* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#include <stdlib.h>
#include "exec.h"
-#define MIPS_DEBUG_DISAS
-
#define GETPC() (__builtin_return_address(0))
/*****************************************************************************/
/* Exceptions processing helpers */
-void cpu_loop_exit(void)
-{
- longjmp(env->jmp_env, 1);
-}
void do_raise_exception_err (uint32_t exception, int error_code)
{
cpu_restore_state (tb, env, pc, NULL);
}
-void do_raise_exception_direct (uint32_t exception)
+void do_raise_exception_direct_err (uint32_t exception, int error_code)
{
do_restore_state (GETPC ());
- do_raise_exception_err (exception, 0);
+ do_raise_exception_err (exception, error_code);
+}
+
+void do_raise_exception_direct (uint32_t exception)
+{
+ do_raise_exception_direct_err (exception, 0);
}
#define MEMSUFFIX _raw
#undef MEMSUFFIX
#endif
-#ifdef MIPS_HAS_MIPS64
+#ifdef TARGET_MIPS64
#if TARGET_LONG_BITS > HOST_LONG_BITS
/* Those might call libgcc functions. */
void do_dsll (void)
if (T1) {
tmp = T0 << (0x40 - T1);
T0 = (T0 >> T1) | tmp;
- } else
- T0 = T1;
+ }
}
void do_drotr32 (void)
if (T1) {
tmp = T0 << (0x40 - (32 + T1));
T0 = (T0 >> (32 + T1)) | tmp;
- } else
- T0 = T1;
+ }
}
void do_dsllv (void)
T0 = T1;
}
#endif /* TARGET_LONG_BITS > HOST_LONG_BITS */
-#endif /* MIPS_HAS_MIPS64 */
+#endif /* TARGET_MIPS64 */
/* 64 bits arithmetic for 32 bits hosts */
#if TARGET_LONG_BITS > HOST_LONG_BITS
}
#endif
-#ifdef MIPS_HAS_MIPS64
-void do_dmult (void)
-{
- /* XXX */
- set_HILO((int64_t)T0 * (int64_t)T1);
-}
-
-void do_dmultu (void)
+#if HOST_LONG_BITS < 64
+void do_div (void)
{
- /* XXX */
- set_HILO((uint64_t)T0 * (uint64_t)T1);
+ /* 64bit datatypes because we may see overflow/underflow. */
+ if (T1 != 0) {
+ env->LO = (int32_t)((int64_t)(int32_t)T0 / (int32_t)T1);
+ env->HI = (int32_t)((int64_t)(int32_t)T0 % (int32_t)T1);
+ }
}
+#endif
+#ifdef TARGET_MIPS64
void do_ddiv (void)
{
if (T1 != 0) {
- env->LO = (int64_t)T0 / (int64_t)T1;
- env->HI = (int64_t)T0 % (int64_t)T1;
+ lldiv_t res = lldiv((int64_t)T0, (int64_t)T1);
+ env->LO = res.quot;
+ env->HI = res.rem;
}
}
+#if TARGET_LONG_BITS > HOST_LONG_BITS
void do_ddivu (void)
{
if (T1 != 0) {
}
}
#endif
+#endif /* TARGET_MIPS64 */
#if defined(CONFIG_USER_ONLY)
void do_mfc0_random (void)
cpu_abort(env, "mtc0 status irqraise debug\n");
}
-void do_tlbwi (void)
-{
- cpu_abort(env, "tlbwi\n");
-}
-
-void do_tlbwr (void)
-{
- cpu_abort(env, "tlbwr\n");
-}
-
-void do_tlbp (void)
-{
- cpu_abort(env, "tlbp\n");
-}
-
-void do_tlbr (void)
-{
- cpu_abort(env, "tlbr\n");
-}
-
void cpu_mips_tlb_flush (CPUState *env, int flush_global)
{
cpu_abort(env, "mips_tlb_flush\n");
void do_mtc0_status_debug(uint32_t old, uint32_t val)
{
- const uint32_t mask = 0x0000FF00;
- fprintf(logfile, "Status %08x => %08x Cause %08x (%08x %08x %08x)\n",
- old, val, env->CP0_Cause, old & mask, val & mask,
- env->CP0_Cause & mask);
+ fprintf(logfile, "Status %08x (%08x) => %08x (%08x) Cause %08x",
+ old, old & env->CP0_Cause & CP0Ca_IP_mask,
+ val, val & env->CP0_Cause & CP0Ca_IP_mask,
+ env->CP0_Cause);
+ (env->hflags & MIPS_HFLAG_UM) ? fputs(", UM\n", logfile)
+ : fputs("\n", logfile);
}
void do_mtc0_status_irqraise_debug(void)
fprintf(logfile, "Raise pending IRQs\n");
}
-#ifdef MIPS_USES_FPU
-#include "softfloat.h"
-
void fpu_handle_exception(void)
{
#ifdef CONFIG_SOFTFLOAT
SET_FP_CAUSE(env->fcr31, 0);
#endif
}
-#endif /* MIPS_USES_FPU */
/* TLB management */
-#if defined(MIPS_USES_R4K_TLB)
void cpu_mips_tlb_flush (CPUState *env, int flush_global)
{
/* Flush qemu's TLB and discard all shadowed entries. */
tlb_flush (env, flush_global);
- env->tlb_in_use = MIPS_TLB_NB;
+ env->tlb_in_use = env->nb_tlb;
}
-static void mips_tlb_flush_extra (CPUState *env, int first)
+static void r4k_mips_tlb_flush_extra (CPUState *env, int first)
