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bsnes/higan/processor/lr35902/registers.cpp

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Update to v103r25 release. byuu says: Changelog: - gb/cpu: force STAT mode to 0 when LCD is disabled (fixes Pokemon Pinball, etc) - gb/ppu: when LCD is disabled, require at least one-frame wait to re-enable, display white during this time - todo: should step by a scanline at a time: worst-case is an extra 99% of a frame to enable again - gba/ppu: cache tilemap lookups and attribute parsing - it's more accurate because the GBA wouldn't read this for every pixel - but unfortunately, this didn't provide any speedup at all ... sigh - ruby/audio/alsa: fixed const issue with free() - ruby/video/cgl: removed `glDisable(GL_ALPHA_TEST)` [deprecated] - ruby/video/cgl: removed `glEnable(GL_TEXTURE_2D)` [unnecessary as we use shaders] - processor/lr35902: started rewrite¹ ¹: so, the Game Boy and Game Boy Color cores will be completely broken for at least the next two or three WIPs. The old LR35902 was complete garbage, written in early 2011. So I'm rewriting it to provide a massive cleanup and consistency with other processor cores, especially the Z80 core. I've got about 85% of the main instructions implemented, and then I have to do the CB instructions. The CB instructions are easier because they're mostly just a small number of opcodes in many small variations, but it'll still be tedious.
2017-08-04 12:53:59 +00:00
#define AF r.af.word
#define BC r.bc.word
#define DE r.de.word
#define HL r.hl.word
#define SP r.sp.word
#define PC r.pc.word
#define A r.af.byte.hi
#define F r.af.byte.lo
#define B r.bc.byte.hi
#define C r.bc.byte.lo
#define D r.de.byte.hi
#define E r.de.byte.lo
#define H r.hl.byte.hi
#define L r.hl.byte.lo
#define CF r.af.byte.lo.bit(4)
#define HF r.af.byte.lo.bit(5)
#define NF r.af.byte.lo.bit(6)
#define ZF r.af.byte.lo.bit(7)