TKermitFTP

[Tom Jennings]

On Wed, 5 Jan 2005, John Foust wrote:

> And in your code, we'd need to know COMPORT, RDA, DATAPORT
> and theexactsizeofKERMIT.  Not remembering enough low-level DOS
> myself, are the first three constants or something from a
> BIOS call?


theexactsizeofKERMIT is simply derived from the DIR command.  The
only catch is if dir says kermit.com = 67000 bytes, and you send
only 66999, then the kludge will wait for 67000 bytes... for ever.
The solution is easy: copy/b some short crap file to the port.



IBM feces comm. port data is trivial RTFM. All from
http://wps.com/FidoNet/source/DOS-C-sources/Old%20DOS%20C%20library%20source/ibmasync.asm

DATAPORT= base + MDATA		; You're not paying me enough
STATPORT= base + MSTAT		; to do arithmetic.

and RDA is... RDA.




;
; 8250 hardware configuration
;
base	dw	3f8h		; COM1 base port
intnum	db	12		; COM1 interrupt
intmsk	db	11101111b	;

MDATA	equ	0		; modem data port 
MLINE	equ	3		; line control 
MLSTAT	equ	5		; line status 
MCNTRL	equ	4		; modem control 
MSTAT	equ	6		; modem status 
MBAUDL	equ	0		; baud rate low 
MBAUDH	equ	1		; baud rate high 
INTENB	equ	1		; interrupt enable register
INTID	equ	2		; interrupt ID
FIFO	equ	2		; 16550 FIFO control


DLAB	equ	80h		; baud reg. access bit 
RDA	equ	01h		; character avail 
TBE	equ	20h		; buffer empty 
MODE	equ	03h		; 8 bits, no parity 
MMODE	equ	00001000b	; enable interrupt
RTS	equ	2		; RTS bit
DTR	equ	1		; DTR bit,
CTS	equ	10h		; CTS bit,
B300	equ	0180h		; 300 baud 
B1200	equ	0060h		; 1200 baud 
B9600	equ	000ch		; 9600 baud




>> I am surprised that no one pointed out that the input, store, incremnt
>> could more easily be done by:
>
> Who was the one talking about overkill and excessive optimization?  :-)

Me? Never!