// pop %1
// push %1
//} by {
-// ; Peephole 1 removed pop %1 push %1 (not push pop)
+// ; Peephole 1 removed pop %1 push %1 (not push pop)
//}
//replace restart {
// mov %2,%3
// push %1
//} by {
-// ; Peephole 2 removed pop %1 push %1 (not push pop)
+// ; Peephole 2 removed pop %1 push %1 (not push pop)
// mov %2,%3
//}
xch a,%1
xch a,%1
} by {
- ; Peephole 2.a removed redundant xch xch
+ ; Peephole 2.a removed redundant xch xch
}
replace restart {
mov %1,#0x00
mov a,#0x00
} by {
- ; Peephole 3.a changed mov to clr
+ ; Peephole 3.a changed mov to clr
clr a
mov %1,a
}
mov %1,#0x00
clr a
} by {
- ; Peephole 3.b changed mov to clr
+ ; Peephole 3.b changed mov to clr
clr a
mov %1,a
}
mov %2,#0x00
mov a,%3
} by {
- ; Peephole 3.c changed mov to clr
+ ; Peephole 3.c changed mov to clr
clr a
mov %1,a
mov %2,a
mov a,%1
movx @dptr,a
} by {
- ; Peephole 100 removed redundant mov
+ ; Peephole 100 removed redundant mov
mov %1,a
mov dptr,#%2
movx @dptr,a
replace {
mov a,acc
} by {
- ; Peephole 100.a removed redundant mov
+ ; Peephole 100.a removed redundant mov
}
replace {
mov a,%1
movx @dptr,a
} by {
- ; Peephole 101 removed redundant mov
+ ; Peephole 101 removed redundant mov
mov a,%1
movx @dptr,a
inc dptr
mov sp,bp
pop bp
} by {
- ; Peephole 102 removed redundant mov
+ ; Peephole 102 removed redundant mov
mov dpl,%2
ljmp %3
%4:
mov sp,bp
pop bp
} by {
- ; Peephole 103 removed redundant mov
+ ; Peephole 103 removed redundant mov
mov dpl,%2
ljmp %3
%4:
add a,#0x01
mov r%1,a
} by {
- ; Peephole 104 optimized increment (acc not set to r%1, flags undefined)
+ ; Peephole 104 optimized increment (acc not set to r%1, flags undefined)
mov r%1,bp
inc r%1
}
mov %1,a
mov a,%1
} by {
- ; Peephole 105 removed redundant mov
+ ; Peephole 105 removed redundant mov
mov %1,a
}
clr c
mov a,%1
} by {
- ; Peephole 106 removed redundant mov
+ ; Peephole 106 removed redundant mov
mov %1,a
clr c
}
ljmp %1
%1:
} by {
- ; Peephole 107 removed redundant ljmp
+ ; Peephole 107 removed redundant ljmp
%1:
}
ljmp %5
%1:
} by {
- ; Peephole 108 removed ljmp by inverse jump logic
+ ; Peephole 108 removed ljmp by inverse jump logic
jnc %5
%1:
} if labelInRange
ljmp %5
%1:
} by {
- ; Peephole 109 removed ljmp by inverse jump logic
+ ; Peephole 109 removed ljmp by inverse jump logic
jnz %5
%1:
} if labelInRange
ljmp %5
%1:
} by {
- ; Peephole 110 removed ljmp by inverse jump logic
+ ; Peephole 110 removed ljmp by inverse jump logic
jz %5
%1:
} if labelInRange
ljmp %5
%2:
} by {
- ; Peephole 111 removed ljmp by inverse jump logic
+ ; Peephole 111 removed ljmp by inverse jump logic
jnb %1,%5
%2:
} if labelInRange
ljmp %5
%2:
} by {
- ; Peephole 112 removed ljmp by inverse jump logic
+ ; Peephole 112 removed ljmp by inverse jump logic
jb %1,%5
%2:
} if labelInRange
ljmp %5
%1:
} by {
- ; Peephole 132 changed ljmp to sjmp
+ ; Peephole 132 changed ljmp to sjmp
sjmp %5
%1:
} if labelInRange
rrc a
mov %4,c
} by {
- ; Peephole 113 optimized misc sequence
+ ; Peephole 113 optimized misc sequence
clr %4
cjne %1,%2,%3
setb %4
rrc a
mov %4,c
} by {
- ; Peephole 114 optimized misc sequence
+ ; Peephole 114 optimized misc sequence
clr %4
cjne %1,%2,%3
cjne %10,%11,%3
%3:
jnz %4
} by {
- ; Peephole 115 jump optimization
+ ; Peephole 115 jump optimization
cjne %1,%2,%3
