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bsnes/nall/arithmetic.hpp

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Update to v101r19 release. byuu says: Changelog: - added \~130 new PAL games to icarus (courtesy of Smarthuman and aquaman) - added all three Korean-localized games to icarus - sfc: removed SuperDisc emulation (it was going nowhere) - sfc: fixed MSU1 regression where the play/repeat flags were not being cleared on track select - nall: cryptography support added; will be used to sign future databases (validation will always be optional) - minor shims to fix compilation issues due to nall changes The real magic is that we now have 25-30% of the PAL SNES library in icarus! Signing will be tricky. Obviously if I put the public key inside the higan archive, then all anyone has to do is change that public key for their own releases. And if you download from my site (which is now over HTTPS), then you don't need the signing to verify integrity. I may just put the public key on my site on my site and leave it at that, we'll see.
2016-10-27 21:16:58 +00:00
#pragma once
//multi-precision arithmetic
//warning: each size is quadratically more expensive than the size before it!
#include <nall/stdint.hpp>
#include <nall/string.hpp>
#include <nall/range.hpp>
#include <nall/traits.hpp>
#include <nall/arithmetic/unsigned.hpp>
#if !defined(__SIZEOF_INT128__)
#define PairBits 128
#define TypeBits 64
#define HalfBits 32
#include <nall/arithmetic/natural.hpp>
#undef PairBits
#undef TypeBits
#undef HalfBits
#endif
#define PairBits 256
#define TypeBits 128
#define HalfBits 64
#include <nall/arithmetic/natural.hpp>
#undef PairBits
#undef TypeBits
#undef HalfBits
#define PairBits 512
#define TypeBits 256
#define HalfBits 128
#include <nall/arithmetic/natural.hpp>
#undef PairBits
#undef TypeBits
#undef HalfBits
#define PairBits 1024
#define TypeBits 512
#define HalfBits 256
#include <nall/arithmetic/natural.hpp>
#undef PairBits
#undef TypeBits
#undef HalfBits
#define PairBits 2048
#define TypeBits 1024
#define HalfBits 512
#include <nall/arithmetic/natural.hpp>
#undef PairBits
#undef TypeBits
#undef HalfBits
#define PairBits 4096
#define TypeBits 2048
#define HalfBits 1024
#include <nall/arithmetic/natural.hpp>
#undef PairBits
#undef TypeBits
#undef HalfBits
#define PairBits 8192
#define TypeBits 4096
#define HalfBits 2048
#include <nall/arithmetic/natural.hpp>
#undef PairBits
#undef TypeBits
#undef HalfBits
Update to v106r60 release. byuu says: I added (imperfect) memory conflict timing to the SA1. Before: - WRAM↔↔ROM ran 7% too fast - ROM↔↔ROM ran 100% too fast - WRAM↔↔IRAM ran 7% too fast - ROM↔↔IRAM ran 7% too fast - IRAM↔↔IRAM ran 287% too fast - BWRAM↔↔BWRAM ran 100% too fast - HDMA ROM↔↔ROM ran 15% too fast - HDMA WRAM↔↔ROM ran 15% too fast - DMA ROM↔↔ROM ran 100% too fast After: - ROM↔↔ROM runs 14% too fast - HDMA WRAM↔↔ROM runs 7% too fast - DMA ROM↔↔ROM runs 4% too fast If you enable this with the fast PPU + DSP, your framerate in SA1 games will drop by 51%. And even if you disable it, you'll still lose 9% speed in SA1 games, and 2% speed in non-SA1 games, because of changes needed to make this support possible. By default, I'm leaving this off. Compile with `-DACCURATE_SA1` (or uncomment the line in sfc/sfc.hpp) if you want to try it out. This'll almost certainly cause some SA1 regressions, so I guess we'll tackle those as they arise.
2018-09-02 14:06:41 +00:00
namespace nall {
//TODO: these types are for expressing smaller bit ranges in class interfaces
//for instance, XChaCha20 taking a 192-bit nonce
//however, they still allow more bits than expressed ...
//some sort of wrapper needs to be devised to ensure these sizes are masked and wrap appropriately
using uint192_t = uint256_t;
}