Mr z: Protected "RSWD" ([edit=autoconfirmed] (indefinite) [move=autoconfirmed] (indefinite))

2010-12-04T09:09:13Z

Protected "RSWD" ([edit=autoconfirmed] (indefinite) [move=autoconfirmed] (indefinite))

Pingaso at 21:48, 11 January 2005

2005-01-11T21:48:33Z

New page

[[Category:CP1610]]
<table border>
<tr><td>Instruction Name</td><td>Return Status Word</td></tr>
<tr><td>Mnemonic</td><td>RSWD</td></tr>
<tr><td>CP1610 Clock Cycles</td><td>6</td></tr>
<tr><td>Interruptible</td><td>Yes</td></tr>
<tr><td>Opcode Range</td><td>$0038-$003F</td></tr>
</table><br/>
The Return Status Word (RSWD) instruction sets or clears the [[Sign Flag]], [[Zero Flag]], [[Overflow Flag]], and [[Carry Flag]] according to the value in the specified register. The opcode format is as follows.<br/>

0000:0000:0011:1rrr<br/>
where:
rrr indicates the target register
such that:
rrr == 000 indicates register R0
rrr == 001 indicates register R1
rrr == 010 indicates register R2
rrr == 011 indicates register R3
rrr == 100 indicates register R4
rrr == 101 indicates register R5
rrr == 110 indicates register R6
rrr == 111 indicates register R7

After the RSWD instruction is executed, the S, Z, O, and C flags will be set or clear based on the bits in the specified register according to the format below.<br/>

0000:0000:szoc:0000<br/>
where:
s if one(1), the [[Sign Flag]] is set; otherwise, cleared
z if one(1), the [[Zero Flag]] is set; otherwise, cleared
o if one(1), the [[Overflow Flag]] is set; otherwise, cleared
c if one(1), the [[Carry Flag]] is set; otherwise, cleared

← Older revision	Revision as of 09:09, 4 December 2010
(No difference)

RSWD - Revision history

Mr z: Protected "RSWD" ([edit=autoconfirmed] (indefinite) [move=autoconfirmed] (indefinite))

Pingaso at 21:48, 11 January 2005