NVIDIA ISA Viewer

LDS

Load within Shared Memory Window

4 variants on SM90 (H100)

LDS
R,[R]
distilled: @P0 LDS.U8 R0, [R0] ;
key: LDS_R_R
0123456701234567012345670123456701234567012345670123456701234567
001000011001predoperand 0operand 100000000000000000000000000000000
0123456701234567012345670123456701234567012345670123456701234567
000000000modi 100modi0000000000000000000000000stallyr-barw-barb-maskreuse00

Modifier Group 1

BinaryValue
000U8
001S8
010U16
011S16
100(default)
10164
110128
111???7

Operand 1 Modifiers

BinaryValue
00(default)
01X4
10X8
11X16
LDS
R,[R+I]
distilled: @P0 LDS.U8 R0, [R0+0x1] ;
key: LDS_R_R_I
0123456701234567012345670123456701234567012345670123456701234567
001000011001predoperand 0operand 100000000operand 2
0123456701234567012345670123456701234567012345670123456701234567
000000000modi 100modi0000000000000000000000000stallyr-barw-barb-maskreuse00

Modifier Group 1

BinaryValue
000U8
001S8
010U16
011S16
100(default)
10164
110128
111???7

Operand 1 Modifiers

BinaryValue
00(default)
01X4
10X8
11X16
LDS
R,[R+UR]
distilled: @P0 LDS.U8 R0, [R0+UR0] ;
key: LDS_R_R_UR
0123456701234567012345670123456701234567012345670123456701234567
001000011001predoperand 0operand 1operand 20000000000000000000000000
0123456701234567012345670123456701234567012345670123456701234567
000000000modi 100modi0000000000010000000000000stallyr-barw-barb-maskreuse00

Modifier Group 1

BinaryValue
000U8
001S8
010U16
011S16
100(default)
10164
110128
111???7

Operand 1 Modifiers

BinaryValue
00(default)
01X4
10X8
11X16
LDS
R,[R+UR+I]
distilled: @P0 LDS.U8 R0, [R0+UR0+0x1] ;
key: LDS_R_R_UR_I
0123456701234567012345670123456701234567012345670123456701234567
001000011001predoperand 0operand 1operand 20operand 3
0123456701234567012345670123456701234567012345670123456701234567
000000000modi 100modi0000000000010000000000000stallyr-barw-barb-maskreuse00

Modifier Group 1

BinaryValue
000U8
001S8
010U16
011S16
100(default)
10164
110128
111???7

Operand 1 Modifiers

BinaryValue
00(default)
01X4
10X8
11X16