5 // ; Peephole 1 removed pop %1 push %1 (not push pop)
13 // ; Peephole 2 removed pop %1 push %1 (not push pop)
18 // added by Jean Louis VERN for
24 ; Peephole 2.a removed redundant xch xch
32 ; Peephole 3.a changed mov to clr
42 ; Peephole 3.b changed mov to clr
48 // saving 1 byte, loosing 1 cycle but maybe allowing peephole 3.b to start
53 ; Peephole 3.c changed mov to clr
68 ; Peephole 100 removed redundant mov
77 ; Peephole 100.a removed redundant mov
87 ; Peephole 101 removed redundant mov
105 ; Peephole 102 removed redundant mov
127 ; Peephole 103 removed redundant mov
144 ; Peephole 104 optimized increment (acc not set to r%1, flags undefined)
153 ; Peephole 105 removed redundant mov
162 ; Peephole 106 removed redundant mov
171 ; Peephole 107 removed redundant ljmp
180 ; Peephole 108 removed ljmp by inverse jump logic
190 ; Peephole 109 removed ljmp by inverse jump logic
200 ; Peephole 110 removed ljmp by inverse jump logic
210 ; Peephole 111 removed ljmp by inverse jump logic
220 ; Peephole 112 removed ljmp by inverse jump logic
229 ; Peephole 132 changed ljmp to sjmp
243 ; Peephole 113 optimized misc sequence
248 } if labelRefCount %3 1
259 ; Peephole 114 optimized misc sequence
265 } if labelRefCount %3 2
274 ; Peephole 115 jump optimization
278 } if labelRefCount %3 1
288 ; Peephole 116 jump optimization
293 } if labelRefCount %3 2
304 ; Peephole 117 jump optimization
310 } if labelRefCount %3 3
322 ; Peephole 118 jump optimization
329 } if labelRefCount %3 4
338 ; Peephole 119 jump optimization
341 } if labelRefCount %3 1
351 ; Peephole 120 jump optimization
355 } if labelRefCount %3 2
366 ; Peephole 121 jump optimization
371 } if labelRefCount %3 3
383 ; Peephole 122 jump optimization
389 } if labelRefCount %3 4
398 ; Peephole 123 jump optimization
402 } if labelRefCount %3 1
412 ; Peephole 124 jump optimization
417 } if labelRefCount %3 2
428 ; Peephole 125 jump optimization
434 } if labelRefCount %3 3
446 ; Peephole 126 jump optimization
453 } if labelRefCount %3 4
466 ; Peephole 127 removed misc sequence
468 } if labelRefCount %3 0
475 ; Peephole 128 jump optimization
484 ; Peephole 129 jump optimization
491 ; Peephole 130 changed target address mode r%1 to ar%1
501 ; Peephole 131 optimized decrement (not caring for c)
513 ; Peephole 133 removed redundant moves
526 ; Peephole 134 removed redundant moves
537 ; Peephole 135 removed redundant mov
549 ; Peephole 136a removed redundant moves
562 ; Peephole 136 removed redundant moves
568 // WTF? Doesn't look sensible to me...
578 // ; Peephole 137 optimized misc jump sequence
582 //} if labelRefCount %4 1
593 // ; Peephole 138 optimized misc jump sequence
598 //} if labelRefCount %4 1
605 ; Peephole 139 removed redundant mov
615 ; Peephole 140 removed redundant mov
624 ; Peephole 141 removed redundant mov
634 ; Peephole 142 removed redundant moves
643 ; Peephole 143 converted rlc to rl
651 ; Peephole 144 converted rrc to rc
659 ; Peephole 145 changed to add without carry
668 ; Peephole 146 changed to add without carry
676 ; Peephole 147 changed target address mode r%1 to ar%1
683 ; Peephole 148 changed target address mode r%1 to ar%1
690 ; Peephole 149 changed target address mode r%1 to ar%1
700 ; Peephole 150 removed misc moves via dpl before return
713 ; Peephole 151 removed misc moves via dph, dpl before return
725 ; Peephole 152 removed misc moves via dph, dpl before return
740 ; Peephole 153 removed misc moves via dph, dpl, b before return
753 ; Peephole 154 removed misc moves via dph, dpl, b before return
767 ; Peephole 155 removed misc moves via dph, dpl, b before return
784 ; Peephole 156 removed misc moves via dph, dpl, b, a before return
799 ; Peephole 157 removed misc moves via dph, dpl, b, a before return
812 ; Peephole 158 removed misc moves via dph, dpl, b, a before return
820 ; Peephole 159 avoided xrl during execution
829 ; Peephole 160 removed sjmp by inverse jump logic
838 ; Peephole 161 removed sjmp by inverse jump logic
847 ; Peephole 162 removed sjmp by inverse jump logic
856 ; Peephole 163 removed sjmp by inverse jump logic
865 ; Peephole 164 removed sjmp by inverse jump logic
875 ; Peephole 165 removed sjmp by inverse jump logic
885 ; Peephole 166 removed redundant mov
894 ; Peephole 167 removed redundant bit moves (c not set to %1)
901 ; Peephole 168 jump optimization
909 ; Peephole 169 jump optimization
920 ; Peephole 170 jump optimization
923 } if labelRefCount %3 1
933 ; Peephole 171 jump optimization
937 } if labelRefCount %3 2
948 ; Peephole 172 jump optimization
953 } if labelRefCount %3 3
965 ; Peephole 173 jump optimization
971 } if labelRefCount %3 4
980 ; Peephole 174 optimized decrement (acc not set to %2, flags undefined)
992 ; Peephole 175 optimized increment (acc not set to %2, flags undefined)
1002 ; Peephole 176 optimized increment, removed redundant mov
1011 ; Peephole 177 removed redundant mov
1020 ; Peephole 178 removed redundant mov
1025 // rules 179-182 provided by : Frieder <fe@lake.iup.uni-heidelberg.de>
1026 // saving 2 byte, 1 cycle
1031 ; Peephole 179 changed mov to clr
1036 // saving 1 byte, 0 cycles
1040 ; Peephole 180 changed mov to clr
1049 ; Peephole 181a used 24 bit load of dptr
1053 // saving 3 byte, 2 cycles, return(NULL) profits here
1058 ; Peephole 181 used 16 bit load of dptr
1067 ; Peephole 182b used 24 bit load of DPTR
1071 // saves 2 bytes, ?? cycles.
