In SX Microcontrollers, SX/B Compiler and SX-Key Tool, rwsenser wrote:

Greetings. If you are interested in running C on the SX chips, the attached sample C program might be of interest to you.

 

Attached is a sample C program, called prime48.c, that counts the number of prime numbers between

2 and 100, and prints out the answer (which is 25).

 

What is interesting is that this exact same program, unmodified, also works under the Windows VC6 C compiler.  The Windows exe file is included in the attached zip.  Note that, with the SX48,  th results are output with the I/O functions in the C4SX sxio.h library.  This SX prgm can also be run on the  SX48 without serial support (let the debugger stop at the break point....).

 

This program is a bit of nonsense as who would want to compute/find primes on a microcontroller??  But, it also makes a small point:  What other language can be used to write programs that can be tested under Windows and, unmodified, run on the SX?   /* in other words, this is a very shameless plug for using C .... */   

 

On a serious note, this all works by using C #ifdef .... #endif sequences to keep the SX and Windows-specific code seperated.  In other words, the code is ported to both the SX and Windows platforms.

 

RW Senser

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