{
/* Discard entries from env->tlb[first] onwards. */
while (env->tlb_in_use > first) {
- invalidate_tlb(env, --env->tlb_in_use, 0);
+ r4k_invalidate_tlb(env, --env->tlb_in_use, 0);
}
}
-static void fill_tlb (int idx)
+static void r4k_fill_tlb (int idx)
{
- tlb_t *tlb;
+ r4k_tlb_t *tlb;
/* XXX: detect conflicting TLBs and raise a MCHECK exception when needed */
- tlb = &env->tlb[idx];
- tlb->VPN = env->CP0_EntryHi & ~(target_ulong)0x1FFF;
+ tlb = &env->mmu.r4k.tlb[idx];
+ tlb->VPN = env->CP0_EntryHi & (TARGET_PAGE_MASK << 1);
+#ifdef TARGET_MIPS64
+ tlb->VPN &= env->SEGMask;
+#endif
tlb->ASID = env->CP0_EntryHi & 0xFF;
tlb->PageMask = env->CP0_PageMask;
tlb->G = env->CP0_EntryLo0 & env->CP0_EntryLo1 & 1;
tlb->PFN[1] = (env->CP0_EntryLo1 >> 6) << 12;
}
-void do_tlbwi (void)
+void r4k_do_tlbwi (void)
{
/* Discard cached TLB entries. We could avoid doing this if the
tlbwi is just upgrading access permissions on the current entry;
that might be a further win. */
- mips_tlb_flush_extra (env, MIPS_TLB_NB);
+ r4k_mips_tlb_flush_extra (env, env->nb_tlb);
- /* Wildly undefined effects for CP0_Index containing a too high value and
- MIPS_TLB_NB not being a power of two. But so does real silicon. */
- invalidate_tlb(env, env->CP0_Index & (MIPS_TLB_NB - 1), 0);
- fill_tlb(env->CP0_Index & (MIPS_TLB_NB - 1));
+ r4k_invalidate_tlb(env, env->CP0_Index % env->nb_tlb, 0);
+ r4k_fill_tlb(env->CP0_Index % env->nb_tlb);
}
-void do_tlbwr (void)
+void r4k_do_tlbwr (void)
{
int r = cpu_mips_get_random(env);
- invalidate_tlb(env, r, 1);
- fill_tlb(r);
+ r4k_invalidate_tlb(env, r, 1);
+ r4k_fill_tlb(r);
}
-void do_tlbp (void)
+void r4k_do_tlbp (void)
{
- tlb_t *tlb;
+ r4k_tlb_t *tlb;
+ target_ulong mask;
target_ulong tag;
+ target_ulong VPN;
uint8_t ASID;
int i;
- tag = env->CP0_EntryHi & (int32_t)0xFFFFE000;
ASID = env->CP0_EntryHi & 0xFF;
- for (i = 0; i < MIPS_TLB_NB; i++) {
- tlb = &env->tlb[i];
+ for (i = 0; i < env->nb_tlb; i++) {
+ tlb = &env->mmu.r4k.tlb[i];
+ /* 1k pages are not supported. */
+ mask = tlb->PageMask | ~(TARGET_PAGE_MASK << 1);
+ tag = env->CP0_EntryHi & ~mask;
+ VPN = tlb->VPN & ~mask;
/* Check ASID, virtual page number & size */
- if ((tlb->G == 1 || tlb->ASID == ASID) && tlb->VPN == tag) {
+ if ((tlb->G == 1 || tlb->ASID == ASID) && VPN == tag) {
/* TLB match */
env->CP0_Index = i;
break;
}
}
- if (i == MIPS_TLB_NB) {
+ if (i == env->nb_tlb) {
/* No match. Discard any shadow entries, if any of them match. */
- for (i = MIPS_TLB_NB; i < env->tlb_in_use; i++) {
- tlb = &env->tlb[i];
-
+ for (i = env->nb_tlb; i < env->tlb_in_use; i++) {
+ tlb = &env->mmu.r4k.tlb[i];
+ /* 1k pages are not supported. */
+ mask = tlb->PageMask | ~(TARGET_PAGE_MASK << 1);
+ tag = env->CP0_EntryHi & ~mask;
+ VPN = tlb->VPN & ~mask;
/* Check ASID, virtual page number & size */
- if ((tlb->G == 1 || tlb->ASID == ASID) && tlb->VPN == tag) {
- mips_tlb_flush_extra (env, i);
+ if ((tlb->G == 1 || tlb->ASID == ASID) && VPN == tag) {
+ r4k_mips_tlb_flush_extra (env, i);
break;
}
}
}
}
-void do_tlbr (void)
+void r4k_do_tlbr (void)
{
- tlb_t *tlb;
+ r4k_tlb_t *tlb;
uint8_t ASID;
ASID = env->CP0_EntryHi & 0xFF;
- tlb = &env->tlb[env->CP0_Index & (MIPS_TLB_NB - 1)];
+ tlb = &env->mmu.r4k.tlb[env->CP0_Index % env->nb_tlb];
/* If this will change the current ASID, flush qemu's TLB. */
if (ASID != tlb->ASID)
cpu_mips_tlb_flush (env, 1);
- mips_tlb_flush_extra(env, MIPS_TLB_NB);
+ r4k_mips_tlb_flush_extra(env, env->nb_tlb);
env->CP0_EntryHi = tlb->VPN | tlb->ASID;
env->CP0_PageMask = tlb->PageMask;
env->CP0_EntryLo1 = tlb->G | (tlb->V1 << 1) | (tlb->D1 << 2) |
(tlb->C1 << 3) | (tlb->PFN[1] >> 6);
}
-#endif
#endif /* !CONFIG_USER_ONLY */
}
}
-void debug_eret (void)
+void debug_pre_eret (void)
{
- if (loglevel) {
