//
// MEMORY.H: Header file
//
+// All Jaguar related memory and I/O locations are contained in this file
+//
#ifndef __MEMORY_H__
#define __MEMORY_H__
-//This module needs some serious cleanup. !!! FIX !!!
-#include <stdio.h> // For FILE struct
-#include "types.h"
+#include <stdint.h>
+
+extern uint8_t jagMemSpace[];
+
+extern uint8_t * jaguarMainRAM;
+extern uint8_t * jaguarMainROM;
+extern uint8_t * gpuRAM;
+extern uint8_t * dspRAM;
+
+#if 1
+extern uint32_t & butch, & dscntrl;
+extern uint16_t & ds_data;
+extern uint32_t & i2cntrl, & sbcntrl, & subdata, & subdatb, & sb_time, & fifo_data, & i2sdat2, & unknown;
+#else
+extern uint32_t butch, dscntrl, ds_data, i2cntrl, sbcntrl, subdata, subdatb, sb_time, fifo_data, i2sdat2, unknown;
+#endif
+
+extern uint16_t & memcon1, & memcon2, & hc, & vc, & lph, & lpv;
+extern uint64_t & obData;
+extern uint32_t & olp;
+extern uint16_t & obf, & vmode, & bord1, & bord2, & hp, & hbb, & hbe, & hs,
+ & hvs, & hdb1, & hdb2, & hde, & vp, & vbb, & vbe, & vs, & vdb, & vde,
+ & veb, & vee, & vi, & pit0, & pit1, & heq;
+extern uint32_t & bg;
+extern uint16_t & int1, & int2;
+extern uint8_t * clut, * lbuf;
+extern uint32_t & g_flags, & g_mtxc, & g_mtxa, & g_end, & g_pc, & g_ctrl,
+ & g_hidata, & g_divctrl;
+extern uint32_t g_remain;
+extern uint32_t & a1_base, & a1_flags, & a1_clip, & a1_pixel, & a1_step,
+ & a1_fstep, & a1_fpixel, & a1_inc, & a1_finc, & a2_base, & a2_flags,
+ & a2_mask, & a2_pixel, & a2_step, & b_cmd, & b_count;
+extern uint64_t & b_srcd, & b_dstd, & b_dstz, & b_srcz1, & b_srcz2, & b_patd;
+extern uint32_t & b_iinc, & b_zinc, & b_stop, & b_i3, & b_i2, & b_i1, & b_i0, & b_z3,
+ & b_z2, & b_z1, & b_z0;
+extern uint16_t & jpit1, & jpit2, & jpit3, & jpit4, & clk1, & clk2, & clk3, & j_int,
+ & asidata, & asictrl;
+extern uint16_t asistat;
+extern uint16_t & asiclk, & joystick, & joybuts;
+extern uint32_t & d_flags, & d_mtxc, & d_mtxa, & d_end, & d_pc, & d_ctrl,
+ & d_mod, & d_divctrl;
+extern uint32_t d_remain;
+extern uint32_t & d_machi;
+extern uint16_t & ltxd, lrxd, & rtxd, rrxd;
+extern uint8_t & sclk, sstat;
+extern uint32_t & smode;
+/*
+uint16_t & ltxd = *((uint16_t *)&jagMemSpace[0xF1A148]);
+uint16_t lrxd; // Dual register with $F1A148
+uint16_t & rtxd = *((uint16_t *)&jagMemSpace[0xF1A14C]);
+uint16_t rrxd; // Dual register with $F1A14C
+uint8_t & sclk = *((uint8_t *) &jagMemSpace[0xF1A150]);
+uint8_t sstat; // Dual register with $F1A150
+uint32_t & smode = *((uint32_t *)&jagMemSpace[0xF1A154]);
+*/
+
+// Read/write tracing enumeration
+
+enum { UNKNOWN, JAGUAR, DSP, GPU, TOM, JERRY, M68K, BLITTER, OP };
+extern const char * whoName[9];
+
+// BIOS identification enum
+
+//enum { BIOS_NORMAL=0x01, BIOS_CD=0x02, BIOS_STUB1=0x04, BIOS_STUB2=0x08, BIOS_DEV_CD=0x10 };
+//extern int biosAvailable;
+
+// Some handy macros to help converting native endian to big endian (jaguar native)
+// & vice versa
+
+#define SET64(r, a, v) r[(a)] = ((v) & 0xFF00000000000000) >> 56, r[(a)+1] = ((v) & 0x00FF000000000000) >> 48, \
+ r[(a)+2] = ((v) & 0x0000FF0000000000) >> 40, r[(a)+3] = ((v) & 0x000000FF00000000) >> 32, \
+ r[(a)+4] = ((v) & 0xFF000000) >> 24, r[(a)+5] = ((v) & 0x00FF0000) >> 16, \
+ r[(a)+6] = ((v) & 0x0000FF00) >> 8, r[(a)+7] = (v) & 0x000000FF
+#define GET64(r, a) (((uint64_t)r[(a)] << 56) | ((uint64_t)r[(a)+1] << 48) | \
+ ((uint64_t)r[(a)+2] << 40) | ((uint64_t)r[(a)+3] << 32) | \
+ ((uint64_t)r[(a)+4] << 24) | ((uint64_t)r[(a)+5] << 16) | \
+ ((uint64_t)r[(a)+6] << 8) | (uint64_t)r[(a)+7])
+#define SET32(r, a, v) r[(a)] = ((v) & 0xFF000000) >> 24, r[(a)+1] = ((v) & 0x00FF0000) >> 16, \
+ r[(a)+2] = ((v) & 0x0000FF00) >> 8, r[(a)+3] = (v) & 0x000000FF
+#define GET32(r, a) ((r[(a)] << 24) | (r[(a)+1] << 16) | (r[(a)+2] << 8) | r[(a)+3])
+#define SET16(r, a, v) r[(a)] = ((v) & 0xFF00) >> 8, r[(a)+1] = (v) & 0xFF
+#define GET16(r, a) ((r[(a)] << 8) | r[(a)+1])
+
+//This doesn't seem to work on OSX. So have to figure something else out. :-(
+//byteswap.h doesn't exist on OSX.
