1 #ifndef ROUNDING_H 2 #define ROUNDING_H 3 4 /* Macros, so the values can be used together with opcodes.h */ 5 6 /* ---------------------------------------------------------------- */ 7 /* BFP rounding mode as it is encoded in the m3 field of certain */ 8 /* instructions (e.g. CFEBR) */ 9 /* ---------------------------------------------------------------- */ 10 #define M3_BFP_ROUND_PER_FPC 0 11 12 // Cannot be mapped to IRRoundingMode 13 #define M3_BFP_ROUND_NEAREST_AWAY 1 14 15 // 2 is not allowed 16 17 // Needs floating point extension facility 18 // Cannot be mapped to IRRoundingMode 19 #define M3_BFP_ROUND_PREPARE_SHORT 3 20 21 #define M3_BFP_ROUND_NEAREST_EVEN 4 22 #define M3_BFP_ROUND_ZERO 5 23 #define M3_BFP_ROUND_POSINF 6 24 #define M3_BFP_ROUND_NEGINF 7 25 26 27 /* ---------------------------------------------------------------- */ 28 /* BFP rounding mode as it is encoded in bits [29:31] of the FPC */ 29 /* register. Only rounding modes 0..3 are universally supported. */ 30 /* Others require additional hardware facilities. */ 31 /* ---------------------------------------------------------------- */ 32 #define FPC_BFP_ROUND_NEAREST_EVEN 0 33 #define FPC_BFP_ROUND_ZERO 1 34 #define FPC_BFP_ROUND_POSINF 2 35 #define FPC_BFP_ROUND_NEGINF 3 36 37 // 4,5,6 are not allowed 38 39 // Needs floating point extension facility 40 // Cannot be mapped to IRRoundingMode 41 #define FPC_BFP_ROUND_PREPARE_SHORT 7 42 43 44 #endif /* ROUNDING_H */ 45
