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-rw-r--r--target-alpha/op_helper.c1255
1 files changed, 1255 insertions, 0 deletions
diff --git a/target-alpha/op_helper.c b/target-alpha/op_helper.c
new file mode 100644
index 0000000000..746665a429
--- /dev/null
+++ b/target-alpha/op_helper.c
@@ -0,0 +1,1255 @@
+/*
+ * Alpha emulation cpu micro-operations helpers for qemu.
+ *
+ * Copyright (c) 2007 Jocelyn Mayer
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * 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 "exec.h"
+#include "softfloat.h"
+
+#include "op_helper.h"
+
+#define MEMSUFFIX _raw
+#include "op_helper_mem.h"
+
+#if !defined(CONFIG_USER_ONLY)
+#define MEMSUFFIX _user
+#include "op_helper_mem.h"
+
+#define MEMSUFFIX _kernel
+#include "op_helper_mem.h"
+
+/* Those are used for supervisor and executive modes */
+#define MEMSUFFIX _data
+#include "op_helper_mem.h"
+#endif
+
+void helper_tb_flush (void)
+{
+ tlb_flush(env, 1);
+}
+
+void cpu_dump_EA (target_ulong EA);
+void helper_print_mem_EA (target_ulong EA)
+{
+ cpu_dump_EA(EA);
+}
+
+/*****************************************************************************/
+/* Exceptions processing helpers */
+void helper_excp (uint32_t excp, uint32_t error)
+{
+ env->exception_index = excp;
+ env->error_code = error;
+ cpu_loop_exit();
+}
+
+void helper_amask (void)
+{
+ switch (env->implver) {
+ case IMPLVER_2106x:
+ /* EV4, EV45, LCA, LCA45 & EV5 */
+ break;
+ case IMPLVER_21164:
+ case IMPLVER_21264:
+ case IMPLVER_21364:
+ T0 &= ~env->amask;
+ break;
+ }
+}
+
+void helper_load_pcc (void)
+{
+ /* XXX: TODO */
+ T0 = 0;
+}
+
+void helper_load_implver (void)
+{
+ T0 = env->implver;
+}
+
+void helper_load_fpcr (void)
+{
+ T0 = 0;
+#ifdef CONFIG_SOFTFLOAT
+ T0 |= env->fp_status.float_exception_flags << 52;
+ if (env->fp_status.float_exception_flags)
+ T0 |= 1ULL << 63;
+ env->ipr[IPR_EXC_SUM] &= ~0x3E:
+ env->ipr[IPR_EXC_SUM] |= env->fp_status.float_exception_flags << 1;
+#endif
+ switch (env->fp_status.float_rounding_mode) {
+ case float_round_nearest_even:
+ T0 |= 2ULL << 58;
+ break;
+ case float_round_down:
+ T0 |= 1ULL << 58;
+ break;
+ case float_round_up:
+ T0 |= 3ULL << 58;
+ break;
+ case float_round_to_zero:
+ break;
+ }
+}
+
+void helper_store_fpcr (void)
+{
+#ifdef CONFIG_SOFTFLOAT
+ set_float_exception_flags((T0 >> 52) & 0x3F, &FP_STATUS);
+#endif
+ switch ((T0 >> 58) & 3) {
+ case 0:
+ set_float_rounding_mode(float_round_to_zero, &FP_STATUS);
+ break;
+ case 1:
+ set_float_rounding_mode(float_round_down, &FP_STATUS);
+ break;
+ case 2:
+ set_float_rounding_mode(float_round_nearest_even, &FP_STATUS);
+ break;
