multi precision divide on 32-bit architecture

[Greenbank]

Rogue,

I'm being a bit cheeky in the pow2mod routine. I'm just trying to things hacked together quickly and so I've not been paying much attention to careful register allocation (and reuse).

I was 1 register short in the routine so I stored a temporary loop counter (which I should move over the the ctr register) in the memory used to store the final answer, whilst I called the sqrmod() block and the grabbed it back after the sqrmod.

If you're interested:
http://www.greenbank.org/sob/macasm/asm_mulmod.c
http://www.greenbank.org/sob/macasm/asm_pow2mod.c

I'm not going to apologise for them, I'm learning PPC assembly as I go.

Matt,

Chuck and Joe_O are working on the x86 stuff, I thought I'd have a go at seeing how fast I can get proth_sieve to run on a 32-bit Mac (and eventually a 64-bit Mac).