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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) 153 Page - STMicroelectronics |
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PM0214 датащи(HTML) 153 Page - STMicroelectronics |
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153 / 245 page  DocID022708 Rev 4 153/245 PM0214 The STM32 Cortex-M4 instruction set 244 3.10.6 VCVTB, VCVTT Converts between a half-precision value and a single-precision value. Syntax VCVT{y}{cond}.F32.F16 Sd, Sm VCVT{y}{cond}.F16.F32 Sd, Sm where: • ‘y’ Specifies which half of the operand register Sm or destination register Sd is used for the operand or destination: If y is B, then the bottom half, bits [15:0], of Sm or Sd is used. If y is T, then the top half, bits [31:16], of Sm or Sd is used. • ‘cond’ is an optional condition code, see Conditional execution on page 64. • ‘Sd’ is the destination register • ‘Sm’ is the operand register. Operation This instruction with the .F16.32 suffix: 1. Converts the half-precision value in the top or bottom half of a single-precision. register to single-precision. 2. Writes the result to a single-precision register. This instruction with the .F32.F16 suffix: 1. Converts the value in a single-precision register to half-precision. 2. Writes the result into the top or bottom half of a single-precision register, preserving the other half of the target register. Restrictions There are no restrictions. Condition flags These instructions do not change the flags. |
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