-#include <math.h>
-#include <fenv.h>
#include "exec.h"
+//#define DEBUG_PCALL
//#define DEBUG_MMU
+//#define DEBUG_UNALIGNED
+//#define DEBUG_UNASSIGNED
void raise_exception(int tt)
{
env->exception_index = tt;
cpu_loop_exit();
-}
+}
+
+void check_ieee_exceptions()
+{
+ T0 = get_float_exception_flags(&env->fp_status);
+ if (T0)
+ {
+ /* Copy IEEE 754 flags into FSR */
+ if (T0 & float_flag_invalid)
+ env->fsr |= FSR_NVC;
+ if (T0 & float_flag_overflow)
+ env->fsr |= FSR_OFC;
+ if (T0 & float_flag_underflow)
+ env->fsr |= FSR_UFC;
+ if (T0 & float_flag_divbyzero)
+ env->fsr |= FSR_DZC;
+ if (T0 & float_flag_inexact)
+ env->fsr |= FSR_NXC;
+
+ if ((env->fsr & FSR_CEXC_MASK) & ((env->fsr & FSR_TEM_MASK) >> 23))
+ {
+ /* Unmasked exception, generate a trap */
+ env->fsr |= FSR_FTT_IEEE_EXCP;
+ raise_exception(TT_FP_EXCP);
+ }
+ else
+ {
+ /* Accumulate exceptions */
+ env->fsr |= (env->fsr & FSR_CEXC_MASK) << 5;
+ }
+ }
+}
#ifdef USE_INT_TO_FLOAT_HELPERS
void do_fitos(void)
{
- FT0 = (float) *((int32_t *)&FT1);
+ set_float_exception_flags(0, &env->fp_status);
+ FT0 = int32_to_float32(*((int32_t *)&FT1), &env->fp_status);
+ check_ieee_exceptions();
}
void do_fitod(void)
{
- DT0 = (double) *((int32_t *)&FT1);
+ DT0 = int32_to_float64(*((int32_t *)&FT1), &env->fp_status);
}
#endif
void do_fabss(void)
{
- FT0 = fabsf(FT1);
+ FT0 = float32_abs(FT1);
+}
+
+#ifdef TARGET_SPARC64
+void do_fabsd(void)
+{
+ DT0 = float64_abs(DT1);
}
+#endif
void do_fsqrts(void)
{
- FT0 = sqrtf(FT1);
+ set_float_exception_flags(0, &env->fp_status);
+ FT0 = float32_sqrt(FT1, &env->fp_status);
+ check_ieee_exceptions();
}
void do_fsqrtd(void)
{
- DT0 = sqrt(DT1);
+ set_float_exception_flags(0, &env->fp_status);
+ DT0 = float64_sqrt(DT1, &env->fp_status);
+ check_ieee_exceptions();
}
-void do_fcmps (void)
-{
- if (isnan(FT0) || isnan(FT1)) {
- T0 = FSR_FCC1 | FSR_FCC0;
- env->fsr &= ~(FSR_FCC1 | FSR_FCC0);
- env->fsr |= T0;
- if (env->fsr & FSR_NVM) {
- raise_exception(TT_FP_EXCP);
- } else {
- env->fsr |= FSR_NVA;
- }
- } else if (FT0 < FT1) {
- T0 = FSR_FCC0;
- } else if (FT0 > FT1) {
- T0 = FSR_FCC1;
- } else {
- T0 = 0;
+#define GEN_FCMP(name, size, reg1, reg2, FS, TRAP) \
+ void glue(do_, name) (void) \
+ { \
+ env->fsr &= ~((FSR_FCC1 | FSR_FCC0) << FS); \
+ switch (glue(size, _compare) (reg1, reg2, &env->fp_status)) { \
+ case float_relation_unordered: \
+ T0 = (FSR_FCC1 | FSR_FCC0) << FS; \
+ if ((env->fsr & FSR_NVM) || TRAP) { \
+ env->fsr |= T0; \
+ env->fsr |= FSR_NVC; \
+ env->fsr |= FSR_FTT_IEEE_EXCP; \
+ raise_exception(TT_FP_EXCP); \
+ } else { \
+ env->fsr |= FSR_NVA; \
+ } \
+ break; \
+ case float_relation_less: \
+ T0 = FSR_FCC0 << FS; \
+ break; \
+ case float_relation_greater: \
+ T0 = FSR_FCC1 << FS; \
+ break; \
+ default: \
+ T0 = 0; \
+ break; \
+ } \
+ env->fsr |= T0; \
}
- env->fsr = T0;
-}
-void do_fcmpd (void)
+GEN_FCMP(fcmps, float32, FT0, FT1, 0, 0);
+GEN_FCMP(fcmpd, float64, DT0, DT1, 0, 0);
+
+GEN_FCMP(fcmpes, float32, FT0, FT1, 0, 1);
+GEN_FCMP(fcmped, float64, DT0, DT1, 0, 1);
+
+#ifdef TARGET_SPARC64
+GEN_FCMP(fcmps_fcc1, float32, FT0, FT1, 22, 0);
+GEN_FCMP(fcmpd_fcc1, float64, DT0, DT1, 22, 0);
+
+GEN_FCMP(fcmps_fcc2, float32, FT0, FT1, 24, 0);
+GEN_FCMP(fcmpd_fcc2, float64, DT0, DT1, 24, 0);
+
+GEN_FCMP(fcmps_fcc3, float32, FT0, FT1, 26, 0);
+GEN_FCMP(fcmpd_fcc3, float64, DT0, DT1, 26, 0);
+
+GEN_FCMP(fcmpes_fcc1, float32, FT0, FT1, 22, 1);
+GEN_FCMP(fcmped_fcc1, float64, DT0, DT1, 22, 1);
+
