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OverHertz Studio | [1518] - posted: 2015-01-25 17:06:29
Fixed this for next release, seems I forgot to update this part of the code. Thanks for report.
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0CodErr
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| [1523] - posted: 2015-01-26 14:04:52
This is one of my tests again:
Code:program RAW_IMAGE 'test';
#set bits 32;
inline procedure with_gp_regs(;){
$x = 0;
$repeat $argc:
do_action($arg[$x], gp_ax, gp_bx, gp_cx, gp_dx, gp_si, gp_di, gp_bp, gp_sp);
$x = $x + 1;
$end
}
inline procedure do_action(;){
$max = $argc - 1;
$x = 1;
$repeat $max:
$y = 1;
$repeat $max:
$arg[0] $arg[$x], $arg[$y];
$y = $y + 1;
$end
$x = $x + 1;
$end
}
with_gp_regs(adc, add, and, bsf, bsr, bt, btc,
btr, bts, cmp, cmpxchg, or, sbb,
sub, test, xadd, xchg, xor);
Seems that something wrong with this(only part of output):
Code:; ......................................
000009DF 0FC1FD xadd ebp,edi
000009E2 0FC1ED xadd ebp,ebp
000009E5 0FC1E5 xadd ebp,esp
000009E8 0FC1C4 xadd esp,eax
000009EB 0FC1DC xadd esp,ebx
000009EE 0FC1CC xadd esp,ecx
000009F1 0FC1D4 xadd esp,edx
000009F4 0FC1F4 xadd esp,esi
000009F7 0FC1FC xadd esp,edi
000009FA 0FC1EC xadd esp,ebp
000009FD 0FC1E4 xadd esp,esp
00000A00 90 nop
00000A01 93 xchg eax,ebx
00000A02 91 xchg eax,ecx
00000A03 92 xchg eax,edx
00000A04 96 xchg eax,esi
00000A05 97 xchg eax,edi
00000A06 95 xchg eax,ebp
00000A07 94 xchg eax,esp
00000A08 93 xchg eax,ebx
00000A09 86DB xchg bl,bl
00000A0B 86CB xchg cl,bl
00000A0D 86D3 xchg dl,bl
00000A0F 86F3 xchg dh,bl
00000A11 86FB xchg bh,bl
00000A13 86EB xchg ch,bl
00000A15 86E3 xchg ah,bl
00000A17 91 xchg eax,ecx
00000A18 86D9 xchg bl,cl
00000A1A 86C9 xchg cl,cl
00000A1C 86D1 xchg dl,cl
00000A1E 86F1 xchg dh,cl
00000A20 86F9 xchg bh,cl
00000A22 86E9 xchg ch,cl
00000A24 86E1 xchg ah,cl
00000A26 92 xchg eax,edx
00000A27 86DA xchg bl,dl
00000A29 86CA xchg cl,dl
00000A2B 86D2 xchg dl,dl
; ......................................
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OverHertz Studio | [1524] - posted: 2015-01-26 19:58:49
Thanks for the report, I have fixed the xchg opcode for next release.
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0CodErr
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| [1542] - posted: 2015-01-29 17:19:06
About copying values of smaller size to a larger size.