sjmp %4
%3:
%3:
jnz %4
} by {
- ; Peephole 116 jump optimization
+ ; Peephole 116 jump optimization
cjne %1,%2,%3
cjne %9,%10,%3
sjmp %4
%3:
jnz %4
} by {
- ; Peephole 117 jump optimization
+ ; Peephole 117 jump optimization
cjne %1,%2,%3
cjne %9,%10,%3
cjne %11,%12,%3
%3:
jnz %4
} by {
- ; Peephole 118 jump optimization
+ ; Peephole 118 jump optimization
cjne %1,%2,%3
cjne %9,%10,%3
cjne %11,%12,%3
%3:
jnz %4
} by {
- ; Peephole 119 jump optimization
+ ; Peephole 119 jump optimization
cjne %1,%2,%4
%3:
} if labelRefCount %3 1
%3:
jnz %4
} by {
- ; Peephole 120 jump optimization
+ ; Peephole 120 jump optimization
cjne %1,%2,%4
cjne %10,%11,%4
%3:
%3:
jnz %4
} by {
- ; Peephole 121 jump optimization
+ ; Peephole 121 jump optimization
cjne %1,%2,%4
cjne %10,%11,%4
cjne %12,%13,%4
%3:
jnz %4
} by {
- ; Peephole 122 jump optimization
+ ; Peephole 122 jump optimization
cjne %1,%2,%4
cjne %10,%11,%4
cjne %12,%13,%4
%3:
jz %4
} by {
- ; Peephole 123 jump optimization
+ ; Peephole 123 jump optimization
cjne %1,%2,%3
smp %4
%3:
%3:
jz %4
} by {
- ; Peephole 124 jump optimization
+ ; Peephole 124 jump optimization
cjne %1,%2,%3
cjne %10,%11,%3
sjmp %4
%3:
jz %4
} by {
- ; Peephole 125 jump optimization
+ ; Peephole 125 jump optimization
cjne %1,%2,%3
cjne %10,%11,%3
cjne %12,%13,%3
%3:
jz %4
} by {
- ; Peephole 126 jump optimization
+ ; Peephole 126 jump optimization
cjne %1,%2,%3
cjne %10,%11,%3
cjne %12,%13,%3
pop psw
ret
} by {
- ; Peephole 127 removed misc sequence
+ ; Peephole 127 removed misc sequence
ret
} if labelRefCount %3 0
rlc a
jz %1
} by {
- ; Peephole 128 jump optimization
+ ; Peephole 128 jump optimization
jnc %1
}
rlc a
jnz %1
} by {
- ; Peephole 129 jump optimization
+ ; Peephole 129 jump optimization
jc %1
}
replace {
mov r%1,@r%2
} by {
- ; Peephole 130 changed target address mode r%1 to ar%1
+ ; Peephole 130 changed target address mode r%1 to ar%1
mov ar%1,@r%2
}
mov %2,a
mov %1,%2
} by {
- ; Peephole 131 optimized decrement (not caring for c)
+ ; Peephole 131 optimized decrement (not caring for c)
dec %1
mov %2,%1
}
mov r%4,%2
mov @r%4,ar%3
} by {
- ; Peephole 133 removed redundant moves
+ ; Peephole 133 removed redundant moves
mov r%1,%2
inc @r%1
mov ar%3,@r%1
mov r%4,%2
mov @r%4,ar%3
} by {
- ; Peephole 134 removed redundant moves
+ ; Peephole 134 removed redundant moves
mov r%1,%2
dec @r%1
mov ar%3,@r%1
mov a,r%2
orl a,r%1
} by {
- ; Peephole 135 removed redundant mov
+ ; Peephole 135 removed redundant mov
mov r%1,a
orl a,r%2
}
mov dph,%3
mov a,%1
} by {
- ; Peephole 136 removed redundant moves
+ ; Peephole 136 removed redundant moves
mov %1,a
mov dpl,%2
mov dph,%3
// mov a,b
// jz %5
//} by {
-// ; Peephole 137 optimized misc jump sequence
+// ; Peephole 137 optimized misc jump sequence
// mov a,%1
// cjne %2,%3,%5
//%4:
// mov a,b
// jnz %5
//} by {
-// ; Peephole 138 optimized misc jump sequence
+// ; Peephole 138 optimized misc jump sequence
// mov a,%1
// cjne %2,%3,%4
// sjmp %5
anl ar%1,%2
mov a,r%1
} by {
- ; Peephole 139 removed redundant mov
+ ; Peephole 139 removed redundant mov
anl a,%2
mov r%1,a
}
orl ar%1,%2
mov a,r%1
} by {
- ; Peephole 140 removed redundant mov
+ ; Peephole 140 removed redundant mov
orl a,%2
mov r%1,a }
xrl ar%1,%2
mov a,r%1
} by {
- ; Peephole 141 removed redundant mov
