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IBT: Difference between revisions
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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''' 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. | ||
{| class="wikitable" style="float:right;clear:right;width:40%" | |||
!colspan="8"|Basic Info | |||
|+ | |||
|'''Opcode''' | |||
|'''Length''' | |||
|'''ROM Speed''' | |||
|'''RAM Speed''' | |||
|'''Cache Speed''' | |||
|+ | |||
|Anpp | |||
|2 bytes | |||
|6 cycles | |||
|6 cycles | |||
|2 cycles | |||
|} | |||
{| class="wikitable" style="float:right;clear:right;width:30%" | {| class="wikitable" style="float:right;clear:right;width:30%" | ||
Revision as of 04:49, 25 May 2023
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.
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Opcode | Length | ROM Speed | RAM Speed | Cache Speed | |||
| Anpp | 2 bytes | 6 cycles | 6 cycles | 2 cycles | |||
| Flags Clobbered | ||||||||
|---|---|---|---|---|---|---|---|---|
| B | ALT1 | ALT2 | O/V | S | CY | Z | ||
| 0 | 0 | 0 | . | . | . | . | ||
See Also
External Links
- Official Nintendo documentation on IBT: https://archive.org/details/SNESDevManual/book2/page/n215