+ case 3:
+ set_float_rounding_mode(float_round_up, &FP_STATUS);
+ break;
+ }
+}
+
+void helper_load_irf (void)
+{
+ /* XXX: TODO */
+ T0 = 0;
+}
+
+void helper_set_irf (void)
+{
+ /* XXX: TODO */
+}
+
+void helper_clear_irf (void)
+{
+ /* XXX: TODO */
+}
+
+void helper_addqv (void)
+{
+ T2 = T0;
+ T0 += T1;
+ if (unlikely((T2 ^ T1 ^ (-1ULL)) & (T2 ^ T0) & (1ULL << 63))) {
+ helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW);
+ }
+}
+
+void helper_addlv (void)
+{
+ T2 = T0;
+ T0 = (uint32_t)(T0 + T1);
+ if (unlikely((T2 ^ T1 ^ (-1UL)) & (T2 ^ T0) & (1UL << 31))) {
+ helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW);
+ }
+}
+
+void helper_subqv (void)
+{
+ T2 = T0;
+ T0 -= T1;
+ if (unlikely(((~T2) ^ T0 ^ (-1ULL)) & ((~T2) ^ T1) & (1ULL << 63))) {
+ helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW);
+ }
+}
+
+void helper_sublv (void)
+{
+ T2 = T0;
+ T0 = (uint32_t)(T0 - T1);
+ if (unlikely(((~T2) ^ T0 ^ (-1UL)) & ((~T2) ^ T1) & (1UL << 31))) {
+ helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW);
+ }
+}
+
+void helper_mullv (void)
+{
+ int64_t res = (int64_t)T0 * (int64_t)T1;
+
+ if (unlikely((int32_t)res != res)) {
+ helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW);
+ }
+ T0 = (int64_t)((int32_t)res);
+}
+
+void helper_mulqv ()
+{
+ uint64_t res, tmp0, tmp1;
+
+ res = (T0 >> 32) * (T1 >> 32);
+ tmp0 = ((T0 & 0xFFFFFFFF) * (T1 >> 32)) +
+ ((T0 >> 32) * (T1 & 0xFFFFFFFF));
+ tmp1 = (T0 & 0xFFFFFFFF) * (T1 & 0xFFFFFFFF);
+ tmp0 += tmp1 >> 32;
+ res += tmp0 >> 32;
+ T0 *= T1;
+ if (unlikely(res != 0)) {
+ helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW);
+ }
+}
+
+void helper_umulh (void)
+{
+ uint64_t tmp0, tmp1;
+
+ tmp0 = ((T0 & 0xFFFFFFFF) * (T1 >> 32)) +
+ ((T0 >> 32) * (T1 & 0xFFFFFFFF));
+ tmp1 = (T0 & 0xFFFFFFFF) * (T1 & 0xFFFFFFFF);
+ tmp0 += tmp1 >> 32;
+ T0 = (T0 >> 32) * (T0 >> 32);
+ T0 += tmp0 >> 32;
+}
+
+void helper_ctpop (void)
+{
+ int n;
+
+ for (n = 0; T0 != 0; n++)
+ T0 = T0 ^ (T0 - 1);
+ T0 = n;
+}
+
+void helper_ctlz (void)
+{
+ uint32_t op32;
+ int n;
+
+ n = 0;
+ if (!(T0 & 0xFFFFFFFF00000000ULL)) {
+ n += 32;
+ T0 <<= 32;
+ }
+ /* Make it easier for 32 bits hosts */
+ op32 = T0 >> 32;
+ if (!(op32 & 0xFFFF0000UL)) {
+ n += 16;
+ op32 <<= 16;
+ }
+ if (!(op32 & 0xFF000000UL)) {
+ n += 8;
+ op32 <<= 8;
+ }
+ if (!(op32 & 0xF0000000UL)) {
+ n += 4;
+ op32 <<= 4;
+ }
+ if (!(op32 & 0xC0000000UL)) {
+ n += 2;
+ op32 <<= 2;
+ }
+ if (!(op32 & 0x80000000UL)) {
+ n++;
+ op32 <<= 1;
+ }
+ if (!(op32 & 0x80000000UL)) {
+ n++;
+ }
+ T0 = n;
+}
+
+void helper_cttz (void)
+{
+ uint32_t op32;
+ int n;
+
+ n = 0;
+ if (!(T0 & 0x00000000FFFFFFFFULL)) {