+GEN_FCMP(fcmpes_fcc2, float32, FT0, FT1, 24, 1);
+GEN_FCMP(fcmped_fcc2, float64, DT0, DT1, 24, 1);
+
+GEN_FCMP(fcmpes_fcc3, float32, FT0, FT1, 26, 1);
+GEN_FCMP(fcmped_fcc3, float64, DT0, DT1, 26, 1);
+#endif
+
+#if defined(CONFIG_USER_ONLY)
+void helper_ld_asi(int asi, int size, int sign)
{
- if (isnan(DT0) || isnan(DT1)) {
- T0 = FSR_FCC1 | FSR_FCC0;
- env->fsr &= ~(FSR_FCC1 | FSR_FCC0);
- env->fsr |= T0;
- if (env->fsr & FSR_NVM) {
- raise_exception(TT_FP_EXCP);
- } else {
- env->fsr |= FSR_NVA;
- }
- } else if (DT0 < DT1) {
- T0 = FSR_FCC0;
- } else if (DT0 > DT1) {
- T0 = FSR_FCC1;
- } else {
- T0 = 0;
- }
- env->fsr = T0;
}
+void helper_st_asi(int asi, int size, int sign)
+{
+}
+#else
+#ifndef TARGET_SPARC64
void helper_ld_asi(int asi, int size, int sign)
{
- uint32_t ret;
+ uint32_t ret = 0;
switch (asi) {
+ case 2: /* SuperSparc MXCC registers */
+ break;
case 3: /* MMU probe */
{
int mmulev;
if (mmulev > 4)
ret = 0;
else {
- ret = mmu_probe(T0, mmulev);
+ ret = mmu_probe(env, T0, mmulev);
//bswap32s(&ret);
}
#ifdef DEBUG_MMU
case 4: /* read MMU regs */
{
int reg = (T0 >> 8) & 0xf;
-
+
ret = env->mmuregs[reg];
- if (reg == 3 || reg == 4) /* Fault status, addr cleared on read*/
- env->mmuregs[4] = 0;
+ if (reg == 3) /* Fault status cleared on read */
+ env->mmuregs[reg] = 0;
+#ifdef DEBUG_MMU
+ printf("mmu_read: reg[%d] = 0x%08x\n", reg, ret);
+#endif
}
break;
- case 0x20 ... 0x2f: /* MMU passthrough */
- cpu_physical_memory_read(T0, (void *) &ret, size);
- if (size == 4)
- tswap32s(&ret);
- else if (size == 2)
- tswap16s((uint16_t *)&ret);
+ case 9: /* Supervisor code access */
+ switch(size) {
+ case 1:
+ ret = ldub_code(T0);
+ break;
+ case 2:
+ ret = lduw_code(T0 & ~1);
+ break;
+ default:
+ case 4:
+ ret = ldl_code(T0 & ~3);
+ break;
+ case 8:
+ ret = ldl_code(T0 & ~3);
+ T0 = ldl_code((T0 + 4) & ~3);
+ break;
+ }
+ break;
+ case 0xc: /* I-cache tag */
+ case 0xd: /* I-cache data */
+ case 0xe: /* D-cache tag */
+ case 0xf: /* D-cache data */
+ break;
+ case 0x20: /* MMU passthrough */
+ switch(size) {
+ case 1:
+ ret = ldub_phys(T0);
+ break;
+ case 2:
+ ret = lduw_phys(T0 & ~1);
+ break;
+ default:
+ case 4:
+ ret = ldl_phys(T0 & ~3);
+ break;
+ case 8:
+ ret = ldl_phys(T0 & ~3);
+ T0 = ldl_phys((T0 + 4) & ~3);
+ break;
+ }
break;
+ case 0x2e: /* MMU passthrough, 0xexxxxxxxx */
+ case 0x2f: /* MMU passthrough, 0xfxxxxxxxx */
+ switch(size) {
+ case 1:
+ ret = ldub_phys((target_phys_addr_t)T0
+ | ((target_phys_addr_t)(asi & 0xf) << 32));
+ break;
+ case 2:
+ ret = lduw_phys((target_phys_addr_t)(T0 & ~1)
+ | ((target_phys_addr_t)(asi & 0xf) << 32));
+ break;
+ default:
+ case 4:
+ ret = ldl_phys((target_phys_addr_t)(T0 & ~3)
+ | ((target_phys_addr_t)(asi & 0xf) << 32));
+ break;
+ case 8:
+ ret = ldl_phys((target_phys_addr_t)(T0 & ~3)
+ | ((target_phys_addr_t)(asi & 0xf) << 32));
+ T0 = ldl_phys((target_phys_addr_t)((T0 + 4) & ~3)
+ | ((target_phys_addr_t)(asi & 0xf) << 32));
+ break;
+ }
+ break;
+ case 0x21 ... 0x2d: /* MMU passthrough, unassigned */
default:
+ do_unassigned_access(T0, 0, 0, 1);
ret = 0;
break;
}
void helper_st_asi(int asi, int size, int sign)
{
switch(asi) {
+ case 2: /* SuperSparc MXCC registers */
+ break;
case 3: /* MMU flush */
{
int mmulev;
mmulev = (T0 >> 8) & 15;
+#ifdef DEBUG_MMU
+ printf("mmu flush level %d\n", mmulev);
+#endif
switch (mmulev) {
case 0: // flush page
- tlb_flush_page(cpu_single_env, T0 & 0xfffff000);
+ tlb_flush_page(env, T0 & 0xfffff000);
