arm/nwfpe/fpopcode.h

27 |c o n d|1 1 0 P|U|u|W|L|   Rn  |v|  Fd |0|0|0|1|  o f f s e t  | CPDT
28 |c o n d|1 1 0 P|U|w|W|L|   Rn  |x|  Fd |0|0|0|1|  o f f s e t  | CPDT
30 |c o n d|1 1 1 0|a|b|c|d|e|  Fn |j|  Fd |0|0|0|1|f|g|h|0|i|  Fm | CPDO
31 |c o n d|1 1 1 0|a|b|c|L|e|  Fn |   Rd  |0|0|0|1|f|g|h|1|i|  Fm | CPRT
32 |c o n d|1 1 1 0|a|b|c|1|e|  Fn |1|1|1|1|0|0|0|1|f|g|h|1|i|  Fm | comparisons
54 P		pre/post index bit: 0 = postindex, 1 = preindex
55 U		up/down bit: 0 = stack grows down, 1 = stack grows up
56 W		write back bit: 1 = update base register (Rn)
57 L		load/store bit: 0 = store, 1 = load
64 uv		transfer length (TABLE 1)
69 j		dyadic/monadic bit: 0 = dyadic, 1 = monadic
70 i 		constant bit: 1 = constant (TABLE 6)
74 TABLE 1
75 +-------------------------+---+---+---------+---------+
77 +-------------------------+---+---+---------+---------+
78 | Single                  | 0 | 0 |    x    | 1 words |
79 | Double                  | 1 | 1 |    x    | 2 words |
80 | Extended                | 1 | 1 |    x    | 3 words |
81 | Packed decimal          | 1 | 1 |    0    | 3 words |
82 | Expanded packed decimal | 1 | 1 |    1    | 4 words |
83 +-------------------------+---+---+---------+---------+
89 +---+---+---------------------------------+
91 +---+---+---------------------------------+
92 | 0 | 1 |  1                              |
93 | 1 | 0 |  2                              |
94 | 1 | 1 |  3                              |
96 +---+---+---------------------------------+
101 +---+---+---+---+----------+-----------------------+-----------------------+
103 +---+---+---+---+----------+-----------------------+-----------------------+
105 | 0 | 0 | 0 | 1 | MUF      | Multiply              | Fd := Fn * Fm         |
106 | 0 | 0 | 1 | 0 | SUF      | Subtract              | Fd := Fn - Fm         |
107 | 0 | 0 | 1 | 1 | RSF      | Reverse subtract      | Fd := Fm - Fn         |
108 | 0 | 1 | 0 | 0 | DVF      | Divide                | Fd := Fn / Fm         |
109 | 0 | 1 | 0 | 1 | RDF      | Reverse divide        | Fd := Fm / Fn         |
110 | 0 | 1 | 1 | 0 | POW      | Power                 | Fd := Fn ^ Fm         |
111 | 0 | 1 | 1 | 1 | RPW      | Reverse power         | Fd := Fm ^ Fn         |
112 | 1 | 0 | 0 | 0 | RMF      | Remainder             | Fd := IEEE rem(Fn/Fm) |
113 | 1 | 0 | 0 | 1 | FML      | Fast Multiply         | Fd := Fn * Fm         |
114 | 1 | 0 | 1 | 0 | FDV      | Fast Divide           | Fd := Fn / Fm         |
115 | 1 | 0 | 1 | 1 | FRD      | Fast reverse divide   | Fd := Fm / Fn         |
116 | 1 | 1 | 0 | 0 | POL      | Polar angle (ArcTan2) | Fd := arctan2(Fn,Fm)  |
117 | 1 | 1 | 0 | 1 |          | undefined instruction | trap                  |
118 | 1 | 1 | 1 | 0 |          | undefined instruction | trap                  |
119 | 1 | 1 | 1 | 1 |          | undefined instruction | trap                  |
120 +---+---+---+---+----------+-----------------------+-----------------------+
127 +---+---+---+---+----------+-----------------------+-----------------------+
129 +---+---+---+---+----------+-----------------------+-----------------------+
131 | 0 | 0 | 0 | 1 | MNF      | Move negated          | Fd := - Fm            |
132 | 0 | 0 | 1 | 0 | ABS      | Absolute value        | Fd := abs(Fm)         |
133 | 0 | 0 | 1 | 1 | RND      | Round to integer      | Fd := int(Fm)         |
134 | 0 | 1 | 0 | 0 | SQT      | Square root           | Fd := sqrt(Fm)        |
135 | 0 | 1 | 0 | 1 | LOG      | Log base 10           | Fd := log10(Fm)       |
136 | 0 | 1 | 1 | 0 | LGN      | Log base e            | Fd := ln(Fm)          |
137 | 0 | 1 | 1 | 1 | EXP      | Exponent              | Fd := e ^ Fm          |
138 | 1 | 0 | 0 | 0 | SIN      | Sine                  | Fd := sin(Fm)         |
139 | 1 | 0 | 0 | 1 | COS      | Cosine                | Fd := cos(Fm)         |
140 | 1 | 0 | 1 | 0 | TAN      | Tangent               | Fd := tan(Fm)         |
141 | 1 | 0 | 1 | 1 | ASN      | Arc Sine              | Fd := arcsin(Fm)      |
142 | 1 | 1 | 0 | 0 | ACS      | Arc Cosine            | Fd := arccos(Fm)      |
143 | 1 | 1 | 0 | 1 | ATN      | Arc Tangent           | Fd := arctan(Fm)      |
144 | 1 | 1 | 1 | 0 | URD      | Unnormalized round    | Fd := int(Fm)         |
145 | 1 | 1 | 1 | 1 | NRM      | Normalize             | Fd := norm(Fm)        |
146 +---+---+---+---+----------+-----------------------+-----------------------+
153 +-------------------------+---+---+
155 +-------------------------+---+---+
157 | IEEE Double precision   | 0 | 1 |
158 | IEEE Extended precision | 1 | 0 |
159 | undefined (trap)        | 1 | 1 |
160 +-------------------------+---+---+
165 +---------------------------------+---+---+
167 +---------------------------------+---+---+
169 | Round toward plus infinity      | 0 | 1 |
170 | Round toward negative infinity  | 1 | 0 |
171 | Round toward zero               | 1 | 1 |
172 +---------------------------------+---+---+
212 #define LDF_OP(opcode)	(LOAD_OP(opcode) && (getCoprocessorNumber(opcode) == 1))
214 #define STF_OP(opcode)	(STORE_OP(opcode) && (getCoprocessorNumber(opcode) == 1))