eciwx

External Control In Word Indexed

eciwx RT, RA, RB

Loads a word from an external device using the EAR register.

Details

The External Control In Word Indexed instruction loads a word from an external device using the EAR register.

Pseudocode Operation

// Loads a word from an external device using the EAR register

Example

eciwx r3, r4, r5

Encoding

Binary Layout
31
0
RT
6
RA
11
RB
16
310
21
/
31
 
Format X-form
Opcode 0x7C00026C
Extension Base

Operands

  • RT
    Target
  • RA
    Base
  • RB
    Index