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ld

Load double word RV64 only

Loads the 64-bit double word at the address in the second register plus an offset into the first.

RISC-V manual: ld

Used in

Forms

  • ld , ()

Pseudo-instructions

The processor does not have these forms. The assembler replaces each of them with one or more real instructions. Open a row to see them.

Set t1 to contents of effective memory word address

  • Set t1 to contents of memory word at label's address

  • Load from Address

Operands

t1
Any integer register, x0 to x31, or its named alias, such as zero, t0 or t6.
imm12
A signed 12-bit immediate, -2048 to 2047.
t2
An integer register. It may be the same register as t1.
imm
An immediate value: a signed 12-bit value (-2048 to 2047) or a 32-bit value (-2147483648 to 4294967295). The size your value needs decides which real instructions the assembler uses. Open the row to see them for each size.
label
A named address in the program, such as the start of a loop or a variable in .data.

This example runs on RV64.

# value is initialized and naturally aligned for this operation.
.data
value: .dword 0x0000000012345678
.text
la t0, value
# The initialized doubleword is 0x12345678; ld writes 305419896 to t2.
ld t2, 0(t0)