Syntax:

• LUTLOGE Rd3 BS Rs1

Description:

Returns in register Rd3 the number as follows:

• a positive sign
• the exponent is set to "0x433", corresponding to a number of order "2⁵²"
• mantissa's [51:11] bits are set to zero
• bits [10:0] are set to:

  1. exponent of a number in Rs1 (E_Rs1)

  	if (1.mRs1 < 1.5)
  

  2. exponent of a number in Rs1 + 1 (E_Rs1 + 1))

  	if (1.5 =< 1.mRs1)
  

Instruction is performed according to BS (bank select) and is stack.

Microcode Pattern:

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

	  
	MPC  BS3 C3 P3 P1
	-----------------
	LGE   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):

Sign	ERs1(hex)	ERs3(hex)	Exceptions
0	0x7FF	0x7FF	BADOP
0	0	0x7FF	OVF
1	x	0x7FF	OVF

Example :

Not available for the moment.