[Maintenance] Fix the function name format of CDG/CD2 functions

No leading underscore for functions with Pascal calling convention, but
we do have one for all variables, because it's not worth it to put
keywords in front of everything for no reason.
Seemed to have forgotten this rule in 2017?

Part of P0030, funded by zorg.

th03/formats/cdg_freeall.asm

@@ -1,16 +1,16 @@
 ; Frees the CDG images in all slots.
 
 ; void cdg_freeall(void);
-public _cdg_freeall
-_cdg_freeall	proc near
+public cdg_freeall
+cdg_freeall	proc near
 	push	bp
 	mov	bp, sp
 	push	si
 	xor	si, si
 	jmp	short @@done?
 
 @@loop:
-	call	_cdg_free pascal, si
+	call	cdg_free pascal, si
 	inc	si
 
 @@done?:
@@ -19,4 +19,4 @@ _cdg_freeall	proc near
 	pop	si
 	pop	bp
 	retn
-_cdg_freeall	endp
+cdg_freeall	endp

th03/formats/cdg_load.asm

@@ -4,7 +4,7 @@
 ; Loads the [n]th image of the CDG file [fn] into [slot].
 
 ; void pascal cdg_load_single_forcealpha(int slot, const char *fn, int n)
-_cdg_load_single_forcealpha	proc far
+cdg_load_single_forcealpha	proc far
 
 @@image_size	= dword	ptr -4
 @@n         	=  word ptr  6
@@ -16,7 +16,7 @@ _cdg_load_single_forcealpha	proc far
 	push	di
 	mov	di, [bp+@@slot]
 	push	di
-	nopcall	_cdg_free
+	nopcall	cdg_free
 	mov	ax, di
 	shl	ax, 4
 	add	ax, offset _cdg_slots
@@ -59,14 +59,14 @@ _cdg_load_single_forcealpha	proc far
 	pop	si
 	leave
 	retf	8
-_cdg_load_single_forcealpha	endp
+cdg_load_single_forcealpha	endp
 
 
 ; Loads the [n]th image of the CDG file [fn] into [slot], skipping the alpha
 ; plane.
 
 ; void pascal cdg_load_single_noalpha(int slot, const char *fn, int n)
-_cdg_load_single_noalpha	proc far
+cdg_load_single_noalpha	proc far
 
 @@image_size	= dword	ptr -4
 @@n         	=  word ptr  6
@@ -78,7 +78,7 @@ _cdg_load_single_noalpha	proc far
 	push	di
 	mov	di, [bp+@@slot]
 	push	di
-	nopcall	_cdg_free
+	nopcall	cdg_free
 	mov	ax, di
 	shl	ax, 4
 	add	ax, offset _cdg_slots
@@ -119,14 +119,14 @@ _cdg_load_single_noalpha	proc far
 	pop	si
 	leave
 	retf	8
-_cdg_load_single_noalpha	endp
+cdg_load_single_noalpha	endp
 
 
 ; Loads all images of the CDG file [fn], starting at [slot_first] and
 ; incrementing the slot number for every further image.
 
 ; void pascal cdg_load_all(int slot_first, const char *fn);
-_cdg_load_all	proc far
+cdg_load_all	proc far
 
 @@i         	=  word ptr -2
 @@fn        	= dword	ptr  6
@@ -138,7 +138,7 @@ _cdg_load_all	proc far
 	pushd	[bp+@@fn]
 	call	file_ropen
 	push	[bp+@@slot_first]
-	nopcall	_cdg_free
+	nopcall	cdg_free
 	mov	ax, [bp+@@slot_first]
 	shl	ax, 4
 	add	ax, offset _cdg_slots
@@ -155,7 +155,7 @@ _cdg_load_all	proc far
 	mov	ax, [bp+@@slot_first]
 	add	ax, [bp+@@i]
 	push	ax
-	nopcall	_cdg_free
+	nopcall	cdg_free
 	inc	[bp+@@i]
 
 @@free_loop:
@@ -223,15 +223,15 @@ _cdg_load_all	proc far
 	pop	si
 	leave
 	retf	6
-_cdg_load_all	endp
+cdg_load_all	endp
 
 
 ; Loads all images of the CDG file [fn], disregarding their alpha planes,
 ; starting at [slot_first] and incrementing the slot number for every further
 ; image.
 
