added panic screen, added versioning mechanism proposal

c64/basic/init/initmsg_real.s

@@ -0,0 +1,95 @@
+
+// Routine is too long to fit in the original location
+
+
+initmsg_real:
+
+#if CONFIG_BANNER_SIMPLE
+
+	lda #<startup_banner
+	ldy #>startup_banner
+	jsr STROUT
+
+	ldx #$02
+	ldy #$02
+	jsr plot_set
+
+	lda #<rom_revision_basic_string
+	ldy #>rom_revision_basic_string
+	jsr STROUT
+
+	ldx #$04
+	ldy #$02
+	jsr plot_set
+
+#if CONFIG_SHOW_PAL_NTSC
+	jsr print_pal_ntsc
+#endif
+
+	jsr initmsg_bytes_free
+
+	ldx #$07
+	ldy #$00
+	jmp plot_set
+
+#elif CONFIG_BANNER_FANCY
+	
+	lda #<rainbow_logo
+	ldy #>rainbow_logo
+	jsr STROUT
+
+	ldx #$01
+	ldy #$0A
+	jsr plot_set
+
+	lda #<startup_banner
+	ldy #>startup_banner
+	jsr STROUT
+
+	ldx #$03
+	ldy #$0A
+	jsr plot_set
+
+	lda #<pre_revision_string
+	ldy #>pre_revision_string
+	jsr STROUT
+
+	lda #<rom_revision_basic_string
+	ldy #>rom_revision_basic_string
+	jsr STROUT
+
+	ldx #$05
+	ldy #$00
+	jsr plot_set
+
+#if CONFIG_SHOW_PAL_NTSC
+	jsr print_pal_ntsc
+#endif
+
+	jsr initmsg_bytes_free
+
+	ldx #$07
+	ldy #$00
+	jmp plot_set
+
+#elif CONFIG_BANNER_VARIANT && CONFIG_VARIANT_MEGA_65
+
+	lda #<startup_banner
+	ldy #>startup_banner
+	jsr STROUT
+
+	lda #<rom_revision_basic_string
+	ldy #>rom_revision_basic_string
+	jsr STROUT
+
+	ldx #$03
+	ldy #$12
+	jsr plot_set
+
+	jsr initmsg_bytes_free
+
+	ldx #$05
+	ldy #$00
+	jmp plot_set
+
+#endif