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* Now can use acc for short lived varibles.
[fw/sdcc]
/
src
/
z80
/
peeph.def
1
replace restart {
2
ld %1,%1
3
} by {
4
; Removed redundent load
5
}
6
replace restart {
7
xor a,a
8
or a,%1
9
or a,a
10
jp %2,%3
11
} by {
12
; Removed redundent or a,a
13
xor a,a
14
or a,%1
15
jp %2,%3
16
}
17
replace restart {
18
cp a,#0x00
19
jp nz,%1
20
} by {
21
; Rule 3
22
or a,a
23
jp nz,%1
24
}
25
replace restart {
26
jp nz,%1
27
jp %2
28
%1:
29
jp %3
30
%2:
31
} by {
32
; Rule 4
33
jp z,%2
34
%1:
35
jp %3
36
%2:
37
}
38
replace restart {
39
jp nz,%1
40
jp %2
41
%1:
42
} by {
43
; Rule 5
44
jp z,%2
45
%1:
46
}
47
replace restart {
48
jp z,%1
49
jp %2
50
%1:
51
} by {
52
; Rule 6
53
jp nz,%2
54
%1:
55
}
56
replace restart {
57
%1:
58
jp %2
59
jp %3
60
} by {
61
; Weird Rule 7
62
%1:
63
jp %2
64
}