don't crash on bad timing

[picodrive.git] / pico / pico.h

diff --git a/pico/pico.h b/pico/pico.h
index 6c6e7c5..b5d34f3 100644 (file)
--- a/pico/pico.h
+++ b/pico/pico.h
@@ -37,6 +37,7 @@ extern void cache_flush_d_inval_i(void *start_addr, void *end_addr);
 extern void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed);\r
 extern void *plat_mremap(void *ptr, size_t oldsize, size_t newsize);\r
 extern void  plat_munmap(void *ptr, size_t size);\r
+extern int   plat_mem_set_exec(void *ptr, size_t size);\r
 \r
 // this one should handle display mode changes\r
 extern void emu_video_mode_change(int start_line, int line_count, int is_32cols);\r
@@ -211,12 +212,14 @@ extern unsigned short *PicoCramHigh; // pointer to CRAM buff (0x40 shorts), conv
 extern void (*PicoPrepareCram)();    // prepares PicoCramHigh for renderer to use\r
 \r
 // pico.c (32x)\r
-// multipliers against 68k clock\r
+// multipliers against 68k clock (7670442)\r
+// normally * 3, but effectively slower due to high latencies everywhere\r
+// however using something lower breaks MK2 animations\r
 extern int p32x_msh2_multiplier;\r
 extern int p32x_ssh2_multiplier;\r
 #define SH2_MULTI_SHIFT 10\r
-#define MSH2_MULTI_DEFAULT ((1 << SH2_MULTI_SHIFT) * 21 / 10)\r
-#define SSH2_MULTI_DEFAULT ((1 << SH2_MULTI_SHIFT) * 3 / 2)\r
+#define MSH2_MULTI_DEFAULT ((1 << SH2_MULTI_SHIFT) * 3)\r
+#define SSH2_MULTI_DEFAULT ((1 << SH2_MULTI_SHIFT) * 3)\r
 \r
 // 32x/draw.c\r
 void PicoDraw32xSetFrameMode(int is_on, int only_32x);\r