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Half-Carry Flag: Difference between revisions

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(bit 3 to bit 4 carry)
m (Jeffythedragonslayer moved page Half-carry flag to Half-Carry Flag: capitalize)
(No difference)

Revision as of 04:38, 27 November 2023

The Half-carry flag (H) exists on the SPC700, as bit 3 of the Program Status Word. It applies to the bottom 4 bits of the accumulator, meaning it is set whenever bit 3 of an ALU operation carries over into bit 4.

It is cleared by CLRV, but there is no SETV command to set it.

References