE,
- PAGE_READ | PAGE_EXEC,
- PAGE_READ | PAGE_WRITE | PAGE_EXEC
- },
- {
- PAGE_READ,
- PAGE_READ | PAGE_WRITE,
- PAGE_READ | PAGE_EXEC,
- PAGE_READ | PAGE_WRITE | PAGE_EXEC,
- PAGE_EXEC,
- PAGE_READ,
- 0,
- 0,
- }
-};
-
-static int get_physical_address(CPUState *env, target_phys_addr_t *physical,
- int *prot, int *access_index,
- target_ulong address, int rw, int mmu_idx,
- target_ulong *page_size)
+void helper_raise_exception(CPUSPARCState *env, int tt)
{
- int access_perms = 0;
- target_phys_addr_t pde_ptr;
- uint32_t pde;
- int error_code = 0, is_dirty, is_user;
- unsigned long page_offset;
-
- is_user = mmu_idx == MMU_USER_IDX;
-
- if ((env->mmuregs[0] & MMU_E) == 0) { /* MMU disabled */
- *page_size = TARGET_PAGE_SIZE;
- // Boot mode: instruction fetches are taken from PROM
- if (rw == 2 && (env->mmuregs[0] & env->def->mmu_bm)) {
- *physical = env->prom_addr | (address & 0x7ffffULL);
- *prot = PAGE_READ | PAGE_EXEC;
- return 0;
- }
- *physical = address;
- *prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
- return 0;
- }
-
- *access_index = ((rw & 1) << 2) | (rw & 2) | (is_user? 0 : 1);
- *physical = 0xffffffffffff0000ULL;
-
- /* SPARC reference MMU table walk: Context table->L1->L2->PTE */
- /* Context base + context number */
- pde_ptr = (env->mmuregs[1] << 4) + (env->mmuregs[2] << 2);
- pde = ldl_phys(pde_ptr);
-
- /* Ctx pde */
- switch (pde & PTE_ENTRYTYPE_MASK) {
- default:
- case 0: /* Invalid */
- return 1 << 2;
- case 2: /* L0 PTE, maybe should not happen? */
- case 3: /* Reserved */
- return 4 << 2;
- case 1: /* L0 PDE */
- pde_ptr = ((address >> 22) & ~3) + ((pde & ~3) << 4);
- pde = ldl_phys(pde_ptr);
-
- switch (pde & PTE_ENTRYTYPE_MASK) {
- default:
- case 0: /* Invalid */
- return (1 << 8) | (1 << 2);
- case 3: /* Reserved */
- return (1 << 8) | (4 << 2);
- case 1: /* L1 PDE */
- pde_ptr = ((address & 0xfc0000) >> 16) + ((pde & ~3) << 4);
- pde = ldl_phys(pde_ptr);
-
- switch (pde & PTE_ENTRYTYPE_MASK) {
- default:
- case 0: /* Invalid */
- return (2 << 8) | (1 << 2);
- case 3: /* Reserved */
- return (2 << 8) | (4 << 2);
- case 1: /* L2 PDE */
- pde_ptr = ((address & 0x3f000) >> 10) + ((pde & ~3) << 4);
- pde = ldl_phys(pde_ptr);
-
- switch (pde & PTE_ENTRYTYPE_MASK) {
- default:
- case 0: /* Invalid */
- return (3 << 8) | (1 << 2);
- case 1: /* PDE, should not happen */
- case 3: /* Reserved */
- return (3 << 8) | (4 << 2);
- case 2: /* L3 PTE */
- page_offset = (address & TARGET_PAGE_MASK) &
- (TARGET_PAGE_SIZE - 1);
- }
- *page_size = TARGET_PAGE_SIZE;
- break;
- case 2: /* L2 PTE */
- page_offset = address & 0x3ffff;
- *page_size = 0x40000;
- }
- break;
- case 2: /* L1 PTE */
- page_offset = address & 0xffffff;
- *page_size = 0x1000000;
- }
- }
-
- /* check access */
- access_perms = (pde & PTE_ACCESS_MASK) >> PTE_ACCESS_SHIFT;
- error_code = access_table[*access_index][access_perms];
- if (error_code && !((env->mmuregs[0] & MMU_NF) && is_user))
- return error_code;
-
- /* update page modified and dirty bits */
- is_dirty = (rw & 1) && !(pde & PG_MODIFIED_MASK);
- if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
- pde |= PG_ACCESSED_MASK;
- if (is_dirty)
- pde |= PG_MODIFIED_MASK;
- stl_phys_notdirty(pde_ptr, pde);
- }
-
- /* the page can be put in the TLB */
- *prot = perm_table[is_user][access_perms];
- if (!(pde & PG_MODIFIED_MASK)) {
- /* only set write access if already dirty... otherwise wait
- for dirty access */
- *prot &= ~PAGE_WRITE;
- }
-
- /* Even if large ptes, we map only one 4KB page in the cache to
- avoid filling it too fast */
- *physical = ((target_phys_addr_t)(pde & PTE_ADDR_MASK) << 4) + page_offset;
- return error_code;
+ env->exception_index = tt;
+ cpu_loop_exit(env);
}
-/* Perform address translation */
-int cpu_sparc_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
- int mmu_idx, int is_softmmu)
+void helper_debug(CPUSPARCState *env)
{
- target_phys_addr_t paddr;
- target_ulong vaddr;
- target_ulong page_size;
- int error_code = 0, prot, access_index;
-
- error_code = get_physical_address(env, &paddr, &prot, &access_index,
- address, rw, mmu_idx, &page_size);
- if (error_code == 0) {
- vaddr = address & TARGET_PAGE_MASK;
- paddr &= TARGET_PAGE_MASK;
-#ifdef DEBUG_MMU
- printf("Translate at " TARGET_FMT_lx " -> " TARGET_FMT_plx ", vaddr "
- TARGET_FMT_lx "\n", address, paddr, vaddr);
-#endif
- tlb_set_page(env, vaddr, paddr, prot, mmu_idx, page_size);
- return 0;
- }
-
- if (env->mmuregs[3]) /* Fault status register */
- env->mmuregs[3] = 1; /* overflow (not read before another fault) */
- env->mmuregs[3] |= (access_index << 5) | error_code | 2;
- env->mmuregs[4] = address; /* Fault address register */
-
- if ((env->mmuregs[0] & MMU_NF) || env->psret == 0) {
- // No fault mode: if a mapping is available, just override
- // permissions. If no mapping is available, redirect accesses to
- // neverland. Fake/overridden mappings will be flushed when
- // switching to normal mode.