+ n += 32;
+ T0 >>= 32;
+ }
+ /* Make it easier for 32 bits hosts */
+ op32 = T0;
+ if (!(op32 & 0x0000FFFFUL)) {
+ n += 16;
+ op32 >>= 16;
+ }
+ if (!(op32 & 0x000000FFUL)) {
+ n += 8;
+ op32 >>= 8;
+ }
+ if (!(op32 & 0x0000000FUL)) {
+ n += 4;
+ op32 >>= 4;
+ }
+ if (!(op32 & 0x00000003UL)) {
+ n += 2;
+ op32 >>= 2;
+ }
+ if (!(op32 & 0x00000001UL)) {
+ n++;
+ op32 >>= 1;
+ }
+ if (!(op32 & 0x00000001UL)) {
+ n++;
+ }
+ T0 = n;
+}
+
+static inline uint64_t byte_zap (uint64_t op, uint8_t mskb)
+{
+ uint64_t mask;
+
+ mask = 0;
+ mask |= ((mskb >> 0) & 1) * 0x00000000000000FFULL;
+ mask |= ((mskb >> 1) & 1) * 0x000000000000FF00ULL;
+ mask |= ((mskb >> 2) & 1) * 0x0000000000FF0000ULL;
+ mask |= ((mskb >> 3) & 1) * 0x00000000FF000000ULL;
+ mask |= ((mskb >> 4) & 1) * 0x000000FF00000000ULL;
+ mask |= ((mskb >> 5) & 1) * 0x0000FF0000000000ULL;
+ mask |= ((mskb >> 6) & 1) * 0x00FF000000000000ULL;
+ mask |= ((mskb >> 7) & 1) * 0xFF00000000000000ULL;
+
+ return op & ~mask;
+}
+
+void helper_mskbl (void)
+{
+ T0 = byte_zap(T0, 0x01 << (T1 & 7));
+}
+
+void helper_extbl (void)
+{
+ T0 >>= (T1 & 7) * 8;
+ T0 = byte_zap(T0, 0xFE);
+}
+
+void helper_insbl (void)
+{
+ T0 <<= (T1 & 7) * 8;
+ T0 = byte_zap(T0, ~(0x01 << (T1 & 7)));
+}
+
+void helper_mskwl (void)
+{
+ T0 = byte_zap(T0, 0x03 << (T1 & 7));
+}
+
+void helper_extwl (void)
+{
+ T0 >>= (T1 & 7) * 8;
+ T0 = byte_zap(T0, 0xFC);
+}
+
+void helper_inswl (void)
+{
+ T0 <<= (T1 & 7) * 8;
+ T0 = byte_zap(T0, ~(0x03 << (T1 & 7)));
+}
+
+void helper_mskll (void)
+{
+ T0 = byte_zap(T0, 0x0F << (T1 & 7));
+}
+
+void helper_extll (void)
+{
+ T0 >>= (T1 & 7) * 8;
+ T0 = byte_zap(T0, 0xF0);
+}
+
+void helper_insll (void)
+{
+ T0 <<= (T1 & 7) * 8;
+ T0 = byte_zap(T0, ~(0x0F << (T1 & 7)));
+}
+
+void helper_zap (void)
+{
+ T0 = byte_zap(T0, T1);
+}
+
+void helper_zapnot (void)
+{
+ T0 = byte_zap(T0, ~T1);
+}
+
+void helper_mskql (void)
+{
+ T0 = byte_zap(T0, 0xFF << (T1 & 7));
+}
+
+void helper_extql (void)
+{
+ T0 >>= (T1 & 7) * 8;
+ T0 = byte_zap(T0, 0x00);
+}
+
+void helper_insql (void)
+{
+ T0 <<= (T1 & 7) * 8;
+ T0 = byte_zap(T0, ~(0xFF << (T1 & 7)));
+}
+
+void helper_mskwh (void)
+{
+ T0 = byte_zap(T0, (0x03 << (T1 & 7)) >> 8);
+}
+
+void helper_inswh (void)
+{
+ T0 >>= 64 - ((T1 & 7) * 8);
+ T0 = byte_zap(T0, ~((0x03 << (T1 & 7)) >> 8));
+}
+
+void helper_extwh (void)
+{
+ T0 <<= 64 - ((T1 & 7) * 8);
+ T0 = byte_zap(T0, ~0x07);
+}
+
+void helper_msklh (void)
+{
+ T0 = byte_zap(T0, (0x0F << (T1 & 7)) >> 8);
+}
+
+void helper_inslh (void)
+{
+ T0 >>= 64 - ((T1 & 7) * 8);
+ T0 = byte_zap(T0, ~((0x0F << (T1 & 7)) >> 8));
+}
+
+void helper_extlh (void)