break;
case 1: // flush segment (256k)
case 2: // flush region (16M)
case 3: // flush context (4G)
case 4: // flush entire
- tlb_flush(cpu_single_env, 1);
+ tlb_flush(env, 1);
break;
default:
break;
}
- dump_mmu();
+#ifdef DEBUG_MMU
+ dump_mmu(env);
+#endif
return;
}
case 4: /* write MMU regs */
{
- int reg = (T0 >> 8) & 0xf, oldreg;
-
+ int reg = (T0 >> 8) & 0xf;
+ uint32_t oldreg;
+
oldreg = env->mmuregs[reg];
- if (reg == 0) {
+ switch(reg) {
+ case 0:
env->mmuregs[reg] &= ~(MMU_E | MMU_NF);
env->mmuregs[reg] |= T1 & (MMU_E | MMU_NF);
- } else
+ // Mappings generated during no-fault mode or MMU
+ // disabled mode are invalid in normal mode
+ if (oldreg != env->mmuregs[reg])
+ tlb_flush(env, 1);
+ break;
+ case 2:
env->mmuregs[reg] = T1;
- if (oldreg != env->mmuregs[reg]) {
-#if 0
- // XXX: Only if MMU mapping change, we may need to flush?
- tlb_flush(cpu_single_env, 1);
- cpu_loop_exit();
- FORCE_RET();
+ if (oldreg != env->mmuregs[reg]) {
+ /* we flush when the MMU context changes because
+ QEMU has no MMU context support */
+ tlb_flush(env, 1);
+ }
+ break;
+ case 3:
+ case 4:
+ break;
+ default:
+ env->mmuregs[reg] = T1;
+ break;
+ }
+#ifdef DEBUG_MMU
+ if (oldreg != env->mmuregs[reg]) {
+ printf("mmu change reg[%d]: 0x%08x -> 0x%08x\n", reg, oldreg, env->mmuregs[reg]);
+ }
+ dump_mmu(env);
#endif
- }
- dump_mmu();
return;
}
+ case 0xc: /* I-cache tag */
+ case 0xd: /* I-cache data */
+ case 0xe: /* D-cache tag */
+ case 0xf: /* D-cache data */
+ case 0x10: /* I/D-cache flush page */
+ case 0x11: /* I/D-cache flush segment */
+ case 0x12: /* I/D-cache flush region */
+ case 0x13: /* I/D-cache flush context */
+ case 0x14: /* I/D-cache flush user */
+ break;
case 0x17: /* Block copy, sta access */
{
// value (T1) = src
// address (T0) = dst
// copy 32 bytes
- int src = T1, dst = T0;
- uint8_t temp[32];
-
- tswap32s(&src);
+ unsigned int i;
+ uint32_t src = T1 & ~3, dst = T0 & ~3, temp;
- cpu_physical_memory_read(src, (void *) &temp, 32);
- cpu_physical_memory_write(dst, (void *) &temp, 32);
+ for (i = 0; i < 32; i += 4, src += 4, dst += 4) {
+ temp = ldl_kernel(src);
+ stl_kernel(dst, temp);
+ }
}
return;
case 0x1f: /* Block fill, stda access */
// value (T1, T2)
// address (T0) = dst
// fill 32 bytes
- int i, dst = T0;
- uint64_t val;
-
- val = (((uint64_t)T1) << 32) | T2;
- tswap64s(&val);
-
- for (i = 0; i < 32; i += 8, dst += 8) {
- cpu_physical_memory_write(dst, (void *) &val, 8);
+ unsigned int i;
+ uint32_t dst = T0 & 7;
+ uint64_t val;
+
+ val = (((uint64_t)T1) << 32) | T2;
+
+ for (i = 0; i < 32; i += 8, dst += 8)
+ stq_kernel(dst, val);
+ }
+ return;
+ case 0x20: /* MMU passthrough */
+ {
+ switch(size) {
+ case 1:
+ stb_phys(T0, T1);
+ break;
+ case 2:
+ stw_phys(T0 & ~1, T1);
+ break;
+ case 4:
+ default:
+ stl_phys(T0 & ~3, T1);
+ break;
+ case 8:
+ stl_phys(T0 & ~3, T1);
+ stl_phys((T0 + 4) & ~3, T2);
+ break;
+ }
+ }
+ return;
+ case 0x2e: /* MMU passthrough, 0xexxxxxxxx */
+ case 0x2f: /* MMU passthrough, 0xfxxxxxxxx */
+ {
+ switch(size) {
+ case 1:
+ stb_phys((target_phys_addr_t)T0
+ | ((target_phys_addr_t)(asi & 0xf) << 32), T1);
+ break;
+ case 2:
+ stw_phys((target_phys_addr_t)(T0 & ~1)
+ | ((target_phys_addr_t)(asi & 0xf) << 32), T1);
+ break;
+ case 4:
+ default:
+ stl_phys((target_phys_addr_t)(T0 & ~3)
+ | ((target_phys_addr_t)(asi & 0xf) << 32), T1);
+ break;
+ case 8:
+ stl_phys((target_phys_addr_t)(T0 & ~3)
+ | ((target_phys_addr_t)(asi & 0xf) << 32), T1);