- fprintf(logfile, "ERET: pc " TARGET_FMT_lx " EPC " TARGET_FMT_lx " ErrorEPC " TARGET_FMT_lx " (%d)\n",
- env->PC, env->CP0_EPC, env->CP0_ErrorEPC,
- env->hflags & MIPS_HFLAG_ERL ? 1 : 0);
- }
+ fprintf(logfile, "ERET: PC " TARGET_FMT_lx " EPC " TARGET_FMT_lx,
+ env->PC, env->CP0_EPC);
+ if (env->CP0_Status & (1 << CP0St_ERL))
+ fprintf(logfile, " ErrorEPC " TARGET_FMT_lx, env->CP0_ErrorEPC);
+ if (env->hflags & MIPS_HFLAG_DM)
+ fprintf(logfile, " DEPC " TARGET_FMT_lx, env->CP0_DEPC);
+ fputs("\n", logfile);
+}
+
+void debug_post_eret (void)
+{
+ fprintf(logfile, " => PC " TARGET_FMT_lx " EPC " TARGET_FMT_lx,
+ env->PC, env->CP0_EPC);
+ if (env->CP0_Status & (1 << CP0St_ERL))
+ fprintf(logfile, " ErrorEPC " TARGET_FMT_lx, env->CP0_ErrorEPC);
+ if (env->hflags & MIPS_HFLAG_DM)
+ fprintf(logfile, " DEPC " TARGET_FMT_lx, env->CP0_DEPC);
+ if (env->hflags & MIPS_HFLAG_UM)
+ fputs(", UM\n", logfile);
+ else
+ fputs("\n", logfile);
}
void do_pmon (int function)
}
#endif
+
+/* Complex FPU operations which may need stack space. */
+
+/* convert MIPS rounding mode in FCR31 to IEEE library */
+unsigned int ieee_rm[] = {
+ float_round_nearest_even,
+ float_round_to_zero,
+ float_round_up,
+ float_round_down
+};
+
+#define RESTORE_ROUNDING_MODE \
+ set_float_rounding_mode(ieee_rm[env->fcr31 & 3], &env->fp_status)
+
+void do_ctc1 (void)
+{
+ switch(T1) {
+ case 25:
+ if (T0 & 0xffffff00)
+ return;
+ env->fcr31 = (env->fcr31 & 0x017fffff) | ((T0 & 0xfe) << 24) |
+ ((T0 & 0x1) << 23);
+ break;
+ case 26:
+ if (T0 & 0x007c0000)
+ return;
+ env->fcr31 = (env->fcr31 & 0xfffc0f83) | (T0 & 0x0003f07c);
+ break;
+ case 28:
+ if (T0 & 0x007c0000)
+ return;
+ env->fcr31 = (env->fcr31 & 0xfefff07c) | (T0 & 0x00000f83) |
+ ((T0 & 0x4) << 22);
+ break;
+ case 31:
+ if (T0 & 0x007c0000)
+ return;
+ env->fcr31 = T0;
+ break;
+ default:
+ return;
+ }
+ /* set rounding mode */
+ RESTORE_ROUNDING_MODE;
+ set_float_exception_flags(0, &env->fp_status);
+ if ((GET_FP_ENABLE(env->fcr31) | 0x20) & GET_FP_CAUSE(env->fcr31))
+ do_raise_exception(EXCP_FPE);
+}
+
+inline char ieee_ex_to_mips(char xcpt)
+{
+ return (xcpt & float_flag_inexact) >> 5 |
+ (xcpt & float_flag_underflow) >> 3 |
+ (xcpt & float_flag_overflow) >> 1 |
+ (xcpt & float_flag_divbyzero) << 1 |
+ (xcpt & float_flag_invalid) << 4;
+}
+
+inline char mips_ex_to_ieee(char xcpt)
+{
+ return (xcpt & FP_INEXACT) << 5 |
+ (xcpt & FP_UNDERFLOW) << 3 |
+ (xcpt & FP_OVERFLOW) << 1 |
+ (xcpt & FP_DIV0) >> 1 |
+ (xcpt & FP_INVALID) >> 4;
+}
+
+inline void update_fcr31(void)
+{
+ int tmp = ieee_ex_to_mips(get_float_exception_flags(&env->fp_status));
+
+ SET_FP_CAUSE(env->fcr31, tmp);
+ if (GET_FP_ENABLE(env->fcr31) & tmp)
+ do_raise_exception(EXCP_FPE);
+ else
+ UPDATE_FP_FLAGS(env->fcr31, tmp);
+}
+
+#define FLOAT_OP(name, p) void do_float_##name##_##p(void)
+
+FLOAT_OP(cvtd, s)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ FDT2 = float32_to_float64(FST0, &env->fp_status);
+ update_fcr31();
+}
+FLOAT_OP(cvtd, w)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ FDT2 = int32_to_float64(WT0, &env->fp_status);
+ update_fcr31();
+}
+FLOAT_OP(cvtd, l)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ FDT2 = int64_to_float64(DT0, &env->fp_status);
+ update_fcr31();
+}
+FLOAT_OP(cvtl, d)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ DT2 = float64_to_int64(FDT0, &env->fp_status);
+ update_fcr31();
+ if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
+ DT2 = 0x7fffffffffffffffULL;
+}
+FLOAT_OP(cvtl, s)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ DT2 = float32_to_int64(FST0, &env->fp_status);
+ update_fcr31();
+ if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
+ DT2 = 0x7fffffffffffffffULL;
+}
+
+FLOAT_OP(cvtps, pw)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ FST2 = int32_to_float32(WT0, &env->fp_status);
