8 files changed, 23 insertions, 23 deletions
diff --git a/home/hidden_objects.asm b/home/hidden_objects.asm
index eccf1c8f..6e7d980a 100644
--- a/home/hidden_objects.asm
+++ b/home/hidden_objects.asm
@@ -5,7 +5,7 @@ CheckForHiddenObjectOrBookshelfOrCardKeyDoor::
 	ldh a, [hLoadedROMBank]
 	push af
 	ldh a, [hJoyHeld]
-	bit 0, a ; A button
+	bit BIT_A_BUTTON, a
 	jr z, .nothingFound
 ; A button is pressed
 	ld a, BANK(CheckForHiddenObject)
diff --git a/home/list_menu.asm b/home/list_menu.asm
index d6bf43b2..77e75012 100644
--- a/home/list_menu.asm
+++ b/home/list_menu.asm
@@ -84,7 +84,7 @@ DisplayListMenuIDLoop::
 	push af
 	call PlaceMenuCursor
 	pop af
-	bit 0, a ; was the A button pressed?
+	bit BIT_A_BUTTON, a
 	jp z, .checkOtherKeys
 .buttonAPressed
 	ld a, [wCurrentMenuItem]
@@ -168,12 +168,12 @@ DisplayListMenuIDLoop::
 	res 6, [hl] ; turn on letter printing delay
 	jp BankswitchBack
 .checkOtherKeys ; check B, SELECT, Up, and Down keys
-	bit 1, a ; was the B button pressed?
+	bit BIT_B_BUTTON, a
 	jp nz, ExitListMenu ; if so, exit the menu
-	bit 2, a ; was the select button pressed?
+	bit BIT_SELECT, a
 	jp nz, HandleItemListSwapping ; if so, allow the player to swap menu entries
 	ld b, a
-	bit 7, b ; was Down pressed?
+	bit BIT_D_DOWN, b
 	ld hl, wListScrollOffset
 	jr z, .upPressed
 .downPressed
@@ -220,13 +220,13 @@ DisplayChooseQuantityMenu::
 .waitForKeyPressLoop
 	call JoypadLowSensitivity
 	ldh a, [hJoyPressed] ; newly pressed buttons
-	bit 0, a ; was the A button pressed?
+	bit BIT_A_BUTTON, a
 	jp nz, .buttonAPressed
-	bit 1, a ; was the B button pressed?
+	bit BIT_B_BUTTON, a
 	jp nz, .buttonBPressed
-	bit 6, a ; was Up pressed?
+	bit BIT_D_UP, a
 	jr nz, .incrementQuantity
-	bit 7, a ; was Down pressed?
+	bit BIT_D_DOWN, a
 	jr nz, .decrementQuantity
 	jr .waitForKeyPressLoop
 .incrementQuantity
diff --git a/home/overworld.asm b/home/overworld.asm
index eb6f2ddb..74c97cb7 100644
--- a/home/overworld.asm
+++ b/home/overworld.asm
@@ -72,14 +72,14 @@ OverworldLoopLessDelay::
 .notSimulating
 	ldh a, [hJoyPressed]
 .checkIfStartIsPressed
-	bit 3, a ; start button
+	bit BIT_START, a
 	jr z, .startButtonNotPressed
 ; if START is pressed
 	xor a ; TEXT_START_MENU
 	ldh [hSpriteIndexOrTextID], a
 	jp .displayDialogue
 .startButtonNotPressed
-	bit 0, a ; A button
+	bit BIT_A_BUTTON, a
 	jp z, .checkIfDownButtonIsPressed
 ; if A is pressed
 	ld a, [wd730]
@@ -146,7 +146,7 @@ OverworldLoopLessDelay::
 
 .checkIfDownButtonIsPressed
 	ldh a, [hJoyHeld] ; current joypad state
-	bit 7, a ; down button
+	bit BIT_D_DOWN, a
 	jr z, .checkIfUpButtonIsPressed
 	ld a, 1
 	ld [wSpritePlayerStateData1YStepVector], a
@@ -154,7 +154,7 @@ OverworldLoopLessDelay::
 	jr .handleDirectionButtonPress
 
 .checkIfUpButtonIsPressed
-	bit 6, a ; up button
+	bit BIT_D_UP, a
 	jr z, .checkIfLeftButtonIsPressed
 	ld a, -1
 	ld [wSpritePlayerStateData1YStepVector], a
@@ -162,7 +162,7 @@ OverworldLoopLessDelay::
 	jr .handleDirectionButtonPress
 
