Motorola M68000 User Manual Page 44

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Floating Point Instructions
MOTOROLA M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL 5-33
FCOSH Hyperbolic Cosine FCOSH
(MC6888X, M68040FPSP)
R/M field—Specifies the source operand address mode.
0 The operation is register to register.
1 The operation is < ea > to register.
Source Specifier field—Specifies the source register or data format.
If R/M = 0, specifies the source floating-point data register.
If R/M = 1, specifies the source data format:
000 Long-Word Integer (L)
001 Single-Precision Real (S)
010 Extended-Precision Real (X)
011 Packed-Decimal Real (P)
100 Word Integer (W)
101 Double-Precision Real (D)
110 Byte Integer (B)
Destination Register field—Specifies the destination floating- point data register. If R/
M = 0 and the source and destination fields are equal, then the input operand is
taken from the specified floating-point data register, and the result is written into
the same register. If the single register syntax is used, Motorola assemblers set
the source and destination fields to the same value.
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