NVIDIA ISA Viewer

FCHK

Floating-point Range Check

3 variants on SM100 (B200)

FCHK
P,R,R
distilled: @P0 FCHK P0, R0, R0 ;
key: FCHK_P_R_R
0123456701234567012345670123456701234567012345670123456701234567
010000001100pred00000000operand 1operand 20000000000000000000000cABScNEG
0123456701234567012345670123456701234567012345670123456701234567
00000000cNEGcABS000000operand 0000000000000000000000stallyr-barw-barb-maskreuse00
FCHK
P,R,F
distilled: @P0 FCHK P0, R0, 0 ;
key: FCHK_P_R_F
0123456701234567012345670123456701234567012345670123456701234567
010000001001pred00000000operand 1operand 2
0123456701234567012345670123456701234567012345670123456701234567
00000000cNEGcABS000000operand 0000000000000000000000stallyr-barw-barb-maskreuse00
FCHK
P,R,UR
distilled: @P0 FCHK P0, R0, UR0 ;
key: FCHK_P_R_UR
0123456701234567012345670123456701234567012345670123456701234567
010000001011pred00000000operand 1operand 20000000000000000000000cABScNEG
0123456701234567012345670123456701234567012345670123456701234567
00000000cNEGcABS000000operand 0000000010000000000000stallyr-barw-barb-maskreuse00