+ ; Peephole 141 removed redundant mov
xrl a,%2
mov r%1,a
}
mov r%2,ar%1
mov ar%1,@r%2
} by {
- ; Peephole 142 removed redundant moves
+ ; Peephole 142 removed redundant moves
mov r%2,a
mov ar%1,@r%2
}
rlc a
mov acc.0,c
} by {
- ; Peephole 143 converted rlc to rl
+ ; Peephole 143 converted rlc to rl
rl a
}
rrc a
mov acc.7,c
} by {
- ; Peephole 144 converted rrc to rc
+ ; Peephole 144 converted rrc to rc
rr a
}
clr c
addc a,%1
} by {
- ; Peephole 145 changed to add without carry
+ ; Peephole 145 changed to add without carry
add a,%1
}
mov a,%1
addc a,%2
} by {
- ; Peephole 146 changed to add without carry
+ ; Peephole 146 changed to add without carry
mov a,%1
add a,%2
}
replace {
orl r%1,a
} by {
- ; Peephole 147 changed target address mode r%1 to ar%1
+ ; Peephole 147 changed target address mode r%1 to ar%1
orl ar%1,a
}
replace {
anl r%1,a
} by {
- ; Peephole 148 changed target address mode r%1 to ar%1
+ ; Peephole 148 changed target address mode r%1 to ar%1
anl ar%1,a
}
replace {
xrl r%1,a
} by {
- ; Peephole 149 changed target address mode r%1 to ar%1
+ ; Peephole 149 changed target address mode r%1 to ar%1
xrl ar%1,a
}
%9:
ret
} by {
- ; Peephole 150 removed misc moves via dpl before return
+ ; Peephole 150 removed misc moves via dpl before return
%9:
ret
}
%9:
ret
} by {
- ; Peephole 151 removed misc moves via dph, dpl before return
+ ; Peephole 151 removed misc moves via dph, dpl before return
%9:
ret
}
%9:
ret
} by {
- ; Peephole 152 removed misc moves via dph, dpl before return
+ ; Peephole 152 removed misc moves via dph, dpl before return
%9:
ret
}
%9:
ret
} by {
- ; Peephole 153 removed misc moves via dph, dpl, b before return
+ ; Peephole 153 removed misc moves via dph, dpl, b before return
%9:
ret
}
%9:
ret
} by {
- ; Peephole 154 removed misc moves via dph, dpl, b before return
+ ; Peephole 154 removed misc moves via dph, dpl, b before return
%9:
ret
}
%9:
ret
} by {
- ; Peephole 155 removed misc moves via dph, dpl, b before return
+ ; Peephole 155 removed misc moves via dph, dpl, b before return
%9:
ret
}
%9:
ret
} by {
- ; Peephole 156 removed misc moves via dph, dpl, b, a before return
+ ; Peephole 156 removed misc moves via dph, dpl, b, a before return
%9:
ret
}
%9:
ret
} by {
- ; Peephole 157 removed misc moves via dph, dpl, b, a before return
+ ; Peephole 157 removed misc moves via dph, dpl, b, a before return
%9:
ret
}
mov dpl,%1
%9:
ret } by {
- ; Peephole 158 removed misc moves via dph, dpl, b, a before return
+ ; Peephole 158 removed misc moves via dph, dpl, b, a before return
%9:
ret }
mov %1,#%2
xrl %1,#0x80
} by {
- ; Peephole 159 avoided xrl during execution
+ ; Peephole 159 avoided xrl during execution
mov %1,#(%2 ^ 0x80)
}
sjmp %2
%1:
} by {
- ; Peephole 160 removed sjmp by inverse jump logic
+ ; Peephole 160 removed sjmp by inverse jump logic
jc %2
%1:}
sjmp %2
%1:
} by {
- ; Peephole 161 removed sjmp by inverse jump logic
+ ; Peephole 161 removed sjmp by inverse jump logic
jnc %2
%1:}
sjmp %2
%1:
} by {
- ; Peephole 162 removed sjmp by inverse jump logic
+ ; Peephole 162 removed sjmp by inverse jump logic
jz %2
%1:}
sjmp %2
%1:
} by {
- ; Peephole 163 removed sjmp by inverse jump logic
+ ; Peephole 163 removed sjmp by inverse jump logic
jnz %2
%1:}
sjmp %2