- vaddr = address & TARGET_PAGE_MASK;
- prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
- tlb_set_page(env, vaddr, paddr, prot, mmu_idx, TARGET_PAGE_SIZE);
- return 0;
- } else {
- if (rw & 2)
- env->exception_index = TT_TFAULT;
- else
- env->exception_index = TT_DFAULT;
- return 1;
- }
+ env->exception_index = EXCP_DEBUG;
+ cpu_loop_exit(env);
}
-target_ulong mmu_probe(CPUState *env, target_ulong address, int mmulev)
+#ifdef TARGET_SPARC64
+target_ulong helper_popc(target_ulong val)
{
- target_phys_addr_t pde_ptr;
- uint32_t pde;
-
- /* Context base + context number */
- pde_ptr = (target_phys_addr_t)(env->mmuregs[1] << 4) +
- (env->mmuregs[2] << 2);
- pde = ldl_phys(pde_ptr);
-
- switch (pde & PTE_ENTRYTYPE_MASK) {
- default:
- case 0: /* Invalid */
- case 2: /* PTE, maybe should not happen? */
- case 3: /* Reserved */
- return 0;
- case 1: /* L1 PDE */
- if (mmulev == 3)
- return pde;
- pde_ptr = ((address >> 22) & ~3) + ((pde & ~3) << 4);
- pde = ldl_phys(pde_ptr);
-
- switch (pde & PTE_ENTRYTYPE_MASK) {
- default:
- case 0: /* Invalid */
- case 3: /* Reserved */
- return 0;
- case 2: /* L1 PTE */
- return pde;
- case 1: /* L2 PDE */
- if (mmulev == 2)
- return pde;
- pde_ptr = ((address & 0xfc0000) >> 16) + ((pde & ~3) << 4);
- pde = ldl_phys(pde_ptr);
-
- switch (pde & PTE_ENTRYTYPE_MASK) {
- default:
- case 0: /* Invalid */
- case 3: /* Reserved */
- return 0;
- case 2: /* L2 PTE */
- return pde;
- case 1: /* L3 PDE */
- if (mmulev == 1)
- return pde;
- pde_ptr = ((address & 0x3f000) >> 10) + ((pde & ~3) << 4);
- pde = ldl_phys(pde_ptr);
-
- switch (pde & PTE_ENTRYTYPE_MASK) {
- default:
- case 0: /* Invalid */
- case 1: /* PDE, should not happen */
- case 3: /* Reserved */
- return 0;
- case 2: /* L3 PTE */
- return pde;
- }
- }
- }
- }
- return 0;
+ return ctpop64(val);
}
-void dump_mmu(FILE *f, fprintf_function cpu_fprintf, CPUState *env)
+void helper_tick_set_count(void *opaque, uint64_t count)
{
- target_ulong va, va1, va2;
- unsigned int n, m, o;
- target_phys_addr_t pde_ptr, pa;
- uint32_t pde;
-
- pde_ptr = (env->mmuregs[1] << 4) + (env->mmuregs[2] << 2);
- pde = ldl_phys(pde_ptr);
- (*cpu_fprintf)(f, "Root ptr: " TARGET_FMT_plx ", ctx: %d\n",
- (target_phys_addr_t)env->mmuregs[1] << 4, env->mmuregs[2]);
- for (n = 0, va = 0; n < 256; n++, va += 16 * 1024 * 1024) {
- pde = mmu_probe(env, va, 2);
- if (pde) {
- pa = cpu_get_phys_page_debug(env, va);
- (*cpu_fprintf)(f, "VA: " TARGET_FMT_lx ", PA: " TARGET_FMT_plx
- " PDE: " TARGET_FMT_lx "\n", va, pa, pde);
- for (m = 0, va1 = va; m < 64; m++, va1 += 256 * 1024) {
- pde = mmu_probe(env, va1, 1);
- if (pde) {
- pa = cpu_get_phys_page_debug(env, va1);
- (*cpu_fprintf)(f, " VA: " TARGET_FMT_lx ", PA: "
- TARGET_FMT_plx " PDE: " TARGET_FMT_lx "\n",
- va1, pa, pde);
- for (o = 0, va2 = va1; o < 64; o++, va2 += 4 * 1024) {
- pde = mmu_probe(env, va2, 0);
- if (pde) {
- pa = cpu_get_phys_page_debug(env, va2);
- (*cpu_fprintf)(f, " VA: " TARGET_FMT_lx ", PA: "
- TARGET_FMT_plx " PTE: "
- TARGET_FMT_lx "\n",
- va2, pa, pde);
- }
- }
- }
- }
- }
- }
+#if !defined(CONFIG_USER_ONLY)
+ cpu_tick_set_count(opaque, count);
+#endif
}
-#else /* !TARGET_SPARC64 */
-
-// 41 bit physical address space
-static inline target_phys_addr_t ultrasparc_truncate_physical(uint64_t x)
+uint64_t helper_tick_get_count(void *opaque)
{
- return x & 0x1ffffffffffULL;
+#if !defined(CONFIG_USER_ONLY)
+ return cpu_tick_get_count(opaque);
+#else
+ return 0;
+#endif
}
-/*
- * UltraSparc IIi I/DMMUs
- */
-
-// Returns true if TTE tag is valid and matches virtual address value in context
-// requires virtual address mask value calculated from TTE entry size
-static inline int ultrasparc_tag_match(SparcTLBEntry *tlb,
- uint64_t address, uint64_t context,
- target_phys_addr_t *physical)
+void helper_tick_set_limit(void *opaque, uint64_t limit)
{
- uint64_t mask;
-
- switch ((tlb->tte >> 61) & 3) {
- default:
- case 0x0: // 8k
- mask = 0xffffffffffffe000ULL;
- break;
- case 0x1: // 64k
- mask = 0xffffffffffff0000ULL;
- break;
- case 0x2: // 512k
- mask = 0xfffffffffff80000ULL;
- break;
- case 0x3: // 4M
- mask = 0xffffffffffc00000ULL;
- break;
- }
-
- // valid, context match, virtual address match?
- if (TTE_IS_VALID(tlb->tte) &&
- (TTE_IS_GLOBAL(tlb->tte) || tlb_compare_context(tlb, context))
- && compare_masked(address, tlb->tag, mask))
- {
- // decode physical address
- *physical = ((tlb->tte & mask) | (address & ~mask)) & 0x1ffffffe000ULL;
- return 1;
- }
-
- return 0;
+#if !defined(CONFIG_USER_ONLY)
+ cpu_tick_set_limit(opaque, limit);
+#endif
}
+#endif
-static int get_physical_address_data(CPUState *env,
- target_phys_addr_t *physical, int *prot,
- target_ulong address, int rw, int mmu_idx)
+static target_ulong helper_udiv_common(CPUSPARCState *env, target_ulong a,
+ target_ulong b, int cc)
{
- unsigned int i;
- uint64_t context;
+ int overflow = 0;
+ uint64_t x0;
+ uint32_t x1;
- int is_user = (mmu_idx == MMU_USER_IDX ||
- mmu_idx == MMU_USER_SECONDARY_IDX);
+ x0 = (a & 0xffffffff) | ((int64_t) (env->y) << 32);
+ x1 = (b & 0xffffffff);
- if ((env->lsu & DMMU_E) == 0) { /* DMMU disabled */
- *physical = ultrasparc_truncate_physical(address);
- *prot = PAGE_READ | PAGE_WRITE;
- return 0;
+ if (x1 == 0) {
+ cpu_restore_state(env, GETPC());
+ helper_raise_exception(env, TT_DIV_ZERO);
}
- switch(mmu_idx) {
- case MMU_USER_IDX:
- case MMU_KERNEL_IDX:
- context = env->dmmu.mmu_primary_context & 0x1fff;
- break;
- case MMU_USER_SECONDARY_IDX:
- case MMU_KERNEL_SECONDARY_IDX:
- context = env->dmmu.mmu_secondary_context & 0x1fff;
- break;
- case MMU_NUCLEUS_IDX:
- default:
- context = 0;
- break;
+ x0 = x0 / x1;
+ if (x0 > 0xffffffff) {
+ x0 = 0xffffffff;
+ overflow = 1;
}
- for (i = 0; i < 64; i++) {
- // ctx match, vaddr match, valid?
- if (ultrasparc_tag_match(&env->dtlb[i], address, context, physical)) {
-
- uint8_t fault_type = 0;
-
- // access ok?
- if ((env->dtlb[i].tte & 0x4) && is_user) {
- fault_type |= 1; /* privilege violation */
- env->exception_index = TT_DFAULT;
-
- DPRINTF_MMU("DFAULT at %" PRIx64 " context %" PRIx64
- " mmu_idx=%d tl=%d\n",
- address, context, mmu_idx, env->tl);
- } else if (!(env->dtlb[i].tte & 0x2) && (rw == 1)) {
- env->exception_index = TT_DPROT;
-
- DPRINTF_MMU("DPROT at %" PRIx64 " context %" PRIx64
- " mmu_idx=%d tl=%d\n",
- address, context, mmu_idx, env->tl);
- } else {
- *prot = PAGE_READ;
- if (env->dtlb[i].tte & 0x2)
- *prot |= PAGE_WRITE;
-
- TTE_SET_USED(env->dtlb[i].tte);
-
- return 0;
- }
-
- if (env->dmmu.sfsr & 1) /* Fault status register */
- env->dmmu.sfsr = 2; /* overflow (not read before
- another fault) */
-
- env->dmmu.sfsr |= (is_user << 3) | ((rw == 1) << 2) | 1;
-
- env->dmmu.sfsr |= (fault_type << 7);
-
- env->dmmu.sfar = address; /* Fault address register */
-
- env->dmmu.tag_access = (address & ~0x1fffULL) | context;
-
- return 1;
- }
+ if (cc) {
+ env->cc_dst = x0;
+ env->cc_src2 = overflow;
+ env->cc_op = CC_OP_DIV;
}
-
- DPRINTF_MMU("DMISS at %" PRIx64 " context %" PRIx64 "\n",
- address, context);
-
- env->dmmu.tag_access = (address & ~0x1fffULL) | context;
- env->exception_index = TT_DMISS;
- return 1;
+ return x0;
}
-static int get_physical_address_code(CPUState *env,
- target_phys_addr_t *physical, int *prot,
- target_ulong address, int mmu_idx)
+target_ulong helper_udiv(CPUSPARCState *env, target_ulong a, target_ulong b)
{
- unsigned int i;
- uint64_t context;
-
- int is_user = (mmu_idx == MMU_USER_IDX ||
- mmu_idx == MMU_USER_SECONDARY_IDX);
-
- if ((env->lsu & IMMU_E) == 0 || (env->pstate & PS_RED) != 0) {
- /* IMMU disabled */
- *physical = ultrasparc_truncate_physical(address);
- *prot = PAGE_EXEC;
- return 0;
- }
-
- if (env->tl == 0) {
- /* PRIMARY context */
- context = env->dmmu.mmu_primary_context & 0x1fff;
- } else {
- /* NUCLEUS context */
- context = 0;
- }
-
- for (i = 0; i < 64; i++) {
- // ctx match, vaddr match, valid?