+ stl_phys((target_phys_addr_t)((T0 + 4) & ~3)
+ | ((target_phys_addr_t)(asi & 0xf) << 32), T1);
+ break;
+ }
+ }
+ return;
+ case 0x31: /* Ross RT620 I-cache flush */
+ case 0x36: /* I-cache flash clear */
+ case 0x37: /* D-cache flash clear */
+ break;
+ case 9: /* Supervisor code access, XXX */
+ case 0x21 ... 0x2d: /* MMU passthrough, unassigned */
+ default:
+ do_unassigned_access(T0, 1, 0, 1);
+ return;
+ }
+}
+
+#else
+
+void helper_ld_asi(int asi, int size, int sign)
+{
+ uint64_t ret = 0;
+
+ if (asi < 0x80 && (env->pstate & PS_PRIV) == 0)
+ raise_exception(TT_PRIV_ACT);
+
+ switch (asi) {
+ case 0x14: // Bypass
+ case 0x15: // Bypass, non-cacheable
+ {
+ switch(size) {
+ case 1:
+ ret = ldub_phys(T0);
+ break;
+ case 2:
+ ret = lduw_phys(T0 & ~1);
+ break;
+ case 4:
+ ret = ldl_phys(T0 & ~3);
+ break;
+ default:
+ case 8:
+ ret = ldq_phys(T0 & ~7);
+ break;
+ }
+ break;
+ }
+ case 0x04: // Nucleus
+ case 0x0c: // Nucleus Little Endian (LE)
+ case 0x10: // As if user primary
+ case 0x11: // As if user secondary
+ case 0x18: // As if user primary LE
+ case 0x19: // As if user secondary LE
+ case 0x1c: // Bypass LE
+ case 0x1d: // Bypass, non-cacheable LE
+ case 0x24: // Nucleus quad LDD 128 bit atomic
+ case 0x2c: // Nucleus quad LDD 128 bit atomic
+ case 0x4a: // UPA config
+ case 0x82: // Primary no-fault
+ case 0x83: // Secondary no-fault
+ case 0x88: // Primary LE
+ case 0x89: // Secondary LE
+ case 0x8a: // Primary no-fault LE
+ case 0x8b: // Secondary no-fault LE
+ // XXX
+ break;
+ case 0x45: // LSU
+ ret = env->lsu;
+ break;
+ case 0x50: // I-MMU regs
+ {
+ int reg = (T0 >> 3) & 0xf;
+
+ ret = env->immuregs[reg];
+ break;
+ }
+ case 0x51: // I-MMU 8k TSB pointer
+ case 0x52: // I-MMU 64k TSB pointer
+ case 0x55: // I-MMU data access
+ // XXX
+ break;
+ case 0x56: // I-MMU tag read
+ {
+ unsigned int i;
+
+ for (i = 0; i < 64; i++) {
+ // Valid, ctx match, vaddr match
+ if ((env->itlb_tte[i] & 0x8000000000000000ULL) != 0 &&
+ env->itlb_tag[i] == T0) {
+ ret = env->itlb_tag[i];
+ break;
+ }
}
+ break;
}
+ case 0x58: // D-MMU regs
+ {
+ int reg = (T0 >> 3) & 0xf;
+
+ ret = env->dmmuregs[reg];
+ break;
+ }
+ case 0x5e: // D-MMU tag read
+ {
+ unsigned int i;
+
+ for (i = 0; i < 64; i++) {
+ // Valid, ctx match, vaddr match
+ if ((env->dtlb_tte[i] & 0x8000000000000000ULL) != 0 &&
+ env->dtlb_tag[i] == T0) {
+ ret = env->dtlb_tag[i];
+ break;
+ }
+ }
+ break;
+ }
+ case 0x59: // D-MMU 8k TSB pointer
+ case 0x5a: // D-MMU 64k TSB pointer
+ case 0x5b: // D-MMU data pointer
+ case 0x5d: // D-MMU data access
+ case 0x48: // Interrupt dispatch, RO
+ case 0x49: // Interrupt data receive
+ case 0x7f: // Incoming interrupt vector, RO
+ // XXX
+ break;
+ case 0x54: // I-MMU data in, WO
+ case 0x57: // I-MMU demap, WO
+ case 0x5c: // D-MMU data in, WO
+ case 0x5f: // D-MMU demap, WO
+ case 0x77: // Interrupt vector, WO
+ default:
+ do_unassigned_access(T0, 0, 0, 1);
+ ret = 0;
+ break;
+ }
+ T1 = ret;
+}
+
+void helper_st_asi(int asi, int size, int sign)
+{
+ if (asi < 0x80 && (env->pstate & PS_PRIV) == 0)
+ raise_exception(TT_PRIV_ACT);
+
+ switch(asi) {
+ case 0x14: // Bypass
+ case 0x15: // Bypass, non-cacheable
+ {
+ switch(size) {
+ case 1:
+ stb_phys(T0, T1);
+ break;
+ case 2:
+ stw_phys(T0 & ~1, T1);
+ break;
+ case 4:
+ stl_phys(T0 & ~3, T1);
+ break;
+ case 8:
+ default:
+ stq_phys(T0 & ~7, T1);
+ break;
+ }
+ }
+ return;
+ case 0x04: // Nucleus
+ case 0x0c: // Nucleus Little Endian (LE)
