32x: memhandler improvements

[picodrive.git] / cpu / sh2 / sh2.h

diff --git a/cpu/sh2/sh2.h b/cpu/sh2/sh2.h
index 92774d0..d0b7377 100644 (file)
--- a/cpu/sh2/sh2.h
+++ b/cpu/sh2/sh2.h
@@ -39,6 +39,15 @@ typedef struct SH2_
        void            *p_rom;\r
        unsigned int    pdb_io_csum[2];\r
 \r
+#define SH2_STATE_RUN   (1 << 0)       // to prevent recursion\r
+#define SH2_STATE_SLEEP (1 << 1)\r
+#define SH2_STATE_CPOLL (1 << 2)       // polling comm regs\r
+#define SH2_STATE_VPOLL (1 << 3)       // polling VDP\r
+       unsigned int    state;\r
+       unsigned int    poll_addr;\r
+       int             poll_cycles;\r
+       int             poll_cnt;\r
+\r
        // interpreter stuff\r
        int             icount;         // cycles left in current timeslice\r
        unsigned int    ea;\r
@@ -54,10 +63,15 @@ typedef struct SH2_
 \r
        unsigned int    cycles_timeslice;\r
 \r
+       struct SH2_     *other_sh2;\r
+\r
        // we use 68k reference cycles for easier sync\r
        unsigned int    m68krcycles_done;\r
        unsigned int    mult_m68k_to_sh2;\r
        unsigned int    mult_sh2_to_m68k;\r
+\r
+       unsigned char   data_array[0x1000]; // cache (can be used as RAM)\r
+       unsigned int    peri_regs[0x200/4]; // periphereal regs\r
 } SH2;\r
 \r
 #define CYCLE_MULT_SHIFT 10\r
@@ -66,7 +80,7 @@ typedef struct SH2_
 #define C_SH2_TO_M68K(xsh2, c) \\r
        ((int)((c + 3) * (xsh2).mult_sh2_to_m68k) >> CYCLE_MULT_SHIFT)\r
 \r
-int  sh2_init(SH2 *sh2, int is_slave);\r
+int  sh2_init(SH2 *sh2, int is_slave, SH2 *other_sh2);\r
 void sh2_finish(SH2 *sh2);\r
 void sh2_reset(SH2 *sh2);\r
 int  sh2_irl_irq(SH2 *sh2, int level, int nested_call);\r
@@ -85,9 +99,9 @@ int  sh2_execute(SH2 *sh2, int cycles);
 unsigned int REGPARM(2) p32x_sh2_read8(unsigned int a, SH2 *sh2);\r
 unsigned int REGPARM(2) p32x_sh2_read16(unsigned int a, SH2 *sh2);\r
 unsigned int REGPARM(2) p32x_sh2_read32(unsigned int a, SH2 *sh2);\r
-int REGPARM(3) p32x_sh2_write8 (unsigned int a, unsigned int d, SH2 *sh2);\r
-int REGPARM(3) p32x_sh2_write16(unsigned int a, unsigned int d, SH2 *sh2);\r
-int REGPARM(3) p32x_sh2_write32(unsigned int a, unsigned int d, SH2 *sh2);\r
+void REGPARM(3) p32x_sh2_write8 (unsigned int a, unsigned int d, SH2 *sh2);\r
+void REGPARM(3) p32x_sh2_write16(unsigned int a, unsigned int d, SH2 *sh2);\r
+void REGPARM(3) p32x_sh2_write32(unsigned int a, unsigned int d, SH2 *sh2);\r
 \r
 // debug\r
 #ifdef DRC_CMP\r