+{
+ T0 <<= 64 - ((T1 & 7) * 8);
+ T0 = byte_zap(T0, ~0x0F);
+}
+
+void helper_mskqh (void)
+{
+ T0 = byte_zap(T0, (0xFF << (T1 & 7)) >> 8);
+}
+
+void helper_insqh (void)
+{
+ T0 >>= 64 - ((T1 & 7) * 8);
+ T0 = byte_zap(T0, ~((0xFF << (T1 & 7)) >> 8));
+}
+
+void helper_extqh (void)
+{
+ T0 <<= 64 - ((T1 & 7) * 8);
+ T0 = byte_zap(T0, 0x00);
+}
+
+void helper_cmpbge (void)
+{
+ uint8_t opa, opb, res;
+ int i;
+
+ res = 0;
+ for (i = 0; i < 7; i++) {
+ opa = T0 >> (i * 8);
+ opb = T1 >> (i * 8);
+ if (opa >= opb)
+ res |= 1 << i;
+ }
+ T0 = res;
+}
+
+void helper_cmov_fir (int freg)
+{
+ if (FT0 != 0)
+ env->fir[freg] = FT1;
+}
+
+void helper_sqrts (void)
+{
+ FT0 = float32_sqrt(FT0, &FP_STATUS);
+}
+
+void helper_cpys (void)
+{
+ union {
+ double d;
+ uint64_t i;
+ } p, q, r;
+
+ p.d = FT0;
+ q.d = FT1;
+ r.i = p.i & 0x8000000000000000ULL;
+ r.i |= q.i & ~0x8000000000000000ULL;
+ FT0 = r.d;
+}
+
+void helper_cpysn (void)
+{
+ union {
+ double d;
+ uint64_t i;
+ } p, q, r;
+
+ p.d = FT0;
+ q.d = FT1;
+ r.i = (~p.i) & 0x8000000000000000ULL;
+ r.i |= q.i & ~0x8000000000000000ULL;
+ FT0 = r.d;
+}
+
+void helper_cpyse (void)
+{
+ union {
+ double d;
+ uint64_t i;
+ } p, q, r;
+
+ p.d = FT0;
+ q.d = FT1;
+ r.i = p.i & 0xFFF0000000000000ULL;
+ r.i |= q.i & ~0xFFF0000000000000ULL;
+ FT0 = r.d;
+}
+
+void helper_itofs (void)
+{
+ union {
+ double d;
+ uint64_t i;
+ } p;
+
+ p.d = FT0;
+ FT0 = int64_to_float32(p.i, &FP_STATUS);
+}
+
+void helper_ftois (void)
+{
+ union {
+ double d;
+ uint64_t i;
+ } p;
+
+ p.i = float32_to_int64(FT0, &FP_STATUS);
+ FT0 = p.d;
+}
+
+void helper_sqrtt (void)
+{
+ FT0 = float64_sqrt(FT0, &FP_STATUS);
+}
+
+void helper_cmptun (void)
+{
+ union {
+ double d;
+ uint64_t i;
+ } p;
+
+ p.i = 0;
+ if (float64_is_nan(FT0) || float64_is_nan(FT1))
+ p.i = 0x4000000000000000ULL;
+ FT0 = p.d;
+}
+
+void helper_cmpteq (void)
+{
+ union {
+ double d;
+ uint64_t i;
+ } p;
+
+ p.i = 0;
+ if (float64_eq(FT0, FT1, &FP_STATUS))
+ p.i = 0x4000000000000000ULL;
+ FT0 = p.d;
+}
+
+void helper_cmptle (void)
+{
+ union {
+ double d;
+ uint64_t i;
+ } p;
+
+ p.i = 0;
+ if (float64_le(FT0, FT1, &FP_STATUS))
+ p.i = 0x4000000000000000ULL;
+ FT0 = p.d;
+}
+
+void helper_cmptlt (void)
+{
+ union {
+ double d;
+ uint64_t i;
+ } p;
+
+ p.i = 0;
+ if (float64_lt(FT0, FT1, &FP_STATUS))
+ p.i = 0x4000000000000000ULL;
+ FT0 = p.d;
+}
+
+void helper_itoft (void)
+{
+ union {
+ double d;
+ uint64_t i;
+ } p;
+
+ p.d = FT0;
+ FT0 = int64_to_float64(p.i, &FP_STATUS);
+}
+
+void helper_ftoit (void)
+{
+ union {
+ double d;
+ uint64_t i;
+ } p;
+
+ p.i = float64_to_int64(FT0, &FP_STATUS);
