Hi
I've notice two improvement
1. equation in SSE

# Var Zr located in register mreg0md
# Var Zi located in register mreg1md
# Var Ti located in register mreg3md
# Var Tr located in register mreg2md
# [39] Tr := Zr * Zr;
movsd %xmm0,%xmm4
mulsd %xmm0,%xmm4
movsd %xmm4,%xmm2

it can be changed to:
# [39] Tr := Zr * Zr;
movsd %xmm0,%xmm2
mulsd %xmm0,%xmm2

2. concatenation shortstring and char should not translate char to string, but only test length of string and if can add 1 char at then end.

I've use FPC 2.2

Darek

Yes, but it's not easy to implement ;)

Florian Klaempfl pisze:

I think so, but its worth of effort. That are very popular equation (the same with A=B+C) . And second: can cpu then make own optimalizations (next line use different registers).

my stupid suggest:
after translate of equation test of last line:
movsd %xmmA,%xmmB

if %xmmB is not use before change every %xmmA to %xmmB and remove last line.

but sorry it I don't understand some of it.

Darek