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PM0214 датащи(PDF) 157 Page - STMicroelectronics |
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PM0214 датащи(HTML) 157 Page - STMicroelectronics |
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157 / 245 page ![]() DocID022708 Rev 4 157/245 PM0214 The STM32 Cortex-M4 instruction set 244 3.10.11 VLDR Loads a single extension register from memory Syntax VLDR{cond}{.64} Dd, [Rn{#imm}] VLDR{cond}{.64} Dd, label VLDR{cond}{.64} Dd, [PC, #imm}] VLDR{cond}{.32} Sd, [Rn {, #imm}] VLDR{cond}{.32} Sd, label VLDR{cond}{.32} Sd, [PC, #imm] where: • ‘cond’ is an optional condition code, see Conditional execution on page 64. • ‘64, 32 are the optional data size specifiers. • Dd is the destination register for a doubleword load. • Sd is the destination register for a singleword load. • Rn is the base register. The SP can be used. • imm is the + or - immediate offset used to form the address. Permitted address values are multiples of 4 in the range 0 to 1020. • label is the label of the literal data item to be loaded. Operation This instruction loads a single extension register from memory, using a base address from an ARM core register, with an optional offset. Restrictions There are no restrictions. Condition flags These instructions do not change the flags. |
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