+ FSTH2 = int32_to_float32(WTH0, &env->fp_status);
+ update_fcr31();
+}
+FLOAT_OP(cvtpw, ps)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ WT2 = float32_to_int32(FST0, &env->fp_status);
+ WTH2 = float32_to_int32(FSTH0, &env->fp_status);
+ update_fcr31();
+ if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
+ WT2 = 0x7fffffff;
+}
+FLOAT_OP(cvts, d)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ FST2 = float64_to_float32(FDT0, &env->fp_status);
+ update_fcr31();
+}
+FLOAT_OP(cvts, w)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ FST2 = int32_to_float32(WT0, &env->fp_status);
+ update_fcr31();
+}
+FLOAT_OP(cvts, l)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ FST2 = int64_to_float32(DT0, &env->fp_status);
+ update_fcr31();
+}
+FLOAT_OP(cvts, pl)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ WT2 = WT0;
+ update_fcr31();
+}
+FLOAT_OP(cvts, pu)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ WT2 = WTH0;
+ update_fcr31();
+}
+FLOAT_OP(cvtw, s)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ WT2 = float32_to_int32(FST0, &env->fp_status);
+ update_fcr31();
+ if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
+ WT2 = 0x7fffffff;
+}
+FLOAT_OP(cvtw, d)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ WT2 = float64_to_int32(FDT0, &env->fp_status);
+ update_fcr31();
+ if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
+ WT2 = 0x7fffffff;
+}
+
+FLOAT_OP(roundl, d)
+{
+ set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
+ DT2 = float64_round_to_int(FDT0, &env->fp_status);
+ RESTORE_ROUNDING_MODE;
+ update_fcr31();
+ if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
+ DT2 = 0x7fffffffffffffffULL;
+}
+FLOAT_OP(roundl, s)
+{
+ set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
+ DT2 = float32_round_to_int(FST0, &env->fp_status);
+ RESTORE_ROUNDING_MODE;
+ update_fcr31();
+ if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
+ DT2 = 0x7fffffffffffffffULL;
+}
+FLOAT_OP(roundw, d)
+{
+ set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
+ WT2 = float64_round_to_int(FDT0, &env->fp_status);
+ RESTORE_ROUNDING_MODE;
+ update_fcr31();
+ if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
+ WT2 = 0x7fffffff;
+}
+FLOAT_OP(roundw, s)
+{
+ set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
+ WT2 = float32_round_to_int(FST0, &env->fp_status);
+ RESTORE_ROUNDING_MODE;
+ update_fcr31();
+ if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
+ WT2 = 0x7fffffff;
+}
+
+FLOAT_OP(truncl, d)
+{
+ DT2 = float64_to_int64_round_to_zero(FDT0, &env->fp_status);
+ update_fcr31();
+ if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
+ DT2 = 0x7fffffffffffffffULL;
+}
+FLOAT_OP(truncl, s)
+{
+ DT2 = float32_to_int64_round_to_zero(FST0, &env->fp_status);
+ update_fcr31();
+ if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
+ DT2 = 0x7fffffffffffffffULL;
+}
+FLOAT_OP(truncw, d)
+{
+ WT2 = float64_to_int32_round_to_zero(FDT0, &env->fp_status);
+ update_fcr31();
+ if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
+ WT2 = 0x7fffffff;
+}
+FLOAT_OP(truncw, s)
+{
+ WT2 = float32_to_int32_round_to_zero(FST0, &env->fp_status);
+ update_fcr31();
+ if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
+ WT2 = 0x7fffffff;
+}
+
+FLOAT_OP(ceill, d)
+{
+ set_float_rounding_mode(float_round_up, &env->fp_status);
+ DT2 = float64_round_to_int(FDT0, &env->fp_status);
+ RESTORE_ROUNDING_MODE;
+ update_fcr31();
+ if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
+ DT2 = 0x7fffffffffffffffULL;
+}
+FLOAT_OP(ceill, s)
+{
+ set_float_rounding_mode(float_round_up, &env->fp_status);
+ DT2 = float32_round_to_int(FST0, &env->fp_status);
+ RESTORE_ROUNDING_MODE;
+ update_fcr31();
+ if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
