|Description:||Return from interrupt, compensate RTCC|
|Operation:||PC, W, FSR and status = shadow register; RTCC += lit|
|Registers affected:||RTCC PC|
|Details:||SX Users Manual page # 115|
|Microchip PIC syntax:|
RETIW - Same as RETI but adds the contents of W to RTCC without affecting the prescaler. This provides a periodic interrupt that can be adjusted by 256 steps (minus the time it takes to execute the interrupt routine)
by Loren Blaney via Richard Ottosen
The RETIW instruction ADDS W to RTCC, not subtracts it as stated in Table 16-1 in SX Datasheet page 33
|file: /Techref/scenix/inst/retiw.htm, 2KB, , updated: 2018/11/6 12:52, local time: 2020/10/24 22:56,
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<A HREF="http://www.sxlist.com/techref/scenix/inst/retiw.htm"> SX Embedded Controller Instruction - RETIW</A>
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