lowlevel.library

BippyM · 08 April 2007, 22:00

can someone point me to some literature for structure offsets for lowlevel.library and other kick 3+ libraries please

rgen · 09 April 2007, 00:05

http://www.haage-partner.de/download...gaOS/NDK39.lha

BippyM · 09 April 2007, 14:23

thanks but i can't seem to find the values for the library offsets.

Maybe I am just blind

rgen · 09 April 2007, 15:45

You have to create them from the supplied sfd or fd files, but unfortunately the lvo tool is not included anymore and sfd tool is not able to read the supplied files.

But you can use http://www.dstoecker.eu/downloads/fd2pragma.lha

fd2pragma include/sfd/lowlevel_lib.sfd 20 (20-23 are valid numbers, whatever you prefer) creates the necessary include file with the library offsets.

BippyM · 09 April 2007, 15:50

ok lemme explain better

I am disassembling a prog for Whitesnake and there is the following code

Code:

move.l  #1,d0
movea.l (LOWLEVBASE).l,a6
jsr     (-$1e,a6)

I need to know what function -$1e is

rgen · 09 April 2007, 16:04

Convert $1e to decimal and then us this

Code:

_LVOReadJoyPort                 EQU     -30
_LVOGetLanguageSelection        EQU     -36
_LVOGetKey                      EQU     -48
_LVOQueryKeys                   EQU     -54
_LVOAddKBInt                    EQU     -60
_LVORemKBInt                    EQU     -66
_LVOSystemControlA              EQU     -72
_LVOAddTimerInt                 EQU     -78
_LVORemTimerInt                 EQU     -84
_LVOStopTimerInt                EQU     -90
_LVOStartTimerInt               EQU     -96
_LVOElapsedTime                 EQU     -102
_LVOAddVBlankInt                EQU     -108
_LVORemVBlankInt                EQU     -114
_LVOSetJoyPortAttrsA            EQU     -132

BippyM · 09 April 2007, 16:46

Thankyou

Where did you find that info? was it thru fd convert?

rgen · 09 April 2007, 17:22

Yes, the sfd file itself contains only the start offset and then you have to increase the offset for each function. This makes the command that I described and I took the offsets from the file it created. You can include it in your assembler and then write

Code:

jsr (_LVOReadJoyPort,a6)

instead of

Code:

jsr (-30,a6)

Doc Mindie · 09 April 2007, 18:08

So.... seeing as -$1e is -30 decimal.... this'll be _LVOReadJoyPort according to your table?

Wow, I get good at assembly now :P

09 April 2007, 15:50	#5
BippyM Global Moderator Join Date: Nov 2001 Location: Derby, UK Age: 48 Posts: 9,355	ok lemme explain better I am disassembling a prog for Whitesnake and there is the following code Code: move.l #1,d0 movea.l (LOWLEVBASE).l,a6 jsr (-$1e,a6) I need to know what function -$1e is

09 April 2007, 17:22	#8
rgen Registered User Join Date: Mar 2002 Location: Aachen/Germany Age: 46 Posts: 190	Yes, the sfd file itself contains only the start offset and then you have to increase the offset for each function. This makes the command that I described and I took the offsets from the file it created. You can include it in your assembler and then write Code: jsr (_LVOReadJoyPort,a6) instead of Code: jsr (-30,a6)

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08 April 2007, 22:00	#1
BippyM Global Moderator Join Date: Nov 2001 Location: Derby, UK Age: 48 Posts: 9,355	lowlevel.library can someone point me to some literature for structure offsets for lowlevel.library and other kick 3+ libraries please

09 April 2007, 00:05	#2
rgen Registered User Join Date: Mar 2002 Location: Aachen/Germany Age: 46 Posts: 190	http://www.haage-partner.de/download...gaOS/NDK39.lha

09 April 2007, 14:23	#3
BippyM Global Moderator Join Date: Nov 2001 Location: Derby, UK Age: 48 Posts: 9,355	thanks but i can't seem to find the values for the library offsets. Maybe I am just blind

09 April 2007, 15:45	#4
rgen Registered User Join Date: Mar 2002 Location: Aachen/Germany Age: 46 Posts: 190	You have to create them from the supplied sfd or fd files, but unfortunately the lvo tool is not included anymore and sfd tool is not able to read the supplied files. But you can use http://www.dstoecker.eu/downloads/fd2pragma.lha fd2pragma include/sfd/lowlevel_lib.sfd 20 (20-23 are valid numbers, whatever you prefer) creates the necessary include file with the library offsets.

09 April 2007, 16:46	#7
BippyM Global Moderator Join Date: Nov 2001 Location: Derby, UK Age: 48 Posts: 9,355	Thankyou Where did you find that info? was it thru fd convert?

09 April 2007, 18:08	#9
Doc Mindie In deep Trouble Join Date: Sep 2004 Location: Manchester, Made in Norway Age: 51 Posts: 841	So.... seeing as -$1e is -30 decimal.... this'll be _LVOReadJoyPort according to your table? Wow, I get good at assembly now :P

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