Miscellaneous

- Rename Dev.txt to ReadMe.txt for consistency
- Update Dev app Makefile to not copy the internal ReadMe file to the final output
- Remove obsolete constants in BPBIOS
- Minor patches to zx and cpmtools to workaround an odd behavior in Windows Subsystem for Linux that was  causing output to fail binary comparisons.

Source/Apps/Dev/Makefile

@@ -1,5 +1,5 @@
 OBJECTS = dev.com
-DOCS = dev.txt
+#DOCS = dev.txt
 DEST = ../../../Binary/Apps
 DOCDEST = ../../../Binary/Apps
 TOOLS = ../../../Tools

Source/BPBIOS/romwbw.lib

@@ -14,14 +14,6 @@ MEMTOP	EQU	HBLOC - 1		; Last usable address
 ;
 HB_DEBUG	EQU	FALSE		; See hbios.z80 file
 ;
-; TODO: Query system via HBIOS API to determine actual size of
-; RAM and ROM, then adjust BPBIOS operation accordingly.
-;
-HB_RAMBANKS	EQU	16		; For systems with 512K of RAM
-;HB_RAMBANKS	EQU	32		; For systems with 1MB of RAM
-HB_ROMBANKS	EQU	16		; For systems with 512K of ROM
-;HB_ROMBANKS	EQU	32		; For systems with 1MB of ROM
-;
 ; Set HB_IODEV to desired HBIOS character device unit number
 ;
 ; TODO: Query system via HBIOS API to determine number of serial

Source/HBIOS/ay38910.asm

@@ -522,7 +522,8 @@ AY_EI:
 AY_WRTPSG:
 	CALL	AY_DI
 #IFDEF SBCV2004
-	LD	A,8			; SBC-V2-004 CHANGE
+	LD	A,(RTCVAL)		; GET CURRENT RTC LATCH VALUE
+	OR	%00001000		; SBC-V2-004 CHANGE
 	OUT	(RTCIO),A		; TO HALF CLOCK SPEED
 #ENDIF
 #IF (CPUFAM == CPU_Z180)
@@ -540,7 +541,7 @@ AY_WRTPSG:
 	OUT0	(Z180_DCNTL),A		; AND RESTORE IT
 #ENDIF
 #IFDEF SBCV2004
-	LD	A,0			; SBC-V2-004 CHANGE TO
+	LD	A,(RTCVAL)		; SBC-V2-004 CHANGE TO
 	OUT	(RTCIO),A		; NORMAL CLOCK SPEED
 #ENDIF
 	JP	AY_EI
@@ -552,7 +553,8 @@ AY_WRTPSG:
 AY_RDPSG:
 	CALL	AY_DI
 #IFDEF SBCV2004
-	LD	A,8			; SBC-V2-004 CHANGE
+	LD	A,(RTCVAL)		; GET CURRENT RTC LATCH VALUE
+	OR	%00001000		; SBC-V2-004 CHANGE
 	OUT	(RTCIO),A		; TO HALF CLOCK SPEED
 #ENDIF
 #IF (CPUFAM == CPU_Z180)
@@ -570,7 +572,7 @@ AY_RDPSG:
 	OUT0	(Z180_DCNTL),A		; AND RESTORE IT
 #ENDIF
 #IFDEF SBCV2004
-	LD	A,0			; SBC-V2-004 CHANGE TO
+	LD	A,(RTCVAL)		; SBC-V2-004 CHANGE TO
 	OUT	(RTCIO),A		; NORMAL CLOCK SPEED
 #ENDIF
 	JP	AY_EI