+ case 0x10: // As if user primary
+ case 0x11: // As if user secondary
+ case 0x18: // As if user primary LE
+ case 0x19: // As if user secondary LE
+ case 0x1c: // Bypass LE
+ case 0x1d: // Bypass, non-cacheable LE
+ case 0x24: // Nucleus quad LDD 128 bit atomic
+ case 0x2c: // Nucleus quad LDD 128 bit atomic
+ case 0x4a: // UPA config
+ case 0x88: // Primary LE
+ case 0x89: // Secondary LE
+ // XXX
+ return;
+ case 0x45: // LSU
+ {
+ uint64_t oldreg;
+
+ oldreg = env->lsu;
+ env->lsu = T1 & (DMMU_E | IMMU_E);
+ // Mappings generated during D/I MMU disabled mode are
+ // invalid in normal mode
+ if (oldreg != env->lsu) {
+#ifdef DEBUG_MMU
+ printf("LSU change: 0x%" PRIx64 " -> 0x%" PRIx64 "\n", oldreg, env->lsu);
+ dump_mmu(env);
+#endif
+ tlb_flush(env, 1);
+ }
+ return;
+ }
+ case 0x50: // I-MMU regs
+ {
+ int reg = (T0 >> 3) & 0xf;
+ uint64_t oldreg;
+
+ oldreg = env->immuregs[reg];
+ switch(reg) {
+ case 0: // RO
+ case 4:
+ return;
+ case 1: // Not in I-MMU
+ case 2:
+ case 7:
+ case 8:
+ return;
+ case 3: // SFSR
+ if ((T1 & 1) == 0)
+ T1 = 0; // Clear SFSR
+ break;
+ case 5: // TSB access
+ case 6: // Tag access
+ default:
+ break;
+ }
+ env->immuregs[reg] = T1;
+#ifdef DEBUG_MMU
+ if (oldreg != env->immuregs[reg]) {
+ printf("mmu change reg[%d]: 0x%08" PRIx64 " -> 0x%08" PRIx64 "\n", reg, oldreg, env->immuregs[reg]);
+ }
+ dump_mmu(env);
+#endif
+ return;
+ }
+ case 0x54: // I-MMU data in
+ {
+ unsigned int i;
+
+ // Try finding an invalid entry
+ for (i = 0; i < 64; i++) {
+ if ((env->itlb_tte[i] & 0x8000000000000000ULL) == 0) {
+ env->itlb_tag[i] = env->immuregs[6];
+ env->itlb_tte[i] = T1;
+ return;
+ }
+ }
+ // Try finding an unlocked entry
+ for (i = 0; i < 64; i++) {
+ if ((env->itlb_tte[i] & 0x40) == 0) {
+ env->itlb_tag[i] = env->immuregs[6];
+ env->itlb_tte[i] = T1;
+ return;
+ }
+ }
+ // error state?
+ return;
+ }
+ case 0x55: // I-MMU data access
+ {
+ unsigned int i = (T0 >> 3) & 0x3f;
+
+ env->itlb_tag[i] = env->immuregs[6];
+ env->itlb_tte[i] = T1;
+ return;
+ }
+ case 0x57: // I-MMU demap
+ // XXX
return;
- case 0x20 ... 0x2f: /* MMU passthrough */
+ case 0x58: // D-MMU regs
+ {
+ int reg = (T0 >> 3) & 0xf;
+ uint64_t oldreg;
+
+ oldreg = env->dmmuregs[reg];
+ switch(reg) {
+ case 0: // RO
+ case 4:
+ return;
+ case 3: // SFSR
+ if ((T1 & 1) == 0) {
+ T1 = 0; // Clear SFSR, Fault address
+ env->dmmuregs[4] = 0;
+ }
+ env->dmmuregs[reg] = T1;
+ break;
+ case 1: // Primary context
+ case 2: // Secondary context
+ case 5: // TSB access
+ case 6: // Tag access
+ case 7: // Virtual Watchpoint
+ case 8: // Physical Watchpoint
+ default:
+ break;
+ }
+ env->dmmuregs[reg] = T1;
+#ifdef DEBUG_MMU
+ if (oldreg != env->dmmuregs[reg]) {
+ printf("mmu change reg[%d]: 0x%08" PRIx64 " -> 0x%08" PRIx64 "\n", reg, oldreg, env->dmmuregs[reg]);
+ }
+ dump_mmu(env);
+#endif
+ return;
+ }
+ case 0x5c: // D-MMU data in
{
- int temp = T1;
- if (size == 4)
- tswap32s(&temp);
- else if (size == 2)
- tswap16s((uint16_t *)&temp);
- cpu_physical_memory_write(T0, (void *) &temp, size);
+ unsigned int i;
+
+ // Try finding an invalid entry
+ for (i = 0; i < 64; i++) {
+ if ((env->dtlb_tte[i] & 0x8000000000000000ULL) == 0) {
+ env->dtlb_tag[i] = env->dmmuregs[6];
+ env->dtlb_tte[i] = T1;
+ return;
+ }
+ }
+ // Try finding an unlocked entry
+ for (i = 0; i < 64; i++) {
+ if ((env->dtlb_tte[i] & 0x40) == 0) {
+ env->dtlb_tag[i] = env->dmmuregs[6];
+ env->dtlb_tte[i] = T1;
+ return;
+ }
+ }
+ // error state?
