ASM Community

Im seeking it too. Tell me if you have.

Dion: kalo ada tolong terjemahin yah.:grin:

I hope it was not because Im stupid, I cannot understand. Here is my code

HDReadSector32 proc			; lpBuff,H&d,cyl,sect num,sect count

	

	pop d.[ebp+#16]

	

	pop d.[ebp+#12]			; Sector Count

	pop d.[ebp+#8]			; Sector Number

	pop d.[ebp+#4]			; Cylinder

	pop d.[ebp]				; Head and drive

	pop edi					; Buffer address

	

	push d.[ebp+#16]

	

	mov edx,1f2				; 1f2

	mov al,1				; 

	out						; Sector Count send.

	

	inc dx					; 1f3

	mov eax,[ebp+#8]		; Sector number.

	out

	

	inc dx					; Cylinder

	mov eax,[ebp+#4]

	out

	inc dx

	mov al,ah

	out

	

	inc dx					; 1f6

	mov eax,[ebp]

	out 

	

	inc dx					; 1f7

	mov al,#20

	out

	

hdrs32 data					; label for jump

	in 

	test al,8

	jz hdrs32

	

	mov ecx,512

	mov edx,1f0

	rep insb

	

	ret

HDReadSector32 endp

It failed, it only give me a value -1 al. Any advice?

littlebob1: i hope you are working on an interesting h/w project (s/w one isnt so fun).

CYDONIA, could u tell me where do you got those numbers from?

btw, i googling a while with keyword = programming hard disk controller, and found:

http://www.visopsys.org/osdev/

(check the "Programming the PC's hard disk controller").
as a note, harddisk controller sometimes mentioned in abbreviationed fashion, it is HDC, while FDC for floppy, which is i have some experience programming it directly :)

but, i dont find what the diff in h/w between IDE-SCSI? and where is ATA play its role? (just to make you more curious, littlebob1. dont be rush, take a course on yourself the technique to search the inet, because its not easy to find one :)

realvampire: i dont see any wierd result there, or i am wrong too :P

oh, to mod, i think this thread is better put on OS section.

Do you mean it working? how can it be working ?:confused: