andrew@frip.gwd.tek.com (Andrew Klossner) (07/06/88)
In article <2483@gumby.mips.COM>, earl@mips.COM (Earl Killian) presents a table of floating point times for the 88k and R3010, with this entry: > 88100 R3010 cycle > Operation cycles cycles ratio > ====================================== > abs/neg/mov 5? 1 To clear up the question mark: on the 88k, floating point values are kept in general registers, so "abs" is done by ANDing to 0 the sign bit, "neg" is done by XORing the sign bit, and "mov" is done with conventional register-to-register move instructions. Thus: abs 1 neg 1 sp mov 1 dp mov 2 -=- Andrew Klossner (decvax!tektronix!tekecs!andrew) [UUCP] (andrew%tekecs.tek.com@relay.cs.net) [ARPA]