VGMPLAY updates

Source/Apps/Build.cmd

@@ -34,6 +34,7 @@ pushd Test && call Build || exit /b & popd
 pushd ZMP && call Build || exit /b & popd
 pushd ZMD && call Build || exit /b & popd
 pushd Dev && call Build || exit /b & popd
+pushd VGM && call Build || exit /b & popd
 
 copy *.com %APPBIN%\ || exit /b
 

Source/Apps/Clean.cmd

@@ -15,3 +15,4 @@ pushd Test && call Clean || exit /b 1 & popd
 pushd ZMP && call Clean || exit /b 1 & popd
 pushd ZMD && call Clean || exit /b 1 & popd
 pushd Dev && call Clean || exit /b 1 & popd
+pushd VGM && call Clean || exit /b 1 & popd

Source/Apps/Makefile

@@ -1,7 +1,7 @@
 OBJECTS = sysgen.com survey.com \
 	syscopy.com assign.com format.com talk.com mode.com rtc.com \
 	timer.com rtchb.com
-SUBDIRS = XM FDU FAT Tune Test ZMP ZMD Dev
+SUBDIRS = XM FDU FAT Tune Test ZMP ZMD Dev VGM
 DEST = ../../Binary/Apps
 TOOLS =../../Tools
 

Source/Apps/Tune/Build.cmd

@@ -8,7 +8,6 @@ set TASMTABS=%TOOLS%\tasm32
 tasm -t180 -g3 -fFF -dWBW tune.asm tune.com tune.lst || exit /b
 tasm -t180 -g3 -fFF -dZX tune.asm tunezx.com tunezx.lst || exit /b
 tasm -t180 -g3 -fFF -dMSX tune.asm tunemsx.com tunemsx.lst || exit /b
-tasm -t180 -g3 -fFF -dWBW vgmplay.asm vgmplay.com vgmplay.lst || exit /b
 
 copy /Y tune*.com ..\..\..\Binary\Apps\ || exit /b
 copy /Y Tunes\*.* ..\..\..\Binary\Apps\Tunes\ || exit /b

Source/Apps/VGM/Build.cmd

@@ -0,0 +1,11 @@
+@echo off
+setlocal
+
+set TOOLS=../../../Tools
+set PATH=%TOOLS%\tasm32;%PATH%
+set TASMTABS=%TOOLS%\tasm32
+
+tasm -t180 -g3 -fFF -dWBW vgmplay.asm vgmplay.com vgmplay.lst || exit /b
+
+copy /Y VGMPLAY.COM ..\..\..\Binary\Apps\ || exit /b
+copy /Y Tunes\*.* ..\..\..\Binary\Apps\Tunes\ || exit /b

Source/Apps/VGM/Clean.cmd

@@ -0,0 +1,5 @@
+@echo off
+setlocal
+
+if exist *.com del *.com
+if exist *.lst del *.lst

Source/Apps/VGM/Makefile

@@ -0,0 +1,14 @@
+OBJECTS = VGMPLAY.COM
+DEST = ../../../Binary/Apps
+TOOLS = ../../../Tools
+
+include $(TOOLS)/Makefile.inc
+
+DEPS := VGMPLAY.ASM $(shell find . -name '*.inc')
+
+VGMPLAY.COM: $(DEPS)
+	$(TASM) -dWBW VGMPLAY.ASM VGMPLAY.COM VGMPLAY.LST
+
+all::
+	mkdir -p $(DEST)/Tunes
+	cp Tunes/* $(DEST)/Tunes

