[qemu.git] / target-i386 / helper_template.h

/*
 *  i386 helpers
 *
 *  Copyright (c) 2008 Fabrice Bellard
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */
#define DATA_BITS (1 << (3 + SHIFT))
#define SHIFT_MASK (DATA_BITS - 1)
#define SIGN_MASK (((target_ulong)1) << (DATA_BITS - 1))
#if DATA_BITS <= 32
#define SHIFT1_MASK 0x1f
#else
#define SHIFT1_MASK 0x3f
#endif

#if DATA_BITS == 8
#define SUFFIX b
#define DATA_TYPE uint8_t
#define DATA_STYPE int8_t
#define DATA_MASK 0xff
#elif DATA_BITS == 16
#define SUFFIX w
#define DATA_TYPE uint16_t
#define DATA_STYPE int16_t
#define DATA_MASK 0xffff
#elif DATA_BITS == 32
#define SUFFIX l
#define DATA_TYPE uint32_t
#define DATA_STYPE int32_t
#define DATA_MASK 0xffffffff
#elif DATA_BITS == 64
#define SUFFIX q
#define DATA_TYPE uint64_t
#define DATA_STYPE int64_t
#define DATA_MASK 0xffffffffffffffffULL
#else
#error unhandled operand size
#endif

/* dynamic flags computation */

static int glue(compute_all_add, SUFFIX)(void)
{
    int cf, pf, af, zf, sf, of;
    target_long src1, src2;
    src1 = CC_SRC;
    src2 = CC_DST - CC_SRC;
    cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1;
    pf = parity_table[(uint8_t)CC_DST];
    af = (CC_DST ^ src1 ^ src2) & 0x10;
    zf = ((DATA_TYPE)CC_DST == 0) << 6;
    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
    of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;
    return cf | pf | af | zf | sf | of;
}

static int glue(compute_c_add, SUFFIX)(void)
{
    int cf;
    target_long src1;
    src1 = CC_SRC;
    cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1;
    return cf;
}

static int glue(compute_all_adc, SUFFIX)(void)
{
    int cf, pf, af, zf, sf, of;
    target_long src1, src2;
    src1 = CC_SRC;
    src2 = CC_DST - CC_SRC - 1;
    cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1;
    pf = parity_table[(uint8_t)CC_DST];
    af = (CC_DST ^ src1 ^ src2) & 0x10;
    zf = ((DATA_TYPE)CC_DST == 0) << 6;
    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
    of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;
    return cf | pf | af | zf | sf | of;
}

static int glue(compute_c_adc, SUFFIX)(void)
{
    int cf;
    target_long src1;
    src1 = CC_SRC;
    cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1;
    return cf;
}

static int glue(compute_all_sub, SUFFIX)(void)
{
    int cf, pf, af, zf, sf, of;
    target_long src1, src2;
    src1 = CC_DST + CC_SRC;
    src2 = CC_SRC;
    cf = (DATA_TYPE)src1 < (DATA_TYPE)src2;
    pf = parity_table[(uint8_t)CC_DST];
    af = (CC_DST ^ src1 ^ src2) & 0x10;
    zf = ((DATA_TYPE)CC_DST == 0) << 6;
    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
    of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;
    return cf | pf | af | zf | sf | of;
}

static int glue(compute_c_sub, SUFFIX)(void)
{
    int cf;
    target_long src1, src2;
    src1 = CC_DST + CC_SRC;
    src2 = CC_SRC;
    cf = (DATA_TYPE)src1 < (DATA_TYPE)src2;
    return cf;
}

static int glue(compute_all_sbb, SUFFIX)(void)
{
    int cf, pf, af, zf, sf, of;
    target_long src1, src2;
    src1 = CC_DST + CC_SRC + 1;
    src2 = CC_SRC;
    cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2;
    pf = parity_table[(uint8_t)CC_DST];
    af = (CC_DST ^ src1 ^ src2) & 0x10;
    zf = ((DATA_TYPE)CC_DST == 0) << 6;
    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
    of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;
    return cf | pf | af | zf | sf | of;
}

static int glue(compute_c_sbb, SUFFIX)(void)
{
    int cf;
    target_long src1, src2;
    src1 = CC_DST + CC_SRC + 1;
    src2 = CC_SRC;
    cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2;
    return cf;
}

static int glue(compute_all_logic, SUFFIX)(void)
{
    int cf, pf, af, zf, sf, of;
    cf = 0;
    pf = parity_table[(uint8_t)CC_DST];
    af = 0;
    zf = ((DATA_TYPE)CC_DST == 0) << 6;
    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
    of = 0;
    return cf | pf | af | zf | sf | of;
}

