Update to bsnes v042r02? release.

New WIP. The entire S-CPU opcode core has been re-written to use my
new pre-processor.

The downside is that it's actually slightly slower, by less than 1%.
Guessing that having almost twice the opcode implementations ends up
eating more valuable L1 cache, making it more painful than the two
conditionals per function I had before. But damn if it isn't more
readable now.

Before:
    ror_addrx(0x7e, ror) {
    1:aa.l = op_readpc();
    2:aa.h = op_readpc();
    3:op_io();
    4:rd.l = op_readdbr(aa.w + regs.x.w);
    5:if(!regs.p.m) rd.h = op_readdbr(aa.w + regs.x.w + 1);
    6:op_io();
      if(regs.p.m) { op_$1_b(); }
      else { op_$1_w();
    7:op_writedbr(aa.w + regs.x.w + 1, rd.h); }
    8:last_cycle();
      op_writedbr(aa.w + regs.x.w,     rd.l);
    }


After:
    @macro op_adjust_addrx(name)
      void {class}::op_{name}_addrx_b() {
        aa.l = op_readpc();
        aa.h = op_readpc();
        op_io();
        rd.l = op_readdbr(aa.w + regs.x.w);
        op_io();
        op_{name}_b();
    {lc}op_writedbr(aa.w + regs.x.w, rd.l);
      }

      void {class}::op_{name}_addrx_w() {
        aa.l = op_readpc();
        aa.h = op_readpc();
        op_io();
        rd.l = op_readdbr(aa.w + regs.x.w + 0);
        rd.h = op_readdbr(aa.w + regs.x.w + 1);
        op_io();
        op_{name}_w();
        op_writedbr(aa.w + regs.x.w + 1, rd.h);
    {lc}op_writedbr(aa.w + regs.x.w + 0, rd.l);
      }
    @endmacro

( note: {lc} is short-hand to 'hide' last_cycle(); )

Really worn out now, so don't expect a new WIP for quite a long time
I'm afraid. I'll worry about the S-SMP's core much later. Would
appreciate thorough testing. Given I rewrote all 256 opcodes by hand,
it's possible I made a mistake somewhere.

> Once Alt has been pressed to access the menubar (even just one
> time), the menu accelerator keys become functional even without
> pressing them together with Alt.


Wow ... that is quite alarming. Not sure why Qt is doing that. But
since I don't have a way of fixing it yet ... for now:

> Stop pressing alt.


:/

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This commit is contained in:

byuu

2009-04-06 04:13:00 +00:00

parent 90aa780d57

commit f3d1d10d3e

Update to bsnes v042r02? release.

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