arm/nwfpe/todo.rst

6   POW{cond}<S|D|E>{P,M,Z} Fd, Fn, <Fm,#value> - power
7   RPW{cond}<S|D|E>{P,M,Z} Fd, Fn, <Fm,#value> - reverse power
8   POL{cond}<S|D|E>{P,M,Z} Fd, Fn, <Fm,#value> - polar angle (arctan2)
10   LOG{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - logarithm to base 10
11   LGN{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - logarithm to base e
12   EXP{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - exponent
13   SIN{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - sine
14   COS{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - cosine
15   TAN{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - tangent
16   ASN{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - arcsine
17   ACS{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - arccosine
18   ATN{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - arctangent
25 There are a couple of ways to approach the implementation of these.  One
27 a couple of papers by S. Gal from IBM's research labs in Haifa, Israel that
32 Coordinate Rotation Digital Computer, and is a method of computing
33 transcendental functions using mostly shifts and adds and a few
35 so such a method could be promising, but requires more research to
39 ----------------
42 default, but rounding to + or - infinity or round to zero are also allowed.
44 in a control register.  Not so with the ARM FPA11 architecture.  To change
48 introduce such a capability into the emulator.  The FPCR contains
50 examine a flag, which if set forced it to ignore the rounding mode in
53 This would require a method of getting/setting the flag, and the bits
54 in the FPCR.  This requires a kernel call in ArmLinux, as WFC/RFC are
63  implementations: it is there to control the hardware in an implementation-
69  Hence, the answer is yes, you could do this, but then you will run a high
72 		-- Russell.