@ -1117,12 +1117,17 @@ BOOTWAIT:
JR NZ , BOOTWAIT
# ENDIF
;
;#IF ((PLATFORM == PLT_MBC) | (PLATFORM == PLT_SBC))
; INITIALIZE RTC LATCH BYTE
; EARLY RTC LATCH BYTE INITIALIZATION
; FOR SOME PLATFORMS THIS CONTROLS HI/LO SPEED CIRCUIT
LD A ,( RTCDEFVAL ) ; GET DEFAULT VALUE
; NOTE: WE WANT TO USE (RTCDEFVAL) HERE, BUT THE Z2 MEMORY
; MANAGER STARTS UP WITH THE FIRST 16K OF ROM MAPPED TO ALL
; 4 16K BANKS OF CPU SPACE. SO, IF RTCDEVFAL IS LOCATED AFTER
; PAST 16K, WE DON'T HAVE ACCESS TO IT. FOR NOW, WE JUST USE
; RTCDEF WHICH IS SUBOPTIMAL, BUT PROBABLY DOES NOT CAUSE ANY
; PROBLEMS.
;LD A,(RTCDEFVAL) ; GET DEFAULT VALUE
LD A , RTCDEF ; DEFAULT VALUE
OUT ( RTCIO ), A ; SET IT
;#ENDIF
;
# IF ( PLATFORM = = PLT_N8 )
LD A , N8_DEFACR ; ENSURE N8 ACR
@ -1144,7 +1149,9 @@ BOOTWAIT:
XOR A ; LED IS INVERTED, TURN IT ON
# ENDIF
# IF ( LEDMODE = = LEDMODE_RTC )
LD A ,( RTCDEFVAL ) ; DEFAULT LATCH VALUE
; CAN'T USE (RTCDEFVAL) YET, SEE COMMENTS ABOVE
;LD A,(RTCDEFVAL) ; DEFAULT LATCH VALUE
LD A , RTCDEF ; DEFAULT LATCH VALUE
OR % 00000001 ; LED 0 ON
# ENDIF
OUT ( LEDPORT ), A
@ -1435,11 +1442,15 @@ S100MON_SKIP:
LD A ,( HB_CURBNK ) ; GET HB_CURBNK
LD ( HBX_LOC - 2 ), A ; ... AND SAVE TEMP FOR APPBNK
;
; THE RTCVAL FIELD OF THE PROXY DATA NEEDS TO BE INITIALIZED HERE
; BECAUSE IT CANNOT BE PRE-INITIALIZED (SEE COMMENTS ABOVE WHERE
; RTCVAL EQUATE IS DEFINED).
; WE CAN NOW DO THE REAL INITIALIZATION OF THE RTC LATCH BASED ON
; (RTCDEFVAL). AT THIS POINT WE SHOULD HAVE ACCESS TO THE ROM LOCATION
; WHERE RTCDEFVAL IS STORED AND THE PROXY IS INSTALLED IN UPPER RAM
; WHERE WE WILL STORE THE WORKING SHADOW COPY (HB_RTCVAL).
; SEE COMMENTS ABOVE REGARDING THE FUNKY WAY THAT THE RTCDEFVAL IS
; CREATED.
;
LD A ,( RTCDEFVAL )
OUT ( RTCIO ), A ; SET IT
LD ( HB_RTCVAL ), A
;
# IFDEF TESTING
Wayne Warthen
2 years ago