Xref:	news2.mv.net comp.os.msdos.djgpp:6749
From:	dbarrett AT srvr1 DOT engin DOT umich DOT edu (David M Barrett)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Inline ASM :'Error : ect. ect."
Date:	31 Jul 1996 15:43:21 GMT
Organization:	University of Michigan Engineering, Ann Arbor
Lines:	50
Message-ID:	<4tnuup$mv0@srvr1.engin.umich.edu>
References:	<s9404619 DOT 10 DOT 02B06262 AT student DOT utwente DOT nl>
NNTP-Posting-Host:	celtics.engin.umich.edu
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Edison (s9404619 AT student DOT utwente DOT nl) wrote:
: Ok... Here goes... I don't know exactly what is wrong... so I can only give 
: you some 'solutions'

: void VGA_Mode_13h_Normal_Blit_Video_Buffer(Video_Buffer *In_Buf,
:                                            U16 X, U16 Y){
: U8 *Data_Ptr;
: U16 A,B;

:         ASM("                                   \n
:                 pushw %%es                      \n 
:                 movw _our_global_selector, %%es \n 
: --------------> movw %%es, %%ds                 \n 
:                 movl $0xA0000, %%edi            \n 
:                 imulw $320, %%ax                \n  (shifts would be faster)
:                 addw %%bx, %%ax                 \n 
: --------------> addw %%ax, %%edi                \n 
:               next_line:                      \n (Is that label legal ???)
:                         pushw   %%cx            \n 
:                         movw    %%dx, %%cx      \n 
:                         rep                     \n   
:                         movsb                   \n 
:                         pop %%cx                \n  (popw ????)
:                         addw $320, %%edi        \n 
:                         loop next_lineb         \n 
:                 popw %%es                       \n 
:             "
:             :
:             : "a" (Y),
:               "b" (X),
:               "c" (In_Buf->Dimensions.Y),
:               "d" (In_Buf->Dimensions.X),
:               "S" (In_Buf->Data));
: }              


Thanks Edison, I'll give that a shot.  Oh, and I just realized while reading
over my previous post: I have ASM defined to be __asm__ __volatile__ in case
you were wondering.

Thanks!

-David :)


--
-----------------------------------------------------------------------------
 David M. Barrett :)         |     University of Michigan / CAEN Hotline
 dbarrett AT engin DOT umich DOT edu    | http://www-personal.engin.umich.edu/~dbarrett
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