4 ms·
The CMOS version (at least the one from WDC, which he uses) does have it.
by wkjagt 3y ago
The CMOS version (at least the one from WDC, which he uses) does have it.
- nicetryguy 3y agoAhhh i see. So technicallyyyyy it's a 65C02. All good. So if you're trying this code on an original 6502 it will not work, but easily modifiable to use the X or Y registers instead of A.
- tom_ 3y agoAll the CMOS variants have it, regardless of manufacturer. The manufacturer-specific instructions are: - RMB/SMB/BBR/BBS - Rockwell/later WDC only - WAI/STP - later WDC only
- wkjagt 3y agoAren’t WAI and STP only on the 16 bit versions? EDIT: just looked it up, and you’re right! The 65C02S has them. I thought I saw in the WDC programming manual that it was on the 16 bit version. I’m going to play around with those a bit :-)
- zaxomi 3y agoDon't they also have BRA - BRanch Always, PHX PHY PLX PLY - PusH or PulL X or Y register, STZ - STore Zero, TRB - Test and Reset Bits, TSB - Test and Set Bits?
- tom_ 3y agoYes, but those are common to all versions, not manufacturer-specific.