SPRUJ53B April 2024 – September 2024 TMS320F28P550SJ , TMS320F28P559SJ-Q1
Move Immediate Value to the Lower 16-Bits of a Floating-Point Register
MRa | CLA floating-point register (MR0 to MR3) |
#16FLoHex | A 16-bit immediate hex value that represents the lower 16-bits of an IEEE 32-bit floating-point value. The upper 16-bits are not modified. |
LSW: IIII IIII IIII IIII
MSW: 0111 1000 1000 00aa
Load the lower 16-bits of MRa with the immediate value #16FLoHex. #16FLoHex represents the lower 16-bits of an IEEE 32-bit floating-point value. The upper 16-bits of MRa are not modified. MMOVXI can be combined with the MMOVIZ instruction to initialize all 32-bits of a MRa register.
MRa(15:0) = #16FLoHex;
MRa(31:16) = Unchanged;
Flag | TF | ZF | NF | LUF | LVF |
---|---|---|---|---|---|
Modified | No | No | No | No | No |
This is a single-cycle instruction.
; Load MR0 with pi = 3.141593 (0x40490FDB)
MMOVIZ MR0,#0x4049 ; MR0 = 0x40490000
MMOVXI MR0,#0x0FDB ; MR0 = 0x40490FDB