1077 ; Peephole 182a used 24 bit load of dptr
1078 mov dptr,#((%3 << 16) + (%2 << 8) + %1)
1081 // saving 3 byte, 2 cycles, return(float_constant) profits here
1086 ; Peephole 182 used 16 bit load of dptr
1087 mov dptr,#(((%2)<<8) + %1)
1094 ; Peephole 183 avoided anl during execution
1103 ; Peephole 184 removed redundant mov
1109 // acc being incremented might cause problems
1113 ; Peephole 185 changed order of increment (acc incremented also!)
1138 ; Peephole 186.a optimized movc sequence
1170 ; Peephole 186.b optimized movc sequence
1195 ; Peephole 186.c optimized movc sequence
1213 ; Peephole 186 optimized movc sequence
1223 ; Peephole 187 used a instead of ar%1 for anl
1235 ; Peephole 188 removed redundant mov
1247 ; Peephole 189 removed redundant mov and anl
1252 // rules 190 & 191 need to be in order
1258 ; Peephole 190 removed redundant mov
1270 ; Peephole 191 removed redundant mov
1281 ; Peephole 192 used a instead of ar%1 as source
1298 ; Peephole 193.a optimized misc jump sequence
1308 } if labelRefCount %3 4
1322 ; Peephole 193 optimized misc jump sequence
1332 } if labelRefCount %3 4
1346 ; Peephole 193.a optimized misc jump sequence
1356 } if labelRefCount %3 4
1367 ; Peephole 194 optimized misc jump sequence
1374 } if labelRefCount %3 4
1386 ; Peephole 195.a optimized misc jump sequence
1394 } if labelRefCount %3 3
1406 ; Peephole 195 optimized misc jump sequence
1414 } if labelRefCount %3 3
1426 ; Peephole 195.a optimized misc jump sequence
1434 } if labelRefCount %3 3
1444 ; Peephole 196 optimized misc jump sequence
1450 } if labelRefCount %3 3
1460 ; Peephole 197.a optimized misc jump sequence
1466 } if labelRefCount %3 2
1476 ; Peephole 197 optimized misc jump sequence
1482 } if labelRefCount %3 2
1492 ; Peephole 197.a optimized misc jump sequence
1498 } if labelRefCount %3 2
1507 ; Peephole 198 optimized misc jump sequence
1512 } if labelRefCount %3 2
1520 ; Peephole 199 optimized misc jump sequence
1524 } if labelRefCount %3 1
1530 ; Peephole 200 removed redundant sjmp
1539 ; Peephole 201 removed redundant sjmp
1549 ; Peephole 202 removed redundant push pop
1558 ; Peephole 203 removed mov r%1,_spx
1567 ; Peephole 204 removed redundant mov
1579 ; Peephole 205 optimized misc jump sequence
1583 } if labelRefCount %2 1
1588 ; Peephole 206 removed redundant mov %1,%1
1596 ; Peephole 207 removed zero add (acc not set to %1, flags undefined)
1605 ; Peephole 208 removed redundant push pop
1615 ; Peephole 209 optimized increment (acc not set to %1, flags undefined)
1621 mov dptr,#((((%1 >> 16)) <<16) + (((%1 >> 8)) <<8) + %1)
1623 ; Peephole 210a simplified expression
1628 mov dptr,#((((%1 >> 8)) <<8) + %1)
1630 ; Peephole 210 simplified expression
1638 ; Peephole 211 removed redundant push %1 pop %1
1646 ; Peephole 212 reduced add sequence to inc
1652 mov %1,#(( %2 >> 8 ) ^ 0x80)
1659 mov %1,#(( %2 + %3 >> 8 ) ^ 0x80)
1661 mov %1,#((%2 + %3) >> 8)
1670 ; Peephole 214 reduced some extra movs
1673 } if operandsNotSame
1680 ; Peephole 215 removed some movs
1683 } if operandsNotSame
1693 ; Peephole 216 simplified clear (2bytes)
1712 ; Peephole 217 simplified clear (3bytes)
1736 ; Peephole 218 simplified clear (4bytes)
1755 ; Peephole 219 removed redundant clear
1771 ; Peephole 219a removed redundant clear
1784 ; Peephole 220a removed bogus DPS set
1792 ; Peephole 220b removed bogus DPS set
1797 mov %1 + %2,(%2 + %1)
1799 ; Peephole 221a remove redundant move
1803 mov (%1 + %2 + %3),((%2 + %1) + %3)
1805 ; Peephole 221b remove redundant move
1812 ; removed dec/inc pair
1820 ; Peephole 222 removed DPS abuse.
1831 ; Peephole 222a removed DPS abuse.
1848 ; Peephole 223: yet more DPS abuse removed.
1878 ; Peephole 224a: DPS usage re-arranged.
1892 ; Peephole 224: DPS usage re-arranged.