- if (ultrasparc_tag_match(&env->itlb[i],
- address, context, physical)) {
- // access ok?
- if ((env->itlb[i].tte & 0x4) && is_user) {
- if (env->immu.sfsr) /* Fault status register */
- env->immu.sfsr = 2; /* overflow (not read before
- another fault) */
- env->immu.sfsr |= (is_user << 3) | 1;
- env->exception_index = TT_TFAULT;
-
- env->immu.tag_access = (address & ~0x1fffULL) | context;
-
- DPRINTF_MMU("TFAULT at %" PRIx64 " context %" PRIx64 "\n",
- address, context);
-
- return 1;
- }
- *prot = PAGE_EXEC;
- TTE_SET_USED(env->itlb[i].tte);
- return 0;
- }
- }
-
- DPRINTF_MMU("TMISS at %" PRIx64 " context %" PRIx64 "\n",
- address, context);
-
- /* Context is stored in DMMU (dmmuregs[1]) also for IMMU */
- env->immu.tag_access = (address & ~0x1fffULL) | context;
- env->exception_index = TT_TMISS;
- return 1;
+ return helper_udiv_common(env, a, b, 0);
}
-static int get_physical_address(CPUState *env, target_phys_addr_t *physical,
- int *prot, int *access_index,
- target_ulong address, int rw, int mmu_idx,
- target_ulong *page_size)
+target_ulong helper_udiv_cc(CPUSPARCState *env, target_ulong a, target_ulong b)
{
- /* ??? We treat everything as a small page, then explicitly flush
- everything when an entry is evicted. */
- *page_size = TARGET_PAGE_SIZE;
-
-#if defined (DEBUG_MMU)
- /* safety net to catch wrong softmmu index use from dynamic code */
- if (env->tl > 0 && mmu_idx != MMU_NUCLEUS_IDX) {
- DPRINTF_MMU("get_physical_address %s tl=%d mmu_idx=%d"
- " primary context=%" PRIx64
- " secondary context=%" PRIx64
- " address=%" PRIx64
- "\n",
- (rw == 2 ? "CODE" : "DATA"),
- env->tl, mmu_idx,
- env->dmmu.mmu_primary_context,
- env->dmmu.mmu_secondary_context,
- address);
- }
-#endif
-
- if (rw == 2)
- return get_physical_address_code(env, physical, prot, address,
- mmu_idx);
- else
- return get_physical_address_data(env, physical, prot, address, rw,
- mmu_idx);
+ return helper_udiv_common(env, a, b, 1);
}
-/* Perform address translation */
-int cpu_sparc_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
- int mmu_idx, int is_softmmu)
+static target_ulong helper_sdiv_common(CPUSPARCState *env, target_ulong a,
+ target_ulong b, int cc)
{
- target_ulong virt_addr, vaddr;
- target_phys_addr_t paddr;
- target_ulong page_size;
- int error_code = 0, prot, access_index;
-
- error_code = get_physical_address(env, &paddr, &prot, &access_index,
- address, rw, mmu_idx, &page_size);
- if (error_code == 0) {
- virt_addr = address & TARGET_PAGE_MASK;
- vaddr = virt_addr + ((address & TARGET_PAGE_MASK) &
- (TARGET_PAGE_SIZE - 1));
+ int overflow = 0;
+ int64_t x0;
+ int32_t x1;
- DPRINTF_MMU("Translate at %" PRIx64 " -> %" PRIx64 ","
- " vaddr %" PRIx64
- " mmu_idx=%d"
- " tl=%d"
- " primary context=%" PRIx64
- " secondary context=%" PRIx64
- "\n",
- address, paddr, vaddr, mmu_idx, env->tl,
- env->dmmu.mmu_primary_context,
- env->dmmu.mmu_secondary_context);
+ x0 = (a & 0xffffffff) | ((int64_t) (env->y) << 32);
+ x1 = (b & 0xffffffff);
- tlb_set_page(env, vaddr, paddr, prot, mmu_idx, page_size);
- return 0;
+ if (x1 == 0) {
+ cpu_restore_state(env, GETPC());
+ helper_raise_exception(env, TT_DIV_ZERO);
}
- // XXX
- return 1;
-}
-
-void dump_mmu(FILE *f, fprintf_function cpu_fprintf, CPUState *env)
-{
- unsigned int i;
- const char *mask;
- (*cpu_fprintf)(f, "MMU contexts: Primary: %" PRId64 ", Secondary: %"
- PRId64 "\n",
- env->dmmu.mmu_primary_context,
- env->dmmu.mmu_secondary_context);
- if ((env->lsu & DMMU_E) == 0) {
- (*cpu_fprintf)(f, "DMMU disabled\n");
- } else {
- (*cpu_fprintf)(f, "DMMU dump\n");
- for (i = 0; i < 64; i++) {
- switch ((env->dtlb[i].tte >> 61) & 3) {
- default:
- case 0x0:
- mask = " 8k";
- break;
- case 0x1:
- mask = " 64k";
- break;
- case 0x2:
- mask = "512k";
- break;
- case 0x3:
- mask = " 4M";
- break;
- }
- if ((env->dtlb[i].tte & 0x8000000000000000ULL) != 0) {
- (*cpu_fprintf)(f, "[%02u] VA: %" PRIx64 ", PA: %" PRIx64
- ", %s, %s, %s, %s, ctx %" PRId64 " %s\n",
- i,
- env->dtlb[i].tag & (uint64_t)~0x1fffULL,
- env->dtlb[i].tte & (uint64_t)0x1ffffffe000ULL,
- mask,
- env->dtlb[i].tte & 0x4? "priv": "user",
- env->dtlb[i].tte & 0x2? "RW": "RO",
- env->dtlb[i].tte & 0x40? "locked": "unlocked",
- env->dtlb[i].tag & (uint64_t)0x1fffULL,
- TTE_IS_GLOBAL(env->dtlb[i].tte)?
- "global" : "local");
- }
- }
+ x0 = x0 / x1;
+ if ((int32_t) x0 != x0) {
+ x0 = x0 < 0 ? 0x80000000 : 0x7fffffff;
+ overflow = 1;
}
- if ((env->lsu & IMMU_E) == 0) {
- (*cpu_fprintf)(f, "IMMU disabled\n");
- } else {
- (*cpu_fprintf)(f, "IMMU dump\n");
- for (i = 0; i < 64; i++) {
- switch ((env->itlb[i].tte >> 61) & 3) {
- default:
- case 0x0:
- mask = " 8k";
- break;
- case 0x1:
- mask = " 64k";
- break;
- case 0x2:
- mask = "512k";
- break;
- case 0x3:
- mask = " 4M";
- break;
- }
- if ((env->itlb[i].tte & 0x8000000000000000ULL) != 0) {
- (*cpu_fprintf)(f, "[%02u] VA: %" PRIx64 ", PA: %" PRIx64
- ", %s, %s, %s, ctx %" PRId64 " %s\n",
- i,
- env->itlb[i].tag & (uint64_t)~0x1fffULL,
- env->itlb[i].tte & (uint64_t)0x1ffffffe000ULL,
- mask,
- env->itlb[i].tte & 0x4? "priv": "user",
- env->itlb[i].tte & 0x40? "locked": "unlocked",
- env->itlb[i].tag & (uint64_t)0x1fffULL,
- TTE_IS_GLOBAL(env->itlb[i].tte)?
