Operations:

Format

Syntax:

Operation:

Operands:

Architecture revision

Opcode

1

csrf bp 

SR[bp5] = 0;
 
bp ∈ {0, 1, …, 31}

Rev1+

1101010

bp5

0011

7

5

4

Description

Clears the status register (SR) flag specified.

Status Flags:

SR[bp5] = 0, all other flags unchanged.

Note:

Privileged if bp5 > 15, ie. upper half of status register. An exception will be triggered if the upper half of the status register is attempted changed in user mode.