Author	SHA1	Message	Date
SarahW	7e099c277e	Added basic loop unrolling. Blocks that end in a JMP, LOOP or conditional branch to a previous instruction in the block will be unrolled up to 10 times.	2019-03-25 19:07:51 +00:00
SarahW	ab124776a0	Rework self modifying code handling. ... Code blocks now have a varying level of granularity in the page and dirty masks. Most blocks have 64-byte granularity, but blocks that are repeatedly modified drop to 1-byte granularity. This reduces the maximum size of the affected block significantly, but reduces recompilation due to data located too close to code. If the block is still marked as dirty, then it is recompiled without any immediate instruction parameters being baked into the recompiled code, instead being fetched from the RAM array as needed. This severely reduces recompilation rates on some SMC-heavy games, eg Duke Nukem 3D, System Shock, Screamer etc, giving a major speedup.	2019-03-16 14:53:26 +00:00