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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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PM0214 데이터시트(PDF) 163 Page - STMicroelectronics |
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PM0214 데이터시트(HTML) 163 Page - STMicroelectronics |
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163 / 245 page  DocID022708 Rev 4 163/245 PM0214 The STM32 Cortex-M4 instruction set 244 3.10.20 VMSR Move to floating-point System Register from ARM Core register. Syntax VMSR{cond} FPSCR, Rt where: • ‘cond’ is an optional condition code, see Conditional execution on page 64. • ‘Rt’ is the general-purpose register to be transferred to the FPSCR. Operation This instruction moves the value of a general-purpose register to the FPSCR. See Floating- point status control register (FPSCR) on page 239 for more information. Restrictions The restrictions are Rt cannot be PC or SP. Condition flags This instruction updates the FPSCR. 3.10.21 VMUL Floating-point Multiply. Syntax VMUL{cond}.F32 {Sd,} Sn, Sm where: • ‘cond’ is an optional condition code, see Conditional execution on page 64. • ‘Sd’ is the destination floating-point value • ‘Sn, Sm’ are the operand floating-point values. Operation This instruction: 1. Multiplies two floating-point values. 2. Places the results in the destination register. Restrictions There are no restrictions. Condition flags These instructions do not change the flags. |
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