+ FT0 = p.d;
+}
+
+static int vaxf_is_valid (float ff)
+{
+ union {
+ float f;
+ uint32_t i;
+ } p;
+ uint32_t exp, mant;
+
+ p.f = ff;
+ exp = (p.i >> 23) & 0xFF;
+ mant = p.i & 0x007FFFFF;
+ if (exp == 0 && ((p.i & 0x80000000) || mant != 0)) {
+ /* Reserved operands / Dirty zero */
+ return 0;
+ }
+
+ return 1;
+}
+
+static float vaxf_to_ieee32 (float ff)
+{
+ union {
+ float f;
+ uint32_t i;
+ } p;
+ uint32_t exp;
+
+ p.f = ff;
+ exp = (p.i >> 23) & 0xFF;
+ if (exp < 3) {
+ /* Underflow */
+ p.f = 0.0;
+ } else {
+ p.f *= 0.25;
+ }
+
+ return p.f;
+}
+
+static float ieee32_to_vaxf (float fi)
+{
+ union {
+ float f;
+ uint32_t i;
+ } p;
+ uint32_t exp, mant;
+
+ p.f = fi;
+ exp = (p.i >> 23) & 0xFF;
+ mant = p.i & 0x007FFFFF;
+ if (exp == 255) {
+ /* NaN or infinity */
+ p.i = 1;
+ } else if (exp == 0) {
+ if (mant == 0) {
+ /* Zero */
+ p.i = 0;
+ } else {
+ /* Denormalized */
+ p.f *= 2.0;
+ }
+ } else {
+ if (exp >= 253) {
+ /* Overflow */
+ p.i = 1;
+ } else {
+ p.f *= 4.0;
+ }
+ }
+
+ return p.f;
+}
+
+void helper_addf (void)
+{
+ float ft0, ft1, ft2;
+
+ if (!vaxf_is_valid(FT0) || !vaxf_is_valid(FT1)) {
+ /* XXX: TODO */
+ }
+ ft0 = vaxf_to_ieee32(FT0);
+ ft1 = vaxf_to_ieee32(FT1);
+ ft2 = float32_add(ft0, ft1, &FP_STATUS);
+ FT0 = ieee32_to_vaxf(ft2);
+}
+
+void helper_subf (void)
+{
+ float ft0, ft1, ft2;
+
+ if (!vaxf_is_valid(FT0) || !vaxf_is_valid(FT1)) {
+ /* XXX: TODO */
+ }
+ ft0 = vaxf_to_ieee32(FT0);
+ ft1 = vaxf_to_ieee32(FT1);
+ ft2 = float32_sub(ft0, ft1, &FP_STATUS);
+ FT0 = ieee32_to_vaxf(ft2);
+}
+
+void helper_mulf (void)
+{
+ float ft0, ft1, ft2;
+
+ if (!vaxf_is_valid(FT0) || !vaxf_is_valid(FT1)) {
+ /* XXX: TODO */
+ }
+ ft0 = vaxf_to_ieee32(FT0);
+ ft1 = vaxf_to_ieee32(FT1);
+ ft2 = float32_mul(ft0, ft1, &FP_STATUS);
+ FT0 = ieee32_to_vaxf(ft2);
+}
+
+void helper_divf (void)
+{
+ float ft0, ft1, ft2;
+
+ if (!vaxf_is_valid(FT0) || !vaxf_is_valid(FT1)) {
+ /* XXX: TODO */
+ }
+ ft0 = vaxf_to_ieee32(FT0);
+ ft1 = vaxf_to_ieee32(FT1);
+ ft2 = float32_div(ft0, ft1, &FP_STATUS);
+ FT0 = ieee32_to_vaxf(ft2);
+}
+
+void helper_sqrtf (void)
+{
+ float ft0, ft1;
+
+ if (!vaxf_is_valid(FT0) || !vaxf_is_valid(FT1)) {
+ /* XXX: TODO */
+ }
+ ft0 = vaxf_to_ieee32(FT0);
+ ft1 = float32_sqrt(ft0, &FP_STATUS);
+ FT0 = ieee32_to_vaxf(ft1);
+}
+
+void helper_itoff (void)
+{
+ /* XXX: TODO */
+}
+
+static int vaxg_is_valid (double ff)
+{
+ union {
+ double f;
+ uint64_t i;
+ } p;
+ uint64_t exp, mant;
+
+ p.f = ff;
+ exp = (p.i >> 52) & 0x7FF;
+ mant = p.i & 0x000FFFFFFFFFFFFFULL;
+ if (exp == 0 && ((p.i & 0x8000000000000000ULL) || mant != 0)) {
+ /* Reserved operands / Dirty zero */