Source/Apps/VGM/VGMPLAY.ASM

@@ -5,7 +5,7 @@
 ;
 ; Enhanced with multi-chip support by Marco Maccaferri
 ;
-; YM2162/YM3484, GD3 support added by Phil Summers
+; YM2162/YM3484, GD3 support, VGM Chip identification added by Phil Summers
 ;
 ; Compile with:
 ;
@@ -242,6 +242,43 @@ EXIT
 #IFDEF SBCV2004
 		CALL	FASTIO
 #ENDIF
+
+		LD	DE,MSG_PO
+		CALL	PRTSTR
+
+		LD	A,(IX+0)
+		PUSH	AF
+		AND	%00000011
+		srl	a
+		ADC	A,'0'
+		CALL	PRTCHR
+		LD	DE,MSG_SN
+		CALL	PRTSTR
+
+		POP	AF
+		srl	a
+		srl	a
+		PUSH	AF
+
+		AND	%00000011
+		srl	a
+		ADC	A,'0'
+		CALL	PRTCHR
+		LD	DE,MSG_AY
+		CALL	PRTSTR
+
+		POP	AF
+		srl	a
+		srl	a
+		PUSH	AF
+
+		AND	%00000011
+		srl	a
+		ADC	A,'0'
+		CALL	PRTCHR
+		LD	DE,MSG_YM
+		CALL	PRTSTR
+
                 LD      A, 9FH              	; Mute all channels on psg
                 OUT     (PSGREG), A
                 OUT     (PSG2REG), A
@@ -308,6 +345,7 @@ PLAY
 #IFDEF SBCV2004
 		CALL	SLOWIO
 #ENDIF
+		LD	IX,DEV_FLAG
                 LD      HL, (VGMPOS)		; Start processing VGM commands
 NEXT            LD      A, (HL)
                 INC     HL
@@ -333,6 +371,8 @@ PSG             CP      VGM_PSG_W		; Write byte to SN76489.
                 LD      A, (HL)
 		INC	HL
                 OUT     (PSGREG), A
+		LD	IX,DEV_FLAG
+		SET	0,(IX+0)
                 JR      NEXT
 
 PSG2            CP      30H			; Write byte to second SN76489.
@@ -340,6 +380,8 @@ PSG2            CP      30H			; Write byte to second SN76489.
                 LD      A, (HL)
                 INC     HL
                 OUT     (PSG2REG), A
+		LD	IX,DEV_FLAG
+		SET	1,(IX+0)
                 JR      NEXT
 
 ;	AY SECTION
@@ -355,11 +397,15 @@ AY              CP      0A0H
                 LD      A, (HL)
                 INC     HL
                 OUT     (RDAT2), A
+		LD	IX,DEV_FLAG
+		SET	2,(IX+0)
                 JR      NEXT
 AY1		OUT     (RSEL), A
                 LD      A, (HL)
                 INC     HL
                 OUT     (RDAT), A
+		LD	IX,DEV_FLAG
+		SET	3,(IX+0)
                 JR      NEXT
 
 ;	YM SECTION
@@ -373,7 +419,9 @@ YM:		CP      052H
 		LD	A,(HL)
 		OUT	(YMDAT),A
 		INC	HL
-		JR	NEXT
+		LD	IX,DEV_FLAG
+		SET	4,(IX+0)
+		JP	NEXT
 
 YM2:		CP      053H
                 JR      NZ, PCM
@@ -384,6 +432,8 @@ YM2:		CP      053H
 		LD	A,(HL)
 		OUT	(YM2DAT),A
 		INC	HL
+		LD	IX,DEV_FLAG
+		SET	4,(IX+0)
 		JP	NEXT
 
 PCM:	
@@ -451,6 +501,10 @@ MSG_WELC:	.DB	"VGM Player for RomWBW v0.1, 8-Nov-2021",CR,LF
 ;		.DB	"J.B. Langston/Marco Maccaferri/Phil Summers",CR,LF
 		.DB	0
 MSG_BADF:	.DB	"Not a VGM file",CR,LF,0
+MSG_PO		.DB	"Played on : ",0
+MSG_YM:		.DB	"xYM-2612 ",0
+MSG_SN:		.DB	"xSN76489 ",0
+MSG_AY:		.DB	"xAY-3-8910 ",0
 
 ;------------------------------------------------------------------------------
 ; Variables
@@ -459,9 +513,10 @@ MSG_BADF:	.DB	"Not a VGM file",CR,LF,0
 VGMPOS          .DW     0
 VGMDLY          .DW     0
 
-OLDSTACK        .DW     0                   ; original stack pointer
-                .DS     40H                 ; space for stack
-STACK                                       ; top of stack
+DEV_FLAG	.DB	%00000000	; 000YAASS
+OLDSTACK        .DW     0		; original stack pointer
+                .DS     40H		; space for stack
+STACK					; top of stack
 
 ;------------------------------------------------------------------------------
 ; VGM data

