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SPARC merge

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1179 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2004-12-19 23:18:01 +00:00
parent 9772c73bbc
commit e80cfcfc88
37 changed files with 4507 additions and 1155 deletions
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176
target-sparc/op_helper.c
View file

@ -2,6 +2,8 @@
#include <fenv.h>
#include "exec.h"
//#define DEBUG_MMU
#ifdef USE_INT_TO_FLOAT_HELPERS
void do_fitos(void)
{
@ -33,6 +35,13 @@ 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) {
@ -47,6 +56,13 @@ void do_fcmpd (void)
{
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) {
@ -59,55 +75,131 @@ void do_fcmpd (void)
void helper_ld_asi(int asi, int size, int sign)
{
switch(asi) {
uint32_t ret;
switch (asi) {
case 3: /* MMU probe */
T1 = 0;
return;
{
int mmulev;
mmulev = (T0 >> 8) & 15;
if (mmulev > 4)
ret = 0;
else {
ret = mmu_probe(T0, mmulev);
//bswap32s(&ret);
}
#ifdef DEBUG_MMU
printf("mmu_probe: 0x%08x (lev %d) -> 0x%08x\n", T0, mmulev, ret);
#endif
}
break;
case 4: /* read MMU regs */
{
int temp, reg = (T0 >> 8) & 0xf;
int reg = (T0 >> 8) & 0xf;
temp = env->mmuregs[reg];
ret = env->mmuregs[reg];
if (reg == 3 || reg == 4) /* Fault status, addr cleared on read*/
env->mmuregs[reg] = 0;
T1 = temp;
env->mmuregs[4] = 0;
}
return;
break;
case 0x20 ... 0x2f: /* MMU passthrough */
{
int temp;
cpu_physical_memory_read(T0, (void *) &temp, size);
bswap32s(&temp);
T1 = temp;
}
return;
cpu_physical_memory_read(T0, (void *) &ret, size);
if (size == 4)
bswap32s(&ret);
else if (size == 2)
bswap16s(&ret);
break;
default:
T1 = 0;
return;
ret = 0;
break;
}
T1 = ret;
}
void helper_st_asi(int asi, int size, int sign)
{
switch(asi) {
case 3: /* MMU flush */
return;
{
int mmulev;
mmulev = (T0 >> 8) & 15;
switch (mmulev) {
case 0: // flush page
tlb_flush_page(cpu_single_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);
break;
default:
break;
}
dump_mmu();
return;
}
case 4: /* write MMU regs */
{
int reg = (T0 >> 8) & 0xf;
int reg = (T0 >> 8) & 0xf, oldreg;
oldreg = env->mmuregs[reg];
if (reg == 0) {
env->mmuregs[reg] &= ~(MMU_E | MMU_NF);
env->mmuregs[reg] |= T1 & (MMU_E | MMU_NF);
} else
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();
#endif
}
dump_mmu();
return;
}
case 0x17: /* Block copy, sta access */
{
// value (T1) = src
// address (T0) = dst
// copy 32 bytes
int src = T1, dst = T0;
uint8_t temp[32];
bswap32s(&src);
cpu_physical_memory_read(src, (void *) &temp, 32);
cpu_physical_memory_write(dst, (void *) &temp, 32);
}
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;
bswap64s(&val);
for (i = 0; i < 32; i += 8, dst += 8) {
cpu_physical_memory_write(dst, (void *) &val, 8);
}
}
return;
case 0x20 ... 0x2f: /* MMU passthrough */
{
int temp = T1;
bswap32s(&temp);
if (size == 4)
bswap32s(&temp);
else if (size == 2)
bswap16s(&temp);
cpu_physical_memory_write(T0, (void *) &temp, size);
}
return;
@ -116,27 +208,6 @@ void helper_st_asi(int asi, int size, int sign)
}
}
#if 0
void do_ldd_raw(uint32_t addr)
{
T1 = ldl_raw((void *) addr);
T0 = ldl_raw((void *) (addr + 4));
}
#if !defined(CONFIG_USER_ONLY)
void do_ldd_user(uint32_t addr)
{
T1 = ldl_user((void *) addr);
T0 = ldl_user((void *) (addr + 4));
}
void do_ldd_kernel(uint32_t addr)
{
T1 = ldl_kernel((void *) addr);
T0 = ldl_kernel((void *) (addr + 4));
}
#endif
#endif
void helper_rett()
{
int cwp;
@ -166,3 +237,22 @@ void helper_ldfsr(void)
break;
}
}
void cpu_get_fp64(uint64_t *pmant, uint16_t *pexp, double f)
{
int exptemp;
*pmant = ldexp(frexp(f, &exptemp), 53);
*pexp = exptemp;
}
double cpu_put_fp64(uint64_t mant, uint16_t exp)
{
return ldexp((double) mant, exp - 53);
}
void helper_debug()
{
env->exception_index = EXCP_DEBUG;
cpu_loop_exit();
}