+ DT2 = 0x7fffffffffffffffULL;
+}
+FLOAT_OP(ceilw, d)
+{
+ set_float_rounding_mode(float_round_up, &env->fp_status);
+ WT2 = float64_round_to_int(FDT0, &env->fp_status);
+ RESTORE_ROUNDING_MODE;
+ update_fcr31();
+ if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
+ WT2 = 0x7fffffff;
+}
+FLOAT_OP(ceilw, s)
+{
+ set_float_rounding_mode(float_round_up, &env->fp_status);
+ WT2 = float32_round_to_int(FST0, &env->fp_status);
+ RESTORE_ROUNDING_MODE;
+ update_fcr31();
+ if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
+ WT2 = 0x7fffffff;
+}
+
+FLOAT_OP(floorl, d)
+{
+ set_float_rounding_mode(float_round_down, &env->fp_status);
+ DT2 = float64_round_to_int(FDT0, &env->fp_status);
+ RESTORE_ROUNDING_MODE;
+ update_fcr31();
+ if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
+ DT2 = 0x7fffffffffffffffULL;
+}
+FLOAT_OP(floorl, s)
+{
+ set_float_rounding_mode(float_round_down, &env->fp_status);
+ DT2 = float32_round_to_int(FST0, &env->fp_status);
+ RESTORE_ROUNDING_MODE;
+ update_fcr31();
+ if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
+ DT2 = 0x7fffffffffffffffULL;
+}
+FLOAT_OP(floorw, d)
+{
+ set_float_rounding_mode(float_round_down, &env->fp_status);
+ WT2 = float64_round_to_int(FDT0, &env->fp_status);
+ RESTORE_ROUNDING_MODE;
+ update_fcr31();
+ if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
+ WT2 = 0x7fffffff;
+}
+FLOAT_OP(floorw, s)
+{
+ set_float_rounding_mode(float_round_down, &env->fp_status);
+ WT2 = float32_round_to_int(FST0, &env->fp_status);
+ RESTORE_ROUNDING_MODE;
+ update_fcr31();
+ if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
+ WT2 = 0x7fffffff;
+}
+
+/* unary operations, MIPS specific, s and d */
+#define FLOAT_UNOP(name) \
+FLOAT_OP(name, d) \
+{ \
+ set_float_exception_flags(0, &env->fp_status); \
+/* XXX: not implemented */ \
+/* FDT2 = float64_ ## name (FDT0, &env->fp_status);*/ \
+do_raise_exception(EXCP_RI); \
+ update_fcr31(); \
+} \
+FLOAT_OP(name, s) \
+{ \
+ set_float_exception_flags(0, &env->fp_status); \
+/* XXX: not implemented */ \
+/* FST2 = float32_ ## name (FST0, &env->fp_status);*/ \
+do_raise_exception(EXCP_RI); \
+ update_fcr31(); \
+}
+FLOAT_UNOP(rsqrt)
+FLOAT_UNOP(recip)
+#undef FLOAT_UNOP
+
+/* unary operations, MIPS specific, s, d and ps */
+#define FLOAT_UNOP(name) \
+FLOAT_OP(name, d) \
+{ \
+ set_float_exception_flags(0, &env->fp_status); \
+/* XXX: not implemented */ \
+/* FDT2 = float64_ ## name (FDT0, &env->fp_status);*/ \
+do_raise_exception(EXCP_RI); \
+ update_fcr31(); \
+} \
+FLOAT_OP(name, s) \
+{ \
+ set_float_exception_flags(0, &env->fp_status); \
+/* XXX: not implemented */ \
+/* FST2 = float32_ ## name (FST0, &env->fp_status);*/ \
+do_raise_exception(EXCP_RI); \
+ update_fcr31(); \
+} \
+FLOAT_OP(name, ps) \
+{ \
+ set_float_exception_flags(0, &env->fp_status); \
+/* XXX: not implemented */ \
+/* FST2 = float32_ ## name (FST0, &env->fp_status);*/ \
+/* FSTH2 = float32_ ## name (FSTH0, &env->fp_status);*/ \
+do_raise_exception(EXCP_RI); \
+ update_fcr31(); \
+}
+FLOAT_UNOP(rsqrt1)
+FLOAT_UNOP(recip1)
+#undef FLOAT_UNOP
+
+/* binary operations */
+#define FLOAT_BINOP(name) \
+FLOAT_OP(name, d) \
+{ \
+ set_float_exception_flags(0, &env->fp_status); \
+ FDT2 = float64_ ## name (FDT0, FDT1, &env->fp_status); \
+ update_fcr31(); \
+ if (GET_FP_CAUSE(env->fcr31) & FP_INVALID) \
+ FDT2 = 0x7ff7ffffffffffffULL; \
+ else if (GET_FP_CAUSE(env->fcr31) & FP_UNDERFLOW) { \
+ if ((env->fcr31 & 0x3) == 0) \
+ FDT2 &= 0x8000000000000000ULL; \
+ } \
+} \
+FLOAT_OP(name, s) \
+{ \
+ set_float_exception_flags(0, &env->fp_status); \
+ FST2 = float32_ ## name (FST0, FST1, &env->fp_status); \
+ update_fcr31(); \
+ if (GET_FP_CAUSE(env->fcr31) & FP_INVALID) \
+ FST2 = 0x7fbfffff; \
+ else if (GET_FP_CAUSE(env->fcr31) & FP_UNDERFLOW) { \
