fys wrote:

> > INT = call

> 

> INT is similar to CALL but not exactly.  INT pushs CS, IP, and FLAGS

> on to the stack before it jumps to the location pointed to by the IVT item.

> Then at the end of that code, there should be a IRET which will pop these

> off and continue on from the next instruction after the INT.



I come from the BASIC domains, so I called INT a call not a CALL. Good

to know there is a CALL anyway.



> At the end of the routine you CALL, there should be an appropriate

> sized RET.



Ok.



Is there anything like that to use in the sense of:



.code



Main:		JMP CLSProc	; hop to the CLS procedure

				; Point A



.exit



CLSProc:	MOV ax, 0003h	: A CLS I think

		INT 10h		;

		RET		; What to put here to return to point A? JRET?

				; Point B



> Jcc can only jmp +/-128, though starting  the 386+, you could Jcc

> +/-32768.

> (Jcc is Jump on Condition.  jz, jnz, jc, jnc, etc.)



Aha. Now:

- JCC = Jump on condition (what is the syntax?)

- JZ = Jump on ??

- JNZ = Jump on not ??

- JC = Jump on ??

- JNC = Jump on not ??

- RET = Return from CALL (when? where to?)

- IRET = Return from INT (when can I use it?)

- LOOP = loop back to a point (to what point? what is the syntax?)

- MOV ax,?? = move a unit of data from DB to ax (how?)



If there is an online document containing all this, please give me the

link and I'll stop bothering you. ;]



> > DB = set data

> 

>   db  12h,34h,56h,78h

>   db  'This is a string',0



Ok. Is



	db 'hello world'



same to



	db 'h','e','l','l','o',' ','w','o','r','l','d'



?



> > XOR, OR = something to do with conditions

> 

> XOR, OR, and AND are bitwize "conditions".

> 

> XOR  1,0 = 1

> XOR  1,1 = 0

> XOR  0,0 = 0



Ok. If I use:



	XOR ax,bx



Are ax and bx the input bits and where is the output?



Also, is there a NOT?



> > This is in NBASM, can somebody tell me what these really and what the

> > others mean? Is there an online document about it (simmilar to the

> > interrupt list above)?

> 

> In that same interrupt list, you should have received...oh what is the

> name of that file...  Anyway, there is a file with most if not all the

> instructions for numerous processors.



I have sweeped trough the files and didn't find it, maybe we're not

speaking of the same thing here. I was thinking of a list that has XOR,

JMPS, JCC, etc in it with the explanations you are currently giving me.



Or maybe I have not downloaded everything. I will check the page.



			Observer aka DustWolf aka CyberLegend aka Jure Sah



C'ya!



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