VR4102 datasheet(638/701 Pages) NEC

638 / 701 page

CHAPTER 27 CPU INSTRUCTION SET DETAILS

638

SLTU

Set On Less Than Unsigned

SLTU

SPECIAL

0 0 0 0 0 0

0 0 0 0 0

SLTU

1 0 1 0 1 1

26 25

21 20

16 15

11 10

6 5

5555

Format:

SLTU rd, rs, rt

Description:

The contents of general register

rt are subtracted from the contents of general register rs. Considering both

quantities as unsigned integers, if the contents of general register

rs are less than the contents of general register

rt, the result is set to one; otherwise the result is set to zero.

The result is placed into general register

rd.

No integer overflow exception occurs under any circumstances. The comparison is valid even if the subtraction

used during the comparison overflows.

Operation:

if (0 || GPR [rs]) < 0 || GPR [rt] then

GPR [rd] <- 0

31 || 1

else

GPR [rd] <- 0

endif

if (0 || GPR [rs]) < 0 || GPR [rt] then

GPR [rd] <- 0

63 || 1

else

GPR [rd] <- 0

endif

Exceptions:

None

VR4102 Datasheet(PDF) 638 Page - NEC

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