ADCR - Revision history

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

2010-12-04T07:45:14Z

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

Mr z at 07:45, 4 December 2010

2010-12-04T07:45:06Z

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Mr z: /* add short note on where one might use this */

2005-01-12T19:04:51Z

‎add short note on where one might use this

Pingaso at 18:00, 12 January 2005

2005-01-12T18:00:03Z

New page

[[Category:CP1610]]
<table border>
<tr><td>Instruction Name</td><td>Add Carry to Register</td></tr>
<tr><td>Mnemonic</td><td>ADCR</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>$0028-$002F</td></tr>
<tr><td>Input Flags</td><td>[[Carry Flag]]</td></tr>
<tr><td>Output Flags</td><td>[[Sign Flag]], [[Zero Flag]], [[Overflow Flag]], [[Carry Flag]]</td></tr>
</table><br/>
The Add Carry to Register (ADCR) instruction adds one (1) to the specified register if the [[Carry Flag]] is set. Otherwise, the register is left unchanged. Regardless of whether the register is actually modified, however, the [[Sign Flag]], [[Zero Flag]], [[Overflow Flag]], and [[Carry Flag]] will all be set or cleared according to the resulting value in the register.<br/>

0000:0000:0010:1rrr<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

← Older revision	Revision as of 07:45, 4 December 2010
(No difference)

@@ Line 9: / Line 9: @@
 <tr><td>Output Flags</td><td>[[Sign Flag]], [[Zero Flag]], [[Overflow Flag]], [[Carry Flag]]</td></tr>
 </table><br/>
-The Add Carry to Register (ADCR) instruction adds one (1) to the specified register if the [[Carry Flag]] is set.  Otherwise, the register is left unchanged.  Regardless of whether the register is actually modified, however, the [[Sign Flag]], [[Zero Flag]], [[Overflow Flag]], and [[Carry Flag]] will all be set or cleared according to the resulting value in the register.<br/>
+The Add Carry to Register (ADCR) instruction adds one (1) to the specified register if the [[Carry Flag]] is set.  Otherwise, the register is left unchanged.  Regardless of whether the register is actually modified, however, the [[Sign Flag]], [[Zero Flag]], [[Overflow Flag]], and [[Carry Flag]] will all be set or cleared according to the resulting value in the register.  This instruction is useful for [[Extended Precision Arithmetic]].<br/>
 :0000:0010:1rrr<br/>