- "global" : "local");
- }
- }
+
+ if (cc) {
+ env->cc_dst = x0;
+ env->cc_src2 = overflow;
+ env->cc_op = CC_OP_DIV;
}
+ return x0;
}
-#endif /* TARGET_SPARC64 */
-#endif /* !CONFIG_USER_ONLY */
-
-
-#if !defined(CONFIG_USER_ONLY)
-target_phys_addr_t cpu_get_phys_page_nofault(CPUState *env, target_ulong addr,
- int mmu_idx)
+target_ulong helper_sdiv(CPUSPARCState *env, target_ulong a, target_ulong b)
{
- target_phys_addr_t phys_addr;
- target_ulong page_size;
- int prot, access_index;
-
- if (get_physical_address(env, &phys_addr, &prot, &access_index, addr, 2,
- mmu_idx, &page_size) != 0)
- if (get_physical_address(env, &phys_addr, &prot, &access_index, addr,
- 0, mmu_idx, &page_size) != 0)
- return -1;
- if (cpu_get_physical_page_desc(phys_addr) == IO_MEM_UNASSIGNED)
- return -1;
- return phys_addr;
+ return helper_sdiv_common(env, a, b, 0);
}
-target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
+target_ulong helper_sdiv_cc(CPUSPARCState *env, target_ulong a, target_ulong b)
{
- return cpu_get_phys_page_nofault(env, addr, cpu_mmu_index(env));
+ return helper_sdiv_common(env, a, b, 1);
}
-#endif
#ifdef TARGET_SPARC64
-#ifdef DEBUG_PCALL
-static const char * const excp_names[0x80] = {
- [TT_TFAULT] = "Instruction Access Fault",
- [TT_TMISS] = "Instruction Access MMU Miss",
- [TT_CODE_ACCESS] = "Instruction Access Error",
- [TT_ILL_INSN] = "Illegal Instruction",
- [TT_PRIV_INSN] = "Privileged Instruction",
- [TT_NFPU_INSN] = "FPU Disabled",
- [TT_FP_EXCP] = "FPU Exception",
- [TT_TOVF] = "Tag Overflow",
- [TT_CLRWIN] = "Clean Windows",
- [TT_DIV_ZERO] = "Division By Zero",
- [TT_DFAULT] = "Data Access Fault",
- [TT_DMISS] = "Data Access MMU Miss",
- [TT_DATA_ACCESS] = "Data Access Error",
- [TT_DPROT] = "Data Protection Error",
- [TT_UNALIGNED] = "Unaligned Memory Access",
- [TT_PRIV_ACT] = "Privileged Action",
- [TT_EXTINT | 0x1] = "External Interrupt 1",
- [TT_EXTINT | 0x2] = "External Interrupt 2",
- [TT_EXTINT | 0x3] = "External Interrupt 3",
- [TT_EXTINT | 0x4] = "External Interrupt 4",
- [TT_EXTINT | 0x5] = "External Interrupt 5",
- [TT_EXTINT | 0x6] = "External Interrupt 6",
- [TT_EXTINT | 0x7] = "External Interrupt 7",
- [TT_EXTINT | 0x8] = "External Interrupt 8",
- [TT_EXTINT | 0x9] = "External Interrupt 9",
- [TT_EXTINT | 0xa] = "External Interrupt 10",
- [TT_EXTINT | 0xb] = "External Interrupt 11",
- [TT_EXTINT | 0xc] = "External Interrupt 12",
- [TT_EXTINT | 0xd] = "External Interrupt 13",
- [TT_EXTINT | 0xe] = "External Interrupt 14",
- [TT_EXTINT | 0xf] = "External Interrupt 15",
-};
-#endif
-
-void do_interrupt(CPUState *env)
-{
- int intno = env->exception_index;
- trap_state *tsptr;
-
-#ifdef DEBUG_PCALL
- if (qemu_loglevel_mask(CPU_LOG_INT)) {
- static int count;
- const char *name;
-
- if (intno < 0 || intno >= 0x180) {
- name = "Unknown";
- } else if (intno >= 0x100) {
- name = "Trap Instruction";
- } else if (intno >= 0xc0) {
- name = "Window Fill";
- } else if (intno >= 0x80) {
- name = "Window Spill";
- } else {
- name = excp_names[intno];
- if (!name) {
- name = "Unknown";
- }
- }
-
- qemu_log("%6d: %s (v=%04x) pc=%016" PRIx64 " npc=%016" PRIx64
- " SP=%016" PRIx64 "\n",
- count, name, intno,
- env->pc,
- env->npc, env->regwptr[6]);
- log_cpu_state(env, 0);
-#if 0
- {
- int i;
- uint8_t *ptr;
-
- qemu_log(" code=");
- ptr = (uint8_t *)env->pc;
- for (i = 0; i < 16; i++) {
- qemu_log(" %02x", ldub(ptr + i));
- }
- qemu_log("\n");
- }
-#endif
- count++;
- }
-#endif
-#if !defined(CONFIG_USER_ONLY)
- if (env->tl >= env->maxtl) {
- cpu_abort(env, "Trap 0x%04x while trap level (%d) >= MAXTL (%d),"
- " Error state", env->exception_index, env->tl, env->maxtl);
- return;
- }
-#endif
- if (env->tl < env->maxtl - 1) {
- env->tl++;
+int64_t helper_sdivx(CPUSPARCState *env, int64_t a, int64_t b)
+{
+ if (b == 0) {
+ /* Raise divide by zero trap. */
+ cpu_restore_state(env, GETPC());
+ helper_raise_exception(env, TT_DIV_ZERO);
+ } else if (b == -1) {
+ /* Avoid overflow trap with i386 divide insn. */
+ return -a;
} else {
- env->pstate |= PS_RED;
- if (env->tl < env->maxtl) {
- env->tl++;
- }
- }
- tsptr = cpu_tsptr(env);
-
- tsptr->tstate = (cpu_get_ccr(env) << 32) |
- ((env->asi & 0xff) << 24) | ((env->pstate & 0xf3f) << 8) |
- cpu_get_cwp64(env);
- tsptr->tpc = env->pc;
- tsptr->tnpc = env->npc;
- tsptr->tt = intno;
-
- switch (intno) {
- case TT_IVEC:
- cpu_change_pstate(env, PS_PEF | PS_PRIV | PS_IG);
- break;
- case TT_TFAULT:
- case TT_DFAULT:
- case TT_TMISS ... TT_TMISS + 3:
- case TT_DMISS ... TT_DMISS + 3:
- case TT_DPROT ... TT_DPROT + 3:
- cpu_change_pstate(env, PS_PEF | PS_PRIV | PS_MG);
- break;
- default:
- cpu_change_pstate(env, PS_PEF | PS_PRIV | PS_AG);
- break;
- }
-
- if (intno == TT_CLRWIN) {
- cpu_set_cwp(env, cpu_cwp_dec(env, env->cwp - 1));
- } else if ((intno & 0x1c0) == TT_SPILL) {
- cpu_set_cwp(env, cpu_cwp_dec(env, env->cwp - env->cansave - 2));
- } else if ((intno & 0x1c0) == TT_FILL) {
- cpu_set_cwp(env, cpu_cwp_inc(env, env->cwp + 1));
- }
- env->tbr &= ~0x7fffULL;
- env->tbr |= ((env->tl > 1) ? 1 << 14 : 0) | (intno << 5);
- env->pc = env->tbr;
- env->npc = env->pc + 4;
- env->exception_index = -1;
-}
-#else
-#ifdef DEBUG_PCALL
-static const char * const excp_names[0x80] = {
- [TT_TFAULT] = "Instruction Access Fault",
- [TT_ILL_INSN] = "Illegal Instruction",
- [TT_PRIV_INSN] = "Privileged Instruction",
- [TT_NFPU_INSN] = "FPU Disabled",
- [TT_WIN_OVF] = "Window Overflow",
- [TT_WIN_UNF] = "Window Underflow",
- [TT_UNALIGNED] = "Unaligned Memory Access",
- [TT_FP_EXCP] = "FPU Exception",
- [TT_DFAULT] = "Data Access Fault",
- [TT_TOVF] = "Tag Overflow",
- [TT_EXTINT | 0x1] = "External Interrupt 1",
- [TT_EXTINT | 0x2] = "External Interrupt 2",
- [TT_EXTINT | 0x3] = "External Interrupt 3",
- [TT_EXTINT | 0x4] = "External Interrupt 4",
- [TT_EXTINT | 0x5] = "External Interrupt 5",
- [TT_EXTINT | 0x6] = "External Interrupt 6",
- [TT_EXTINT | 0x7] = "External Interrupt 7",
- [TT_EXTINT | 0x8] = "External Interrupt 8",
- [TT_EXTINT | 0x9] = "External Interrupt 9",
- [TT_EXTINT | 0xa] = "External Interrupt 10",
- [TT_EXTINT | 0xb] = "External Interrupt 11",
- [TT_EXTINT | 0xc] = "External Interrupt 12",
- [TT_EXTINT | 0xd] = "External Interrupt 13",
- [TT_EXTINT | 0xe] = "External Interrupt 14",
- [TT_EXTINT | 0xf] = "External Interrupt 15",
- [TT_TOVF] = "Tag Overflow",
- [TT_CODE_ACCESS] = "Instruction Access Error",
