Begin ZX Spectrum register definitions.

share/lib/zx-spectrum-next.s

@@ -0,0 +1,51 @@
+.include "zx-spectrum.s"
+
+.visibility public
+
+NEXTREG_MACHINE_ID = $00
+    NEXTREG_MACHINE_ID_EMULATOR = $08
+    NEXTREG_MACHINE_ID_NEXT = $0a
+    NEXTREG_MACHINE_ID_NEXT_ANTI_BRICK = $fa
+
+NEXTREG_CORE_VERSION = $01
+    NEXTREG_CORE_VERSION_MINOR_MASK = $0f
+    NEXTREG_CORE_VERSION_MAJOR_MASK = $f0
+
+NEXTREG_RESET = $02
+    NEXTREG_RESET_SOFT = $01
+    NEXTREG_RESET_HARD = $02
+    NEXTREG_RESET_EXPANSION = $80
+
+NEXTREG_MACHINE_TYPE = $03
+    NEXTREG_MACHINE_TYPE_MASK = $07
+        NEXTREG_MACHINE_TYPE_CONFIGURATION = $00
+        NEXTREG_MACHINE_TYPE_48K = $01
+        NEXTREG_MACHINE_TYPE_128K = $02
+        NEXTREG_MACHINE_TYPE_PLUS3_NEXT = $03
+        NEXTREG_MACHINE_TYPE_PENT = $04
+    NEXTREG_MACHINE_TYPE_DISPLAY_TIMING_USER_LOCK = $08
+    NEXTREG_MACHINE_TYPE_DISPLAY_TIMING_MASK = $70
+    NEXTREG_MACHINE_TYPE_DISPLAY_TIMING(n) = (n & $7) << 4
+        ; Uses the same values as NEXTREG_MACHINE_TYPE
+    NEXTREG_MACHIEN_TYPE_DISPLAY_TIMING_CHANGE_ENABLE = $80
+
+NEXTREG_CONFIGURATION_MAPPING = $04
+    NEXTREG_CONFIGURATION_MAPPING_MASK = $1f
+
+NEXTREG_PERIPHERAL_SETTINGS_1 = $05
+    NEXTREG_PERIPHERAL_SETTINGS_1_SCANDOUBLER = $01
+    NEXTREG_PERIPHERAL_SETTINGS_1_VERTICAL_FERQUENCY = $04
+        NEXTREG_PERIPHERAL_SETTINGS_1_VERTICAL_FERQUENCY_50HZ = $0
+        NEXTREG_PERIPHERAL_SETTINGS_1_VERTICAL_FERQUENCY_60HZ = NEXTREG_PERIPHERAL_SETTINGS_1_VERTICAL_FERQUENCY
+    NEXTREG_PERIPHERAL_SETTINGS_1_JOYSTICK_1_MASK = $c8
+    NEXTREG_PERIPHERAL_SETTINGS_1_JOYSTICK_2_MASK = $32
+        NEXTREG_PERIPHERAL_SETTINGS_1_JOYSTICK_SINCLAIR_2 = $0
+        NEXTREG_PERIPHERAL_SETTINGS_1_JOYSTICK_KEMPSTON_2 = $1
+        NEXTREG_PERIPHERAL_SETTINGS_1_JOYSTICK_KEMPSTON_1 = $2
+        NEXTREG_PERIPHERAL_SETTINGS_1_JOYSTICK_MEGADRIVE_1 = $3
+        NEXTREG_PERIPHERAL_SETTINGS_1_JOYSTICK_CURSOR = $4
+        NEXTREG_PERIPHERAL_SETTINGS_1_JOYSTICK_MEGADRIVE_2 = $5
+        NEXTREG_PERIPHERAL_SETTINGS_1_JOYSTICK_SINCLAIR_1 = $6
+        NEXTREG_PERIPHERAL_SETTINGS_1_JOYSTICK_KEYJOY = $7
+
+NEXTREG_PERIPHERAL_SETTINGS_2 = $06

share/lib/zx-spectrum.s

@@ -1,6 +1,29 @@
 .target "z80"
 
-.public CLS = $0daf
+.visibility public
 
+SCREEN = $4000
+ATTRIBUTES = $5800
 
+CLS = $0daf
 
+PORT_KEMPSTON_JOYSTICK_1 = $1f
+PORT_KEMPSTON_JOYSTICK_2 = $37
+    PORT_KEMPSTON_JOYSTICK_RIGHT = $01
+    PORT_KEMPSTON_JOYSTICK_LEFT = $02
+    PORT_KEMPSTON_JOYSTICK_DOWN = $04
+    PORT_KEMPSTON_JOYSTICK_UP = $08
+    PORT_KEMPSTON_JOYSTICK_FIRE_1 = $10
+    PORT_KEMPSTON_JOYSTICK_FIRE_2 = $20
+    PORT_KEMPSTON_JOYSTICK_B = $10
+    PORT_KEMPSTON_JOYSTICK_A = $20
+    PORT_KEMPSTON_JOYSTICK_C = $40
+    PORT_KEMPSTON_JOYSTICK_START = $80
+
+PORT_KEMPSTON_MOUSE_X = $fbdf
+PORT_KEMPSTON_MOUSE_Y = $ffdf
+PORT_KEMPSTON_MOUSE_BUTTONS = $fadf
+    PORT_KEMPSTON_MOUSE_BUTTON_LEFT = $01
+    PORT_KEMPSTON_MOUSE_BUTTON_MIDDLE = $02
+    PORT_KEMPSTON_MOUSE_BUTTON_RIGHT = $04
+    PORT_KEMPSTON_MOUSE_BUTTON_SCROLL_WHEEL_MASK = $f0