static int glue(compute_c_logic, SUFFIX)(void)
{
    return 0;
}

static int glue(compute_all_inc, SUFFIX)(void)
{
    int cf, pf, af, zf, sf, of;
    target_long src1, src2;
    src1 = CC_DST - 1;
    src2 = 1;
    cf = CC_SRC;
    pf = parity_table[(uint8_t)CC_DST];
    af = (CC_DST ^ src1 ^ src2) & 0x10;
    zf = ((DATA_TYPE)CC_DST == 0) << 6;
    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
    of = ((CC_DST & DATA_MASK) == SIGN_MASK) << 11;
    return cf | pf | af | zf | sf | of;
}

#if DATA_BITS == 32
static int glue(compute_c_inc, SUFFIX)(void)
{
    return CC_SRC;
}
#endif

static int glue(compute_all_dec, SUFFIX)(void)
{
    int cf, pf, af, zf, sf, of;
    target_long src1, src2;
    src1 = CC_DST + 1;
    src2 = 1;
    cf = CC_SRC;
    pf = parity_table[(uint8_t)CC_DST];
    af = (CC_DST ^ src1 ^ src2) & 0x10;
    zf = ((DATA_TYPE)CC_DST == 0) << 6;
    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
    of = ((CC_DST & DATA_MASK) == ((target_ulong)SIGN_MASK - 1)) << 11;
    return cf | pf | af | zf | sf | of;
}

static int glue(compute_all_shl, SUFFIX)(void)
{
    int cf, pf, af, zf, sf, of;
    cf = (CC_SRC >> (DATA_BITS - 1)) & CC_C;
    pf = parity_table[(uint8_t)CC_DST];
    af = 0; /* undefined */
    zf = ((DATA_TYPE)CC_DST == 0) << 6;
    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
    /* of is defined if shift count == 1 */
    of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O;
    return cf | pf | af | zf | sf | of;
}

static int glue(compute_c_shl, SUFFIX)(void)
{
    return (CC_SRC >> (DATA_BITS - 1)) & CC_C;
}

#if DATA_BITS == 32
static int glue(compute_c_sar, SUFFIX)(void)
{
    return CC_SRC & 1;
}
#endif

static int glue(compute_all_sar, SUFFIX)(void)
{
    int cf, pf, af, zf, sf, of;
    cf = CC_SRC & 1;
    pf = parity_table[(uint8_t)CC_DST];
    af = 0; /* undefined */
    zf = ((DATA_TYPE)CC_DST == 0) << 6;
    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
    /* of is defined if shift count == 1 */
    of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O;
    return cf | pf | af | zf | sf | of;
}

#if DATA_BITS == 32
static int glue(compute_c_mul, SUFFIX)(void)
{
    int cf;
    cf = (CC_SRC != 0);
    return cf;
}
#endif

/* NOTE: we compute the flags like the P4. On olders CPUs, only OF and
   CF are modified and it is slower to do that. */
static int glue(compute_all_mul, SUFFIX)(void)
{
    int cf, pf, af, zf, sf, of;
    cf = (CC_SRC != 0);
    pf = parity_table[(uint8_t)CC_DST];
    af = 0; /* undefined */
    zf = ((DATA_TYPE)CC_DST == 0) << 6;
    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
    of = cf << 11;
    return cf | pf | af | zf | sf | of;
}

/* shifts */

target_ulong glue(helper_rcl, SUFFIX)(target_ulong t0, target_ulong t1)
{
    int count, eflags;
    target_ulong src;
    target_long res;

    count = t1 & SHIFT1_MASK;
#if DATA_BITS == 16
    count = rclw_table[count];
#elif DATA_BITS == 8
    count = rclb_table[count];
#endif
    if (count) {
        eflags = helper_cc_compute_all(CC_OP);
        t0 &= DATA_MASK;
        src = t0;
        res = (t0 << count) | ((target_ulong)(eflags & CC_C) << (count - 1));
        if (count > 1)
            res |= t0 >> (DATA_BITS + 1 - count);
        t0 = res;
        env->cc_tmp = (eflags & ~(CC_C | CC_O)) |
            (lshift(src ^ t0, 11 - (DATA_BITS - 1)) & CC_O) |
            ((src >> (DATA_BITS - count)) & CC_C);
    } else {
        env->cc_tmp = -1;
    }
    return t0;
}

target_ulong glue(helper_rcr, SUFFIX)(target_ulong t0, target_ulong t1)
{
    int count, eflags;
    target_ulong src;
    target_long res;