+ return 0;
+ }
+
+ return 1;
+}
+
+static double vaxg_to_ieee64 (double fg)
+{
+ union {
+ double f;
+ uint64_t i;
+ } p;
+ uint32_t exp;
+
+ p.f = fg;
+ exp = (p.i >> 52) & 0x7FF;
+ if (exp < 3) {
+ /* Underflow */
+ p.f = 0.0;
+ } else {
+ p.f *= 0.25;
+ }
+
+ return p.f;
+}
+
+static double ieee64_to_vaxg (double fi)
+{
+ union {
+ double f;
+ uint64_t i;
+ } p;
+ uint64_t mant;
+ uint32_t exp;
+
+ p.f = fi;
+ exp = (p.i >> 52) & 0x7FF;
+ mant = p.i & 0x000FFFFFFFFFFFFFULL;
+ if (exp == 255) {
+ /* NaN or infinity */
+ p.i = 1; /* VAX dirty zero */
+ } else if (exp == 0) {
+ if (mant == 0) {
+ /* Zero */
+ p.i = 0;
+ } else {
+ /* Denormalized */
+ p.f *= 2.0;
+ }
+ } else {
+ if (exp >= 2045) {
+ /* Overflow */
+ p.i = 1; /* VAX dirty zero */
+ } else {
+ p.f *= 4.0;
+ }
+ }
+
+ return p.f;
+}
+
+void helper_addg (void)
+{
+ double ft0, ft1, ft2;
+
+ if (!vaxg_is_valid(FT0) || !vaxg_is_valid(FT1)) {
+ /* XXX: TODO */
+ }
+ ft0 = vaxg_to_ieee64(FT0);
+ ft1 = vaxg_to_ieee64(FT1);
+ ft2 = float64_add(ft0, ft1, &FP_STATUS);
+ FT0 = ieee64_to_vaxg(ft2);
+}
+
+void helper_subg (void)
+{
+ double ft0, ft1, ft2;
+
+ if (!vaxg_is_valid(FT0) || !vaxg_is_valid(FT1)) {
+ /* XXX: TODO */
+ }
+ ft0 = vaxg_to_ieee64(FT0);
+ ft1 = vaxg_to_ieee64(FT1);
+ ft2 = float64_sub(ft0, ft1, &FP_STATUS);
+ FT0 = ieee64_to_vaxg(ft2);
+}
+
+void helper_mulg (void)
+{
+ double ft0, ft1, ft2;
+
+ if (!vaxg_is_valid(FT0) || !vaxg_is_valid(FT1)) {
+ /* XXX: TODO */
+ }
+ ft0 = vaxg_to_ieee64(FT0);
+ ft1 = vaxg_to_ieee64(FT1);
+ ft2 = float64_mul(ft0, ft1, &FP_STATUS);
+ FT0 = ieee64_to_vaxg(ft2);
+}
+
+void helper_divg (void)
+{
+ double ft0, ft1, ft2;
+
+ if (!vaxg_is_valid(FT0) || !vaxg_is_valid(FT1)) {
+ /* XXX: TODO */
+ }
+ ft0 = vaxg_to_ieee64(FT0);
+ ft1 = vaxg_to_ieee64(FT1);
+ ft2 = float64_div(ft0, ft1, &FP_STATUS);
+ FT0 = ieee64_to_vaxg(ft2);
+}
+
+void helper_sqrtg (void)
+{
+ double ft0, ft1;
+
+ if (!vaxg_is_valid(FT0) || !vaxg_is_valid(FT1)) {
+ /* XXX: TODO */
+ }
+ ft0 = vaxg_to_ieee64(FT0);
+ ft1 = float64_sqrt(ft0, &FP_STATUS);
+ FT0 = ieee64_to_vaxg(ft1);
+}
+
+void helper_cmpgeq (void)
+{
+ union {
+ double d;
+ uint64_t u;
+ } p;
+ double ft0, ft1;
+
+ if (!vaxg_is_valid(FT0) || !vaxg_is_valid(FT1)) {
+ /* XXX: TODO */
+ }
+ ft0 = vaxg_to_ieee64(FT0);
+ ft1 = vaxg_to_ieee64(FT1);
+ p.u = 0;
+ if (float64_eq(ft0, ft1, &FP_STATUS))
+ p.u = 0x4000000000000000ULL;
+ FT0 = p.d;
+}
+
+void helper_cmpglt (void)
+{
+ union {
+ double d;
+ uint64_t u;
+ } p;
+ double ft0, ft1;
+
+ if (!vaxg_is_valid(FT0) || !vaxg_is_valid(FT1)) {
+ /* XXX: TODO */
+ }
+ ft0 = vaxg_to_ieee64(FT0);
+ ft1 = vaxg_to_ieee64(FT1);