+#if 0
+// This is GCC specific, but we can fix that if we need to...
+// Big plus of this approach is that these compile down to single instructions on little
+// endian machines while one big endian machines we don't have any overhead. :-)
+
+#include <byteswap.h>
+#include <endian.h>
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+ #define ESAFE16(x) bswap_16(x)
+ #define ESAFE32(x) bswap_32(x)
+ #define ESAFE64(x) bswap_64(x)
+#else
+ #define ESAFE16(x) (x)
+ #define ESAFE32(x) (x)
+ #define ESAFE64(x) (x)
+#endif
+#endif
+
+#if 0
+Stuff ripped out of Hatari, that may be useful:
+
+/* Can the actual CPU access unaligned memory? */
+#ifndef CPU_CAN_ACCESS_UNALIGNED
+# if defined(__i386__) || defined(powerpc) || defined(__mc68020__)
+# define CPU_CAN_ACCESS_UNALIGNED 1
+# else
+# define CPU_CAN_ACCESS_UNALIGNED 0
+# endif
+#endif
+
+
+/* If the CPU can access unaligned memory, use these accelerated functions: */
+#if CPU_CAN_ACCESS_UNALIGNED
+
+#include <SDL_endian.h>
-void InitMemory(void);
-void MemoryDone(void);
-void memory_malloc_secure(void ** new_ptr, uint32 size, const char * info);
-//void * memory_malloc_secure2(uint32 size, const char * info);
-void * memory_malloc(uint32 size, const char * info);
-void memory_free(void * ptr);
-void memory_memoryUsage(FILE * fp);
+static inline uae_u32 do_get_mem_long(void *a)
+{
+ return SDL_SwapBE32(*(uae_u32 *)a);
+}
+
+static inline uae_u16 do_get_mem_word(void *a)
+{
+ return SDL_SwapBE16(*(uae_u16 *)a);
+}
+
+
+static inline void do_put_mem_long(void *a, uae_u32 v)
+{
+ *(uae_u32 *)a = SDL_SwapBE32(v);
+}
+
+static inline void do_put_mem_word(void *a, uae_u16 v)
+{
+ *(uae_u16 *)a = SDL_SwapBE16(v);
+}
+
+
+#else /* Cpu can not access unaligned memory: */
+
+
+static inline uae_u32 do_get_mem_long(void *a)
+{
+ uae_u8 *b = (uae_u8 *)a;
+
+ return (b[0] << 24) | (b[1] << 16) | (b[2] << 8) | b[3];
+}
+
+static inline uae_u16 do_get_mem_word(void *a)
+{
+ uae_u8 *b = (uae_u8 *)a;
+
+ return (b[0] << 8) | b[1];
+}
+
+
+static inline void do_put_mem_long(void *a, uae_u32 v)
+{
+ uae_u8 *b = (uae_u8 *)a;
+
+ b[0] = v >> 24;
+ b[1] = v >> 16;
+ b[2] = v >> 8;
+ b[3] = v;
+}
+
+static inline void do_put_mem_word(void *a, uae_u16 v)
+{
+ uae_u8 *b = (uae_u8 *)a;
+
+ b[0] = v >> 8;
+ b[1] = v;
+}
+
+
+#endif /* CPU_CAN_ACCESS_UNALIGNED */
+
+
+/* These are same for all architectures: */
+
+static inline uae_u8 do_get_mem_byte(uae_u8 *a)
+{
+ return *a;
+}
+
+static inline void do_put_mem_byte(uae_u8 *a, uae_u8 v)
+{
+ *a = v;
+}
#endif
+
+#endif // __MEMORY_H__
projects / virtualjaguar / blobdiff