+ if ((env->fcr31 & 0x3) == 0) \
+ FST2 &= 0x80000000ULL; \
+ } \
+} \
+FLOAT_OP(name, ps) \
+{ \
+ set_float_exception_flags(0, &env->fp_status); \
+ FST2 = float32_ ## name (FST0, FST1, &env->fp_status); \
+ FSTH2 = float32_ ## name (FSTH0, FSTH1, &env->fp_status); \
+ update_fcr31(); \
+ if (GET_FP_CAUSE(env->fcr31) & FP_INVALID) { \
+ FST2 = 0x7fbfffff; \
+ FSTH2 = 0x7fbfffff; \
+ } else if (GET_FP_CAUSE(env->fcr31) & FP_UNDERFLOW) { \
+ if ((env->fcr31 & 0x3) == 0) { \
+ FST2 &= 0x80000000ULL; \
+ FSTH2 &= 0x80000000ULL; \
+ } \
+ } \
+}
+FLOAT_BINOP(add)
+FLOAT_BINOP(sub)
+FLOAT_BINOP(mul)
+FLOAT_BINOP(div)
+#undef FLOAT_BINOP
+
+/* binary operations, MIPS specific */
+#define FLOAT_BINOP(name) \
+FLOAT_OP(name, d) \
+{ \
+ set_float_exception_flags(0, &env->fp_status); \
+/* XXX: not implemented */ \
+/* FDT2 = float64_ ## name (FDT0, FDT1, &env->fp_status);*/ \
+do_raise_exception(EXCP_RI); \
+ update_fcr31(); \
+} \
+FLOAT_OP(name, s) \
+{ \
+ set_float_exception_flags(0, &env->fp_status); \
+/* XXX: not implemented */ \
+/* FST2 = float32_ ## name (FST0, FST1, &env->fp_status);*/ \
+do_raise_exception(EXCP_RI); \
+ update_fcr31(); \
+} \
+FLOAT_OP(name, ps) \
+{ \
+ set_float_exception_flags(0, &env->fp_status); \
+/* XXX: not implemented */ \
+/* FST2 = float32_ ## name (FST0, FST1, &env->fp_status);*/ \
+/* FSTH2 = float32_ ## name (FSTH0, FSTH1, &env->fp_status);*/ \
+do_raise_exception(EXCP_RI); \
+ update_fcr31(); \
+}
+FLOAT_BINOP(rsqrt2)
+FLOAT_BINOP(recip2)
+#undef FLOAT_BINOP
+
+FLOAT_OP(addr, ps)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ FST2 = float32_add (FST0, FSTH0, &env->fp_status);
+ FSTH2 = float32_add (FST1, FSTH1, &env->fp_status);
+ update_fcr31();
+}
+
+FLOAT_OP(mulr, ps)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ FST2 = float32_mul (FST0, FSTH0, &env->fp_status);
+ FSTH2 = float32_mul (FST1, FSTH1, &env->fp_status);
+ update_fcr31();
+}
+
+#define FOP_COND_D(op, cond) \
+void do_cmp_d_ ## op (long cc) \
+{ \
+ int c = cond; \
+ update_fcr31(); \
+ if (c) \
+ SET_FP_COND(cc, env); \
+ else \
+ CLEAR_FP_COND(cc, env); \
+} \
+void do_cmpabs_d_ ## op (long cc) \
+{ \
+ int c; \
+ FDT0 &= ~(1ULL << 63); \
+ FDT1 &= ~(1ULL << 63); \
+ c = cond; \
+ update_fcr31(); \
+ if (c) \
+ SET_FP_COND(cc, env); \
+ else \
+ CLEAR_FP_COND(cc, env); \
+}
+
+int float64_is_unordered(int sig, float64 a, float64 b STATUS_PARAM)
+{
+ if (float64_is_signaling_nan(a) ||
+ float64_is_signaling_nan(b) ||
+ (sig && (float64_is_nan(a) || float64_is_nan(b)))) {
+ float_raise(float_flag_invalid, status);
+ return 1;
+ } else if (float64_is_nan(a) || float64_is_nan(b)) {
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
+/* NOTE: the comma operator will make "cond" to eval to false,
+ * but float*_is_unordered() is still called. */
+FOP_COND_D(f, (float64_is_unordered(0, FDT1, FDT0, &env->fp_status), 0))
+FOP_COND_D(un, float64_is_unordered(0, FDT1, FDT0, &env->fp_status))
+FOP_COND_D(eq, !float64_is_unordered(0, FDT1, FDT0, &env->fp_status) && float64_eq(FDT0, FDT1, &env->fp_status))
+FOP_COND_D(ueq, float64_is_unordered(0, FDT1, FDT0, &env->fp_status) || float64_eq(FDT0, FDT1, &env->fp_status))
+FOP_COND_D(olt, !float64_is_unordered(0, FDT1, FDT0, &env->fp_status) && float64_lt(FDT0, FDT1, &env->fp_status))
+FOP_COND_D(ult, float64_is_unordered(0, FDT1, FDT0, &env->fp_status) || float64_lt(FDT0, FDT1, &env->fp_status))
+FOP_COND_D(ole, !float64_is_unordered(0, FDT1, FDT0, &env->fp_status) && float64_le(FDT0, FDT1, &env->fp_status))
+FOP_COND_D(ule, float64_is_unordered(0, FDT1, FDT0, &env->fp_status) || float64_le(FDT0, FDT1, &env->fp_status))
+/* NOTE: the comma operator will make "cond" to eval to false,
+ * but float*_is_unordered() is still called. */
