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GETBL (Super FX): Difference between revisions

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{| class="wikitable" style="float:right;clear:right;width:30%"
{| class="wikitable" style="float:right;clear:right;width:30%"
!colspan="9"|Flags Clobbered
!colspan="9"|Flags Affected
|+
|+
|B
|B
|ALT1
|[[ALT1]]
|ALT2
|[[ALT2]]
|O/V
|[[O/V]]
|S
|S
|CY
|[[CY]]
|Z
|Z
|+
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'''GETBL''' is a [[Super FX]] instruction that loads one byte from the ROM buffer.
'''GETBL''' (Get Byte Low) is a [[Super FX]] instruction that loads one byte from the [[ROM buffer]] into the low byte of the [[destination register]].  GETBL also loads the high byte of the [[source register]] into the high byte of the destination register.


=== See Also ===
=== See Also ===
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=== External Links ===
=== External Links ===
* Official Nintendo documentation on GETBL: [https://archive.org/details/SNESDevManual/book2/page/n209 page 2-9-53 of Book II]
* Official Super Nintendo development manual on GETBL: 9.37 on [https://archive.org/details/SNESDevManual/book2/page/n209 page 2-9-53 of Book II]
* example: [https://archive.org/details/SNESDevManual/book2/page/n210 page 2-9-54 of Book II], lbid
 


[[Category:ASM]]
[[Category:ASM]]
[[Category:Super FX]]
[[Category:Super FX]]
[[Category:Data Transfer Instructions]]
[[Category:Data Transfer Instructions]]
[[Category:Two-byte Instructions]]

Latest revision as of 11:38, 21 December 2023

Basic Info
Opcode Length ROM Speed RAM Speed Cache Speed
3EEF 2 bytes 6 to 10 cycles 6 to 9 cycles 2 to 6 cycle
Flags Affected
B ALT1 ALT2 O/V S CY Z
0 0 0 . . . .

GETBL (Get Byte Low) is a Super FX instruction that loads one byte from the ROM buffer into the low byte of the destination register. GETBL also loads the high byte of the source register into the high byte of the destination register.

See Also

External Links