Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers...

Newsgroups	comp.lang.forth
Date	2013-04-21 14:47 -0700
References	<eb60b3e1-b203-4589-a1be-e80a161005ea@googlegroups.com> <kkvt6o$sh8$1@speranza.aioe.org> <250171bb-743a-4aa5-a510-825d4a7876e4@googlegroups.com> <kl1127$t3$1@speranza.aioe.org> <dcd1f31b-3a86-4dc3-a62c-0368c697e9d9@c15g2000vbl.googlegroups.com>
Message-ID	<45943e4b-54ef-40f4-94a1-7032a2ef4e9f@googlegroups.com> (permalink)
Subject	Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers...
From	AKE <assadebrahim2000@gmail.com>

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On Sunday, April 21, 2013 5:53:30 PM UTC+1, Alex McDonald wrote:
> 
> For Win32Forth version 4.2 *only* (later versions differ)
> 
> EDI is the base entry address for relocating absolute to relative
> adresses. It should contain 0x40000 at all times.
> 
> ESI is the Forth instruction pointer (it's an ITC).
>
> ESP is the return stack
> 
> EBX is top of stack (TOS)
> 
> EBP is the data stack for anything under TOS.
> 
> EAX, ECX, EDX are free. To release any of the other registers for
> temporary use, PUSH then POP.
> 
> 

Alex --

Thanks for the register matchups W32F v4.2.

Not sure I understand what you mean by "EBP is the data stack for anything under TOS"?

Coos' remarks suggested that EBP may point to the return stack.  Is this what you mean by the above?

(FWIW, I'm using v6.08, so it may be that EDX is restricted by this version.)

- Assad

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Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... AKE <assadebrahim2000@gmail.com> - 2013-04-19 18:21 -0700
  Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... "Rod Pemberton" <do_not_have@notemailnotq.cpm> - 2013-04-21 01:27 -0400
    Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... AKE <assadebrahim2000@gmail.com> - 2013-04-21 04:57 -0700
      Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... "Rod Pemberton" <do_not_have@notemailnotq.cpm> - 2013-04-21 11:39 -0400
        Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... Alex McDonald <blog@rivadpm.com> - 2013-04-21 09:53 -0700
          Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... AKE <assadebrahim2000@gmail.com> - 2013-04-21 14:47 -0700
            Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... Alex McDonald <blog@rivadpm.com> - 2013-04-22 02:17 -0700
  Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... Coos Haak <chforth@hccnet.nl> - 2013-04-21 17:34 +0200
    Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... Coos Haak <chforth@hccnet.nl> - 2013-04-21 17:42 +0200
    Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-04-21 12:37 -0500
      Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... Alex McDonald <blog@rivadpm.com> - 2013-04-21 10:53 -0700
        Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-04-22 03:24 -0500
          Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... Alex McDonald <blog@rivadpm.com> - 2013-04-22 02:49 -0700
          Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... albert@spenarnc.xs4all.nl (Albert van der Horst) - 2013-04-22 10:06 +0000
            Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-04-22 07:35 -0500
              Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... albert@spenarnc.xs4all.nl (Albert van der Horst) - 2013-04-22 13:12 +0000
                Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-04-22 10:01 -0500
              Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... Alex McDonald <blog@rivadpm.com> - 2013-04-22 08:33 -0700
                Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-04-22 11:34 -0500
                Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... Alex McDonald <blog@rivadpm.com> - 2013-04-23 03:27 -0700
        Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... "Rod Pemberton" <do_not_have@notemailnotq.cpm> - 2013-04-23 17:42 -0400
          Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-04-24 03:00 -0500
      Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... AKE <assadebrahim2000@gmail.com> - 2013-04-21 14:43 -0700
        Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... Alex McDonald <blog@rivadpm.com> - 2013-04-22 02:21 -0700
          Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... Alex McDonald <blog@rivadpm.com> - 2013-04-22 08:36 -0700
            Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... Alex McDonald <blog@rivadpm.com> - 2013-04-22 08:39 -0700
              Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... AKE <assadebrahim2000@gmail.com> - 2013-04-22 13:55 -0700
    Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... AKE <assadebrahim2000@gmail.com> - 2013-04-21 14:39 -0700
  Re: Stack Interface between x86 Assembler & Forth -- technique when running out of unprotected registers... albert@spenarnc.xs4all.nl (Albert van der Horst) - 2013-04-21 21:00 +0000

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