Remove remaining raw $xxxx values, and replace "+ -1" with "- 1" (supported by rgbds 0.4.0)

engine/menus/display_text_id_init.asm

@@ -43,7 +43,7 @@ DisplayTextIDInit::
 ; the original direction they were facing must be restored after the dialogue is over
 	ld hl, wSpriteStateData1 + $19
 	ld c, $0f
-	ld de, $0010
+	ld de, $10
 .spriteFacingDirectionCopyLoop
 	ld a, [hl]
 	inc h
@@ -55,7 +55,7 @@ DisplayTextIDInit::
 ; loop to force all the sprites in the middle of animation to stand still
 ; (so that they don't like they're frozen mid-step during the dialogue)
 	ld hl, wSpriteStateData1 + 2
-	ld de, $0010
+	ld de, $10
 	ld c, e
 .spriteStandStillLoop
 	ld a, [hl]

engine/menus/save.asm

@@ -702,7 +702,7 @@ ClearSAV:
 
 PadSRAM_FF:
 	ld [MBC1SRamBank], a
-	ld hl, $a000 ; start of SRAM
-	ld bc, $2000 ; size of SRAM
+	ld hl, SRAM_Begin
+	ld bc, SRAM_End - SRAM_Begin
 	ld a, $ff
 	jp FillMemory

engine/menus/start_sub_menus.asm

@@ -491,12 +491,12 @@ DrawTrainerInfo:
 	call CopyData
 	ld hl, TrainerInfoTextBoxTileGraphics ; trainer info text box tile patterns
 	ld de, vChars2 + $770
-	ld bc, $0080
+	ld bc, $80
 	push bc
 	call TrainerInfo_FarCopyData
 	ld hl, BlankLeaderNames
 	ld de, vChars2 + $600
-	ld bc, $0170
+	ld bc, $170
 	call TrainerInfo_FarCopyData
 	pop bc
 	ld hl, BadgeNumbersTileGraphics  ; badge number tile patterns
@@ -504,14 +504,14 @@ DrawTrainerInfo:
 	call TrainerInfo_FarCopyData
 	ld hl, GymLeaderFaceAndBadgeTileGraphics  ; gym leader face and badge tile patterns
 	ld de, vChars2 + $200
-	ld bc, $0400
+	ld bc, $400
 	ld a, $03
 	call FarCopyData2
 	ld hl, TextBoxGraphics
-	ld de, $00d0
+	ld de, $d0
 	add hl, de ; hl = colon tile pattern
 	ld de, vChars1 + $560
-	ld bc, $0010
+	ld bc, $10
 	ld a, $04
 	push bc
 	call FarCopyData2