122-32000 Parallax Inc, 122-32000 Datasheet - Page 396

• Manufacturer Part Number: 122-32000
• Description: MANUAL PROPELLER
• Manufacturer: Parallax Inc

Specifications of 122-32000

• Accessory Type: Manual
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: Propeller Education (PE) Kit
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

RDWORD
Instruction: Read word of main memory.
RDWORD
Result: Zero-extended word is stored in Value.
Explanation
RDWORD
stores it into the Value register.
If the
zero. The value from main memory will be written to Value unless the
RDWORD
depending on the relation between the cog’s hub access window and the instruction’s moment
of execution. See Hub on page 24 for more information.
Page 396 · Propeller Manual v1.0
–INSTR– ZCRI –CON–
000001 001i 1111 ddddddddd sssssssss
•
•
WZ
syncs to the Hub, reads the word of main memory at Address, zero-extends it, and
is a Hub instruction. Hub instructions require 7 to 22 clock cycles to execute
Value
Address
to read from.
Value,
effect is specified, the Z flag will be set (1) if the value read from main memory is
– Assembly Language Reference
(d-field) is the register to store the zero-extended word value into.
〈
(s-field) is a register or a 9-bit literalwhose value is the main memory address
#
〉
Address
–DEST–
–SRC–
Result = 0
Z Result
C Result
---
NR
effect is specified.
Written
Result
Clocks
7..22