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GETBL (Super FX): Difference between revisions
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'''GETBL''' is a [[Super FX]] instruction that loads one byte from the ROM buffer. | {| class="wikitable" style="float:right;clear:right;width:50%" | ||
!colspan="8"|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 | |||
|} | |||
{| class="wikitable" style="float:right;clear:right;width:30%" | |||
!colspan="9"|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 === | === See Also === | ||
* [[GETB]] | * [[GETB]] | ||
* [[GETBH]] | * [[GETBH]] | ||
=== External Links === | |||
* 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: | [[Category:Super FX]] | ||
[[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
- Official Super Nintendo development manual on GETBL: 9.37 on page 2-9-53 of Book II
- example: page 2-9-54 of Book II, lbid