%1:
} by {
- ; Peephole 164 removed sjmp by inverse jump logic
+ ; Peephole 164 removed sjmp by inverse jump logic
jb %3,%2
%1:
}
sjmp %2
%1:
} by {
- ; Peephole 165 removed sjmp by inverse jump logic
+ ; Peephole 165 removed sjmp by inverse jump logic
jnb %3,%2
%1:
}
mov %3,%1
mov %2,%1
} by {
- ; Peephole 166 removed redundant mov
+ ; Peephole 166 removed redundant mov
mov %1,%2
mov %3,%1 }
cpl c
mov %1,c
} by {
- ; Peephole 167 removed redundant bit moves (c not set to %1)
+ ; Peephole 167 removed redundant bit moves (c not set to %1)
cpl %1 }
replace {
jnb %1,%2
sjmp %3
%2:} by {
- ; Peephole 168 jump optimization
+ ; Peephole 168 jump optimization
jb %1,%3
%2:}
jb %1,%2
sjmp %3
%2:} by {
- ; Peephole 169 jump optimization
+ ; Peephole 169 jump optimization
jnb %1,%3
%2:}
%3:
jz %4
} by {
- ; Peephole 170 jump optimization
+ ; Peephole 170 jump optimization
cjne %1,%2,%4
%3:
} if labelRefCount %3 1
%3:
jz %4
} by {
- ; Peephole 171 jump optimization
+ ; Peephole 171 jump optimization
cjne %1,%2,%4
cjne %9,%10,%4
%3:
%3:
jz %4
} by {
- ; Peephole 172 jump optimization
+ ; Peephole 172 jump optimization
cjne %1,%2,%4
cjne %9,%10,%4
cjne %11,%12,%4
%3:
jz %4
} by {
- ; Peephole 173 jump optimization
+ ; Peephole 173 jump optimization
cjne %1,%2,%4
cjne %9,%10,%4
cjne %11,%12,%4
subb a,#0x01
mov %2,a
} by {
- ; Peephole 174 optimized decrement (acc not set to %2, flags undefined)
+ ; Peephole 174 optimized decrement (acc not set to %2, flags undefined)
mov r%1,%2
dec %2
}
add a,#0x01
mov %2,a
} by {
- ; Peephole 175 optimized increment (acc not set to %2, flags undefined)
+ ; Peephole 175 optimized increment (acc not set to %2, flags undefined)
mov r%1,%2
inc %2
}
inc %1
mov @r%2,%1
} by {
- ; Peephole 176 optimized increment, removed redundant mov
+ ; Peephole 176 optimized increment, removed redundant mov
inc @r%2
mov %1,@r%2
}
// mov %1,%2
// mov %2,%1
//} by {
-// ; Peephole 177 removed redundant mov
+// ; Peephole 177 removed redundant mov
// mov %1,%2
//}
mov b,a
mov a,%2
} by {
- ; Peephole 178 removed redundant mov
+ ; Peephole 178 removed redundant mov
mov b,%1
mov a,%2
}
mov b,#0x00
mov a,#0x00
} by {
- ; Peephole 179 changed mov to clr
+ ; Peephole 179 changed mov to clr
clr a
mov b,a
}
replace {
mov a,#0x00
} by {
- ; Peephole 180 changed mov to clr
+ ; Peephole 180 changed mov to clr
clr a
}
mov dpl,#0x00
mov dph,#0x00
} by {
- ; Peephole 181 used 16 bit load of dptr
+ ; Peephole 181 used 16 bit load of dptr
mov dptr,#0x0000
}
+// saving 3 bytes, 2 cycles
+// provided by Bernhard Held <bernhard.held@de.westinghouse.com>
+replace {
+ mov dpl,#%1
+ mov dph,#(%1 >> 8)
+} by {
+ ; Peephole 182a use 16 bit load of DPTR
+ mov dptr,#%1
+}
+
// saving 3 byte, 2 cycles, return(float_constant) profits here
replace {
mov dpl,#%1
mov dph,#%2
} by {
- ; Peephole 182 used 16 bit load of dptr
+ ; Peephole 182 used 16 bit load of dptr
mov dptr,#(((%2)<<8) + %1)
}
anl %1,#%2
anl %1,#%3
} by {
- ; Peephole 183 avoided anl during execution
+ ; Peephole 183 avoided anl during execution
anl %1,#(%2 & %3)
}
cpl a
mov %1,a
} by {
- ; Peephole 184 removed redundant mov
+ ; Peephole 184 removed redundant mov
cpl a
mov %1,a
}
mov %1,a
inc %1
} by {
- ; Peephole 185 changed order of increment (acc incremented also!)