    count = t1 & SHIFT1_MASK;
#if DATA_BITS == 16
    count = rclw_table[count];
#elif DATA_BITS == 8
    count = rclb_table[count];
#endif
    if (count) {
        eflags = helper_cc_compute_all(CC_OP);
        t0 &= DATA_MASK;
        src = t0;
        res = (t0 >> count) | ((target_ulong)(eflags & CC_C) << (DATA_BITS - count));
        if (count > 1)
            res |= t0 << (DATA_BITS + 1 - count);
        t0 = res;
        env->cc_tmp = (eflags & ~(CC_C | CC_O)) |
            (lshift(src ^ t0, 11 - (DATA_BITS - 1)) & CC_O) |
            ((src >> (count - 1)) & CC_C);
    } else {
        env->cc_tmp = -1;
    }
    return t0;
}

#undef DATA_BITS
#undef SHIFT_MASK
#undef SHIFT1_MASK
#undef SIGN_MASK
#undef DATA_TYPE
#undef DATA_STYPE
#undef DATA_MASK
#undef SUFFIX
Commit	Line	Data
b6abf97d FB	1	/*
	2	* i386 helpers
	3	*
	4	* Copyright (c) 2008 Fabrice Bellard
	5	*
	6	* This library is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU Lesser General Public
	8	* License as published by the Free Software Foundation; either
	9	* version 2 of the License, or (at your option) any later version.
	10	*
	11	* This library is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	* Lesser General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU Lesser General Public
8167ee88	17	* License along with this library; if not, see <http://www.gnu.org/licenses/>.
b6abf97d FB	18	*/
	19	#define DATA_BITS (1 << (3 + SHIFT))
	20	#define SHIFT_MASK (DATA_BITS - 1)
	21	#define SIGN_MASK (((target_ulong)1) << (DATA_BITS - 1))
	22	#if DATA_BITS <= 32
	23	#define SHIFT1_MASK 0x1f
	24	#else
	25	#define SHIFT1_MASK 0x3f
	26	#endif
	27
	28	#if DATA_BITS == 8
	29	#define SUFFIX b
	30	#define DATA_TYPE uint8_t
	31	#define DATA_STYPE int8_t
	32	#define DATA_MASK 0xff
	33	#elif DATA_BITS == 16
	34	#define SUFFIX w
	35	#define DATA_TYPE uint16_t
	36	#define DATA_STYPE int16_t
	37	#define DATA_MASK 0xffff
	38	#elif DATA_BITS == 32
	39	#define SUFFIX l
	40	#define DATA_TYPE uint32_t
	41	#define DATA_STYPE int32_t
	42	#define DATA_MASK 0xffffffff
	43	#elif DATA_BITS == 64
	44	#define SUFFIX q
	45	#define DATA_TYPE uint64_t
	46	#define DATA_STYPE int64_t
	47	#define DATA_MASK 0xffffffffffffffffULL
	48	#else
	49	#error unhandled operand size
	50	#endif
	51
07d2c595 FB	52	/* dynamic flags computation */
	53
	54	static int glue(compute_all_add, SUFFIX)(void)
	55	{
	56	int cf, pf, af, zf, sf, of;
	57	target_long src1, src2;
	58	src1 = CC_SRC;
	59	src2 = CC_DST - CC_SRC;
	60	cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1;
	61	pf = parity_table[(uint8_t)CC_DST];
	62	af = (CC_DST ^ src1 ^ src2) & 0x10;
	63	zf = ((DATA_TYPE)CC_DST == 0) << 6;
	64	sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
	65	of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;
	66	return cf \| pf \| af \| zf \| sf \| of;
	67	}
	68
	69	static int glue(compute_c_add, SUFFIX)(void)
	70	{
	71	int cf;
	72	target_long src1;
	73	src1 = CC_SRC;
	74	cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1;
	75	return cf;
	76	}
	77
	78	static int glue(compute_all_adc, SUFFIX)(void)
	79	{
	80	int cf, pf, af, zf, sf, of;
	81	target_long src1, src2;
	82	src1 = CC_SRC;
	83	src2 = CC_DST - CC_SRC - 1;
	84	cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1;
	85	pf = parity_table[(uint8_t)CC_DST];
	86	af = (CC_DST ^ src1 ^ src2) & 0x10;
	87	zf = ((DATA_TYPE)CC_DST == 0) << 6;
	88	sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
