1 /* SPDX-License-Identifier: GPL-2.0 */
22  * would be faster. I suspect not for simple text system - not much
30  * Unaligned read/write used requires 68020+ - think this is a problem?
55 		"	lsr.l	#1,%1 ; jcc 1f ; move.b %2,-(%0)\n"  in fb_memclear_small()
56 		"1:	lsr.l	#1,%1 ; jcc 1f ; move.w %2,-(%0)\n"  in fb_memclear_small()
57 		"1:	lsr.l	#1,%1 ; jcc 1f ; move.l %2,-(%0)\n"  in fb_memclear_small()
58 		"1:	lsr.l	#1,%1 ; jcc 1f ; move.l %2,-(%0) ; move.l %2,-(%0)\n"  in fb_memclear_small()
60 		: "=a" (s), "=d" (count)  in fb_memclear_small()
61 		: "d" (0), "0" ((char *)s + count), "1" (count));  in fb_memclear_small()
64 		"	jcs	3f\n"  in fb_memclear_small()
66 		"2:	movem.l	%2/%%d4/%%d5/%%d6,-(%0)\n"  in fb_memclear_small()
68 		"3:"  in fb_memclear_small()
69 		: "=a" (s), "=d" (count)  in fb_memclear_small()
70 		: "d" (0), "0" (s), "1" (count)  in fb_memclear_small()
90 			: "=a" (s), "=d" (count)  in fb_memclear()
102 			"	lsr.l	#1,%1 ; jcc 3f ; clr.l (%0)+\n"  in fb_memclear()
103 			"3:	lsr.l	#1,%1 ; jcc 4f ; clr.l (%0)+ ; clr.l (%0)+\n"  in fb_memclear()
110 			: "=a" (s), "=d" (count), "=d" (tmp)  in fb_memclear()
124 		"	lsr.l	#1,%1 ; jcc 1f ; move.b %2,-(%0)\n"  in fb_memset255()
125 		"1:	lsr.l	#1,%1 ; jcc 1f ; move.w %2,-(%0)\n"  in fb_memset255()
126 		"1:	lsr.l	#1,%1 ; jcc 1f ; move.l %2,-(%0)\n"  in fb_memset255()
127 		"1:	lsr.l	#1,%1 ; jcc 1f ; move.l %2,-(%0) ; move.l %2,-(%0)\n"  in fb_memset255()
129 		: "=a" (s), "=d" (count)  in fb_memset255()
130 		: "d" (-1), "0" ((char *)s+count), "1" (count));  in fb_memset255()
132 		"	subq.l	#1,%1 ; jcs 3f\n"  in fb_memset255()
134 		"2:	movem.l	%2/%%d4/%%d5/%%d6,-(%0)\n"  in fb_memset255()
136 		"3:"  in fb_memset255()
137 		: "=a" (s), "=d" (count)  in fb_memset255()
138 		: "d" (-1), "0" (s), "1" (count)  in fb_memset255()
145 static inline void *fb_memmove(void *d, const void *s, size_t count)  in fb_memmove()  argument
147 	if (d < s) {  in fb_memmove()
155 				: "=a" (d), "=a" (s), "=d" (count)  in fb_memmove()
156 				: "0" (d), "1" (s), "2" (count));  in fb_memmove()
160 				"	move.l	%0,%3\n"  in fb_memmove()
161 				"	lsr.l	#1,%3 ; jcc 1f ; move.b (%1)+,(%0)+ ; subqw #1,%2\n"  in fb_memmove()
162 				"	lsr.l	#1,%3 ; jcs 2f\n"  /* %0 increased=>bit 2 switched*/  in fb_memmove()
164 				"1:	lsr.l   #1,%3 ; jcc 2f\n"  in fb_memmove()
166 				"2:	move.w	%2,%-; lsr.l #2,%2 ; jeq 6f\n"  in fb_memmove()
167 				"	lsr.l	#1,%2 ; jcc 3f ; move.l (%1)+,(%0)+\n"  in fb_memmove()
168 				"3:	lsr.l	#1,%2 ; jcc 4f ; move.l (%1)+,(%0)+ ; move.l (%1)+,(%0)+\n"  in fb_memmove()
176 				: "=a" (d), "=a" (s), "=d" (count), "=d" (tmp)  in fb_memmove()
177 				: "0" (d), "1" (s), "2" (count));  in fb_memmove()
182 				"	lsr.l	#1,%2 ; jcc 1f ; move.b -(%1),-(%0)\n"  in fb_memmove()
183 				"1:	lsr.l	#1,%2 ; jcc 1f ; move.w -(%1),-(%0)\n"  in fb_memmove()
184 				"1:	lsr.l	#1,%2 ; jcc 1f ; move.l -(%1),-(%0)\n"  in fb_memmove()
185 				"1:	lsr.l	#1,%2 ; jcc 1f ; move.l -(%1),-(%0) ; move.l -(%1),-(%0)\n"  in fb_memmove()
187 				: "=a" (d), "=a" (s), "=d" (count)  in fb_memmove()