+ ; Peephole 185 changed order of increment (acc incremented also!)
inc a
mov %1,a
}
inc dptr
clr a
} by {
- ; Peephole 186.a optimized movc sequence
+ ; Peephole 186.a optimized movc sequence
mov dptr,#%1
mov b,acc
movc a,@a+dptr
inc dptr
clr a
} by {
- ; Peephole 186.b optimized movc sequence
+ ; Peephole 186.b optimized movc sequence
mov dptr,#%1
mov b,acc
movc a,@a+dptr
inc dptr
clr a
} by {
- ; Peephole 186.c optimized movc sequence
+ ; Peephole 186.c optimized movc sequence
mov dptr,#%1
mov b,acc
movc a,@a+dptr
clr a
movc a,@a+dptr
} by {
- ; Peephole 186 optimized movc sequence
+ ; Peephole 186 optimized movc sequence
mov dptr,#%1
movc a,@a+dptr
}
anl ar%1,#%3
mov a,r%1
} by {
- ; Peephole 187 used a instead of ar%1 for anl
+ ; Peephole 187 used a instead of ar%1 for anl
mov a,%2
anl a,#%3
mov r%1,a
movc a,@a+dptr
mov %1,a
} by {
- ; Peephole 188 removed redundant mov
+ ; Peephole 188 removed redundant mov
mov dptr,%2
movc a,@a+dptr
mov %1,a
mov a,#0x0f
anl a,%1
} by {
- ; Peephole 189 removed redundant mov and anl
+ ; Peephole 189 removed redundant mov and anl
anl a,#0x0f
mov %1,a
}
lcall __gptrput
mov a,%1
} by {
- ; Peephole 190 removed redundant mov
+ ; Peephole 190 removed redundant mov
mov a,%1
lcall __gptrput
}
mov b,%4
mov a,%1
} by {
- ; Peephole 191 removed redundant mov
+ ; Peephole 191 removed redundant mov
mov %1,a
mov dpl,%2
mov dph,%3
mov r%1,a
mov @r%2,ar%1
} by {
- ; Peephole 192 used a instead of ar%1 as source
+ ; Peephole 192 used a instead of ar%1 as source
mov r%1,a
mov @r%2,a
}
%3:
sjmp %8
} by {
- ; Peephole 193.a optimized misc jump sequence
+ ; Peephole 193.a optimized misc jump sequence
jnz %8
mov a,%4
jnz %8
%3:
sjmp %8
} by {
- ; Peephole 193 optimized misc jump sequence
+ ; Peephole 193 optimized misc jump sequence
cjne %1,%2,%8
mov a,%4
cjne %5,%6,%8
%3:
sjmp %8
} by {
- ; Peephole 193.a optimized misc jump sequence
+ ; Peephole 193.a optimized misc jump sequence
cjne @%1,%2,%8
inc %1
cjne @%1,%6,%8
%3:
sjmp %8
} by {
- ; Peephole 194 optimized misc jump sequence
+ ; Peephole 194 optimized misc jump sequence
cjne %1,%2,%8
cjne %5,%6,%8
cjne %10,%11,%8
%3:
sjmp %8
} by {
- ; Peephole 195.a optimized misc jump sequence
+ ; Peephole 195.a optimized misc jump sequence
jnz %8
mov a,%4
jnz %8
%3:
sjmp %8
} by {
- ; Peephole 195 optimized misc jump sequence
+ ; Peephole 195 optimized misc jump sequence
cjne %1,%2,%8
mov a,%4
cjne %5,%6,%8
%3:
sjmp %8
} by {
- ; Peephole 195.a optimized misc jump sequence
+ ; Peephole 195.a optimized misc jump sequence
cjne @%1,%2,%8
inc %1
cjne @%1,%6,%8
%3:
sjmp %8
} by {
- ; Peephole 196 optimized misc jump sequence
+ ; Peephole 196 optimized misc jump sequence
cjne %1,%2,%8
cjne %5,%6,%8
cjne %10,%11,%8
%3:
sjmp %8
} by {
