I'll consider whether or not to purchase the Keil compiler. I do like the IDE very much.

Please, these off topic comments are not helpful!

I would love to have put the eval. version through a series of test programs for the purpose of "getting the feel" of it's nuances.

Even the following compiles, simulates, but won't run:

/*------------------------------------
| Port8_9.c
| Port 1 output test
======================================
| Turn output pins high then low on P1
| with to enable viewing LEDs
| as indicators and provide o-scope
| pattern.
|-------------------------------------
| 8/9/04 Marty McLeod
| Compiled in Keil v7 uVision2 IDE
| Output: Port8_9.HEX
--------------------------------------*/

#include <reg51u2.h>

/* Begin main */
void main(void)
{

        SP = 0x40;      //Set stack pointer location

	P1 = 0x00;	//Port 1 is OUTPUT

  while(1)
   {
	P1 = 0xff;
	P1 = 0x00;
   }

}//main()

/** END OF FILE **/