🚀 go-pugleaf

Hi all,

As you may remember, I once posted a message that told you that the
builtin assembler in TP6 and BP7 allows the use of AAM & AAD with an
operand, ie AAD 16 will result in "D4h 10h" being generated. If you are
willing to sacrifice a little compatibility, and are prepared to always
code AAD 10 & AAM 10, you can use the plain AAD and AAM instructions to
encode two more useful two-byte (non-operand!) instructions, and one
that seems to come to mind to me is RDTSC, (OF 31). To make the patch,
open a backup of your compiler in your favourite hex-editor, search for
AAD/AAM and then for "D4 0A" (if AAM) or "D5 0A" (if AAM) closely
following them and replace these two bytes with your favorite two-byte
Pentium (P2/P3) opcode bytes.

I tested it on TP6, and it works!! (Which is very, very useful!)

********** YOU MUST NOT CHANGE THE ACTUAL MNEMONIC! **********




Of course, if you are prepared to change the entire builtin BASM hash
table, you can actually add RDTSC (and some others) as a valid mnemonic
by throwing out one (or more) of the five virtually obsolete (anyone
still writing code for a 8088/8086/80286?) FPU instructions, F(N)DISI,
F(N)ENI & FSETPM.

Reactions invited...

Robert
--
Robert AH Prins
prinsra@williscorroon.com

PS: Verzeihung fuer die x-post in die Englische Sprache, aber die
Mehrheit der Leser hat wahrscheinlich zufiel Muhe mit Deutsch...


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