+FOP_COND_D(sf, (float64_is_unordered(1, FDT1, FDT0, &env->fp_status), 0))
+FOP_COND_D(ngle,float64_is_unordered(1, FDT1, FDT0, &env->fp_status))
+FOP_COND_D(seq, !float64_is_unordered(1, FDT1, FDT0, &env->fp_status) && float64_eq(FDT0, FDT1, &env->fp_status))
+FOP_COND_D(ngl, float64_is_unordered(1, FDT1, FDT0, &env->fp_status) || float64_eq(FDT0, FDT1, &env->fp_status))
+FOP_COND_D(lt, !float64_is_unordered(1, FDT1, FDT0, &env->fp_status) && float64_lt(FDT0, FDT1, &env->fp_status))
+FOP_COND_D(nge, float64_is_unordered(1, FDT1, FDT0, &env->fp_status) || float64_lt(FDT0, FDT1, &env->fp_status))
+FOP_COND_D(le, !float64_is_unordered(1, FDT1, FDT0, &env->fp_status) && float64_le(FDT0, FDT1, &env->fp_status))
+FOP_COND_D(ngt, float64_is_unordered(1, FDT1, FDT0, &env->fp_status) || float64_le(FDT0, FDT1, &env->fp_status))
+
+#define FOP_COND_S(op, cond) \
+void do_cmp_s_ ## op (long cc) \
+{ \
+ int c = cond; \
+ update_fcr31(); \
+ if (c) \
+ SET_FP_COND(cc, env); \
+ else \
+ CLEAR_FP_COND(cc, env); \
+} \
+void do_cmpabs_s_ ## op (long cc) \
+{ \
+ int c; \
+ FST0 &= ~(1 << 31); \
+ FST1 &= ~(1 << 31); \
+ c = cond; \
+ update_fcr31(); \
+ if (c) \
+ SET_FP_COND(cc, env); \
+ else \
+ CLEAR_FP_COND(cc, env); \
+}
+
+flag float32_is_unordered(int sig, float32 a, float32 b STATUS_PARAM)
+{
+ if (float32_is_signaling_nan(a) ||
+ float32_is_signaling_nan(b) ||
+ (sig && (float32_is_nan(a) || float32_is_nan(b)))) {
+ float_raise(float_flag_invalid, status);
+ return 1;
+ } else if (float32_is_nan(a) || float32_is_nan(b)) {
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
+/* NOTE: the comma operator will make "cond" to eval to false,
+ * but float*_is_unordered() is still called. */
+FOP_COND_S(f, (float32_is_unordered(0, FST1, FST0, &env->fp_status), 0))
+FOP_COND_S(un, float32_is_unordered(0, FST1, FST0, &env->fp_status))
+FOP_COND_S(eq, !float32_is_unordered(0, FST1, FST0, &env->fp_status) && float32_eq(FST0, FST1, &env->fp_status))
+FOP_COND_S(ueq, float32_is_unordered(0, FST1, FST0, &env->fp_status) || float32_eq(FST0, FST1, &env->fp_status))
+FOP_COND_S(olt, !float32_is_unordered(0, FST1, FST0, &env->fp_status) && float32_lt(FST0, FST1, &env->fp_status))
+FOP_COND_S(ult, float32_is_unordered(0, FST1, FST0, &env->fp_status) || float32_lt(FST0, FST1, &env->fp_status))
+FOP_COND_S(ole, !float32_is_unordered(0, FST1, FST0, &env->fp_status) && float32_le(FST0, FST1, &env->fp_status))
+FOP_COND_S(ule, float32_is_unordered(0, FST1, FST0, &env->fp_status) || float32_le(FST0, FST1, &env->fp_status))
+/* NOTE: the comma operator will make "cond" to eval to false,
+ * but float*_is_unordered() is still called. */
+FOP_COND_S(sf, (float32_is_unordered(1, FST1, FST0, &env->fp_status), 0))
+FOP_COND_S(ngle,float32_is_unordered(1, FST1, FST0, &env->fp_status))
+FOP_COND_S(seq, !float32_is_unordered(1, FST1, FST0, &env->fp_status) && float32_eq(FST0, FST1, &env->fp_status))
+FOP_COND_S(ngl, float32_is_unordered(1, FST1, FST0, &env->fp_status) || float32_eq(FST0, FST1, &env->fp_status))
+FOP_COND_S(lt, !float32_is_unordered(1, FST1, FST0, &env->fp_status) && float32_lt(FST0, FST1, &env->fp_status))
+FOP_COND_S(nge, float32_is_unordered(1, FST1, FST0, &env->fp_status) || float32_lt(FST0, FST1, &env->fp_status))
+FOP_COND_S(le, !float32_is_unordered(1, FST1, FST0, &env->fp_status) && float32_le(FST0, FST1, &env->fp_status))
+FOP_COND_S(ngt, float32_is_unordered(1, FST1, FST0, &env->fp_status) || float32_le(FST0, FST1, &env->fp_status))
+
+#define FOP_COND_PS(op, condl, condh) \
+void do_cmp_ps_ ## op (long cc) \
+{ \
+ int cl = condl; \
+ int ch = condh; \
+ update_fcr31(); \
+ if (cl) \
+ SET_FP_COND(cc, env); \
+ else \
+ CLEAR_FP_COND(cc, env); \
+ if (ch) \
+ SET_FP_COND(cc + 1, env); \
+ else \
+ CLEAR_FP_COND(cc + 1, env); \
+} \
