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STW (Super FX): Difference between revisions

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[[Category:Super FX]]
[[Category:Super FX]]
[[Category:Data Transfer Instructions]]
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[[Category:Expects Sreg/Dreg Prearranged]]

Revision as of 18:15, 9 July 2024

Basic Info
Addressing Mode Opcode Length ROM Speed RAM Speed Cache Speed
3m 1 byte 3 to 8 cycles 7 to 11 cycles 1 to 6 cycles
Flags Affected
B ALT1 ALT2 O/V S CY Z
0 0 0 . . . .

STW (Store Word) is a Super FX instruction that stores the value of the source register to the Game Pak.

The exact number of cycles varies because STW utilizes the RAM buffer.

The operand may be any register from R0 to R11.

Syntax

STW (Rm)

Example

Let:

Sreg : R10
R10 = 9326h
R2 : 5872h
RAMBR = 70h

After STW (R2) is executed:

(70:5872h) = 26h
(70:5873h) = 93h

See Also

External Links