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CLRP (SPC700): Difference between revisions

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'''SETP''' is an [[SPC700]] instruction that sets the [[direct page flag]].
{| class="wikitable" style="float:right;clear:right;width:40%"
 
{| class="wikitable" style="float:right;clear:right;width:30%"
!colspan="8"|Basic Info
!colspan="8"|Basic Info
|+
|+
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|'''Speed'''
|'''Speed'''
|+
|+
|implied
|[[Implied]] (type 2)
|40
|20
|1 byte
|1 byte
|2 cycles
|2 cycles
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{| class="wikitable" style="float:right;clear:right;width:30%"
{| class="wikitable" style="float:right;clear:right;width:30%"
!colspan="8"|Flags Clobbered
!colspan="8"|Flags Affected
|+
|+
|N
|[[Negative Flag|N]]
|V
|[[Overflow Flag|V]]
|P
|[[Direct Page Flag|P]]
|B
|[[Break Flag|B]]
|H
|[[Half-Carry Flag|H]]
|I
|[[Interrupt Enable Flag|I]]
|Z
|[[Zero Flag|Z]]
|C
|[[Carry Flag|C]]
|+
|+
|.
|.
|.
|.
|1
|0
|.
|.
|.
|.
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|.
|.
|}
|}
'''CLRP''' (Clear Page) is an [[SPC700]] instruction that clears the [[direct page flag]], making the [[direct page]] coincident with the [[zero page]].
No other flags are affected.
==== Syntax ====
<pre>
CLRP
</pre>
[[File:spc700 dp.png]]


=== See Also ===
=== See Also ===
* [[CLRP]]
* [[SETP]]
* [[CLRV]]
* [[CLRC]]
 
=== External Links ===
* Official Super Nintendo development manual on CLRP: Table C-19 in [https://archive.org/details/SNESDevManual/book1/page/n235 Appendix C-10 of Book I]
* anomie: https://github.com/yupferris/TasmShiz/blob/8fabc9764c33a7ae2520a76d80ed7220bb939f12/spc700.txt#L385


[[Category:ASM]]
[[Category:ASM]]
[[Category:SPC700]]
[[Category:SPC700]]
[[Category:Program Status Flag Operation Commands]]
[[Category:One-byte Instructions]]

Latest revision as of 21:54, 14 August 2024

Basic Info
Addressing Mode Opcode Length Speed
Implied (type 2) 20 1 byte 2 cycles
Flags Affected
N V P B H I Z C
. . 0 . . . . .

CLRP (Clear Page) is an SPC700 instruction that clears the direct page flag, making the direct page coincident with the zero page.

No other flags are affected.

Syntax

CLRP

spc700 dp.png

See Also

External Links