Remove libco

This removes libco and all the usages of it (+pthreads).
Rewired all dynarecs and interpreter to return after every frame so that
libretro can process events. This required to make dynarec re-entrant.

Dynarecs were updated to check for new frame on every update (IRQ, cycle
exhaustion, I/O write, etc). The performance impact of doing so should
be minimal (and definitely outweight the libco gains). While at it,
fixed small issues to get a bit more perf: arm dynarec was not idling
correctly, mips was using stack when not needed, etc.

Tested on PSP (mips), OGA (armv7), Linux (x86 and interpreter). Not
tested on Android though.

1 files changed, 0 insertions, 2 deletions

diff --git a/common.h b/common.h
index a85bc57..f7c3624 100644
--- a/common.h
+++ b/common.h
@@ -135,8 +135,6 @@
 #define GBA_SCREEN_HEIGHT (160)
 #define GBA_SCREEN_PITCH  (240)
 
-void switch_to_main_thread(void);
-
 // These must be variables, not constants.
 
 #define file_read_variable(filename_tag, variable)                            \