 .checkIfLeftButtonIsPressed
-	bit 5, a ; left button
+	bit BIT_D_LEFT, a
 	jr z, .checkIfRightButtonIsPressed
 	ld a, -1
 	ld [wSpritePlayerStateData1XStepVector], a
@@ -170,7 +170,7 @@ OverworldLoopLessDelay::
 	jr .handleDirectionButtonPress
 
 .checkIfRightButtonIsPressed
-	bit 4, a ; right button
+	bit BIT_D_RIGHT, a
 	jr z, .noDirectionButtonsPressed
 	ld a, 1
 	ld [wSpritePlayerStateData1XStepVector], a
diff --git a/home/pokemon.asm b/home/pokemon.asm
index 4e6e080b..3e63de35 100644
--- a/home/pokemon.asm
+++ b/home/pokemon.asm
@@ -274,7 +274,7 @@ HandlePartyMenuInput::
 	scf
 	ret
 .swappingPokemon
-	bit 1, b ; was the B button pressed?
+	bit BIT_B_BUTTON, b
 	jr z, .handleSwap ; if not, handle swapping the pokemon
 .cancelSwap ; if the B button was pressed
 	farcall ErasePartyMenuCursors
diff --git a/home/print_text.asm b/home/print_text.asm
index 049ddfb4..962ae519 100644
--- a/home/print_text.asm
+++ b/home/print_text.asm
@@ -25,11 +25,11 @@ PrintLetterDelay::
 	call Joypad
 	ldh a, [hJoyHeld]
 .checkAButton
-	bit 0, a ; is the A button pressed?
+	bit BIT_A_BUTTON, a
 	jr z, .checkBButton
 	jr .endWait
 .checkBButton
-	bit 1, a ; is the B button pressed?
+	bit BIT_B_BUTTON, a
 	jr z, .buttonsNotPressed
 .endWait
 	call DelayFrame
diff --git a/home/start_menu.asm b/home/start_menu.asm
index 5b29f67a..ed3d9470 100644
--- a/home/start_menu.asm
+++ b/home/start_menu.asm
@@ -15,7 +15,7 @@ RedisplayStartMenu::
 	call HandleMenuInput
 	ld b, a
 .checkIfUpPressed
-	bit 6, a ; was Up pressed?
+	bit BIT_D_UP, a
 	jr z, .checkIfDownPressed
 	ld a, [wCurrentMenuItem] ; menu selection
 	and a
@@ -54,7 +54,7 @@ RedisplayStartMenu::
 	ld a, [wCurrentMenuItem]
 	ld [wBattleAndStartSavedMenuItem], a ; save current menu selection
 	ld a, b
-	and %00001010 ; was the Start button or B button pressed?
+	and B_BUTTON | START ; was the Start button or B button pressed?
 	jp nz, CloseStartMenu
 	call SaveScreenTilesToBuffer2 ; copy background from wTileMap to wTileMapBackup2
 	CheckEvent EVENT_GOT_POKEDEX
@@ -79,7 +79,7 @@ RedisplayStartMenu::
 CloseStartMenu::
 	call Joypad
 	ldh a, [hJoyPressed]
-	bit 0, a ; was A button newly pressed?
+	bit BIT_A_BUTTON, a
 	jr nz, CloseStartMenu
 	call LoadTextBoxTilePatterns
 	jp CloseTextDisplay
diff --git a/home/text_script.asm b/home/text_script.asm
index a6881dc5..39bc3f5b 100644
--- a/home/text_script.asm
+++ b/home/text_script.asm
@@ -98,7 +98,7 @@ AfterDisplayingTextID::
 HoldTextDisplayOpen::
 	call Joypad
 	ldh a, [hJoyHeld]
-	bit 0, a ; is the A button being pressed?
+	bit BIT_A_BUTTON, a
 	jr nz, HoldTextDisplayOpen
 
 CloseTextDisplay::
diff --git a/home/window.asm b/home/window.asm
index 0182bdd3..45b207a8 100644
--- a/home/window.asm
+++ b/home/window.asm
@@ -50,7 +50,7 @@ HandleMenuInput_::
 	ld [wCheckFor180DegreeTurn], a
 	ldh a, [hJoy5]
 	ld b, a
-	bit 6, a ; pressed Up key?
+	bit BIT_D_UP, a
 	jr z, .checkIfDownPressed
 .upPressed
 	ld a, [wCurrentMenuItem] ; selected menu item