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RPIX (Super FX): Difference between revisions
From SnesLab
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|'''Cache Speed''' | |'''Cache Speed''' | ||
|+ | |+ | ||
| | |[[Implied]] (type 1) | ||
|3D4C | |3D4C | ||
|2 byte | |2 byte | ||
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|[[Sign Flag|S]] | |[[Sign Flag|S]] | ||
|[[CY]] | |[[CY]] | ||
|Z | |[[Zero Flag|Z]] | ||
|+ | |+ | ||
|0 | |0 | ||
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|0 | |0 | ||
|. | |. | ||
| | |S | ||
|. | |. | ||
| | |Z | ||
|} | |} | ||
'''RPIX''' (Read PIXel) is a [[Super FX]] instruction that loads a color from the [[Game Pak]] RAM and stores it in the [[destination register]]. It does this by first loading the color into the [[color matrix]] and converting it from [[PPU]] format. | '''RPIX''' (Read PIXel) is a [[Super FX]] instruction that loads a color from the [[Game Pak]] RAM and stores it in the [[destination register]]. It does this by first loading the color into the [[color matrix]] and converting it from [[PPU]] format. | ||
The X coordinate is specified by | The X coordinate is specified by R<sub>1</sub> and the Y coordinate is specified by R<sub>2</sub>. | ||
The [[ALT0]] state is restored. | |||
==== Syntax ==== | |||
<pre> | |||
RPIX | |||
</pre> | |||
=== See Also === | === See Also === | ||
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* [[COLOR]] | * [[COLOR]] | ||
* [[GETC]] | * [[GETC]] | ||
* [[Pixel Cache]] | |||
* [[ALT1]] | |||
=== External Links === | === External Links === | ||
Latest revision as of 19:17, 30 July 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | ROM Speed | RAM Speed | Cache Speed | ||
| Implied (type 1) | 3D4C | 2 byte | 24 to 80 cycles | 24 to 78 cycles | 20 to 74 cycles | ||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| B | ALT1 | ALT2 | O/V | S | CY | Z | ||
| 0 | 0 | 0 | . | S | . | Z | ||
RPIX (Read PIXel) is a Super FX instruction that loads a color from the Game Pak RAM and stores it in the destination register. It does this by first loading the color into the color matrix and converting it from PPU format.
The X coordinate is specified by R1 and the Y coordinate is specified by R2.
The ALT0 state is restored.
Syntax
RPIX
See Also
External Links
- Official Nintendo documentation on RPIX: 9.77 on Page 2-9-107 of Book II
- 8.1.3.3 RPIX INSTRUCTION on page 2-8-9 of Book II, lbid.