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Added comment regarding context switching.

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Russell-S-Harper 2018-09-19 22:24:23 -04:00
parent 2b06f662e2
commit 65267903c1
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common/common.h
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@ -97,6 +97,8 @@ _PS = _IDY + 1 ; saved processor status to restore
_RS = $200 ; register stack
_RSS = (FN_FX - _RS) ; register stack size
; for context switching, at least _R0 to FN_FX-1 plus one byte for the stack pointer need to be saved and restored
; last 32 bytes of page two
FN_FX = $2e0 ; list of system and user functions