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CMP (Super FX): Difference between revisions

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'''CMP''' (Compare) is a [[Super FX]] instruction that compares the operand register with the [[source register]].  Internally, this is done via a subtraction, but the difference is not stored anywhere.  Thus, the purpose of CMP is to setup the flags.
'''CMP''' (Compare) is a [[Super FX]] instruction that compares the operand register with the [[source register]].  Internally, this is done via a subtraction, but the difference is not stored anywhere.  Thus, the purpose of CMP is to setup the flags.


The operand can be any register from R<sub>0</sub> to R<sub>15</sup>.
The operand serves as the subtrahend and can be any register from R<sub>0</sub> to R<sub>15</sup>.


=== See Also ===
=== See Also ===

Revision as of 03:11, 2 July 2024

Basic Info
Addressing Mode Opcode Length ROM Speed RAM Speed Cache Speed
Implied 3F6n 2 bytes 6 cycles 6 cycles 2 cycles
Flags Affected
B ALT1 ALT2 O/V S CY Z
0 0 0

CMP (Compare) is a Super FX instruction that compares the operand register with the source register. Internally, this is done via a subtraction, but the difference is not stored anywhere. Thus, the purpose of CMP is to setup the flags.

The operand serves as the subtrahend and can be any register from R0 to R15.

See Also

External Links