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GETB (Super FX): Difference between revisions

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'''GETB''' (Get Byte) is a [[Super FX]] instruction that loads one byte from the [[ROM buffer]] into the low byte of the [[destination register]].  The high byte of the destination register is zeroed.
'''GETB''' (Get Byte) is a [[Super FX]] instruction that loads one byte from the [[ROM buffer]] into the low byte of the [[destination register]].  The high byte of the destination register is zeroed.
The reason the cycle times can vary is because of the ROM buffer.


[[File:gsu_getb.png]]
[[File:gsu_getb.png]]

Revision as of 00:45, 1 July 2024

Basic Info
Opcode Length ROM Speed RAM Speed Cache Speed
EF 1 byte 3 to 8 cycles 3 to 9 cycles 1 to 6 cycles
Flags Affected
B ALT1 ALT2 O/V S CY Z
0 0 0 . . . .

GETB (Get Byte) is a Super FX instruction that loads one byte from the ROM buffer into the low byte of the destination register. The high byte of the destination register is zeroed.

The reason the cycle times can vary is because of the ROM buffer.

gsu getb.png

See Also

External Links