	89	of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;
	90	return cf \| pf \| af \| zf \| sf \| of;
	91	}
	92
	93	static int glue(compute_c_adc, SUFFIX)(void)
	94	{
	95	int cf;
	96	target_long src1;
	97	src1 = CC_SRC;
	98	cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1;
	99	return cf;
	100	}
	101
	102	static int glue(compute_all_sub, SUFFIX)(void)
	103	{
	104	int cf, pf, af, zf, sf, of;
	105	target_long src1, src2;
	106	src1 = CC_DST + CC_SRC;
	107	src2 = CC_SRC;
	108	cf = (DATA_TYPE)src1 < (DATA_TYPE)src2;
	109	pf = parity_table[(uint8_t)CC_DST];
	110	af = (CC_DST ^ src1 ^ src2) & 0x10;
	111	zf = ((DATA_TYPE)CC_DST == 0) << 6;
	112	sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
	113	of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;
	114	return cf \| pf \| af \| zf \| sf \| of;
	115	}
116
117	static int glue(compute_c_sub, SUFFIX)(void)
118	{
119	int cf;
120	target_long src1, src2;
121	src1 = CC_DST + CC_SRC;
122	src2 = CC_SRC;
123	cf = (DATA_TYPE)src1 < (DATA_TYPE)src2;
124	return cf;
125	}
126
127	static int glue(compute_all_sbb, SUFFIX)(void)
128	{
129	int cf, pf, af, zf, sf, of;
130	target_long src1, src2;
131	src1 = CC_DST + CC_SRC + 1;
132	src2 = CC_SRC;
133	cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2;
134	pf = parity_table[(uint8_t)CC_DST];
135	af = (CC_DST ^ src1 ^ src2) & 0x10;
136	zf = ((DATA_TYPE)CC_DST == 0) << 6;
137	sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
138	of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;
139	return cf \| pf \| af \| zf \| sf \| of;
140	}
141
142	static int glue(compute_c_sbb, SUFFIX)(void)
143	{
144	int cf;
145	target_long src1, src2;
146	src1 = CC_DST + CC_SRC + 1;
147	src2 = CC_SRC;
148	cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2;
149	return cf;
150	}
151
152	static int glue(compute_all_logic, SUFFIX)(void)
153	{
154	int cf, pf, af, zf, sf, of;
155	cf = 0;
156	pf = parity_table[(uint8_t)CC_DST];
157	af = 0;
158	zf = ((DATA_TYPE)CC_DST == 0) << 6;
159	sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
160	of = 0;
161	return cf \| pf \| af \| zf \| sf \| of;
162	}
163
164	static int glue(compute_c_logic, SUFFIX)(void)
165	{
166	return 0;
167	}
168
169	static int glue(compute_all_inc, SUFFIX)(void)
170	{
171	int cf, pf, af, zf, sf, of;
172	target_long src1, src2;
173	src1 = CC_DST - 1;
174	src2 = 1;
175	cf = CC_SRC;
176	pf = parity_table[(uint8_t)CC_DST];
177	af = (CC_DST ^ src1 ^ src2) & 0x10;
178	zf = ((DATA_TYPE)CC_DST == 0) << 6;
179	sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
180	of = ((CC_DST & DATA_MASK) == SIGN_MASK) << 11;
181	return cf \| pf \| af \| zf \| sf \| of;
182	}
183
184	#if DATA_BITS == 32
185	static int glue(compute_c_inc, SUFFIX)(void)
186	{
187	return CC_SRC;
188	}
189	#endif
190
191	static int glue(compute_all_dec, SUFFIX)(void)
192	{
193	int cf, pf, af, zf, sf, of;
194	target_long src1, src2;
195	src1 = CC_DST + 1;
196	src2 = 1;
197	cf = CC_SRC;
198	pf = parity_table[(uint8_t)CC_DST];
199	af = (CC_DST ^ src1 ^ src2) & 0x10;
200	zf = ((DATA_TYPE)CC_DST == 0) << 6;
201	sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
202	of = ((CC_DST & DATA_MASK) == ((target_ulong)SIGN_MASK - 1)) << 11;
203	return cf \| pf \| af \| zf \| sf \| of;
204	}
205
206	static int glue(compute_all_shl, SUFFIX)(void)
207	{
208	int cf, pf, af, zf, sf, of;
209	cf = (CC_SRC >> (DATA_BITS - 1)) & CC_C;
210	pf = parity_table[(uint8_t)CC_DST];
211	af = 0; /* undefined */