+ return;
}
+ case 0x5d: // D-MMU data access
+ {
+ unsigned int i = (T0 >> 3) & 0x3f;
+
+ env->dtlb_tag[i] = env->dmmuregs[6];
+ env->dtlb_tte[i] = T1;
+ return;
+ }
+ case 0x5f: // D-MMU demap
+ case 0x49: // Interrupt data receive
+ // XXX
return;
+ case 0x51: // I-MMU 8k TSB pointer, RO
+ case 0x52: // I-MMU 64k TSB pointer, RO
+ case 0x56: // I-MMU tag read, RO
+ case 0x59: // D-MMU 8k TSB pointer, RO
+ case 0x5a: // D-MMU 64k TSB pointer, RO
+ case 0x5b: // D-MMU data pointer, RO
+ case 0x5e: // D-MMU tag read, RO
+ case 0x48: // Interrupt dispatch, RO
+ case 0x7f: // Incoming interrupt vector, RO
+ case 0x82: // Primary no-fault, RO
+ case 0x83: // Secondary no-fault, RO
+ case 0x8a: // Primary no-fault LE, RO
+ case 0x8b: // Secondary no-fault LE, RO
default:
+ do_unassigned_access(T0, 1, 0, 1);
return;
}
}
+#endif
+#endif /* !CONFIG_USER_ONLY */
+#ifndef TARGET_SPARC64
void helper_rett()
{
unsigned int cwp;
+ if (env->psret == 1)
+ raise_exception(TT_ILL_INSN);
+
env->psret = 1;
- cwp = (env->cwp + 1) & (NWINDOWS - 1);
+ cwp = (env->cwp + 1) & (NWINDOWS - 1);
if (env->wim & (1 << cwp)) {
raise_exception(TT_WIN_UNF);
}
set_cwp(cwp);
env->psrs = env->psrps;
}
+#endif
void helper_ldfsr(void)
{
+ int rnd_mode;
switch (env->fsr & FSR_RD_MASK) {
case FSR_RD_NEAREST:
- fesetround(FE_TONEAREST);
+ rnd_mode = float_round_nearest_even;
break;
+ default:
case FSR_RD_ZERO:
- fesetround(FE_TOWARDZERO);
+ rnd_mode = float_round_to_zero;
break;
case FSR_RD_POS:
- fesetround(FE_UPWARD);
+ rnd_mode = float_round_up;
break;
case FSR_RD_NEG:
- fesetround(FE_DOWNWARD);
+ rnd_mode = float_round_down;
break;
}
+ set_float_rounding_mode(rnd_mode, &env->fp_status);
}
-void cpu_get_fp64(uint64_t *pmant, uint16_t *pexp, double f)
+void helper_debug()
{
- int exptemp;
+ env->exception_index = EXCP_DEBUG;
+ cpu_loop_exit();
+}
- *pmant = ldexp(frexp(f, &exptemp), 53);
- *pexp = exptemp;
+#ifndef TARGET_SPARC64
+void do_wrpsr()
+{
+ if ((T0 & PSR_CWP) >= NWINDOWS)
+ raise_exception(TT_ILL_INSN);
+ else
+ PUT_PSR(env, T0);
}
-double cpu_put_fp64(uint64_t mant, uint16_t exp)
+void do_rdpsr()
{
- return ldexp((double) mant, exp - 53);
+ T0 = GET_PSR(env);
}
-void helper_debug()
+#else
+
+void do_popc()
{
- env->exception_index = EXCP_DEBUG;
- cpu_loop_exit();
+ T0 = (T1 & 0x5555555555555555ULL) + ((T1 >> 1) & 0x5555555555555555ULL);
+ T0 = (T0 & 0x3333333333333333ULL) + ((T0 >> 2) & 0x3333333333333333ULL);
+ T0 = (T0 & 0x0f0f0f0f0f0f0f0fULL) + ((T0 >> 4) & 0x0f0f0f0f0f0f0f0fULL);
+ T0 = (T0 & 0x00ff00ff00ff00ffULL) + ((T0 >> 8) & 0x00ff00ff00ff00ffULL);
+ T0 = (T0 & 0x0000ffff0000ffffULL) + ((T0 >> 16) & 0x0000ffff0000ffffULL);
+ T0 = (T0 & 0x00000000ffffffffULL) + ((T0 >> 32) & 0x00000000ffffffffULL);
}
-void do_wrpsr()
+static inline uint64_t *get_gregset(uint64_t pstate)
{
- PUT_PSR(env, T0);
+ switch (pstate) {
+ default:
+ case 0:
+ return env->bgregs;
+ case PS_AG:
+ return env->agregs;
+ case PS_MG:
+ return env->mgregs;
+ case PS_IG:
+ return env->igregs;
+ }
}
-void do_rdpsr()
+static inline void change_pstate(uint64_t new_pstate)
{
- T0 = GET_PSR(env);
+ uint64_t pstate_regs, new_pstate_regs;
+ uint64_t *src, *dst;
+
+ pstate_regs = env->pstate & 0xc01;
+ new_pstate_regs = new_pstate & 0xc01;
+ if (new_pstate_regs != pstate_regs) {
+ // Switch global register bank
+ src = get_gregset(new_pstate_regs);
+ dst = get_gregset(pstate_regs);
+ memcpy32(dst, env->gregs);
+ memcpy32(env->gregs, src);
+ }
+ env->pstate = new_pstate;
+}
+
+void do_wrpstate(void)
+{
+ change_pstate(T0 & 0xf3f);
+}
+