188 				: "0" ((char *) d + count), "1" ((char *) s + count), "2" (count));  in fb_memmove()
193 				"	move.l	%0,%3\n"  in fb_memmove()
194 				"	lsr.l	#1,%3 ; jcc 1f ; move.b -(%1),-(%0) ; subqw #1,%2\n"  in fb_memmove()
195 				"	lsr.l	#1,%3 ; jcs 2f\n"  /* %0 increased=>bit 2 switched*/  in fb_memmove()
196 				"	move.w	-(%1),-(%0) ; subqw  #2,%2 ; jra 2f\n"  in fb_memmove()
197 				"1:	lsr.l	#1,%3 ; jcc 2f\n"  in fb_memmove()
198 				"	move.w	-(%1),-(%0) ; subqw  #2,%2\n"  in fb_memmove()
199 				"2:	move.w	%2,%-; lsr.l #2,%2 ; jeq 6f\n"  in fb_memmove()
200 				"	lsr.l	#1,%2 ; jcc 3f ; move.l -(%1),-(%0)\n"  in fb_memmove()
201 				"3:	lsr.l	#1,%2 ; jcc 4f ; move.l -(%1),-(%0) ; move.l -(%1),-(%0)\n"  in fb_memmove()
203 				"5:	move.l	-(%1),-(%0); move.l -(%1),-(%0)\n"  in fb_memmove()
204 				"	move.l	-(%1),-(%0); move.l -(%1),-(%0)\n"  in fb_memmove()
206 				"6:	move.w	%+,%2; btst #1,%2 ; jeq 7f ; move.w -(%1),-(%0)\n"  in fb_memmove()
207 				"7:	btst	#0,%2 ; jeq 8f ; move.b -(%1),-(%0)\n"  in fb_memmove()
209 				: "=a" (d), "=a" (s), "=d" (count), "=d" (tmp)  in fb_memmove()
210 				: "0" ((char *) d + count), "1" ((char *) s + count), "2" (count));  in fb_memmove()
232 			: "=a" (src), "=a" (dst), "=d" (size)  in fast_memmove()
233 			: "0" (src), "1" (dst), "2" (size / 16 - 1)  in fast_memmove()
239 			"	movem.l	%%d0/%%d1/%%a0/%%a1,-(%1)\n"  in fast_memmove()
243 			: "=a" (src), "=a" (dst), "=d" (size)  in fast_memmove()
244 			: "0" (src + size), "1" (dst + size), "2" (size / 16 - 1)  in fast_memmove()
333 	m[0] = two2word[c & 3];  in expand16_col2mask()
335 	m[1] = two2word[(c >> 2) & 3];  in expand16_col2mask()
338 	m[2] = two2word[(c >> 4) & 3];  in expand16_col2mask()
339 	m[3] = two2word[c >> 6];  in expand16_col2mask()
345 	bgm[0] = two2word[bg & 3];  in expand16_2col2mask()
346 	fgm[0] = two2word[fg & 3] ^ bgm[0];  in expand16_2col2mask()
348 	bgm[1] = two2word[(bg >> 2) & 3];  in expand16_2col2mask()
349 	fgm[1] = two2word[(fg >> 2) & 3] ^ bgm[1];  in expand16_2col2mask()
352 	bgm[2] = two2word[(bg >> 4) & 3];  in expand16_2col2mask()
353 	fgm[2] = two2word[(fg >> 4) & 3] ^ bgm[2];  in expand16_2col2mask()
354 	bgm[3] = two2word[bg >> 6];  in expand16_2col2mask()
355 	fgm[3] = two2word[fg >> 6] ^ bgm[3];  in expand16_2col2mask()
368 		*dst++ = m[3];  in fill16_col()
370 		rows--;  in fill16_col()
377 	u32 *s, *d, v;  in memmove32_col()  local
380         d = dst;  in memmove32_col()
382                 v = (*s++ & mask) | (*d  & ~mask);  in memmove32_col()
383                 *d++ = v;  in memmove32_col()
385                 v = (*s++ & mask) | (*d  & ~mask);  in memmove32_col()
386                 *d++ = v;  in memmove32_col()
389                 v = (*s++ & mask) | (*d  & ~mask);  in memmove32_col()
390                 *d++ = v;  in memmove32_col()
391                 v = (*s++ & mask) | (*d  & ~mask);  in memmove32_col()
392                 *d++ = v;  in memmove32_col()
394                 d = (u32 *)((u8 *)d + bytes);  in memmove32_col()
396         } while (--h);  in memmove32_col()