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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PM0214 датащи(PDF) 165 Page - STMicroelectronics |
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PM0214 датащи(HTML) 165 Page - STMicroelectronics |
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165 / 245 page  DocID022708 Rev 4 165/245 PM0214 The STM32 Cortex-M4 instruction set 244 3.10.23 VNMLA, VNMLS, VNMUL Floating-point multiply with negation followed by add or subtract. Syntax VNMLA{cond}.F32 Sd, Sn, Sm VNMLS{cond}.F32 Sd, Sn, Sm VNMUL{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 The VNMLA instruction: 1. Multiplies two floating-point register values. 2. Adds the negation of the floating-point value in the destination register to the negation of the product. 3. Writes the result back to the destination register. The VNMLS instruction: 1. Multiplies two floating-point register values. 2. Adds the negation of the floating-point value in the destination register to the product. 3. writes the result back to the destination register. The VNMUL instruction: 1. Multiplies together two floating-point register values. 2. Writes the negation of the result to the destination register. Restrictions There are no restrictions. Condition flags These instructions do not change the flags. |
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