+void do_done(void)
+{
+ env->tl--;
+ env->pc = env->tnpc[env->tl];
+ env->npc = env->tnpc[env->tl] + 4;
+ PUT_CCR(env, env->tstate[env->tl] >> 32);
+ env->asi = (env->tstate[env->tl] >> 24) & 0xff;
+ change_pstate((env->tstate[env->tl] >> 8) & 0xf3f);
+ PUT_CWP64(env, env->tstate[env->tl] & 0xff);
+}
+
+void do_retry(void)
+{
+ env->tl--;
+ env->pc = env->tpc[env->tl];
+ env->npc = env->tnpc[env->tl];
+ PUT_CCR(env, env->tstate[env->tl] >> 32);
+ env->asi = (env->tstate[env->tl] >> 24) & 0xff;
+ change_pstate((env->tstate[env->tl] >> 8) & 0xf3f);
+ PUT_CWP64(env, env->tstate[env->tl] & 0xff);
+}
+#endif
+
+void set_cwp(int new_cwp)
+{
+ /* put the modified wrap registers at their proper location */
+ if (env->cwp == (NWINDOWS - 1))
+ memcpy32(env->regbase, env->regbase + NWINDOWS * 16);
+ env->cwp = new_cwp;
+ /* put the wrap registers at their temporary location */
+ if (new_cwp == (NWINDOWS - 1))
+ memcpy32(env->regbase + NWINDOWS * 16, env->regbase);
+ env->regwptr = env->regbase + (new_cwp * 16);
+ REGWPTR = env->regwptr;
+}
+
+void cpu_set_cwp(CPUState *env1, int new_cwp)
+{
+ CPUState *saved_env;
+#ifdef reg_REGWPTR
+ target_ulong *saved_regwptr;
+#endif
+
+ saved_env = env;
+#ifdef reg_REGWPTR
+ saved_regwptr = REGWPTR;
+#endif
+ env = env1;
+ set_cwp(new_cwp);
+ env = saved_env;
+#ifdef reg_REGWPTR
+ REGWPTR = saved_regwptr;
+#endif
+}
+
+#ifdef TARGET_SPARC64
+void do_interrupt(int intno)
+{
+#ifdef DEBUG_PCALL
+ if (loglevel & CPU_LOG_INT) {
+ static int count;
+ fprintf(logfile, "%6d: v=%04x pc=%016" PRIx64 " npc=%016" PRIx64 " SP=%016" PRIx64 "\n",
+ count, intno,
+ env->pc,
+ env->npc, env->regwptr[6]);
+ cpu_dump_state(env, logfile, fprintf, 0);
+#if 0
+ {
+ int i;
+ uint8_t *ptr;
+
+ fprintf(logfile, " code=");
+ ptr = (uint8_t *)env->pc;
+ for(i = 0; i < 16; i++) {
+ fprintf(logfile, " %02x", ldub(ptr + i));
+ }
+ fprintf(logfile, "\n");
+ }
+#endif
+ count++;
+ }
+#endif
+#if !defined(CONFIG_USER_ONLY)
+ if (env->tl == MAXTL) {
+ cpu_abort(env, "Trap 0x%04x while trap level is MAXTL, Error state", env->exception_index);
+ return;
+ }
+#endif
+ env->tstate[env->tl] = ((uint64_t)GET_CCR(env) << 32) | ((env->asi & 0xff) << 24) |
+ ((env->pstate & 0xf3f) << 8) | GET_CWP64(env);
+ env->tpc[env->tl] = env->pc;
+ env->tnpc[env->tl] = env->npc;
+ env->tt[env->tl] = intno;
+ change_pstate(PS_PEF | PS_PRIV | PS_AG);
+
+ if (intno == TT_CLRWIN)
+ set_cwp((env->cwp - 1) & (NWINDOWS - 1));
+ else if ((intno & 0x1c0) == TT_SPILL)
+ set_cwp((env->cwp - env->cansave - 2) & (NWINDOWS - 1));
+ else if ((intno & 0x1c0) == TT_FILL)
+ set_cwp((env->cwp + 1) & (NWINDOWS - 1));
+ env->tbr &= ~0x7fffULL;
+ env->tbr |= ((env->tl > 1) ? 1 << 14 : 0) | (intno << 5);
+ if (env->tl < MAXTL - 1) {
+ env->tl++;
+ } else {
+ env->pstate |= PS_RED;
+ if (env->tl != MAXTL)
+ env->tl++;
+ }
+ env->pc = env->tbr;
+ env->npc = env->pc + 4;
+ env->exception_index = 0;
+}
+#else
+void do_interrupt(int intno)
+{
+ int cwp;
+
+#ifdef DEBUG_PCALL
+ if (loglevel & CPU_LOG_INT) {
+ static int count;
+ fprintf(logfile, "%6d: v=%02x pc=%08x npc=%08x SP=%08x\n",
+ count, intno,
+ env->pc,
+ env->npc, env->regwptr[6]);
+ cpu_dump_state(env, logfile, fprintf, 0);
+#if 0
+ {
+ int i;
+ uint8_t *ptr;
+
+ fprintf(logfile, " code=");
+ ptr = (uint8_t *)env->pc;
+ for(i = 0; i < 16; i++) {
+ fprintf(logfile, " %02x", ldub(ptr + i));
+ }
+ fprintf(logfile, "\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 = (env->cwp - 1) & (NWINDOWS - 1);
+ set_cwp(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 = 0;