212	zf = ((DATA_TYPE)CC_DST == 0) << 6;
213	sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
214	/* of is defined if shift count == 1 */
215	of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O;
216	return cf \| pf \| af \| zf \| sf \| of;
217	}
218
219	static int glue(compute_c_shl, SUFFIX)(void)
220	{
221	return (CC_SRC >> (DATA_BITS - 1)) & CC_C;
222	}
223
224	#if DATA_BITS == 32
225	static int glue(compute_c_sar, SUFFIX)(void)
226	{
227	return CC_SRC & 1;
228	}
229	#endif
230
231	static int glue(compute_all_sar, SUFFIX)(void)
232	{
233	int cf, pf, af, zf, sf, of;
234	cf = CC_SRC & 1;
235	pf = parity_table[(uint8_t)CC_DST];
236	af = 0; /* undefined */
237	zf = ((DATA_TYPE)CC_DST == 0) << 6;
238	sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
239	/* of is defined if shift count == 1 */
240	of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O;
241	return cf \| pf \| af \| zf \| sf \| of;
242	}
243
244	#if DATA_BITS == 32
245	static int glue(compute_c_mul, SUFFIX)(void)
246	{
247	int cf;
248	cf = (CC_SRC != 0);
249	return cf;
250	}
251	#endif
252
253	/* NOTE: we compute the flags like the P4. On olders CPUs, only OF and
254	CF are modified and it is slower to do that. */
255	static int glue(compute_all_mul, SUFFIX)(void)
256	{
257	int cf, pf, af, zf, sf, of;
258	cf = (CC_SRC != 0);
259	pf = parity_table[(uint8_t)CC_DST];
260	af = 0; /* undefined */
261	zf = ((DATA_TYPE)CC_DST == 0) << 6;
262	sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
263	of = cf << 11;
264	return cf \| pf \| af \| zf \| sf \| of;
265	}
266
267	/* shifts */
268
b6abf97d FB	269	target_ulong glue(helper_rcl, SUFFIX)(target_ulong t0, target_ulong t1)
	270	{
	271	int count, eflags;
	272	target_ulong src;
	273	target_long res;
	274
	275	count = t1 & SHIFT1_MASK;
	276	#if DATA_BITS == 16
	277	count = rclw_table[count];
	278	#elif DATA_BITS == 8
	279	count = rclb_table[count];
	280	#endif
	281	if (count) {
a7812ae4	282	eflags = helper_cc_compute_all(CC_OP);
b6abf97d FB	283	t0 &= DATA_MASK;
	284	src = t0;
	285	res = (t0 << count) \| ((target_ulong)(eflags & CC_C) << (count - 1));
	286	if (count > 1)
	287	res \|= t0 >> (DATA_BITS + 1 - count);
	288	t0 = res;
1e4840bf	289	env->cc_tmp = (eflags & ~(CC_C \| CC_O)) \|
b6abf97d FB	290	(lshift(src ^ t0, 11 - (DATA_BITS - 1)) & CC_O) \|
	291	((src >> (DATA_BITS - count)) & CC_C);
	292	} else {
1e4840bf	293	env->cc_tmp = -1;
b6abf97d FB	294	}
	295	return t0;
	296	}
	297
	298	target_ulong glue(helper_rcr, SUFFIX)(target_ulong t0, target_ulong t1)
	299	{
	300	int count, eflags;
	301	target_ulong src;
	302	target_long res;
	303
	304	count = t1 & SHIFT1_MASK;
	305	#if DATA_BITS == 16
	306	count = rclw_table[count];
	307	#elif DATA_BITS == 8
	308	count = rclb_table[count];
	309	#endif
	310	if (count) {
a7812ae4	311	eflags = helper_cc_compute_all(CC_OP);
b6abf97d FB	312	t0 &= DATA_MASK;
	313	src = t0;
	314	res = (t0 >> count) \| ((target_ulong)(eflags & CC_C) << (DATA_BITS - count));
	315	if (count > 1)
	316	res \|= t0 << (DATA_BITS + 1 - count);
	317	t0 = res;
1e4840bf	318	env->cc_tmp = (eflags & ~(CC_C \| CC_O)) \|
b6abf97d FB	319	(lshift(src ^ t0, 11 - (DATA_BITS - 1)) & CC_O) \|
	320	((src >> (count - 1)) & CC_C);
	321	} else {
1e4840bf	322	env->cc_tmp = -1;
b6abf97d FB	323	}
	324	return t0;
	325	}
	326
	327	#undef DATA_BITS
	328	#undef SHIFT_MASK
	329	#undef SHIFT1_MASK
	330	#undef SIGN_MASK
	331	#undef DATA_TYPE
	332	#undef DATA_STYPE
	333	#undef DATA_MASK
	334	#undef SUFFIX