Minor RTC Updates

Source/ZSDOS/Clock/Build.cmd

@@ -11,4 +11,4 @@ set ZXBINDIR=%TOOLS%/cpm/bin/
 set ZXLIBDIR=%TOOLS%/cpm/lib/
 set ZXINCDIR=%TOOLS%/cpm/include/
 
-zx ZMAC -HBCLK -/P
+zx ZMAC -WBWCLK -/P

Source/ZSDOS/Clock/ReadMe.txt

@@ -1,9 +1,23 @@
-This directory contains the source and assembled versions of the ZSystem Clock Drivers for N8VEM HBIOS.
+This directory contains the source and assembled versions of the
+ZSystem Clock Drivers for RomWBW HBIOS.
 
-The hbclk.z80 source file can be compiled using Build.cmd which will produce a relocatable binary (hbclk.rel).
+The wbwclk.z80 source file can be compiled using Build.cmd which will
+produce a relocatable binary (hbclk.rel).
 
-The relocatable binary should be added/updated in the stamps.dat libary.  The stamps.dat file is just a standard LU type library and is easily updated using NULU.  The members are the relocatable binaries, but with the .REL extension removed.
+The relocatable binary should be added/updated in the STAMPS.DAT
+library.  The STAMPS.DAT file is just a standard LU type library and
+is easily updated using NULU.  The members are the relocatable
+binaries, but with the .REL extension removed.
 
-SETUPZST is used to create runnable executable (.COM) files.  An executable has been created for DateStamper (LDDS.COM) and P2DOS (LDP2D.COM).  The executables are all configured for operation as an RSX (resident system extension).
+SETUPZST is used to create runnable executable (.COM) files.  An
+executable has been created for DateStamper (LDDS.COM), P2DOS
+(LDP2D.COM), and NZTime (LDNZT.COM) .  The executables are all
+configured for operation as an RSX (resident system extension).
 
-The STAMPS.DAT file here is a version that I cobbled together.  Using the STAMPS.DAT file included in the ZSDOS distribution results in a load file that does not work.  It claims to load, but is not present.  I found a "fixed" version of STAMPS.DAT on the Walnut Creek CD-ROM which works, but was missing the NZ and NZP2 stamp variants.  So, I added those variants to the working version of STAMPS.DAT which is included here.
+The STAMPS.DAT file here is a version that I cobbled together.  Using
+the STAMPS.DAT file included in the ZSDOS distribution results in a
+load file that does not work.  It claims to load, but is not
+present.  I found a "fixed" version of STAMPS.DAT on the Walnut Creek
+CD-ROM which works, but was missing the NZ and NZP2 stamp variants.
+So, I added those variants to the working version of STAMPS.DAT which
+is included here.

Source/ZSDOS/Clock/preclock.lib

@@ -10,6 +10,8 @@ TSTRD:	JR	TSTRD0		; Jump around address store
 
 TSTRD0:	LD	(CKCLK+1),DE	; Patch GETTIM address in
 	CALL	CKCLK		; Get time to start with
+	DEC	A		; WBW: 1 -> 0
+	JR	NZ,BAD		; WBW: NO GOOD
 	LD	A,(HL)		; Get seconds
 	CP	60H		; Check for valid digit
 	JR	NC,BAD		; >= 60h

Source/ZSDOS/Clock/hbclk.z80 → Source/ZSDOS/Clock/wbwclk.z80

@@ -1,15 +1,15 @@
-	TITLE	"N8VEM HBIOS Clock Interface"
+	TITLE	"ROMWBW HBIOS Clock Interface"
 	SUBTTL	"Description of Clock Module"
 ;===================================================================
-; HBCLK.Z80
-;  HBIOS Clock driver for N8VEM Z80 Series Computer
+; WBWCLK.Z80
+;  HBIOS Clock driver for RomWBW System Software
 ;				Wayne Warthen
-; Version: 18 Apr 2014
+; Version: 31 Mar 2020
 ;===================================================================
 
-VERS	EQU	10
+VERS	EQU	11
        .Z80
-       NAME	HBIOS
+       NAME	WBWCLK
        
 	MACLIB	CLOCK.LIB
 
@@ -17,10 +17,10 @@ VERS	EQU	10
 
 DESCST: DEFW	0		; Pointer to static year value if required
 
-CLKNAM:	DEFB	'N8VEM HBIOS Clock       '	; Exactly 24 chars in name
+CLKNAM:	DEFB	'RomWBW HBIOS Clock      '	; Exactly 24 chars in name
 	DEFB    VERS/10+'0','.',VERS MOD 10 +'0',0
 
-DESCR:	DEFB	'N8VEM Z80 Series HBIOS Clock',0
+DESCR:	DEFB	'RomWBW Series HBIOS Clock',0
 
 	  IF  [$-DESCST] > 256
 	OVER2
@@ -55,9 +55,9 @@ GETTIM:	PUSH	HL		; Save final buffer pointer
 	LD	HL,TIMBUF	; Point to temp buf for HBIOS read
 	LD	B,20H		; HBIOS Read Clock function = $20
 	RST	08		; Call HBIOS to get time
-	JR	NZ,ERRRET	; Error return
 	LD	HL,TIMBUF	; Source is start of temp buf
 	POP	DE		; Destination is buffer provided originally
+	JR	NZ,ERRRET	; Error return
 	LD	BC,5		; Copy just the first 5 bytes
 	LDIR			; Do it
 	LD	A,(DE)		; Save the original seconds value
@@ -80,7 +80,7 @@ WRCLK:	LD	DE,TIMBUF	; Copy to temp buf
 	LD	A,1		; Signal success
 	RET			; Done
 ;
-ERRRET:	XOR	A		; Error
+ERRRET:	OR	0FFH		; Error
 	RET			; Done
 ;
 TIMBUF	DEFS	6		; Temp date/time buffer