- ; Peephole 197.a optimized misc jump sequence
+ ; Peephole 197.a optimized misc jump sequence
jnz %8
mov a,%4
cjne %5,%6,%8
%3:
sjmp %8
} by {
- ; Peephole 197 optimized misc jump sequence
+ ; Peephole 197 optimized misc jump sequence
cjne %1,%2,%8
mov a,%4
cjne %5,%6,%8
%3:
sjmp %8
} by {
- ; Peephole 197.a optimized misc jump sequence
+ ; Peephole 197.a optimized misc jump sequence
cjne @%1,%2,%8
inc %1
cjne @%1,%6,%8
%3:
sjmp %8
} by {
- ; Peephole 198 optimized misc jump sequence
+ ; Peephole 198 optimized misc jump sequence
cjne %1,%2,%8
cjne %5,%6,%8
sjmp %7
%3:
sjmp %5
} by {
- ; Peephole 199 optimized misc jump sequence
+ ; Peephole 199 optimized misc jump sequence
cjne %1,%2,%5
sjmp %4
;%3:
sjmp %1
%1:
} by {
- ; Peephole 200 removed redundant sjmp
+ ; Peephole 200 removed redundant sjmp
%1:
}
%2:
%1:
} by {
- ; Peephole 201 removed redundant sjmp
+ ; Peephole 201 removed redundant sjmp
%2:
%1:
}
mov dptr,%1
pop acc
} by {
- ; Peephole 202 removed redundant push pop
+ ; Peephole 202 removed redundant push pop
mov dptr,%1
}
lcall %2
mov r%1,_spx
} by {
- ; Peephole 203 removed mov r%1,_spx
+ ; Peephole 203 removed mov r%1,_spx
lcall %2
}
add a,acc
mov %1,a
} by {
- ; Peephole 204 removed redundant mov
+ ; Peephole 204 removed redundant mov
add a,acc
mov %1,a
}
sjmp %4
%3:
} by {
- ; Peephole 205 optimized misc jump sequence
+ ; Peephole 205 optimized misc jump sequence
djnz %1,%4
%2:
%3:
replace {
mov %1,%1
} by {
- ; Peephole 206 removed redundant mov %1,%1
+ ; Peephole 206 removed redundant mov %1,%1
}
replace {
add a,#0x00
mov %1,a
} by {
- ; Peephole 207 removed zero add (acc not set to %1, flags undefined)
+ ; Peephole 207 removed zero add (acc not set to %1, flags undefined)
mov %1,_bp
}
mov r%1,_bp
pop acc
} by {
- ; Peephole 208 removed redundant push pop
+ ; Peephole 208 removed redundant push pop
mov r%1,_bp
}
inc a
mov %1,a
} by {
- ; Peephole 209 optimized increment (acc not set to %1, flags undefined)
+ ; Peephole 209 optimized increment (acc not set to %1, flags undefined)
mov %1,_bp
inc %1
}
replace {
mov dptr,#((((%1 >> 8)) <<8) + %1)
} by {
- ; Peephole 210 simplified expression
+ ; Peephole 210 simplified expression
mov dptr,#%1
}
push %1
pop %1
} by {
- ; Peephole 211 removed redundant push %1 pop %1
+ ; Peephole 211 removed redundant push %1 pop %1
}
replace {
add a,#0x01
mov r%1,a
} by {
- ; Peephole 212 reduced add sequence to inc
+ ; Peephole 212 reduced add sequence to inc
mov r%1,_bp
inc r%1
}
mov a,%2
add a,%1
} by {
- ; Peephole 214 reduced some extra movs
+ ; Peephole 214 reduced some extra movs
mov %1,a
add a,%2
} if operandsNotSame
add a,%2
mov %1,a
} by {
- ; Peephole 215 removed some movs
+ ; Peephole 215 removed some movs
add a,%2
mov %1,a