+}
+#endif
+
+#if !defined(CONFIG_USER_ONLY)
+
+static void do_unaligned_access(target_ulong addr, int is_write, int is_user,
+ void *retaddr);
+
+#define MMUSUFFIX _mmu
+#define ALIGNED_ONLY
+#define GETPC() (__builtin_return_address(0))
+
+#define SHIFT 0
+#include "softmmu_template.h"
+
+#define SHIFT 1
+#include "softmmu_template.h"
+
+#define SHIFT 2
+#include "softmmu_template.h"
+
+#define SHIFT 3
+#include "softmmu_template.h"
+
+static void do_unaligned_access(target_ulong addr, int is_write, int is_user,
+ void *retaddr)
+{
+#ifdef DEBUG_UNALIGNED
+ printf("Unaligned access to 0x%x from 0x%x\n", addr, env->pc);
+#endif
+ raise_exception(TT_UNALIGNED);
}
+
+/* try to fill the TLB and return an exception if error. If retaddr is
+ NULL, it means that the function was called in C code (i.e. not
+ from generated code or from helper.c) */
+/* XXX: fix it to restore all registers */
+void tlb_fill(target_ulong addr, int is_write, int is_user, void *retaddr)
+{
+ TranslationBlock *tb;
+ int ret;
+ unsigned long pc;
+ CPUState *saved_env;
+
+ /* XXX: hack to restore env in all cases, even if not called from
+ generated code */
+ saved_env = env;
+ env = cpu_single_env;
+
+ ret = cpu_sparc_handle_mmu_fault(env, addr, is_write, is_user, 1);
+ if (ret) {
+ if (retaddr) {
+ /* now we have a real cpu fault */
+ pc = (unsigned long)retaddr;
+ tb = tb_find_pc(pc);
+ if (tb) {
+ /* the PC is inside the translated code. It means that we have
+ a virtual CPU fault */
+ cpu_restore_state(tb, env, pc, (void *)T2);
+ }
+ }
+ cpu_loop_exit();
+ }
+ env = saved_env;
+}
+
+#endif
+
+#ifndef TARGET_SPARC64
+void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
+ int is_asi)
+{
+ CPUState *saved_env;
+
+ /* XXX: hack to restore env in all cases, even if not called from
+ generated code */
+ saved_env = env;
+ env = cpu_single_env;
+ if (env->mmuregs[3]) /* Fault status register */
+ env->mmuregs[3] = 1; /* overflow (not read before another fault) */
+ if (is_asi)
+ env->mmuregs[3] |= 1 << 16;
+ if (env->psrs)
+ env->mmuregs[3] |= 1 << 5;
+ if (is_exec)
+ env->mmuregs[3] |= 1 << 6;
+ if (is_write)
+ env->mmuregs[3] |= 1 << 7;
+ env->mmuregs[3] |= (5 << 2) | 2;
+ env->mmuregs[4] = addr; /* Fault address register */
+ if ((env->mmuregs[0] & MMU_E) && !(env->mmuregs[0] & MMU_NF)) {
+#ifdef DEBUG_UNASSIGNED
+ printf("Unassigned mem access to " TARGET_FMT_plx " from " TARGET_FMT_lx
+ "\n", addr, env->pc);
+#endif
+ if (is_exec)
+ raise_exception(TT_CODE_ACCESS);
+ else
+ raise_exception(TT_DATA_ACCESS);
+ }
+ env = saved_env;
+}
+#else
+void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
+ int is_asi)
+{
+#ifdef DEBUG_UNASSIGNED
+ CPUState *saved_env;
+
+ /* XXX: hack to restore env in all cases, even if not called from
+ generated code */
+ saved_env = env;
+ env = cpu_single_env;
+ printf("Unassigned mem access to " TARGET_FMT_plx " from " TARGET_FMT_lx "\n",
+ addr, env->pc);
+ env = saved_env;
+#endif
+ if (is_exec)
+ raise_exception(TT_CODE_ACCESS);
+ else
+ raise_exception(TT_DATA_ACCESS);
+}
+#endif
+
+#ifdef TARGET_SPARC64
+void do_tick_set_count(void *opaque, uint64_t count)
+{
+#if !defined(CONFIG_USER_ONLY)
+ ptimer_set_count(opaque, -count);
+#endif
+}
+
+uint64_t do_tick_get_count(void *opaque)
+{
+#if !defined(CONFIG_USER_ONLY)
+ return -ptimer_get_count(opaque);
+#else
+ return 0;
+#endif
+}
+
+void do_tick_set_limit(void *opaque, uint64_t limit)
+{
+#if !defined(CONFIG_USER_ONLY)
+ ptimer_set_limit(opaque, -limit, 0);
+#endif
+}
+#endif
projects / mirror_qemu.git / blobdiff