started work on setting text mode

src/aliases/,aliases_hardware_m65.s

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+
+//
+// Names of hardware registers
+//
+// See https://github.com/MEGA65/mega65-core/blob/master/iomap.txt
+//
+
+
+#if CONFIG_MB_MEGA_65
+
+	// VIC-IV registers
+
+	.label VIC_KEY      = $D02F
+
+	.label VIC_SCFLAGS  = $D031
+
+	.label VIC_XPOS     = $D050
+
+	.label VIC_SCRNPTR  = $D060 // 4 bytes
+	.label VIC_COLPTR   = $D064 // 2 bytes
+
+	.label VIC_CHARPTR  = $D068 // 3 bytes
+
+#endif