1  /*******************************************************************************
 2  *																			   *
 3  *	Define size independent data types and operations.						   *
 4  *																			   *
 5  *   The following types must be supported by all platforms:					   *
 6  *																			   *
 7  *	UINT8  - Unsigned 8-bit Integer		INT8  - Signed 8-bit integer           *
 8  *	UINT16 - Unsigned 16-bit Integer	INT16 - Signed 16-bit integer          *
 9  *	UINT32 - Unsigned 32-bit Integer	INT32 - Signed 32-bit integer          *
10  *	UINT64 - Unsigned 64-bit Integer	INT64 - Signed 64-bit integer          *
11  *																			   *
12  *																			   *
13  *   The macro names for the artithmatic operations are composed as follows:    *
14  *																			   *
15  *   XXX_R_A_B, where XXX - 3 letter operation code (ADD, SUB, etc.)			   *
16  *					 R   - The type	of the result							   *
17  *					 A   - The type of operand 1							   *
18  *			         B   - The type of operand 2 (if binary operation)		   *
19  *																			   *
20  *				     Each type is one of: U8,8,U16,16,U32,32,U64,64			   *
21  *																			   *
22  *******************************************************************************/
23  
24  
25  #ifndef OSD_CPU_H
26  #define OSD_CPU_H
27  
28  #include "shared.h"
29  
30  /* Combine two 32-bit integers into a 64-bit integer */
31  #define COMBINE_64_32_32(A,B)     ((((UINT64)(A))<<32) | (UINT32)(B))
32  #define COMBINE_U64_U32_U32(A,B)  COMBINE_64_32_32(A,B)
33  
34  /* Return upper 32 bits of a 64-bit integer */
35  #define HI32_32_64(A)		  (((UINT64)(A)) >> 32)
36  #define HI32_U32_U64(A)		  HI32_32_64(A)
37  
38  /* Return lower 32 bits of a 64-bit integer */
39  #define LO32_32_64(A)		  ((A) & 0xffffffff)
40  #define LO32_U32_U64(A)		  LO32_32_64(A)
41  
42  #define DIV_64_64_32(A,B)	  ((A)/(B))
43  #define DIV_U64_U64_U32(A,B)  ((A)/(UINT32)(B))
44  
45  #define MOD_32_64_32(A,B)	  ((A)%(B))
46  #define MOD_U32_U64_U32(A,B)  ((A)%(UINT32)(B))
47  
48  #define MUL_64_32_32(A,B)	  ((A)*(INT64)(B))
49  #define MUL_U64_U32_U32(A,B)  ((A)*(UINT64)(UINT32)(B))
50  
51  
52  /******************************************************************************
53   * Union of UINT8, UINT16 and UINT32 in native endianess of the target
54   * This is used to access bytes and words in a machine independent manner.
55   * The upper bytes h2 and h3 normally contain zero (16 bit CPU cores)
56   * thus PAIR.d can be used to pass arguments to the memory system
57   * which expects 'int' really.
58   ******************************************************************************/
59  typedef union {
60  #ifdef LSB_FIRST
61  	struct { UINT8 l,h,h2,h3; } b;
62  	struct { UINT16 l,h; } w;
63  #else
64  	struct { UINT8 h3,h2,h,l; } b;
65  	struct { UINT16 h,l; } w;
66  #endif
67  	UINT32 d;
68  }	PAIR;
69  
70  #endif	/* defined OSD_CPU_H */