About 'fbld'

flat assembler
Message board for the users of flat assembler.

Index > Compiler Internals > About 'fbld'

Author

Thread

BiDark

Joined: 22 Jun 2003
Posts: 109
Location: .th

BiDark 06 May 2004, 11:40

Hello Tomasz,

I can't do 80 bits decimal

Code:

  fbld  [here]

here dt 4

error: 'invalid value'

fbld need m80 bits decimal (currently accepts only floating point?).

06 May 2004, 11:40

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8466
Location: Kraków, Poland

Tomasz Grysztar 06 May 2004, 11:54

Yes, only floating point is allowed for "dt" (see docs), fasm integer expression calculator works on 64-bit values. You have to compose such value from smaller pieces, something like:

Code:

label here tword
dq 1234567876543210h
dw 0000h ; four highest decimal digits

Also some nice macro would be done...

06 May 2004, 11:54

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8466
Location: Kraków, Poland

Tomasz Grysztar 06 May 2004, 12:04

Here's a sample macro:

Code:

macro BCD name,value
{
  label name tword
  virtual at 0
   times 20 db '0'
   db `value
   qval = 0
   wval = 0
   repeat 16
    load a byte from $-%
    qval = qval + (a-'0') shl ((%-1)*4)
   end repeat
   repeat 4
    load a byte from $-16-%
    wval = wval + (a-'0') shl ((%-1)*4)
   end repeat
  end virtual
  dq qval
  dw wval
}

BCD here,12345678999999977773

06 May 2004, 12:04

BiDark

Joined: 22 Jun 2003
Posts: 109
Location: .th

BiDark 06 May 2004, 12:15

Really wish an 'build-in' support (Masm has dt and real10 for this).
You'r really fast. Thanks!

06 May 2004, 12:15

< Last Thread | Next Thread >

Forum Rules:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum