karols / millfork-benchmarks Goto Github PK

It seems that CC65 was tested in a very unoptimal way (no static local optimization).
CC65 both C standard constructs (register) and pragmas to use zero page.

I have played with the sieve in CC65 in:
https://github.com/Fabrizio-Caruso/Sieve

Try this for 6502 / romsum.c in CC65, should be MUCH faster:

#include "benchcommon.h"
#include <conio.h>
#include <stdlib.h>

const unsigned char* const rom = (const unsigned char*)0xe000;

unsigned int sum(void) {
    register unsigned int s;
    register const unsigned char* p;
    s = 0;
    for (p = rom; p != 0; ++p)
    {
         s += *p;
    };
    return s;
}

int main (void)
{
    static unsigned char buffer[20];
    unsigned char i;
    start();
    for(i=0;i<6;i++) {
        utoa(sum(), buffer, 10);
	putchar(0x9b);
        cputs(buffer);
    }
    end();

    asm(" jmp *");

    return EXIT_SUCCESS;
}

Similarly, for SIEVE benchmark you can try this attachment - https://atariage.com/forums/topic/240919-mad-pascal/?do=findComment&comment=4434580

Hello,
I've just released prog8 6.4
It contains once again various code generation improvements. (mostly added in 6.1)
Most notably, the plasma benchmark now runs faster than the optimized cc65 one.
Also i've added the linkedlist benchmark that was missing until now.

It would be awesome, if you could update the graphs with the new results?
(it does first require some slight changes in the prog8 benchmark programs because of the changes to the language and libraries. The pull request for that is linked below.)

I've now pretty much exhausted the possibilities of easy to moderately complex code generation optimizations in Prog8. Further improvements will require quite a lot of work, I think, something I don't have the time for any time soon.

The reason your KickC plasma does not display anything is that the rand_seed is zero when calling makechar().

If you add the following before makechar() it displays the plasma frame correctly

`rand_seed = 6474;`