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| NNTP-Posting-Date | Sat, 27 Oct 2012 14:33:45 -0500 |
| From | Chris Hinsley <chris.hinsley@gmail.com> |
| Newsgroups | comp.lang.forth |
| Date | Sat, 27 Oct 2012 20:33:45 +0100 |
| Message-ID | <2012102720334580907-chrishinsley@gmailcom> (permalink) |
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| Subject | Re: well formed flag ? |
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> : < ( 2 -- 1 )
> \ ' nseopt compiles; code=$4014DF len=9 type=1
> \ defined in src\kernel\gkernel32.f at line 574
> ( $0 ) sub dword { $0 ebp } eax \ 294500
> ( $3 ) cdq \ 99
> ( $4 ) mov eax edx \ 8BC2
> ( $6 ) add ebp $4 \ 83C504
> ( $9 ) ret \ C3 ( end ) ok
Here your wringting back the result of the subtract to [ebp], which is
not required, wasting memory bandwidth. Why not change it to a 'cmp
[ebp], eax' ?
I like the trick with cdq ! Neat !
Chris
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well formed flag ? Chris Hinsley <chris.hinsley@gmail.com> - 2012-10-27 15:59 +0100
Re: well formed flag ? Chris Hinsley <chris.hinsley@gmail.com> - 2012-10-27 16:03 +0100
Re: well formed flag ? Alex McDonald <blog@rivadpm.com> - 2012-10-27 08:33 -0700
Re: well formed flag ? Alex McDonald <blog@rivadpm.com> - 2012-10-27 09:06 -0700
Re: well formed flag ? Alex McDonald <blog@rivadpm.com> - 2012-10-27 09:26 -0700
Re: well formed flag ? Chris Hinsley <chris.hinsley@gmail.com> - 2012-10-27 20:33 +0100
Re: well formed flag ? Chris Hinsley <chris.hinsley@gmail.com> - 2012-10-27 20:38 +0100
Re: well formed flag ? Alex McDonald <blog@rivadpm.com> - 2012-10-27 12:52 -0700
Re: well formed flag ? Chris Hinsley <chris.hinsley@gmail.com> - 2012-10-27 21:01 +0100
Re: well formed flag ? Coos Haak <chforth@hccnet.nl> - 2012-10-27 22:18 +0200
Re: well formed flag ? "Rod Pemberton" <do_not_have@notemailnotz.cnm> - 2012-10-28 04:19 -0400
Re: well formed flag ? Chris Hinsley <chris.hinsley@gmail.com> - 2012-10-27 17:44 +0100
Re: well formed flag ? "Rod Pemberton" <do_not_have@notemailnotz.cnm> - 2012-10-27 14:52 -0400
Re: well formed flag ? Chris Hinsley <chris.hinsley@gmail.com> - 2012-10-27 20:06 +0100
Re: well formed flag ? Chris Hinsley <chris.hinsley@gmail.com> - 2012-10-27 19:25 +0100
Re: well formed flag ? Chris Hinsley <chris.hinsley@gmail.com> - 2012-10-27 19:33 +0100
Re: well formed flag ? Alex McDonald <blog@rivadpm.com> - 2012-10-27 15:08 -0700
Re: well formed flag ? Chris Hinsley <chris.hinsley@gmail.com> - 2012-10-28 00:53 +0100
Re: well formed flag ? Mark Wills <forthfreak@gmail.com> - 2012-10-27 09:31 -0700
Re: well formed flag ? "A. K." <akk@nospam.org> - 2012-10-27 19:21 +0200
Re: well formed flag ? Mark Wills <forthfreak@gmail.com> - 2012-10-27 10:33 -0700
Re: well formed flag ? Coos Haak <chforth@hccnet.nl> - 2012-10-27 22:21 +0200
Re: well formed flag ? "Ed" <invalid@nospam.com> - 2012-10-28 12:33 +1100
Re: well formed flag ? "Elizabeth D. Rather" <erather@forth.com> - 2012-10-27 15:46 -1000
Re: well formed flag ? "Elizabeth D. Rather" <erather@forth.com> - 2012-10-27 08:54 -1000
Re: well formed flag ? Chris Hinsley <chris.hinsley@gmail.com> - 2012-10-27 20:11 +0100
Re: well formed flag ? "Ed" <invalid@nospam.com> - 2012-10-28 11:05 +1100
Re: well formed flag ? stephenXXX@mpeforth.com (Stephen Pelc) - 2012-10-28 11:53 +0000
Re: well formed flag ? Bernd Paysan <bernd.paysan@gmx.de> - 2012-10-28 14:17 +0100
Re: well formed flag ? mhx@iae.nl (Marcel Hendrix) - 2012-10-28 16:59 +0200
Re: well formed flag ? Bernd Paysan <bernd.paysan@gmx.de> - 2012-10-28 18:37 +0100
Re: well formed flag ? "Ed" <invalid@nospam.com> - 2012-10-29 23:46 +1100
Re: well formed flag ? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-10-29 08:33 -0500
Re: well formed flag ? Paul Rubin <no.email@nospam.invalid> - 2012-10-29 08:25 -0700
Re: well formed flag ? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-10-29 12:27 -0500
Re: well formed flag ? Paul Rubin <no.email@nospam.invalid> - 2012-10-30 08:18 -0700
Re: well formed flag ? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-10-30 10:33 -0500
Re: well formed flag ? Paul Rubin <no.email@nospam.invalid> - 2012-10-30 08:48 -0700
Re: well formed flag ? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-10-30 11:45 -0500
Re: well formed flag ? Bernd Paysan <bernd.paysan@gmx.de> - 2012-10-30 20:10 +0100
Re: well formed flag ? Alex McDonald <blog@rivadpm.com> - 2012-10-30 15:10 -0700
Re: well formed flag ? Paul Rubin <no.email@nospam.invalid> - 2012-10-30 18:28 -0700
Re: well formed flag ? Alex McDonald <blog@rivadpm.com> - 2012-11-02 05:28 -0700
Re: well formed flag ? Paul Rubin <no.email@nospam.invalid> - 2012-11-02 08:13 -0700
Re: well formed flag ? "Elizabeth D. Rather" <erather@forth.com> - 2012-10-30 12:50 -1000
Re: well formed flag ? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-10-31 14:57 +0000
Re: well formed flag ? Bernd Paysan <bernd.paysan@gmx.de> - 2012-10-31 17:58 +0100
Re: well formed flag ? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-10-31 17:39 +0000
Re: well formed flag ? David Thompson <dave.thompson2@verizon.net> - 2012-11-16 23:21 -0500
Aliasing (was: well formed flag ?) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-10-31 14:03 +0000
Re: well formed flag ? "Rod Pemberton" <do_not_have@notemailnotz.cnm> - 2012-10-31 12:06 -0400
Re: well formed flag ? Paul Rubin <no.email@nospam.invalid> - 2012-10-31 09:31 -0700
Aliases (was: well formed flag ?) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-10-31 17:02 +0000
Re: well formed flag ? "Rod Pemberton" <do_not_have@notemailnotz.cnm> - 2012-10-31 20:06 -0400
Re: well formed flag ? "Ed" <invalid@nospam.com> - 2012-10-29 23:47 +1100
Re: well formed flag ? stephenXXX@mpeforth.com (Stephen Pelc) - 2012-10-30 18:02 +0000
Re: well formed flag ? "Ed" <invalid@nospam.com> - 2012-10-31 11:44 +1100
Re: well formed flag ? stephenXXX@mpeforth.com (Stephen Pelc) - 2012-10-31 09:25 +0000
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