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Half-Carry Flag: Difference between revisions
From SnesLab
m (Jeffythedragonslayer moved page Half-carry flag to Half-Carry Flag: capitalize) |
(see also decimal mode) |
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[[Category:SPC700]] | [[Category:SPC700]] | ||
[[Category:Flags]] | [[Category:Flags]] | ||
=== See Also === | |||
* [[Decimal Mode]] | |||
=== References === | === References === | ||
* https://problemkaputt.de/fullsnes.htm#snesapuspc700cpuoverview | * https://problemkaputt.de/fullsnes.htm#snesapuspc700cpuoverview | ||
Revision as of 00:38, 10 December 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.