} if operandsNotSame
dec r%1
mov @r%1,a
} by {
- ; Peephole 216 simplified clear (2bytes)
+ ; Peephole 216 simplified clear (2bytes)
mov r%1,%2
clr a
mov @r%1,a
dec r%1
mov @r%1,a
} by {
- ; Peephole 217 simplified clear (3bytes)
+ ; Peephole 217 simplified clear (3bytes)
mov r%1,%2
clr a
mov @r%1,a
dec r%1
mov @r%1,a
} by {
- ; Peephole 218 simplified clear (4bytes)
+ ; Peephole 218 simplified clear (4bytes)
mov r%1,%2
clr a
mov @r%1,a
clr a
movx @dptr,a
} by {
- ; Peephole 219 removed redundant clear
+ ; Peephole 219 removed redundant clear
clr a
movx @dptr,a
mov dptr,%1
clr a
movx @dptr,a
} by {
- ; Peephole 219a removed redundant clear
+ ; Peephole 219a removed redundant clear
clr a
movx @dptr,a
mov dptr,%1
mov dps, #0x00
mov dps, #0x01
} by {
- ; Peephole 220a removed bogus DPS set
+ ; Peephole 220a removed bogus DPS set
mov dps, #0x01
}
mov dps, #0x01
mov dps, #0x00
} by {
- ; Peephole 220b removed bogus DPS set
+ ; Peephole 220b removed bogus DPS set
mov dps, #0x00
}
replace {
mov %1 + %2,(%2 + %1)
} by {
- ; Peephole 221a remove redundant move
+ ; Peephole 221a remove redundant move
}
replace {
mov (%1 + %2 + %3),((%2 + %1) + %3)
} by {
- ; Peephole 221b remove redundant move
+ ; Peephole 221b remove redundant move
}
replace {
}
replace {
- mov dps, #0x00
- mov dp%1,a
- mov dps, #0x01
+ mov %1,dpl
+ mov %2,dph
+ mov dpl,%1
+ mov dph,%2
} by {
- ; Peephole 222 removed DPS abuse.
- mov dp%1,a
- mov dps, #0x01
+ ; Peephole 223 removed redundant dph/dpl moves
+ mov %1,dpl
+ mov %2,dph
+}
+
+replace {
+ mov %1,dpl
+ mov (%1 + 1),dph
+ mov dpl,%1
+ mov dph,(%1 + 1)
+} by {
+ ; Peephole 224 removed redundant dph/dpl moves
+ mov %1,dpl
+ mov (%1 + 1),dph
+}
+
+replace {
+ mov a,%1
+ movx @dptr,a
+ mov dpl,%2
+ mov dph,%3
+ mov b,%4
+ mov a,%1
+} by {
+ ; Peephole 225 removed redundant move to acc
+ mov a,%1
+ movx @dptr,a
+ mov dpl,%2
+ mov dph,%3
+ mov b,%4
+}
+
+replace {
+ clr a
+ movx @dptr,a
+ inc dptr
+ movx @dptr,a
+ inc dptr
+ clr a
+} by {
+ ; Peephole 226 removed unnecessary clr
+ clr a
+ movx @dptr,a
+ inc dptr
+ movx @dptr,a
+ inc dptr
+}
+
+replace {
+ mov dptr,#%1
+ clr a
+ inc dptr
+ inc dptr
+ inc dptr
+ movx @dptr,a
+ lcall __decdptr
+ movx @dptr,a
+ lcall __decdptr
+ movx @dptr,a
+ lcall __decdptr
+ movx @dptr,a
+} by {
+ ; Peephole 227 replaced inefficient 32 bit clear
+ mov dptr,#%1
+ clr a
+ movx @dptr,a
+ inc dptr
+ movx @dptr,a
+ inc dptr
+ movx @dptr,a
+ inc dptr
+ movx @dptr,a
+ mov dptr,#%1
+}
+
+replace {
+ mov dptr,#%1
+ clr a
+ inc dptr
+ inc dptr
+ inc dptr
+ movx @dptr,a
+ lcall __decdptr
+ movx @dptr,a
+ lcall __decdptr
+ movx @dptr,a
+ lcall __decdptr
+ mov a,#%2
+ movx @dptr,a
+} by {
+ ; Peephole 228 replaced inefficient 32 constant
+ mov dptr,#%1
+ mov a, #%2
