blob: 165d273432bddd94a3c3f03faa55df3162b7579c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
{ %CPU=i386 }
{ %OPT=-Cg- }
{ Old file: tbs0309.pp }
{ problem with ATT assembler written by bin writer OK 0.99.14 (PFV) }
{ This code was first written by Florian
to test the GDB output for FPU
he thought first that FPU output was wrong
but in fact it is a bug in FPC :( }
program bug0309;
var
a,b : double;
_as,bs : single;
al,bl : extended;
aw,bw : integer;
ai,bi : longint;
ac : comp;
begin
{$ifdef CPU86}
{$asmmode att}
asm
fninit;
end;
a:=1;
b:=2;
asm
movl $1,%eax
fldl a
fldl b
faddp %st,%st(1)
fstpl a
end;
{ the above generates wrong code in binary writer
fldl is replaced by flds !!
if using -alt option to force assembler output
all works correctly PM }
writeln('a = ',a,' should be 3');
if a<>3.0 then
Halt(1);
a:=1.0;
a:=a+b;
writeln('a = ',a,' should be 3');
_as:=0;
al:=0;
asm
fldl a
fsts _as
fstpt al
end;
if (_as<>3.0) or (al<>3.0) then
Halt(1);
ai:=5;
bi:=5;
asm
fildl ai
fstpl a
end;
if a<>5.0 then
Halt(1);
ac:=5;
asm
fildl ai
fstpl a
end;
if a<>5.0 then
Halt(1);
aw:=-4;
bw:=45;
asm
filds aw
fstpl a
end;
if a<>-4.0 then
Halt(1);
ac:=345;
asm
fildq ac
fstpl a
end;
if a<>345.0 then
Halt(1);
{$endif CPU86}
end.
|