+ p.u = 0;
+ if (float64_lt(ft0, ft1, &FP_STATUS))
+ p.u = 0x4000000000000000ULL;
+ FT0 = p.d;
+}
+
+void helper_cmpgle (void)
+{
+ union {
+ double d;
+ uint64_t u;
+ } p;
+ double ft0, ft1;
+
+ if (!vaxg_is_valid(FT0) || !vaxg_is_valid(FT1)) {
+ /* XXX: TODO */
+ }
+ ft0 = vaxg_to_ieee64(FT0);
+ ft1 = vaxg_to_ieee64(FT1);
+ p.u = 0;
+ if (float64_le(ft0, ft1, &FP_STATUS))
+ p.u = 0x4000000000000000ULL;
+ FT0 = p.d;
+}
+
+void helper_cvtqs (void)
+{
+ union {
+ double d;
+ uint64_t u;
+ } p;
+
+ p.d = FT0;
+ FT0 = (float)p.u;
+}
+
+void helper_cvttq (void)
+{
+ union {
+ double d;
+ uint64_t u;
+ } p;
+
+ p.u = FT0;
+ FT0 = p.d;
+}
+
+void helper_cvtqt (void)
+{
+ union {
+ double d;
+ uint64_t u;
+ } p;
+
+ p.d = FT0;
+ FT0 = p.u;
+}
+
+void helper_cvtqf (void)
+{
+ union {
+ double d;
+ uint64_t u;
+ } p;
+
+ p.d = FT0;
+ FT0 = ieee32_to_vaxf(p.u);
+}
+
+void helper_cvtgf (void)
+{
+ double ft0;
+
+ ft0 = vaxg_to_ieee64(FT0);
+ FT0 = ieee32_to_vaxf(ft0);
+}
+
+void helper_cvtgd (void)
+{
+ /* XXX: TODO */
+}
+
+void helper_cvtgq (void)
+{
+ union {
+ double d;
+ uint64_t u;
+ } p;
+
+ p.u = vaxg_to_ieee64(FT0);
+ FT0 = p.d;
+}
+
+void helper_cvtqg (void)
+{
+ union {
+ double d;
+ uint64_t u;
+ } p;
+
+ p.d = FT0;
+ FT0 = ieee64_to_vaxg(p.u);
+}
+
+void helper_cvtdg (void)
+{
+ /* XXX: TODO */
+}
+
+void helper_cvtlq (void)
+{
+ union {
+ double d;
+ uint64_t u;
+ } p, q;
+
+ p.d = FT0;
+ q.u = (p.u >> 29) & 0x3FFFFFFF;
+ q.u |= (p.u >> 32);
+ q.u = (int64_t)((int32_t)q.u);
+ FT0 = q.d;
+}
+
+static inline void __helper_cvtql (int s, int v)
+{
+ union {
+ double d;
+ uint64_t u;
+ } p, q;
+
+ p.d = FT0;
+ q.u = ((uint64_t)(p.u & 0xC0000000)) << 32;
+ q.u |= ((uint64_t)(p.u & 0x7FFFFFFF)) << 29;
+ FT0 = q.d;
+ if (v && (int64_t)((int32_t)p.u) != (int64_t)p.u) {
+ helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW);
+ }
+ if (s) {
+ /* TODO */
+ }
+}
+
+void helper_cvtql (void)
+{
+ __helper_cvtql(0, 0);
+}
+
+void helper_cvtqlv (void)
+{
+ __helper_cvtql(0, 1);
+}
+
+void helper_cvtqlsv (void)
+{
+ __helper_cvtql(1, 1);
+}
+
+void helper_cmpfeq (void)
+{
+ if (float64_eq(FT0, FT1, &FP_STATUS))
+ T0 = 1;
+ else
+ T0 = 0;
+}
+
+void helper_cmpfne (void)
+{
+ if (float64_eq(FT0, FT1, &FP_STATUS))
+ T0 = 0;
+ else
+ T0 = 1;
+}
+
+void helper_cmpflt (void)
+{
+ if (float64_lt(FT0, FT1, &FP_STATUS))
+ T0 = 1;
+ else
+ T0 = 0;
+}
+
+void helper_cmpfle (void)
+{
+ if (float64_lt(FT0, FT1, &FP_STATUS))
+ T0 = 1;
+ else
+ T0 = 0;
+}
+
+void helper_cmpfgt (void)
+{
+ if (float64_le(FT0, FT1, &FP_STATUS))
+ T0 = 0;
+ else
+ T0 = 1;
+}
+
+void helper_cmpfge (void)
+{
+ if (float64_lt(FT0, FT1, &FP_STATUS))