+ movx @dptr,a
+ inc dptr
+ clr a
+ movx @dptr,a
+ inc dptr
+ movx @dptr,a
+ inc dptr
+ movx @dptr,a
+ mov dptr,#%1
+}
+
+replace {
+ mov dptr,#%1
+ clr a
+ inc dptr
+ movx @dptr,a
+ lcall __decdptr
+ movx @dptr,a
+} by {
+ ; Peephole 229 replaced inefficient 16 bit clear
+ mov dptr,#%1
+ clr a
+ movx @dptr,a
+ inc dptr
+ movx @dptr,a
+ mov dptr,#%1
+}
+
+replace {
+ mov dptr,#%1
+ clr a
+ inc dptr
+ movx @dptr,a
+ lcall __decdptr
+ mov a,#%2
+ movx @dptr,a
+} by {
+ ; Peephole 230 replaced inefficient 16 constant
+ mov dptr,#%1
+ mov a,#%2
+ movx @dptr,a
+ inc dptr
+ clr a
+ movx @dptr,a
+ mov dptr,#%1
+}
+
+// this last peephole often removes the last mov from 227-230
+replace {
+ mov dptr,#%1
+ mov dptr,#%2
+} by {
+ ; Peephole 231 removed redundant mov to dptr
+ mov dptr,#%2
+}
+
+replace {
+ movx a,@dptr
+} by {
+ ; Peephole 232 using movc to read xdata (--xram-movc)
+ clr a
+ movc a,@a+dptr
+} if xramMovcOption
+
+replace {
+ lcall _gptrget
+} by {
+ ; Peephole 233 using _gptrgetc instead of _gptrget (--xram-movc)
+ lcall _gptrgetc
+} if xramMovcOption
+
+replace {
+ mov r%1,a
+ mov dpl,r%1
+%2:
+ ret
+} by {
+ ; Peephole 234 loading dpl directly from a(ccumulator)
+ mov dpl,a
+%2:
+ ret
+}
+
+replace {
+ mov r%1,a
+ mov dpl,r%2
+ mov dph,r%1
+%3:
+ ret
+} by {
+ ; Peephole 235 loading dph directly from a(ccumulator)
+ mov dpl,r%2
+ mov dph,a
+%3:
+ ret
+}
+
+// 14 rules by Fiorenzo D. Ramaglia <fd.ramaglia@tin.it>
+
+replace {
+ add a,ar%1
+} by {
+ ; Peephole 236a
+ add a,r%1
+}
+
+replace {
+ addc a,ar%1
+} by {
+ ; Peephole 236b
+ addc a,r%1
+}
+
+replace {
+ anl a,ar%1
+} by {
+ ; Peephole 236c
+ anl a,r%1
+}
+
+replace {
+ dec ar%1
+} by {
+ ; Peephole 236d
+ dec r%1
+}
+
+replace {
+ djnz ar%1,%2
+} by {
+ ; Peephole 236e
+ djnz r%1,%2
+}
+
+replace {
+ inc ar%1
+} by {
+ ; Peephole 236f
+ inc r%1
+}
+
+replace {
+ mov a,ar%1
+} by {
+ ; Peephole 236g
+ mov a,r%1
+}
+
+replace {
+ mov ar%1,#%2
+} by {
+ ; Peephole 236h
+ mov r%1,#%2
+}
+
+replace {
+ mov ar%1,a
+} by {
+ ; Peephole 236i
+ mov r%1,a
+}
+
+replace {
+ mov ar%1,ar%2
+} by {
+ ; Peephole 236j
+ mov r%1,ar%2
+}
+
+replace {
+ orl a,ar%1
+} by {
+ ; Peephole 236k
+ orl a,r%1
+}
+
+replace {
+ subb a,ar%1
+} by {
+ ; Peephole 236l
+ subb a,r%1
+}
+
+replace {
+ xch a,ar%1
+} by {
+ ; Peephole 236m
+ xch a,r%1
+}
+
+replace {
+ xrl a,ar%1
+} by {
+ ; Peephole 236n
+ xrl a,r%1
+}
+
+replace {
+ sjmp %1
+%2:
+ mov %3,%4
+%1:
+ ret
+} by {
+ ; Peephole 237a removed sjmp to ret
+ ret
+%2:
+ mov %3,%4
+%1:
+ ret
+}
+
+replace {
+ sjmp %1
+%2:
+ mov %3,%4
+ mov dpl,%5
+ mov dph,%6
+%1:
+ ret
+} by {
+ ; Peephole 237b removed sjmp to ret
+ ret
+%2:
+ mov %3,%4
+ mov dpl,%5
+ mov dph,%6
+%1:
+ ret
}
projects / fw / sdcc / blobdiff