started work on setting text mode

src/aliases/,aliases_cpu.s

@@ -261,6 +261,13 @@
 	.byte $22, mod(arg, $100), floor(arg / $100)
 }
 
+.pseudocommand jsr_ind_x addr
+{
+	.var arg = addr.getValue()
+	.byte $23, mod(arg, $100), floor(arg / $100)
+}
+
+
 #endif
 
 

src/aliases/,aliases_hardware.s

@@ -70,13 +70,6 @@
 	.label VIC_XSCAN    = $D02F // C128 only
 	.label VIC_CLKRATE  = $D030 // C128 only
 
-#endif
-
-#if CONFIG_MB_MEGA_65
-
-	.label VIC_KEY      = $D02F
-	.label VIC_XPOS     = $D050
-
 #endif
 
 	// SID registers

src/aliases/,aliases_hardware_m65.s

@@ -0,0 +1,24 @@
+
+//
+// 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

src/aliases/,aliases_ram_lowmem_m65.s

@@ -24,8 +24,15 @@
 	// Pages 4-7 - reused screen memory
 	//
 
-	                               // $400-$57F -- UNUSED -- reserved for BASIC
-	                               // $580-$5FF -- UNUSED -- reserved for KERNAL
+	// $400-$57F - reserved for BASIC
 
+	                               // $400-$57F  -- UNUSED -- reserved for BASIC
+
+	// $580-$5FF - reserved for KERNAL
+
+	.label M65_SCRMODE      = $580 //            0 = 40x25, 1 = 80x25, 2 = 80x50, (-- NOT IMPLEMENTED -- add $80 for graphics modes)
+	.label M65_SCRTXTBASE   = $581 // $581-$584  base address of the screen memory for text modes
+	.label M65_SCRGFXBASE   = $585 // $585-$588  -- NOT IMPLEMENTED -- base address of the screen memory for graphics modes
+	                               // $589-$5FF  -- UNUSED --
 	.label M65_RS232_INBUF  = $600 // $600-$6FF  -- reserved for RS-232 input buffer --
 	.label M65_RS232_OUTBUF = $700 // $700-$7FF  -- reserved for RS-232 output buffer --