We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS

FMULT (Super FX)

From SnesLab
Revision as of 18:10, 28 November 2023 by MarioFanGamer (talk | contribs) (→‎See Also: Added link to LMULT.)
Jump to: navigation, search
Basic Info
Opcode Length ROM Speed RAM Speed Cache Speed
9F 1 byte 7 or 11 cycles 7 or 11 cycles 4 or 8 cycle
Flags Affected
B ALT1 ALT2 O/V S CY Z
0 0 0 .

FMULT is a Super FX instruction that performs a signed multiplication. The two factors are the source register and R6. The upper 16 bits of the 32-bit product are stored in the destination register. Bit 15 of the product is stored in CY. The lower 15 bits of the product appear to be discarded.

The exact speed depends on the state of the CFGR register.

R4 cannot serve as the destination register.

See Also

External Links