PM0214 datasheet(136/245 Pages) STMICROELECTRONICS

Part #	PM0214

Description	This programming manual provides information

PDF	245 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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136 / 245 page

The STM32 Cortex-M4 instruction set

PM0214

136/245

DocID022708 Rev 4

Examples

SXTAH

R4, R8, R6, ROR #16 ; Rotates R6 right by 16 bits, obtains bottom

; halfword, sign extends to 32 bits, adds R8,and

; writes to R4

UXTAB

R3, R4, R10

; Extracts bottom byte of R10 and zero extends to 32

; bits, adds R4, and writes to R3.

3.9

Bitfield instructions

Table 32 shows the instructions that operate on adjacent sets of bits in registers or bitfields.

Table 32. Instructions that operate on adjacent sets of bits

Mnemonic

Brief description

See

BFC

Bit field clear

BFC and BFI on page 137

BFI

Bit field insert

BFC and BFI on page 137

SBFX

Signed bit field extract

SBFX and UBFX on page 138

SXTB

Sign extend a byte

SXT and UXT on page 139

SXTH

Sign extend a halfword

SXT and UXT on page 139

UBFX

Unsigned bit field extract

SBFX and UBFX on page 138

UXTB

Zero extend a byte

SXT and UXT on page 139

UXTH

Zero extend a halfword

SXT and UXT on page 139

PM0214 Datasheet(PDF) 136 Page - STMicroelectronics

PM0214 Datasheet(HTML) 136 Page - STMicroelectronics

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