Recent posts

#11

Beginner questions / Re: same code pelles c and gcc...

Last post by rweidner - Yesterday at 02:11:00 PM

I didn't know the answer to this question. I asked ChatGPT.

ChatGPT:

Assuming the usual widths on a typical modern desktop/compiler:

unsigned short = 16 bits

unsigned int = 32 bits

stdc_first_leading_one(x) returns the 1-based position of the first 1 when scanning from the most-significant bit (MSB).
stdc_first_leading_zero(x) returns the 1-based position of the first 0 when scanning from the MSB.

For 4, the bit pattern is ...00000100 (only bit 2 set, counting from LSB starting at 0):

First leading one is at position width - 2

First leading zero is at position 1 (because the MSB is 0 for the value 4)

So the output will be:

a1 one:14  a1 zero:1
a2 one:30  a2 zero:1

Explanation:

a1 (16-bit): 16 - 2 = 14

a2 (32-bit): 32 - 2 = 30

If you run this on a platform where unsigned int is not 32-bit (or unsigned short not 16-bit), the one: numbers will change accordingly, but the zero: values will still be 1 for 4 (since the MSB is still 0).

#12

Bug reports / Re: Creating resource with man...

Last post by John Z - Yesterday at 01:04:51 PM

Hi PaoloC13,

Might need a few more details.  Can you zip the project and post it?

I have created a project with a manifest resource without any problem using v13.

John Z

#13

Announcements / Re: Release Candidate #1 for v...

Last post by TimoVJL - March 17, 2026, 11:12:41 PM

https://uops.info/html-instr/MOVBE_R32_M32.html
Long history.

Intel Bonnel 2008 - 2013
Silvermont 2013 -
Airmont 2015 -
AMD Zen+ 2018 -


EDIT: Check_MOVBE2 show Vendor and Brand too.

#14

Announcements / Re: Release Candidate #1 for v...

Last post by Vortex - March 17, 2026, 09:37:26 PM

I think processors dating back to 2012\2013 are supporting the movbe instruction.

#15

Announcements / Re: Release Candidate #1 for v...

Last post by John Z - March 17, 2026, 08:59:06 PM

Tested on Window 7 Pro, DELL 64 bit (still get security updates)

Install seemed ok, however poide would not start even enough to show a window.
Didn't see it running in the background either.
poview worked.

DEL optiplex 780 Intel Core Duo E8400 release date 2008

John Z

Update: Tested on Win 11 Home 24H2 HP, was successful, installed and built vcardz_i program fine.

#16

Announcements / Re: Release Candidate #1 for v...

Last post by TimoVJL - March 17, 2026, 12:37:16 PM

Hopefully users test new version and don't wait release version.
I try to test Windows 7 with new version, but every PC's CPUs are problem.
Windows 10 and 11 test PCs should not having any problems.
Pelles C support testing other versions with -x -xml poide commandline options.

#17

General discussion / Re: Compiling using pomake

Last post by John Z - March 17, 2026, 09:50:31 AM

Yes, main.c is in a different directory. I have a reason for it. It is just not a great reason. LOL.

Got it - a 'works for me situation'  Hierarchical and more structured.

Thanks,
John Z

#18

Bug reports / Creating resource with manifes...

Last post by PaoloC13 - March 17, 2026, 12:07:33 AM

Start a new project >
 Win64 Program (EXE) | Name: Test >
  Open >
   Filename: main.c >
    Add file to project >
     Filename: main.c >
      Open >
       Build >

[Ouput]
Project build started
Project build ended successfully

File >
 New >
  Resources (Untitled) >
   New >
    Manifest >
     Save >
      Filename: resources >
       Save >

"Do you want to add the file 'resource.rc' to the current project?" >
 Yes

[Ouput]
Document saved: C:\Documents\Test\resources.rc

Build >
 ...Freezed with spinning wheel

Version: 13.00.9
Windows 11

#19

Assembly discussions / Re: Verifying the support of t...

Last post by Vortex - March 16, 2026, 09:27:38 PM

Here is the 64-bit version :

Code Select Expand

include     movbeCheck.inc

.data

m1          db 'The processor does not support the instruction movbe.',0
m2          db 'The processor supports the instruction movbe.',0
StrTable    dq OFFSET m1,OFFSET m2

.code

start:

    sub     rsp,8+4*8
    call    main
    invoke  ExitProcess,0

main PROC PARMAREA=4*SIZEOF QWORD

LOCAL _rax:QWORD

    xor     rax,rax
    mov     _rax,rax
   
    mov     rax,1
    cpuid

    bt      rcx,22
    mov     rax,_rax
    adc     rax,0

    mov     rdx,OFFSET StrTable
    lea     rcx,[rdx+8*rax]

    invoke  printf,QWORD PTR [rcx]
    ret   

main ENDP

END start


#20

Assembly discussions / Verifying the support of the i...

Last post by Vortex - March 16, 2026, 08:45:29 PM

Hello,

To check if your processor supports the instruction movbe :

Code Select Expand

include     movbeCheck.inc

.data

m1          db 'The processor does not support the instruction movbe.',0
m2          db 'The processor supports the instruction movbe.',0
StrTable    dd OFFSET m1,OFFSET m2

.code

start:

    call    main
    invoke  ExitProcess,0

main PROC

    xor     eax,eax
    push    eax
   
    mov     eax,1
    cpuid

    bt      ecx,22
    pop     eax
    adc     eax,0

    mov     edx,OFFSET StrTable
    lea     ecx,[edx+4*eax]

    invoke  printf,DWORD PTR [ecx]
    ret   

main ENDP

END start