; BOTTOM.ASM for E32 - Copyright (C) 1994 Douglas Herr
;  all rights reserved

;
; this moves the cursor to the bottom of the file
;

include	model.inc

public	bottom
extrn	locate:near
;extrn	home:near
extrn	rowcount:near

include	dataseg.inc
extrn	filesiz:dword		; file size
extrn	dirty_bits:byte
extrn	left_margin:word
extrn	rows:byte
extrn	cursor:dword
extrn	count_rows:byte, saved_pos:word
extrn	count_start:dword
extrn	count_bytes:dword
extrn	display_mode:byte

@curseg	ends

include	codeseg.inc
bottom	proc	near

	push	ds
	pop	es
; update count_start
	mov	eax,cursor
	mov	count_start,eax
	mov	left_margin,0	; set window to start of line

	mov	esi,filesiz
	mov	dh,rows
	or	dirty_bits,1	; redraw screen
	call	locate
	mov	al,display_mode
	test	al,al
	jnz	exit		; done if hex display mode

	mov	saved_pos,-1
	mov	eax,cursor
	sub	eax,count_start
	mov	count_bytes,eax
	call	rowcount
exit:
	ret
bottom	endp

@curseg	ends
	end