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NEW.ASM
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Assembly Source File
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1996-08-26
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1KB
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70 lines
; NEW.ASM for E32 - Copyright (C) 1994 Douglas Herr
; all rights reserved
; clears the current file from the buffer
include model.inc
public new
extrn yesno_message:near
extrn top:near
extrn mark:near
include dataseg.inc
extrn warning:byte ; color attribute for warning messages
extrn dirty_bits:byte ; status flags
extrn verify_msg:byte
extrn filesel:word
extrn filesiz:dword ; file size
extrn buffersiz:dword ; bytes available in file buffer
extrn filename:dword ; ptr to filename
extrn mark_mode:byte
extrn push_mode:byte
extrn file_row:dword
extrn display_mode:byte
@curseg ends
include codeseg.inc
new proc near
test dirty_bits,10000000b
; has the file has been changed?
jz short no_prompt
or dirty_bits,00010000b ; update FKey display
mov ah,warning
mov esi,offset verify_msg
call yesno_message
cmp al,'N'
je short exit
no_prompt:
xor eax,eax
mov display_mode,al
mov push_mode,al
mov ebx,filename ; get ptr to filename
mov [ebx],al
mov filesiz,eax
and dirty_bits,00111111b
cmp mark_mode,al
je short mark_off
call mark
mark_off:
mov file_row,1
or dirty_bits,00100000b ; flag top line refresh
; re-size file buffer
mov ecx,1024
mov buffersiz,ecx
mov bx,filesel
sys ResMem32
call top
mov al,'Y'
exit:
clc
ret
new endp
@curseg ends
end