Source/Apps/VGM/printing.inc

@@ -0,0 +1,175 @@
+;
+; Print character in A without destroying any registers
+;
+PRTCHR:
+	PUSH	BC		; save registers
+	PUSH	DE
+	PUSH	HL
+	LD	E,A		; character to print in E
+	LD	C,$02		; BDOS function to output a character
+	CALL	BDOS		; do it
+	POP	HL		; restore registers
+	POP	DE
+	POP	BC
+	RET
+;
+PRTDOT:
+;
+	; shortcut to print a dot preserving all regs
+	PUSH	AF		; save af
+	LD	A,'.'		; load dot char
+	CALL	PRTCHR		; print it
+	POP	AF		; restore af
+	RET			; done
+;
+PRTCR:
+;
+	; shortcut to print a carriage return preserving all regs
+	PUSH	AF		; save af
+	LD	A,13		; load CR value
+	CALL	PRTCHR		; print it
+	POP	AF		; restore af
+	RET			; done
+;
+; Print a zero terminated string at (DE) without destroying any registers
+;
+PRTSTR:
+	PUSH	DE
+;
+PRTSTR1:
+	LD	A,(DE)		; get next char
+	OR	A
+	JR	Z,PRTSTR2
+	CALL	PRTCHR
+	INC	DE
+	JR	PRTSTR1
+;
+PRTSTR2:
+	POP	DE		; restore registers
+	RET
+;
+; Print the value in A in hex without destroying any registers
+;
+PRTHEX:
+	PUSH	AF		; save AF
+	PUSH	DE		; save DE
+	CALL	HEXASCII	; convert value in A to hex chars in DE
+	LD	A,D		; get the high order hex char
+	CALL	PRTCHR		; print it
+	LD	A,E		; get the low order hex char
+	CALL	PRTCHR		; print it
+	POP	DE		; restore DE
+	POP	AF		; restore AF
+	RET			; done
+;
+; print the hex word value in bc
+;
+PRTHEXWORD:
+	PUSH	AF
+	LD	A,B
+	CALL	PRTHEX
+	LD	A,C
+	CALL	PRTHEX
+	POP	AF
+	RET
+;
+; print the hex dword value in de:hl
+;
+PRTHEX32:
+	PUSH	BC
+	PUSH	DE
+	POP	BC
+	CALL	PRTHEXWORD
+	PUSH	HL
+	POP	BC
+	CALL	PRTHEXWORD
+	POP	BC
+	RET
+;
+; Convert binary value in A to ascii hex characters in DE
+;
+HEXASCII:
+	LD	D,A		; save A in D
+	CALL	HEXCONV		; convert low nibble of A to hex
+	LD	E,A		; save it in E
+	LD	A,D		; get original value back
+	RLCA			; rotate high order nibble to low bits
+	RLCA
+	RLCA
+	RLCA
+	CALL	HEXCONV		; convert nibble
+	LD	D,A		; save it in D
+	RET			; done
+
+;
+; Convert low nibble of A to ascii hex
+;
+HEXCONV:
+	AND	$0F	     	; low nibble only
+	ADD	A,$90
+	DAA
+	ADC	A,$40
+	DAA
+	RET
+
+;
+; Print value of A or HL in decimal with leading zero suppression
+; Use prtdecb for A or prtdecw for HL
+;
+PRTDECB:
+	PUSH	HL
+	LD	H,0
+	LD	L,A
+	CALL	PRTDECW		; print it
+	POP	HL
+	RET
+;
+PRTDECW:
+	PUSH	AF
+	PUSH	BC
+	PUSH	DE
+	PUSH	HL
+	CALL	PRTDEC0
+	POP	HL
+	POP	DE
+	POP	BC
+	POP	AF
+	RET
+;
+PRTDEC0:
+	LD	E,'0'
+	LD	BC,-10000
+	CALL	PRTDEC1
+	LD	BC,-1000
+	CALL	PRTDEC1
+	LD	BC,-100
+	CALL	PRTDEC1
+	LD	C,-10
+	CALL	PRTDEC1
+	LD	E,0
+	LD	C,-1
+PRTDEC1:
+	LD	A,'0' - 1
+PRTDEC2:
+	INC	A
+	ADD	HL,BC
+	JR	C,PRTDEC2
+	SBC	HL,BC
+	CP	E
+	RET	Z
+	LD	E,0
+	CALL	PRTCHR
+	RET
+;
+; Start a new line
+;
+CRLF2:
+	CALL	CRLF		; two of them
+CRLF:
+	PUSH	AF		; preserve AF
+	LD	A,13		; <CR>
+	CALL	PRTCHR		; print it
+	LD	A,10		; <LF>
+	CALL	PRTCHR		; print it
+	POP	AF		; restore AF
+	RET