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IBT: 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 | !colspan="9"|Flags Affected | ||
|+ | |+ | ||
|B | |B | ||
|ALT1 | |[[ALT1]] | ||
|ALT2 | |[[ALT2]] | ||
|O/V | |[[O/V]] | ||
|S | |S | ||
|CY | |[[CY]] | ||
|Z | |Z | ||
|+ | |+ | ||
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|} | |} | ||
'''IBT''' is a [[Super FX]] instruction that loads an immediate value into a specified register. Its upper eight bits will be set to the same value as bit 7, effectively loading a signed 8-bit value. | '''IBT''' (Immediate Byte Data?) is a [[Super FX]] instruction that loads an immediate value into a specified register. Its upper eight bits will be set to the same value as bit 7, effectively loading a signed 8-bit value. | ||
=== See Also === | === See Also === | ||
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=== External Links === | === External Links === | ||
* Official Nintendo documentation on IBT: [https://archive.org/details/SNESDevManual/book2/page/ | * Official Nintendo documentation on IBT: [https://archive.org/details/SNESDevManual/book2/page/n216 Page 2-9-60 of Book II] | ||
[[Category:ASM]] | [[Category:ASM]] | ||
[[Category:Super FX]] | [[Category:Super FX]] | ||
[[Category:GSU_Control_Instructions]] | [[Category:GSU_Control_Instructions]] | ||
[[Category:Two-byte Instructions]] |
Latest revision as of 07:08, 28 November 2023
Basic Info | |||||||
---|---|---|---|---|---|---|---|
Opcode | Length | ROM Speed | RAM Speed | Cache Speed | |||
Anpp | 2 bytes | 6 cycles | 6 cycles | 2 cycles |
Flags Affected | ||||||||
---|---|---|---|---|---|---|---|---|
B | ALT1 | ALT2 | O/V | S | CY | Z | ||
0 | 0 | 0 | . | . | . | . |
IBT (Immediate Byte Data?) is a Super FX instruction that loads an immediate value into a specified register. Its upper eight bits will be set to the same value as bit 7, effectively loading a signed 8-bit value.
See Also
External Links
- Official Nintendo documentation on IBT: Page 2-9-60 of Book II