[BANNEX] update splash deprecate vera 0.3.3/add CPU for HELP (#301)

bannex/help.s

@@ -174,17 +174,35 @@ ym2151:
 
 	jsr printstring
 	.byte "UNKNOWN",13,0
-	bra final
+	bra cpu
 
 ym_isopm:
 	jsr printstring
 	.byte "YM2151 (OPM)",13,0
-	bra final
+	bra cpu
 
 ym_isopp:
 	jsr printstring
 	.byte "YM2164 (OPP)",13,0
 
+cpu:
+	jsr printstring
+	.byte "CPU: 65C",0
+
+	sec
+	.byte $c2, $03 ; SEP #$03, clear carry if 65C816
+	bcc cpu816
+
+cpu02:
+	jsr printstring
+	.byte "02",13,0
+	bra final
+
+cpu816:
+	jsr printstring
+	.byte "816",13,0
+
+
 final:
 	jsr printstring
 	.byte 13,"FOR DOCUMENTATION, SEE",13

bannex/splash.s

@@ -167,12 +167,22 @@ iniend:
 	bne @ok ; assume major version > 0 is fine
 	lda $9f2b
 	cmp #3
-	bcs @ok ; assume version 0.3.x or higher is okay
+	bcc @notok ; assume version < 0.3.x is not okay
+	lda $9f2c
+	cmp #3     ; 0.3.3 is problematic
+	beq @badvera
+	bra @ok
 @notok:
 	stz VERA_CTRL
 	lda #<updatevera
 	ldy #>updatevera
 	jsr strout
+	bra @ok
+@badvera:
+	stz VERA_CTRL
+	lda #<badvera
+	ldy #>badvera
+	jsr strout
 @ok:
 	stz VERA_CTRL
 	plp
@@ -287,3 +297,11 @@ updatevera:
 	.byte "LATER ROMS MAY NOT BOOT WITH THE",13
 	.byte "CURRENT VERA VERSION.",13
 	.byte 13,"USE THE HELP COMMAND FOR FIRMWARE INFO",13,0
+
+badvera:
+	.byte 13,"YOUR VERA'S FIRMWARE VERSION IS KNOWN",13
+	.byte "TO HAVE VISUAL GLITCHES. PLEASE CHECK",13
+	.byte "FOR A VERSION NEWER THAN 0.3.3, OR",13
+	.byte "DOWNGRADE TO VERSION 0.3.2.",13
+	.byte "RELEASES: HTTPS://GITHUB.COM/X16COMMUNITY/VERA-MODULE/RELEASES/",13
+	.byte 13,"USE THE HELP COMMAND FOR FIRMWARE INFO",13,0