- [TT_DATA_ACCESS] = "Data Access Error",
- [TT_DIV_ZERO] = "Division By Zero",
- [TT_NCP_INSN] = "Coprocessor Disabled",
-};
-#endif
-
-void do_interrupt(CPUState *env)
-{
- int cwp, intno = env->exception_index;
-
-#ifdef DEBUG_PCALL
- if (qemu_loglevel_mask(CPU_LOG_INT)) {
- static int count;
- const char *name;
-
- if (intno < 0 || intno >= 0x100) {
- name = "Unknown";
- } else if (intno >= 0x80) {
- name = "Trap Instruction";
- } else {
- name = excp_names[intno];
- if (!name) {
- name = "Unknown";
- }
- }
-
- qemu_log("%6d: %s (v=%02x) pc=%08x npc=%08x SP=%08x\n",
- count, name, intno,
- env->pc,
- env->npc, env->regwptr[6]);
- log_cpu_state(env, 0);
-#if 0
- {
- int i;
- uint8_t *ptr;
-
- qemu_log(" code=");
- ptr = (uint8_t *)env->pc;
- for (i = 0; i < 16; i++) {
- qemu_log(" %02x", ldub(ptr + i));
- }
- qemu_log("\n");
- }
-#endif
- count++;
- }
-#endif
-#if !defined(CONFIG_USER_ONLY)
- if (env->psret == 0) {
- cpu_abort(env, "Trap 0x%02x while interrupts disabled, Error state",
- env->exception_index);
- return;
- }
-#endif
- env->psret = 0;
- cwp = cpu_cwp_dec(env, env->cwp - 1);
- cpu_set_cwp(env, cwp);
- env->regwptr[9] = env->pc;
- env->regwptr[10] = env->npc;
- env->psrps = env->psrs;
- env->psrs = 1;
- env->tbr = (env->tbr & TBR_BASE_MASK) | (intno << 4);
- env->pc = env->tbr;
- env->npc = env->pc + 4;
- env->exception_index = -1;
-
-#if !defined(CONFIG_USER_ONLY)
- /* IRQ acknowledgment */
- if ((intno & ~15) == TT_EXTINT && env->qemu_irq_ack != NULL) {
- env->qemu_irq_ack(env->irq_manager, intno);
+ return a / b;
}
-#endif
}
-#endif
-void cpu_reset(CPUSPARCState *env)
+uint64_t helper_udivx(CPUSPARCState *env, uint64_t a, uint64_t b)
{
- if (qemu_loglevel_mask(CPU_LOG_RESET)) {
- qemu_log("CPU Reset (CPU %d)\n", env->cpu_index);
- log_cpu_state(env, 0);
+ if (b == 0) {
+ /* Raise divide by zero trap. */
+ cpu_restore_state(env, GETPC());
+ helper_raise_exception(env, TT_DIV_ZERO);
}
-
- tlb_flush(env, 1);
- env->cwp = 0;
-#ifndef TARGET_SPARC64
- env->wim = 1;
-#endif
- env->regwptr = env->regbase + (env->cwp * 16);
- CC_OP = CC_OP_FLAGS;
-#if defined(CONFIG_USER_ONLY)
-#ifdef TARGET_SPARC64
- env->cleanwin = env->nwindows - 2;
- env->cansave = env->nwindows - 2;
- env->pstate = PS_RMO | PS_PEF | PS_IE;
- env->asi = 0x82; // Primary no-fault
-#endif
-#else
-#if !defined(TARGET_SPARC64)
- env->psret = 0;
- env->psrs = 1;
- env->psrps = 1;
-#endif
-#ifdef TARGET_SPARC64
- env->pstate = PS_PRIV|PS_RED|PS_PEF|PS_AG;
- env->hpstate = cpu_has_hypervisor(env) ? HS_PRIV : 0;
- env->tl = env->maxtl;
- cpu_tsptr(env)->tt = TT_POWER_ON_RESET;
- env->lsu = 0;
-#else
- env->mmuregs[0] &= ~(MMU_E | MMU_NF);
- env->mmuregs[0] |= env->def->mmu_bm;
-#endif
- env->pc = 0;
- env->npc = env->pc + 4;
-#endif
- env->cache_control = 0;
+ return a / b;
}
-
-static int cpu_sparc_register(CPUSPARCState *env, const char *cpu_model)
-{
- sparc_def_t def1, *def = &def1;
-
- if (cpu_sparc_find_by_name(def, cpu_model) < 0)
- return -1;
-
- env->def = qemu_mallocz(sizeof(*def));
- memcpy(env->def, def, sizeof(*def));
-#if defined(CONFIG_USER_ONLY)
- if ((env->def->features & CPU_FEATURE_FLOAT))
- env->def->features |= CPU_FEATURE_FLOAT128;
-#endif
- env->cpu_model_str = cpu_model;
- env->version = def->iu_version;
- env->fsr = def->fpu_version;
- env->nwindows = def->nwindows;
-#if !defined(TARGET_SPARC64)
- env->mmuregs[0] |= def->mmu_version;
- cpu_sparc_set_id(env, 0);
- env->mxccregs[7] |= def->mxcc_version;
-#else
- env->mmu_version = def->mmu_version;
- env->maxtl = def->maxtl;
- env->version |= def->maxtl << 8;
- env->version |= def->nwindows - 1;
#endif
- return 0;
-}
-
-static void cpu_sparc_close(CPUSPARCState *env)
-{
- free(env->def);
- free(env);
-}
-CPUSPARCState *cpu_sparc_init(const char *cpu_model)
+target_ulong helper_taddcctv(CPUSPARCState *env, target_ulong src1,
+ target_ulong src2)
{
- CPUSPARCState *env;
-
- env = qemu_mallocz(sizeof(CPUSPARCState));
- cpu_exec_init(env);
+ target_ulong dst;
- gen_intermediate_code_init(env);
-
- if (cpu_sparc_register(env, cpu_model) < 0) {
- cpu_sparc_close(env);
- return NULL;
+ /* Tag overflow occurs if either input has bits 0 or 1 set. */
+ if ((src1 | src2) & 3) {
+ goto tag_overflow;
}
- qemu_init_vcpu(env);
-
- return env;
-}
-
-void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu)
-{
-#if !defined(TARGET_SPARC64)
- env->mxccregs[7] = ((cpu + 8) & 0xf) << 24;
-#endif
-}
-
-static const sparc_def_t sparc_defs[] = {
-#ifdef TARGET_SPARC64
- {
- .name = "Fujitsu Sparc64",
- .iu_version = ((0x04ULL << 48) | (0x02ULL << 32) | (0ULL << 24)),
- .fpu_version = 0x00000000,
- .mmu_version = mmu_us_12,
- .nwindows = 4,
- .maxtl = 4,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "Fujitsu Sparc64 III",
- .iu_version = ((0x04ULL << 48) | (0x03ULL << 32) | (0ULL << 24)),
- .fpu_version = 0x00000000,
- .mmu_version = mmu_us_12,
- .nwindows = 5,
- .maxtl = 4,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "Fujitsu Sparc64 IV",
- .iu_version = ((0x04ULL << 48) | (0x04ULL << 32) | (0ULL << 24)),
- .fpu_version = 0x00000000,
- .mmu_version = mmu_us_12,
- .nwindows = 8,
- .maxtl = 5,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "Fujitsu Sparc64 V",
- .iu_version = ((0x04ULL << 48) | (0x05ULL << 32) | (0x51ULL << 24)),
- .fpu_version = 0x00000000,
- .mmu_version = mmu_us_12,
- .nwindows = 8,
- .maxtl = 5,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "TI UltraSparc I",
- .iu_version = ((0x17ULL << 48) | (0x10ULL << 32) | (0x40ULL << 24)),
- .fpu_version = 0x00000000,
- .mmu_version = mmu_us_12,
- .nwindows = 8,
- .maxtl = 5,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "TI UltraSparc II",
- .iu_version = ((0x17ULL << 48) | (0x11ULL << 32) | (0x20ULL << 24)),
- .fpu_version = 0x00000000,
- .mmu_version = mmu_us_12,
- .nwindows = 8,
- .maxtl = 5,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "TI UltraSparc IIi",
- .iu_version = ((0x17ULL << 48) | (0x12ULL << 32) | (0x91ULL << 24)),
- .fpu_version = 0x00000000,
- .mmu_version = mmu_us_12,
- .nwindows = 8,
- .maxtl = 5,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "TI UltraSparc IIe",
- .iu_version = ((0x17ULL << 48) | (0x13ULL << 32) | (0x14ULL << 24)),
- .fpu_version = 0x00000000,
- .mmu_version = mmu_us_12,
- .nwindows = 8,
- .maxtl = 5,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "Sun UltraSparc III",
- .iu_version = ((0x3eULL << 48) | (0x14ULL << 32) | (0x34ULL << 24)),