Currently we can do:
Code:
or as
Code:eax = [byte]dl;
eax = [word]dx;
seems this usable 
But this not work with signed values:
Code:eax = [sbyte]dl;
eax = [int16]dx;
Result:
Code:00000006 0FB6C2 movzx eax,dl
0000000F 0FB7C2 movzx eax,dx
Also incorrect work(but with dword seems correct):
Code:eax = dword[eax];
eax = word[eax];
eax = byte[eax];
eax = dword[eax + edx];
eax = word[eax + edx];
eax = byte[eax + edx];
eax = dword[eax + edx*2];
eax = word[eax + edx*2];
eax = byte[eax + edx*2];
eax = dword[eax + edx*4];
eax = word[eax + edx*4];
eax = byte[eax + edx*4];
eax = dword[eax + edx*8];
eax = word[eax + edx*8];
eax = byte[eax + edx*8];
eax = dword[eax + 0x100500];
eax = word[eax + 0x100500];
eax = byte[eax + 0x100500];
eax = dword[eax + edx + 0x100500];
eax = word[eax + edx + 0x100500];
eax = byte[eax + edx + 0x100500];
eax = dword[eax + edx*2 + 0x100500];
eax = word[eax + edx*2 + 0x100500];
eax = byte[eax + edx*2 + 0x100500];
eax = dword[eax + edx*4 + 0x100500];
eax = word[eax + edx*4 + 0x100500];
eax = byte[eax + edx*4 + 0x100500];
eax = dword[eax + edx*8 + 0x100500];
eax = word[eax + edx*8 + 0x100500];
eax = byte[eax + edx*8 + 0x100500];
Result:
Code:00000012 8B00 mov eax,[eax]
00000014 8B00 mov eax,[eax]
00000016 8B00 mov eax,[eax]
00000018 8B0410 mov eax,[eax+edx]
0000001B 8B0410 mov eax,[eax+edx]
0000001E 8B0410 mov eax,[eax+edx]
00000021 8B0450 mov eax,[eax+edx*2]
00000024 8B0450 mov eax,[eax+edx*2]
00000027 8B0450 mov eax,[eax+edx*2]
0000002A 8B0490 mov eax,[eax+edx*4]
0000002D 8B0490 mov eax,[eax+edx*4]
00000030 8B0490 mov eax,[eax+edx*4]
00000033 8B04D0 mov eax,[eax+edx*8]
00000036 8B04D0 mov eax,[eax+edx*8]
00000039 8B04D0 mov eax,[eax+edx*8]
0000003C 8B8000051000 mov eax,[eax+0x100500]
00000042 8B8000051000 mov eax,[eax+0x100500]
00000048 8B8000051000 mov eax,[eax+0x100500]
0000004E 8B841000051000 mov eax,[eax+edx+0x100500]
00000055 8B841000051000 mov eax,[eax+edx+0x100500]
0000005C 8B841000051000 mov eax,[eax+edx+0x100500]
00000063 8B845000051000 mov eax,[eax+edx*2+0x100500]
0000006A 8B845000051000 mov eax,[eax+edx*2+0x100500]
00000071 8B845000051000 mov eax,[eax+edx*2+0x100500]
00000078 8B849000051000 mov eax,[eax+edx*4+0x100500]
0000007F 8B849000051000 mov eax,[eax+edx*4+0x100500]
00000086 8B849000051000 mov eax,[eax+edx*4+0x100500]
0000008D 8B84D000051000 mov eax,[eax+edx*8+0x100500]
00000094 8B84D000051000 mov eax,[eax+edx*8+0x100500]
0000009B 8B84D000051000 mov eax,[eax+edx*8+0x100500]
Also suggest to add int8 type as signed byte type. |
0CodErr
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| [1551] - posted: 2015-01-30 12:51:53
Currently in documentation
written | “ | pointer 4 0 .. 4294967295 |
Seems it actually platform dependant.
But anyway strange result:
Code:program RAW_IMAGE 'test';
#set bits 16;
pointer p16 = 0x123456789ABCDEF0; p16;
#set bits 32;
pointer p32 = 0x123456789ABCDEF0; p32;
#set bits 64;
pointer p64 = 0x123456789ABCDEF0; p64;
Code:F0 DE 00 00 E0 0C F2 00 F0 DE BC 9A E0 0C F2 00 F0 DE BC 9A 78 56 34 12
I am repeat again that was no warnings about number does not fit in type range(i.e. 0x123456789ABCDEF0 does not fit in 16, 32 bits). |
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OverHertz Studio | [1552] - posted: 2015-01-30 15:23:38
| “ | no warnings about number does not fit in type range |
This is an intended behaviour.
For example:
Code:byte a;
a = 255; // a = 255
a = 256; // a = 0
a = 257; // a = 1
// etc
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| [1553] - posted: 2015-01-30 15:48:14
| “ | This is an intended behaviour. |
I think that may cause some problems.
For example, let define some macro which use byte constants. Also somewhere define constants that used in macro which fits in byte. And forget about this macro. After some time we just change values of our constants to values which at now NOT fits in byte. Macro may work wrong. But no warnings. And we will look up where error too long. |
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OverHertz Studio | [1563] - posted: 2015-01-31 00:27:38
OK, I have changed the default behaviour and added a new directive "imm_roll".
e.g.
Code:byte a;
#set imm_roll true;
a = 257; // a = 1
#set imm_roll false; //the default value
a = 257; // error
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