32 bit ops in 16 bit real mode TP

Simon Joseph Arbib

Delphi Developer

Wed, 18 Jun 1902 08:00:00 GMT

32 bit ops in 16 bit real mode TP

db $66,$b8,$01,$02,$03,$04 - mov EAX, $04030201
db $f3 - rep
db $66,$ab - STOSD

db $66,$a5 - MOVSD : can be used with rep prefix too ...

Glad to help,

Simon Arbib, in the UK

Mark Iuzzoli

Delphi Developer

Wed, 18 Jun 1902 08:00:00 GMT

In article <4hphc1$...@mimas.brunel.ac.uk>,
Simon Joseph Arbib <cb93...@brunel.ac.uk> wrote:

> db $66,$b8,$01,$02,$03,$04 - mov EAX, $04030201
> db $f3 - rep
> db $66,$ab - STOSD

You can do the following (which is slightly easier to read):

db 66h; mov ax,$5678 ; dw $1234 - mov eax,$12345678. Note the high word first
db 66h; rep movsw - rep movsd

> db $66,$a5 - MOVSD : can be used with rep prefix too ...

db 66h; movsw - movsd

--TCA of NewOrder | iuzzo...@nmia.com | http://www.nmt.edu/~surface
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