- .fpu_version = 0x00000000,
- .mmu_version = mmu_us_12,
- .nwindows = 8,
- .maxtl = 5,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "Sun UltraSparc III Cu",
- .iu_version = ((0x3eULL << 48) | (0x15ULL << 32) | (0x41ULL << 24)),
- .fpu_version = 0x00000000,
- .mmu_version = mmu_us_3,
- .nwindows = 8,
- .maxtl = 5,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "Sun UltraSparc IIIi",
- .iu_version = ((0x3eULL << 48) | (0x16ULL << 32) | (0x34ULL << 24)),
- .fpu_version = 0x00000000,
- .mmu_version = mmu_us_12,
- .nwindows = 8,
- .maxtl = 5,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "Sun UltraSparc IV",
- .iu_version = ((0x3eULL << 48) | (0x18ULL << 32) | (0x31ULL << 24)),
- .fpu_version = 0x00000000,
- .mmu_version = mmu_us_4,
- .nwindows = 8,
- .maxtl = 5,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "Sun UltraSparc IV+",
- .iu_version = ((0x3eULL << 48) | (0x19ULL << 32) | (0x22ULL << 24)),
- .fpu_version = 0x00000000,
- .mmu_version = mmu_us_12,
- .nwindows = 8,
- .maxtl = 5,
- .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_CMT,
- },
- {
- .name = "Sun UltraSparc IIIi+",
- .iu_version = ((0x3eULL << 48) | (0x22ULL << 32) | (0ULL << 24)),
- .fpu_version = 0x00000000,
- .mmu_version = mmu_us_3,
- .nwindows = 8,
- .maxtl = 5,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "Sun UltraSparc T1",
- // defined in sparc_ifu_fdp.v and ctu.h
- .iu_version = ((0x3eULL << 48) | (0x23ULL << 32) | (0x02ULL << 24)),
- .fpu_version = 0x00000000,
- .mmu_version = mmu_sun4v,
- .nwindows = 8,
- .maxtl = 6,
- .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_HYPV | CPU_FEATURE_CMT
- | CPU_FEATURE_GL,
- },
- {
- .name = "Sun UltraSparc T2",
- // defined in tlu_asi_ctl.v and n2_revid_cust.v
- .iu_version = ((0x3eULL << 48) | (0x24ULL << 32) | (0x02ULL << 24)),
- .fpu_version = 0x00000000,
- .mmu_version = mmu_sun4v,
- .nwindows = 8,
- .maxtl = 6,
- .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_HYPV | CPU_FEATURE_CMT
- | CPU_FEATURE_GL,
- },
- {
- .name = "NEC UltraSparc I",
- .iu_version = ((0x22ULL << 48) | (0x10ULL << 32) | (0x40ULL << 24)),
- .fpu_version = 0x00000000,
- .mmu_version = mmu_us_12,
- .nwindows = 8,
- .maxtl = 5,
- .features = CPU_DEFAULT_FEATURES,
- },
-#else
- {
- .name = "Fujitsu MB86900",
- .iu_version = 0x00 << 24, /* Impl 0, ver 0 */
- .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
- .mmu_version = 0x00 << 24, /* Impl 0, ver 0 */
- .mmu_bm = 0x00004000,
- .mmu_ctpr_mask = 0x007ffff0,
- .mmu_cxr_mask = 0x0000003f,
- .mmu_sfsr_mask = 0xffffffff,
- .mmu_trcr_mask = 0xffffffff,
- .nwindows = 7,
- .features = CPU_FEATURE_FLOAT | CPU_FEATURE_FSMULD,
- },
- {
- .name = "Fujitsu MB86904",
- .iu_version = 0x04 << 24, /* Impl 0, ver 4 */
- .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
- .mmu_version = 0x04 << 24, /* Impl 0, ver 4 */
- .mmu_bm = 0x00004000,
- .mmu_ctpr_mask = 0x00ffffc0,
- .mmu_cxr_mask = 0x000000ff,
- .mmu_sfsr_mask = 0x00016fff,
- .mmu_trcr_mask = 0x00ffffff,
- .nwindows = 8,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "Fujitsu MB86907",
- .iu_version = 0x05 << 24, /* Impl 0, ver 5 */
- .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
- .mmu_version = 0x05 << 24, /* Impl 0, ver 5 */
- .mmu_bm = 0x00004000,
- .mmu_ctpr_mask = 0xffffffc0,
- .mmu_cxr_mask = 0x000000ff,
- .mmu_sfsr_mask = 0x00016fff,
- .mmu_trcr_mask = 0xffffffff,
- .nwindows = 8,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "LSI L64811",
- .iu_version = 0x10 << 24, /* Impl 1, ver 0 */
- .fpu_version = 1 << 17, /* FPU version 1 (LSI L64814) */
- .mmu_version = 0x10 << 24,
- .mmu_bm = 0x00004000,
- .mmu_ctpr_mask = 0x007ffff0,
- .mmu_cxr_mask = 0x0000003f,
- .mmu_sfsr_mask = 0xffffffff,
- .mmu_trcr_mask = 0xffffffff,
- .nwindows = 8,
- .features = CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | CPU_FEATURE_FSQRT |
- CPU_FEATURE_FSMULD,
- },
- {
- .name = "Cypress CY7C601",
- .iu_version = 0x11 << 24, /* Impl 1, ver 1 */
- .fpu_version = 3 << 17, /* FPU version 3 (Cypress CY7C602) */
- .mmu_version = 0x10 << 24,
- .mmu_bm = 0x00004000,
- .mmu_ctpr_mask = 0x007ffff0,
- .mmu_cxr_mask = 0x0000003f,
- .mmu_sfsr_mask = 0xffffffff,
- .mmu_trcr_mask = 0xffffffff,
- .nwindows = 8,
- .features = CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | CPU_FEATURE_FSQRT |
- CPU_FEATURE_FSMULD,
- },
- {
- .name = "Cypress CY7C611",
- .iu_version = 0x13 << 24, /* Impl 1, ver 3 */
- .fpu_version = 3 << 17, /* FPU version 3 (Cypress CY7C602) */
- .mmu_version = 0x10 << 24,
- .mmu_bm = 0x00004000,
- .mmu_ctpr_mask = 0x007ffff0,
- .mmu_cxr_mask = 0x0000003f,
- .mmu_sfsr_mask = 0xffffffff,
- .mmu_trcr_mask = 0xffffffff,
- .nwindows = 8,
- .features = CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | CPU_FEATURE_FSQRT |
- CPU_FEATURE_FSMULD,
- },
- {
- .name = "TI MicroSparc I",
- .iu_version = 0x41000000,
- .fpu_version = 4 << 17,
- .mmu_version = 0x41000000,
- .mmu_bm = 0x00004000,
- .mmu_ctpr_mask = 0x007ffff0,
- .mmu_cxr_mask = 0x0000003f,
- .mmu_sfsr_mask = 0x00016fff,
- .mmu_trcr_mask = 0x0000003f,
- .nwindows = 7,
- .features = CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | CPU_FEATURE_MUL |
- CPU_FEATURE_DIV | CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT |
- CPU_FEATURE_FMUL,
- },
- {
- .name = "TI MicroSparc II",
- .iu_version = 0x42000000,
- .fpu_version = 4 << 17,
- .mmu_version = 0x02000000,
- .mmu_bm = 0x00004000,
- .mmu_ctpr_mask = 0x00ffffc0,
- .mmu_cxr_mask = 0x000000ff,
- .mmu_sfsr_mask = 0x00016fff,
- .mmu_trcr_mask = 0x00ffffff,
- .nwindows = 8,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "TI MicroSparc IIep",
- .iu_version = 0x42000000,
- .fpu_version = 4 << 17,
- .mmu_version = 0x04000000,
- .mmu_bm = 0x00004000,
- .mmu_ctpr_mask = 0x00ffffc0,
- .mmu_cxr_mask = 0x000000ff,
- .mmu_sfsr_mask = 0x00016bff,
- .mmu_trcr_mask = 0x00ffffff,
- .nwindows = 8,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "TI SuperSparc 40", // STP1020NPGA
- .iu_version = 0x41000000, // SuperSPARC 2.x
- .fpu_version = 0 << 17,
- .mmu_version = 0x00000800, // SuperSPARC 2.x, no MXCC
- .mmu_bm = 0x00002000,
- .mmu_ctpr_mask = 0xffffffc0,
- .mmu_cxr_mask = 0x0000ffff,
- .mmu_sfsr_mask = 0xffffffff,
- .mmu_trcr_mask = 0xffffffff,
- .nwindows = 8,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "TI SuperSparc 50", // STP1020PGA
- .iu_version = 0x40000000, // SuperSPARC 3.x
