PM0215 datasheet(61/91 Pages) STMICROELECTRONICS

61 / 91 page

PM0215

The STM32 Cortex-M0 instruction set

Doc ID 022979 Rev 1

61/91

3.7

Miscellaneous instructions

Table 23 shows the remaining Cortex-M0 instructions:

3.7.1

BKPT

Breakpoint.

Syntax

BKPT #imm

where: ‘imm’ is an integer in the range 0-255.

Operation

BKPT causes the processor to enter Debug state. Debug tools can use this to investigate

system state when the instruction at a particular address is reached.

imm is ignored by the processor. If required, a debugger can use it to store additional

information about the breakpoint.

The processor might produce a HardFault or go in to lockup if a debugger is not attached

when a BKPT instruction is executed. See Lockup on page 28 for more information.

Restrictions: None

Condition flags

This instruction does not change the flags.

Examples

BKPT

; Breakpoint with immediate value set to 0x0.

Table 23.

Miscellaneous instructions

Mnemonic

Brief description

See

BKPT

Breakpoint

BKPT on page 61

CPSID

Change Processor State, Disable Interrupts

CPSID CPSIE on page 62

CPSIE

Change Processor State, Enable Interrupts

CPSID CPSIE on page 62

DMB

Data Memory Barrier

DMB on page 63

DSB

Data Synchronization Barrier

DSB on page 63

ISB

Instruction Synchronization Barrier

ISB on page 64

MRS

Move from special register to register

MRS on page 64

MSR

Move from register to special register

MSR on page 65

NOP

No Operation

NOP on page 66

SEV

Send Event

SEV on page 66

SVC

Supervisor Call

SVC on page 67

WFE

Wait For Event

WFE on page 67

WFI

Wait For Interrupt

WFI on page 68

PM0215 bảng dữ liệu(PDF) 61 Page - STMicroelectronics

PM0215 bảng dữ liệu(HTML) 61 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91

bảng dữ liệu tải về

Link URL