Add target atari7800

asminc/atari7800_maria.inc

@@ -0,0 +1,39 @@
+; Atari 7800 MARIA read / write registers
+;
+
+; Read registers
+BKGRND := $00
+P0C1   := $01
+P0C2   := $02
+P0C3   := $03
+MWSYNC := $04
+P1C1   := $05
+P1C2   := $06
+P1C3   := $07
+MSTAT  := $08
+P2C1   := $09
+P2C2   := $0A
+P2C3   := $0B
+DPPH   := $0C
+P3C1   := $0D
+P3C2   := $0E
+P3C3   := $0F
+DPPL   := $10
+P4C1   := $11
+P4C2   := $12
+P4C3   := $13
+CHBASE := $14
+P5C1   := $15
+P5C2   := $16
+P5C3   := $17
+OFFSET := $18
+P6C1   := $19
+P6C2   := $1A
+P6C3   := $1B
+CTRL   := $1C
+P7C1   := $1D
+P7C2   := $1E
+P7C3   := $1F
+
+; Write registers
+