- .fpu_version = 0 << 17,
- .mmu_version = 0x01000800, // SuperSPARC 3.x, no MXCC
- .mmu_bm = 0x00002000,
- .mmu_ctpr_mask = 0xffffffc0,
- .mmu_cxr_mask = 0x0000ffff,
- .mmu_sfsr_mask = 0xffffffff,
- .mmu_trcr_mask = 0xffffffff,
- .nwindows = 8,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "TI SuperSparc 51",
- .iu_version = 0x40000000, // SuperSPARC 3.x
- .fpu_version = 0 << 17,
- .mmu_version = 0x01000000, // SuperSPARC 3.x, MXCC
- .mmu_bm = 0x00002000,
- .mmu_ctpr_mask = 0xffffffc0,
- .mmu_cxr_mask = 0x0000ffff,
- .mmu_sfsr_mask = 0xffffffff,
- .mmu_trcr_mask = 0xffffffff,
- .mxcc_version = 0x00000104,
- .nwindows = 8,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "TI SuperSparc 60", // STP1020APGA
- .iu_version = 0x40000000, // SuperSPARC 3.x
- .fpu_version = 0 << 17,
- .mmu_version = 0x01000800, // SuperSPARC 3.x, no MXCC
- .mmu_bm = 0x00002000,
- .mmu_ctpr_mask = 0xffffffc0,
- .mmu_cxr_mask = 0x0000ffff,
- .mmu_sfsr_mask = 0xffffffff,
- .mmu_trcr_mask = 0xffffffff,
- .nwindows = 8,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "TI SuperSparc 61",
- .iu_version = 0x44000000, // SuperSPARC 3.x
- .fpu_version = 0 << 17,
- .mmu_version = 0x01000000, // SuperSPARC 3.x, MXCC
- .mmu_bm = 0x00002000,
- .mmu_ctpr_mask = 0xffffffc0,
- .mmu_cxr_mask = 0x0000ffff,
- .mmu_sfsr_mask = 0xffffffff,
- .mmu_trcr_mask = 0xffffffff,
- .mxcc_version = 0x00000104,
- .nwindows = 8,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "TI SuperSparc II",
- .iu_version = 0x40000000, // SuperSPARC II 1.x
- .fpu_version = 0 << 17,
- .mmu_version = 0x08000000, // SuperSPARC II 1.x, MXCC
- .mmu_bm = 0x00002000,
- .mmu_ctpr_mask = 0xffffffc0,
- .mmu_cxr_mask = 0x0000ffff,
- .mmu_sfsr_mask = 0xffffffff,
- .mmu_trcr_mask = 0xffffffff,
- .mxcc_version = 0x00000104,
- .nwindows = 8,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "Ross RT625",
- .iu_version = 0x1e000000,
- .fpu_version = 1 << 17,
- .mmu_version = 0x1e000000,
- .mmu_bm = 0x00004000,
- .mmu_ctpr_mask = 0x007ffff0,
- .mmu_cxr_mask = 0x0000003f,
- .mmu_sfsr_mask = 0xffffffff,
- .mmu_trcr_mask = 0xffffffff,
- .nwindows = 8,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "Ross RT620",
- .iu_version = 0x1f000000,
- .fpu_version = 1 << 17,
- .mmu_version = 0x1f000000,
- .mmu_bm = 0x00004000,
- .mmu_ctpr_mask = 0x007ffff0,
- .mmu_cxr_mask = 0x0000003f,
- .mmu_sfsr_mask = 0xffffffff,
- .mmu_trcr_mask = 0xffffffff,
- .nwindows = 8,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "BIT B5010",
- .iu_version = 0x20000000,
- .fpu_version = 0 << 17, /* B5010/B5110/B5120/B5210 */
- .mmu_version = 0x20000000,
- .mmu_bm = 0x00004000,
- .mmu_ctpr_mask = 0x007ffff0,
- .mmu_cxr_mask = 0x0000003f,
- .mmu_sfsr_mask = 0xffffffff,
- .mmu_trcr_mask = 0xffffffff,
- .nwindows = 8,
- .features = CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | CPU_FEATURE_FSQRT |
- CPU_FEATURE_FSMULD,
- },
- {
- .name = "Matsushita MN10501",
- .iu_version = 0x50000000,
- .fpu_version = 0 << 17,
- .mmu_version = 0x50000000,
- .mmu_bm = 0x00004000,
- .mmu_ctpr_mask = 0x007ffff0,
- .mmu_cxr_mask = 0x0000003f,
- .mmu_sfsr_mask = 0xffffffff,
- .mmu_trcr_mask = 0xffffffff,
- .nwindows = 8,
- .features = CPU_FEATURE_FLOAT | CPU_FEATURE_MUL | CPU_FEATURE_FSQRT |
- CPU_FEATURE_FSMULD,
- },
- {
- .name = "Weitek W8601",
- .iu_version = 0x90 << 24, /* Impl 9, ver 0 */
- .fpu_version = 3 << 17, /* FPU version 3 (Weitek WTL3170/2) */
- .mmu_version = 0x10 << 24,
- .mmu_bm = 0x00004000,
- .mmu_ctpr_mask = 0x007ffff0,
- .mmu_cxr_mask = 0x0000003f,
- .mmu_sfsr_mask = 0xffffffff,
- .mmu_trcr_mask = 0xffffffff,
- .nwindows = 8,
- .features = CPU_DEFAULT_FEATURES,
- },
- {
- .name = "LEON2",
- .iu_version = 0xf2000000,
- .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
- .mmu_version = 0xf2000000,
- .mmu_bm = 0x00004000,
- .mmu_ctpr_mask = 0x007ffff0,
- .mmu_cxr_mask = 0x0000003f,
- .mmu_sfsr_mask = 0xffffffff,
- .mmu_trcr_mask = 0xffffffff,
- .nwindows = 8,
- .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_TA0_SHUTDOWN,
- },
- {
- .name = "LEON3",
- .iu_version = 0xf3000000,
- .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
- .mmu_version = 0xf3000000,
- .mmu_bm = 0x00000000,
- .mmu_ctpr_mask = 0x007ffff0,
- .mmu_cxr_mask = 0x0000003f,
- .mmu_sfsr_mask = 0xffffffff,
- .mmu_trcr_mask = 0xffffffff,
- .nwindows = 8,
- .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_TA0_SHUTDOWN |
- CPU_FEATURE_ASR17 | CPU_FEATURE_CACHE_CTRL,
- },
-#endif
-};
-
-static const char * const feature_name[] = {
- "float",
- "float128",
- "swap",
- "mul",
- "div",
- "flush",
- "fsqrt",
- "fmul",
- "vis1",
- "vis2",
- "fsmuld",
- "hypv",
- "cmt",
- "gl",
-};
-static void print_features(FILE *f, fprintf_function cpu_fprintf,
- uint32_t features, const char *prefix)
-{
- unsigned int i;
+ dst = src1 + src2;
- for (i = 0; i < ARRAY_SIZE(feature_name); i++)
- if (feature_name[i] && (features & (1 << i))) {
- if (prefix)
- (*cpu_fprintf)(f, "%s", prefix);
- (*cpu_fprintf)(f, "%s ", feature_name[i]);
- }
-}
+ /* Tag overflow occurs if the addition overflows. */
+ if (~(src1 ^ src2) & (src1 ^ dst) & (1u << 31)) {
+ goto tag_overflow;
+ }
-static void add_flagname_to_bitmaps(const char *flagname, uint32_t *features)
-{
- unsigned int i;
+ /* Only modify the CC after any exceptions have been generated. */
+ env->cc_op = CC_OP_TADDTV;
+ env->cc_src = src1;
+ env->cc_src2 = src2;
+ env->cc_dst = dst;
+ return dst;
- for (i = 0; i < ARRAY_SIZE(feature_name); i++)
- if (feature_name[i] && !strcmp(flagname, feature_name[i])) {
- *features |= 1 << i;
- return;
- }
- fprintf(stderr, "CPU feature %s not found\n", flagname);
+ tag_overflow:
+ cpu_restore_state(env, GETPC());
+ helper_raise_exception(env, TT_TOVF);
}
-static int cpu_sparc_find_by_name(sparc_def_t *cpu_def, const char *cpu_model)
+target_ulong helper_tsubcctv(CPUSPARCState *env, target_ulong src1,
+ target_ulong src2)
{
- unsigned int i;
- const sparc_def_t *def = NULL;
- char *s = strdup(cpu_model);
- char *featurestr, *name = strtok(s, ",");
- uint32_t plus_features = 0;
- uint32_t minus_features = 0;
- uint64_t iu_version;
- uint32_t fpu_version, mmu_version, nwindows;
+ target_ulong dst;
- for (i = 0; i < ARRAY_SIZE(sparc_defs); i++) {
- if (strcasecmp(name, sparc_defs[i].name) == 0) {
- def = &sparc_defs[i];
- }
+ /* Tag overflow occurs if either input has bits 0 or 1 set. */
+ if ((src1 | src2) & 3) {
