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83f684c66c
byuu says: Note: for Windows users, please go to nall/intrinsics.hpp line 60 and correct the typo from "DISPLAY_WINDOW" to "DISPLAY_WINDOWS" before compiling, otherwise things won't work at all. This will be a really major WIP for the core SNES emulation, so please test as thoroughly as possible. I rewrote the 65816 CPU core's dispatcher from a jump table to a switch table. This was so that I could pass class variables as parameters to opcodes without crazy theatrics. With that, I killed the regs.r[N] stuff, the flag_t operator|=, &=, ^= stuff, and all of the template versions of opcodes. I also removed some stupid pointless flag tests in xcn and pflag that would always be true. I sure hope that AWJ is happy with this; because this change was so that my flag assignments and branch tests won't need to build regs.P into a full 8-bit variable anymore. It does of course incur a slight performance hit when you pass in variables by-value to functions, but it should help with binary size (and thus cache) by reducing a lot of extra functions. (I know I could have used template parameters for some things even with a switch table, but chose not to for the aforementioned reasons.) Overall, it's about a ~1% speedup from the previous build. The CPU core instructions were never a bottleneck, but I did want to fix the P flag building stuff because that really was a dumb mistake v_v'
52 lines
913 B
C
52 lines
913 B
C
/*
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libco.win (2008-01-28)
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authors: Nach, byuu
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license: public domain
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*/
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#define LIBCO_C
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#include "libco.h"
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#define WINVER 0x0400
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#define _WIN32_WINNT 0x0400
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#include <windows.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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static thread_local cothread_t co_active_ = 0;
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static void __stdcall co_thunk(void *coentry) {
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((void (*)(void))coentry)();
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}
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cothread_t co_active() {
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if(!co_active_) {
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ConvertThreadToFiber(0);
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co_active_ = GetCurrentFiber();
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}
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return co_active_;
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}
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cothread_t co_create(unsigned int heapsize, void (*coentry)(void)) {
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if(!co_active_) {
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ConvertThreadToFiber(0);
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co_active_ = GetCurrentFiber();
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}
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return (cothread_t)CreateFiber(heapsize, co_thunk, (void*)coentry);
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}
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void co_delete(cothread_t cothread) {
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DeleteFiber(cothread);
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}
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void co_switch(cothread_t cothread) {
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co_active_ = cothread;
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SwitchToFiber(cothread);
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}
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#ifdef __cplusplus
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}
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#endif
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