+void do_cmpabs_ps_ ## op (long cc) \
+{ \
+ int cl, ch; \
+ FST0 &= ~(1 << 31); \
+ FSTH0 &= ~(1 << 31); \
+ FST1 &= ~(1 << 31); \
+ FSTH1 &= ~(1 << 31); \
+ cl = condl; \
+ ch = condh; \
+ update_fcr31(); \
+ if (cl) \
+ SET_FP_COND(cc, env); \
+ else \
+ CLEAR_FP_COND(cc, env); \
+ if (ch) \
+ SET_FP_COND(cc + 1, env); \
+ else \
+ CLEAR_FP_COND(cc + 1, env); \
+}
+
+/* NOTE: the comma operator will make "cond" to eval to false,
+ * but float*_is_unordered() is still called. */
+FOP_COND_PS(f, (float32_is_unordered(0, FST1, FST0, &env->fp_status), 0),
+ (float32_is_unordered(0, FSTH1, FSTH0, &env->fp_status), 0))
+FOP_COND_PS(un, float32_is_unordered(0, FST1, FST0, &env->fp_status),
+ float32_is_unordered(0, FSTH1, FSTH0, &env->fp_status))
+FOP_COND_PS(eq, !float32_is_unordered(0, FST1, FST0, &env->fp_status) && float32_eq(FST0, FST1, &env->fp_status),
+ !float32_is_unordered(0, FSTH1, FSTH0, &env->fp_status) && float32_eq(FSTH0, FSTH1, &env->fp_status))
+FOP_COND_PS(ueq, float32_is_unordered(0, FST1, FST0, &env->fp_status) || float32_eq(FST0, FST1, &env->fp_status),
+ float32_is_unordered(0, FSTH1, FSTH0, &env->fp_status) || float32_eq(FSTH0, FSTH1, &env->fp_status))
+FOP_COND_PS(olt, !float32_is_unordered(0, FST1, FST0, &env->fp_status) && float32_lt(FST0, FST1, &env->fp_status),
+ !float32_is_unordered(0, FSTH1, FSTH0, &env->fp_status) && float32_lt(FSTH0, FSTH1, &env->fp_status))
+FOP_COND_PS(ult, float32_is_unordered(0, FST1, FST0, &env->fp_status) || float32_lt(FST0, FST1, &env->fp_status),
+ float32_is_unordered(0, FSTH1, FSTH0, &env->fp_status) || float32_lt(FSTH0, FSTH1, &env->fp_status))
+FOP_COND_PS(ole, !float32_is_unordered(0, FST1, FST0, &env->fp_status) && float32_le(FST0, FST1, &env->fp_status),
+ !float32_is_unordered(0, FSTH1, FSTH0, &env->fp_status) && float32_le(FSTH0, FSTH1, &env->fp_status))
+FOP_COND_PS(ule, float32_is_unordered(0, FST1, FST0, &env->fp_status) || float32_le(FST0, FST1, &env->fp_status),
+ float32_is_unordered(0, FSTH1, FSTH0, &env->fp_status) || float32_le(FSTH0, FSTH1, &env->fp_status))
+/* NOTE: the comma operator will make "cond" to eval to false,
+ * but float*_is_unordered() is still called. */
+FOP_COND_PS(sf, (float32_is_unordered(1, FST1, FST0, &env->fp_status), 0),
+ (float32_is_unordered(1, FSTH1, FSTH0, &env->fp_status), 0))
+FOP_COND_PS(ngle,float32_is_unordered(1, FST1, FST0, &env->fp_status),
+ float32_is_unordered(1, FSTH1, FSTH0, &env->fp_status))
+FOP_COND_PS(seq, !float32_is_unordered(1, FST1, FST0, &env->fp_status) && float32_eq(FST0, FST1, &env->fp_status),
+ !float32_is_unordered(1, FSTH1, FSTH0, &env->fp_status) && float32_eq(FSTH0, FSTH1, &env->fp_status))
+FOP_COND_PS(ngl, float32_is_unordered(1, FST1, FST0, &env->fp_status) || float32_eq(FST0, FST1, &env->fp_status),
+ float32_is_unordered(1, FSTH1, FSTH0, &env->fp_status) || float32_eq(FSTH0, FSTH1, &env->fp_status))
+FOP_COND_PS(lt, !float32_is_unordered(1, FST1, FST0, &env->fp_status) && float32_lt(FST0, FST1, &env->fp_status),
+ !float32_is_unordered(1, FSTH1, FSTH0, &env->fp_status) && float32_lt(FSTH0, FSTH1, &env->fp_status))
+FOP_COND_PS(nge, float32_is_unordered(1, FST1, FST0, &env->fp_status) || float32_lt(FST0, FST1, &env->fp_status),
+ float32_is_unordered(1, FSTH1, FSTH0, &env->fp_status) || float32_lt(FSTH0, FSTH1, &env->fp_status))
+FOP_COND_PS(le, !float32_is_unordered(1, FST1, FST0, &env->fp_status) && float32_le(FST0, FST1, &env->fp_status),
+ !float32_is_unordered(1, FSTH1, FSTH0, &env->fp_status) && float32_le(FSTH0, FSTH1, &env->fp_status))
+FOP_COND_PS(ngt, float32_is_unordered(1, FST1, FST0, &env->fp_status) || float32_le(FST0, FST1, &env->fp_status),
+ float32_is_unordered(1, FSTH1, FSTH0, &env->fp_status) || float32_le(FSTH0, FSTH1, &env->fp_status))
projects / qemu.git / blobdiff