+ goto tag_overflow;
}
- if (!def)
- goto error;
- memcpy(cpu_def, def, sizeof(*def));
-
- featurestr = strtok(NULL, ",");
- while (featurestr) {
- char *val;
-
- if (featurestr[0] == '+') {
- add_flagname_to_bitmaps(featurestr + 1, &plus_features);
- } else if (featurestr[0] == '-') {
- add_flagname_to_bitmaps(featurestr + 1, &minus_features);
- } else if ((val = strchr(featurestr, '='))) {
- *val = 0; val++;
- if (!strcmp(featurestr, "iu_version")) {
- char *err;
-
- iu_version = strtoll(val, &err, 0);
- if (!*val || *err) {
- fprintf(stderr, "bad numerical value %s\n", val);
- goto error;
- }
- cpu_def->iu_version = iu_version;
-#ifdef DEBUG_FEATURES
- fprintf(stderr, "iu_version %" PRIx64 "\n", iu_version);
-#endif
- } else if (!strcmp(featurestr, "fpu_version")) {
- char *err;
-
- fpu_version = strtol(val, &err, 0);
- if (!*val || *err) {
- fprintf(stderr, "bad numerical value %s\n", val);
- goto error;
- }
- cpu_def->fpu_version = fpu_version;
-#ifdef DEBUG_FEATURES
- fprintf(stderr, "fpu_version %x\n", fpu_version);
-#endif
- } else if (!strcmp(featurestr, "mmu_version")) {
- char *err;
- mmu_version = strtol(val, &err, 0);
- if (!*val || *err) {
- fprintf(stderr, "bad numerical value %s\n", val);
- goto error;
- }
- cpu_def->mmu_version = mmu_version;
-#ifdef DEBUG_FEATURES
- fprintf(stderr, "mmu_version %x\n", mmu_version);
-#endif
- } else if (!strcmp(featurestr, "nwindows")) {
- char *err;
+ dst = src1 - src2;
- nwindows = strtol(val, &err, 0);
- if (!*val || *err || nwindows > MAX_NWINDOWS ||
- nwindows < MIN_NWINDOWS) {
- fprintf(stderr, "bad numerical value %s\n", val);
- goto error;
- }
- cpu_def->nwindows = nwindows;
-#ifdef DEBUG_FEATURES
- fprintf(stderr, "nwindows %d\n", nwindows);
-#endif
- } else {
- fprintf(stderr, "unrecognized feature %s\n", featurestr);
- goto error;
- }
- } else {
- fprintf(stderr, "feature string `%s' not in format "
- "(+feature|-feature|feature=xyz)\n", featurestr);
- goto error;
- }
- featurestr = strtok(NULL, ",");
+ /* Tag overflow occurs if the subtraction overflows. */
+ if ((src1 ^ src2) & (src1 ^ dst) & (1u << 31)) {
+ goto tag_overflow;
}
- cpu_def->features |= plus_features;
- cpu_def->features &= ~minus_features;
-#ifdef DEBUG_FEATURES
- print_features(stderr, fprintf, cpu_def->features, NULL);
-#endif
- free(s);
- return 0;
- error:
- free(s);
- return -1;
-}
-
-void sparc_cpu_list(FILE *f, fprintf_function cpu_fprintf)
-{
- unsigned int i;
+ /* Only modify the CC after any exceptions have been generated. */
+ env->cc_op = CC_OP_TSUBTV;
+ env->cc_src = src1;
+ env->cc_src2 = src2;
+ env->cc_dst = dst;
+ return dst;
- for (i = 0; i < ARRAY_SIZE(sparc_defs); i++) {
- (*cpu_fprintf)(f, "Sparc %16s IU " TARGET_FMT_lx " FPU %08x MMU %08x NWINS %d ",
- sparc_defs[i].name,
- sparc_defs[i].iu_version,
- sparc_defs[i].fpu_version,
- sparc_defs[i].mmu_version,
- sparc_defs[i].nwindows);
- print_features(f, cpu_fprintf, CPU_DEFAULT_FEATURES &
- ~sparc_defs[i].features, "-");
- print_features(f, cpu_fprintf, ~CPU_DEFAULT_FEATURES &
- sparc_defs[i].features, "+");
- (*cpu_fprintf)(f, "\n");
- }
- (*cpu_fprintf)(f, "Default CPU feature flags (use '-' to remove): ");
- print_features(f, cpu_fprintf, CPU_DEFAULT_FEATURES, NULL);
- (*cpu_fprintf)(f, "\n");
- (*cpu_fprintf)(f, "Available CPU feature flags (use '+' to add): ");
- print_features(f, cpu_fprintf, ~CPU_DEFAULT_FEATURES, NULL);
- (*cpu_fprintf)(f, "\n");
- (*cpu_fprintf)(f, "Numerical features (use '=' to set): iu_version "
- "fpu_version mmu_version nwindows\n");
-}
-
-static void cpu_print_cc(FILE *f, fprintf_function cpu_fprintf,
- uint32_t cc)
-{
- cpu_fprintf(f, "%c%c%c%c", cc & PSR_NEG? 'N' : '-',
- cc & PSR_ZERO? 'Z' : '-', cc & PSR_OVF? 'V' : '-',
- cc & PSR_CARRY? 'C' : '-');
+ tag_overflow:
+ cpu_restore_state(env, GETPC());
+ helper_raise_exception(env, TT_TOVF);
}
-#ifdef TARGET_SPARC64
-#define REGS_PER_LINE 4
-#else
-#define REGS_PER_LINE 8
-#endif
-
-void cpu_dump_state(CPUState *env, FILE *f, fprintf_function cpu_fprintf,
- int flags)
+#ifndef TARGET_SPARC64
+void helper_power_down(CPUSPARCState *env)
{
- int i, x;
-
- cpu_fprintf(f, "pc: " TARGET_FMT_lx " npc: " TARGET_FMT_lx "\n", env->pc,
- env->npc);
- cpu_fprintf(f, "General Registers:\n");
+ CPUState *cs = CPU(sparc_env_get_cpu(env));
- for (i = 0; i < 8; i++) {
- if (i % REGS_PER_LINE == 0) {
- cpu_fprintf(f, "%%g%d-%d:", i, i + REGS_PER_LINE - 1);
- }
- cpu_fprintf(f, " " TARGET_FMT_lx, env->gregs[i]);
- if (i % REGS_PER_LINE == REGS_PER_LINE - 1) {
- cpu_fprintf(f, "\n");
- }
- }
- cpu_fprintf(f, "\nCurrent Register Window:\n");
- for (x = 0; x < 3; x++) {
- for (i = 0; i < 8; i++) {
- if (i % REGS_PER_LINE == 0) {
- cpu_fprintf(f, "%%%c%d-%d: ",
- x == 0 ? 'o' : (x == 1 ? 'l' : 'i'),
- i, i + REGS_PER_LINE - 1);
- }
- cpu_fprintf(f, TARGET_FMT_lx " ", env->regwptr[i + x * 8]);
- if (i % REGS_PER_LINE == REGS_PER_LINE - 1) {
- cpu_fprintf(f, "\n");
- }
- }
- }
- cpu_fprintf(f, "\nFloating Point Registers:\n");
- for (i = 0; i < TARGET_FPREGS; i++) {
- if ((i & 3) == 0)
- cpu_fprintf(f, "%%f%02d:", i);
- cpu_fprintf(f, " %016f", *(float *)&env->fpr[i]);
- if ((i & 3) == 3)
- cpu_fprintf(f, "\n");
- }
-#ifdef TARGET_SPARC64
- cpu_fprintf(f, "pstate: %08x ccr: %02x (icc: ", env->pstate,
- (unsigned)cpu_get_ccr(env));
- cpu_print_cc(f, cpu_fprintf, cpu_get_ccr(env) << PSR_CARRY_SHIFT);
- cpu_fprintf(f, " xcc: ");
- cpu_print_cc(f, cpu_fprintf, cpu_get_ccr(env) << (PSR_CARRY_SHIFT - 4));
- cpu_fprintf(f, ") asi: %02x tl: %d pil: %x\n", env->asi, env->tl,
- env->psrpil);
- cpu_fprintf(f, "cansave: %d canrestore: %d otherwin: %d wstate: %d "
- "cleanwin: %d cwp: %d\n",
- env->cansave, env->canrestore, env->otherwin, env->wstate,
- env->cleanwin, env->nwindows - 1 - env->cwp);
- cpu_fprintf(f, "fsr: " TARGET_FMT_lx " y: " TARGET_FMT_lx " fprs: "
- TARGET_FMT_lx "\n", env->fsr, env->y, env->fprs);
-#else
- cpu_fprintf(f, "psr: %08x (icc: ", cpu_get_psr(env));
- cpu_print_cc(f, cpu_fprintf, cpu_get_psr(env));
- cpu_fprintf(f, " SPE: %c%c%c) wim: %08x\n", env->psrs? 'S' : '-',
- env->psrps? 'P' : '-', env->psret? 'E' : '-',
- env->wim);
- cpu_fprintf(f, "fsr: " TARGET_FMT_lx " y: " TARGET_FMT_lx "\n",
- env->fsr, env->y);
-#endif
+ cs->halted = 1;
+ env->exception_index = EXCP_HLT;
+ env->pc = env->npc;
+ env->npc = env->pc + 4;
+ cpu_loop_exit(env);
}
+#endif
projects / mirror_qemu.git / blobdiff