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LMULT (Super FX): Difference between revisions
From SnesLab
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'''LMULT''' is a signed multiplication [[Super FX]] instruction. The exact speed depends on the state of the [[CFGR]] register. | '''LMULT''' is a signed multiplication [[Super FX]] instruction. The exact speed depends on the state of the [[CFGR]] register. | ||
LMULT utilizes the 8-bit multiplier four times.<sup>[3]</sup> | |||
=== See Also === | === See Also === | ||
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=== External Links === | === External Links === | ||
# Official Nintendo documentation on LMULT: [https://archive.org/details/SNESDevManual/book2/page/n229 page 2-9-73 of Book II] | |||
# example: [https://archive.org/details/SNESDevManual/book2/page/n230 page 2-9-74 of Book II], lbid. | |||
# https://archive.org/details/SNESDevManual/book2/page/n155 | |||
[[Category:ASM]] | [[Category:ASM]] | ||
[[Category:Super FX]] | [[Category:Super FX]] | ||
Revision as of 12:11, 22 December 2023
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Opcode | Length | ROM Speed | RAM Speed | Cache Speed | |||
| 3D9F | 2 bytes | 10 or 14 cycles | 10 or 14 cycles | 5 or 9 cycles | |||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| B | ALT1 | ALT2 | O/V | S | CY | Z | ||
| 0 | 0 | 0 | . | |||||
LMULT is a signed multiplication Super FX instruction. The exact speed depends on the state of the CFGR register.
LMULT utilizes the 8-bit multiplier four times.[3]
See Also
External Links
- Official Nintendo documentation on LMULT: page 2-9-73 of Book II
- example: page 2-9-74 of Book II, lbid.
- https://archive.org/details/SNESDevManual/book2/page/n155