🚀 go-pugleaf

In article <8909062057.AA24180@ucbvax.Berkeley.EDU> aking@BBN.COM (Allen King) writes:
>   1. How do you move files using 1.4? I've read the few pages of
>"notes" but never came across it.

Hold down <CONTROL> when dragging the file.
Beware of beta test versions: some will delete the originaleven after
unsucsessful copy...
>
>   2. How do you set Drive B to 3MS step rate? I've heard there is a new
>call, but with no documentation, ...


Dunno. But the old method still works: set the system variable at 0x440
to the (new) seek rate code and call the routine pointed to by the
vector at 0x46a. This will set both drives to the new seek rate.

Why is the routine called "hdv_init"? It (re-)initialises the floppies
(and does nothing to the harddisk).

3 ms is the default seek rate for both drives. 40 track drive will
probably need 6 od 12 ms.

rate codes are 0 to 3 giving 6, 12, 2 and 3 ms step time.

Setting both drives to 6 ms at power up (AUTO folder) does not harm
system performance: only seeks longer than 2 steps are slowed down a
little.

here is the program, I use in my AUTO folder: (Mark Williams assembler
format; vqh [very quick hack :-)])

/	module name seek6

	.shri

	.globl main_
main_:
	clr.l	-(sp)
	move.w	$0x20,-(sp)
	trap	$1
	addq.l	$6,a7
	move.l	d0,_save_ssp
	move.w	$0,0x440	/ 0 => 6 ms
	lea	0x46a,a0
	move.l	(a0),d0
	movea.l	d0,a0
	jsr	(a0)
	move.l	_save_ssp,-(sp)
	move.w	$0x20,-(sp)
	trap	$1
	addq.l	$6,a7
	.even
_save_ssp:
	.blkl	1

asseble with "cc seek6.s -VGEM" to use the small startup code; this does
not need the enviroment, arguments or the like :-)

hase
-- 
Hartmut Semken, Lupsteiner Weg 67, 1000 Berlin 37 hase@netmbx.UUCP
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