+ T0 = 0;
+ else
+ T0 = 1;
+}
+
+#if !defined (CONFIG_USER_ONLY)
+void helper_mfpr (int iprn)
+{
+ uint64_t val;
+
+ if (cpu_alpha_mfpr(env, iprn, &val) == 0)
+ T0 = val;
+}
+
+void helper_mtpr (int iprn)
+{
+ cpu_alpha_mtpr(env, iprn, T0, NULL);
+}
+#endif
+
+/*****************************************************************************/
+/* Softmmu support */
+#if !defined (CONFIG_USER_ONLY)
+
+#define GETPC() (__builtin_return_address(0))
+
+/* XXX: the two following helpers are pure hacks.
+ * Hopefully, we emulate the PALcode, then we should never see
+ * HW_LD / HW_ST instructions.
+ */
+void helper_ld_phys_to_virt (void)
+{
+ uint64_t tlb_addr, physaddr;
+ int index, is_user;
+ void *retaddr;
+
+ is_user = (env->ps >> 3) & 3;
+ index = (T0 >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
+ redo:
+ tlb_addr = env->tlb_table[is_user][index].addr_read;
+ if ((T0 & TARGET_PAGE_MASK) ==
+ (tlb_addr & (TARGET_PAGE_MASK | TLB_INVALID_MASK))) {
+ physaddr = T0 + env->tlb_table[is_user][index].addend;
+ } else {
+ /* the page is not in the TLB : fill it */
+ retaddr = GETPC();
+ tlb_fill(T0, 0, is_user, retaddr);
+ goto redo;
+ }
+ T0 = physaddr;
+}
+
+void helper_st_phys_to_virt (void)
+{
+ uint64_t tlb_addr, physaddr;
+ int index, is_user;
+ void *retaddr;
+
+ is_user = (env->ps >> 3) & 3;
+ index = (T0 >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
+ redo:
+ tlb_addr = env->tlb_table[is_user][index].addr_write;
+ if ((T0 & TARGET_PAGE_MASK) ==
+ (tlb_addr & (TARGET_PAGE_MASK | TLB_INVALID_MASK))) {
+ physaddr = T0 + env->tlb_table[is_user][index].addend;
+ } else {
+ /* the page is not in the TLB : fill it */
+ retaddr = GETPC();
+ tlb_fill(T0, 1, is_user, retaddr);
+ goto redo;
+ }
+ T0 = physaddr;
+}
+
+#define MMUSUFFIX _mmu
+
+#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"
+
+/* 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;
+ CPUState *saved_env;
+ target_phys_addr_t pc;
+ int ret;
+
+ /* XXX: hack to restore env in all cases, even if not called from
+ generated code */
+ saved_env = env;
+ env = cpu_single_env;
+ ret = cpu_alpha_handle_mmu_fault(env, addr, is_write, is_user, 1);
+ if (!likely(ret == 0)) {
+ if (likely(retaddr)) {
+ /* now we have a real cpu fault */
+ pc = (target_phys_addr_t)retaddr;
+ tb = tb_find_pc(pc);
+ if (likely(tb)) {
+ /* the PC is inside the translated code. It means that we have
+ a virtual CPU fault */
+ cpu_restore_state(tb, env, pc, NULL);
+ }
+ }
+ /* Exception index and error code are already set */
+ cpu_loop_exit();
+ }
+ env = saved_env;
+}
+
+#endif
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