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MSDOS/Virus.MSDOS.Unknown.graflib.asm

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+;
+; grafix --- graflib.asm
+;
+; miscellaneous assembly routines
+;
+; Written 4/87 by Scott Snyder (ssnyder@romeo.caltech.edu or @citromeo.bitnet)
+;
+; Modified 5/29/87 by sss to allow for different memory models
+;
+
+	title	graflib
+
+include	macros.ah
+
+buflen equ 32768
+
+sseg
+endss
+
+dseg
+endds
+
+buf	segment public 'BUF'
+	db buflen dup(?)
+buf	ends
+
+cseg	_graflib
+
+pBegin	g_bufseg
+
+	mov	ax, buf
+	ret
+
+pEnd	g_bufseg
+
+pBegin	g_fmemcpy 
+
+	push	bp
+	mov	bp,sp
+	push	di
+	push	si
+	push	ds
+
+	cld 
+	les	di,[bp+argbase]
+	lds	si,[bp+argbase+4]
+	mov	cx,[bp+argbase+8]
+	shr	cx, 1
+	jnc	c1
+	movsb
+c1:	rep	movsw
+  
+	pop	ds
+	pop	si
+	pop	di
+	mov	sp,bp
+	pop	bp
+	ret
+
+pEnd	g_fmemcpy
+
+pBegin	g_fmemset
+
+	push	bp
+	mov	bp,sp
+	push	di
+	push	si
+
+	cld 
+	les	di,[bp+argbase]
+	mov	al,[bp+argbase+4]
+	mov	ah,al
+	mov	cx,[bp+argbase+6]
+	shr	cx,1
+	jnc	s1
+	stosb
+s1:	rep	stosw
+  
+	pop	si
+	pop	di
+	mov	sp,bp
+	pop	bp
+	ret
+
+pEnd	g_fmemset
+
+	df_	g_fmemcpy
+	df_	g_fmemset
+	df_	g_bufseg
+
+endcs	_graflib 
+ 
+	end