lwc1
Load word to FP register
Loads a 32-bit value from memory at address ($t2 + offset) directly into FP register $f1.
Forms
lwc1 , ()
Pseudo-instructions
The assembler turns these into one or more real instructions.
-
Read from label's address, reached through the %hi already in $t2
Set $f1 to 32-bit value from effective memory word address
Operands
$f1- Any floating-point register,
$f0to$f31. imm16- A signed 16-bit immediate,
-32768to32767. $t2- Any general-purpose register,
$0to$31, using its numeric or named spelling, such as$8or$t0($zerois$0;$rais$31). label- A named address in the program, such as the start of a loop or a variable in
.data. imm- An immediate value: a signed 16-bit value (
-32768to32767) or a 32-bit value (-2147483648to4294967295). The assembler chooses a supported encoding for the value and other operands; a pseudoinstruction may expand into several instructions. imm32- A 32-bit immediate,
-2147483648to4294967295. Pseudoinstruction expansion may overwrite$at, losing its previous value.
Typically used to load a single-precision float from memory. Address must be word-aligned.
.data
value: .float 3.5
.text
# Load the initialized value. Inspect $f0: raw bits 0x40600000.
la $t0, value
lwc1 $f0, 0($t0)