Syntax:

• LUTEXP Rd3 BS Rs1

Description:

LUTEXP evaluates a seed value used for a faster computation of e^a and returns it to register Rd3. The value of "a" is given in register Rs1. Instruction is performed according to BS (bank select) and is stack conditioned.

Microcode Pattern:

Takes 4 cycles to execute.
    Example: LUTEXP 0xA3 3 0xA1

	  
	MPC  BS3 C3 P3 P1
	-----------------
	EXP   0  0  00 A1
	 -    0  0  00 00
	 -    0  0  00 00
	 -    3  0  A3 00

	  

Exceptions :

Exceptional cases are handled as specified in table below (in all these cases, mantissa is set to zero):

Sz	Ez	mz	Sp	Ep	Exceptions
x	0x7FF	x	0	0x7FF	BADOP
0	0x7FE:0x434	x	0	0x7FF	OVF
0	0x433	<=0x7FE	0	mz(10:0)	-
0	0x432:0x000	x	0	0x000	-
1	0x7FE:0x000	x	0	0x000	-

Example :

Not available for the moment.