[sdcc-devel]Fixed PCALL and stack adjustment bug

[Klaus H. <kla...@rt...>]

Hi,

tonight I fixed two bugs that I have found with following code snipped:

1:	void (* foo)(int x, int y) reentrant;
2: 
3:	void bar ()
4:	{
5:       		if (foo)
6:                		foo(1,2);
7:	}


1. PCALL-Bug

	The Compiler generated for the PCALL in line 6 a normal CALL
	("lcall" for a mcs51).

2. Stack adjustment bug

	In some cases the Compiler did not generate code to adjust the stack 
	after calls to functions that expect parameters on stack.
	To fix this problem I had to heavily change the argStack (SDCCsymt) and
	parmBytes (SDCCicode) stuff. Now parmBytes is located in the iCode structure.
	I think that is the best location for it because parmBytes is a 
	typical backend stuff.


Regards

Klaus