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32x: implement VDP fill, improve PWM, division unit and scheduling

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Chaotix works but unstable


git-svn-id: file:///home/notaz/opt/svn/PicoDrive@794 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2009-09-29 13:38:07 +00:00
parent 87accdf72d
commit be20816c4c
8 changed files with 99 additions and 44 deletions
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20
pico/32x/32x.c
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@ -126,25 +126,28 @@ static __inline void SekRunM68k(int cyc)
// ~1463.8, but due to cache misses and slow mem
// it's much lower than that
#define SH2_LINE_CYCLES 735
//#define SH2_LINE_CYCLES 735
#define CYCLES_M68K2SH2(x) ((x) * 9 / 4)
#define PICO_32X
#define RUN_SH2S_SIMPLE \
#define RUN_SH2S_SIMPLE(m68k_cycles) \
if (!(Pico32x.emu_flags & (P32XF_MSH2POLL|P32XF_MSH2VPOLL))) \
sh2_execute(&msh2, SH2_LINE_CYCLES); \
sh2_execute(&msh2, CYCLES_M68K2SH2(m68k_cycles)); \
if (!(Pico32x.emu_flags & (P32XF_SSH2POLL|P32XF_SSH2VPOLL))) \
sh2_execute(&ssh2, SH2_LINE_CYCLES);
sh2_execute(&ssh2, CYCLES_M68K2SH2(m68k_cycles))
#define RUN_SH2S_LOCKSTEP \
#define STEP 66
#define RUN_SH2S_LOCKSTEP(m68k_cycles) \
{ \
int i; \
for (i = 0; i < SH2_LINE_CYCLES; i+= 3) { \
sh2_execute(&msh2, 3); \
sh2_execute(&ssh2, 3); \
for (i = 0; i < CYCLES_M68K2SH2(m68k_cycles); i+= STEP) { \
sh2_execute(&msh2, STEP); \
sh2_execute(&ssh2, STEP); \
} \
}
#define RUN_SH2S RUN_SH2S_SIMPLE
//#define RUN_SH2S RUN_SH2S_LOCKSTEP
#include "../pico_cmn.c"
@ -160,5 +163,6 @@ void PicoFrame32x(void)
PicoFrameStart();
PicoFrameHints();
elprintf(EL_32X, "poll: %02x", Pico32x.emu_flags);
}