27  * instruction per data move overhead. movem might be faster still
46    movep is rather expensive compared to ordinary move's
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()
65 		"	move.l	%2,%%d4; move.l %2,%%d5; move.l %2,%%d6\n"  in fb_memclear_small()
95 			"	move.l	%1,%2\n"  in fb_memclear()
101 			"2:	move.w	%1,%2; lsr.l #2,%1 ; jeq 6f\n"  in fb_memclear()
107 			"6:	move.w	%2,%1; btst #1,%1 ; jeq 7f ; clr.w (%0)+\n"  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()
133 		"	move.l	%2,%%d4; move.l %2,%%d5; move.l %2,%%d6\n"  in fb_memset255()
150 				"	lsr.l	#1,%2 ; jcc 1f ; move.b (%1)+,(%0)+\n"  in fb_memmove()
151 				"1:	lsr.l	#1,%2 ; jcc 1f ; move.w (%1)+,(%0)+\n"  in fb_memmove()
152 				"1:	lsr.l	#1,%2 ; jcc 1f ; move.l (%1)+,(%0)+\n"  in fb_memmove()
153 				"1:	lsr.l	#1,%2 ; jcc 1f ; move.l (%1)+,(%0)+ ; move.l (%1)+,(%0)+\n"  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()
163 				"	move.w	(%1)+,(%0)+  ; subqw  #2,%2 ; jra 2f\n"  in fb_memmove()
165 				"	move.w	(%1)+,(%0)+  ; subqw  #2,%2\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()
170 				"5:	move.l	(%1)+,(%0)+; move.l (%1)+,(%0)+\n"  in fb_memmove()
171 				"	move.l	(%1)+,(%0)+; move.l (%1)+,(%0)+\n"  in fb_memmove()
173 				"6:	move.w	%+,%2; btst #1,%2 ; jeq 7f ; move.w (%1)+,(%0)+\n"  in fb_memmove()
174 				"7:	btst	#0,%2 ; jeq 8f ; move.b (%1)+,(%0)+\n"  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()
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()
196 				"	move.w	-(%1),-(%0) ; subqw  #2,%2 ; jra 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()