 ; void pascal cdg_load_all_noalpha(int slot_first, const char *fn);
-_cdg_load_all_noalpha	proc far
+cdg_load_all_noalpha	proc far
 
 @@fn        	= dword	ptr  6
 @@slot_first	=  word ptr  10
@@ -241,17 +241,17 @@ _cdg_load_all_noalpha	proc far
 	mov	cdg_noalpha, 1
 	push	[bp+@@slot_first]
 	pushd	[bp+@@fn]
-	call	_cdg_load_all
+	call	cdg_load_all
 	mov	cdg_noalpha, 0
 	pop	bp
 	retf	6
-_cdg_load_all_noalpha	endp
+cdg_load_all_noalpha	endp
 
 
 ; Frees the CDG image in the given [slot].
 
 ; void cdg_free(int slot);
-_cdg_free	proc far
+cdg_free	proc far
 
 @@slot		= word ptr  6
 
@@ -289,4 +289,4 @@ _cdg_free	proc far
 	pop	si
 	pop	bp
 	retf	2
-_cdg_free	endp
+cdg_free	endp

th03/formats/cdg_put.asm

@@ -1,8 +1,8 @@
 ; Displays the CDG image in the given [slot] at (⌊x/8⌋*8, y).
 
 ; void pascal cdg_put(int x, int y, int slot);
-public _cdg_put
-_cdg_put proc far
+public cdg_put
+cdg_put proc far
 
 @@slot	= word ptr  6
 @@y   	= word ptr  8
@@ -95,5 +95,5 @@ _cdg_put proc far
 	pop	si
 	pop	bp
 	retf	6
-_cdg_put endp
+cdg_put endp
 	align 2

th03/formats/cdg_put_dissolve.asm

@@ -3,8 +3,8 @@
 ; (mod 8, 0 = none, 7 = full) on the E bitplane.
 
 ; void pascal cdg_put_dissolve_e(int x_center, int y_center, int slot, int strength);
-public _cdg_put_dissolve_e
-_cdg_put_dissolve_e	proc near
+public cdg_put_dissolve_e
+cdg_put_dissolve_e	proc near
 
 @@h       	= word ptr -6
 @@w       	= word ptr -4
@@ -41,11 +41,11 @@ _cdg_put_dissolve_e	proc near
 	jnz	short @@put_alpha
 
 @@put_noalpha:
-	call	_cdg_put_noalpha pascal, [bp+@@x_center], [bp+@@y_center], [bp+@@slot]
+	call	cdg_put_noalpha pascal, [bp+@@x_center], [bp+@@y_center], [bp+@@slot]
 	jmp	short @@dissolve_prepare
 
 @@put_alpha:
-	call	_cdg_put pascal, [bp+@@x_center], [bp+@@y_center], [bp+@@slot]
+	call	cdg_put pascal, [bp+@@x_center], [bp+@@y_center], [bp+@@slot]
 
 @@dissolve_prepare:
 	and	[bp+@@strength], 7
@@ -102,4 +102,4 @@ _cdg_put_dissolve_e	proc near
 	pop	si
 	leave
 	retn	8
-_cdg_put_dissolve_e	endp
+cdg_put_dissolve_e	endp

th03/formats/cdg_put_hflip.asm

@@ -2,7 +2,7 @@
 ; horizontally.
 
 ; void DEFCONV cdg_put_hflip(int x, int y, int slot);
-proc_defconv _cdg_put_hflip
+proc_defconv cdg_put_hflip
 
 @@slot	= word ptr  6
 @@y   	= word ptr  8

th03/formats/cdg_put_noalpha.asm

@@ -2,8 +2,8 @@
 ; alpha plane.
 
 ; void pascal cdg_put_noalpha(int x, int y, int slot);
-public _cdg_put_noalpha
-_cdg_put_noalpha	proc far
+public cdg_put_noalpha
+cdg_put_noalpha	proc far
 
 @@slot	= word ptr  6
 @@y   	= word ptr  8
@@ -65,5 +65,5 @@ _cdg_put_noalpha	proc far
 	pop	si
 	pop	bp
 	retf	6
-_cdg_put_noalpha	endp
+cdg_put_noalpha	endp
 	align	2

th03/formats/cdg_unput_upwards.asm

@@ -3,9 +3,9 @@
 ; at the bottom of that image, as well as the one line immediately below, from
 ; the VRAM's E plane.
 
-; void cdg_unput_for_upwards_motion_e(int x, int y, int slot);
-public _cdg_unput_for_upwards_motion_e
-_cdg_unput_for_upwards_motion_e	proc near
+; void cdg_unput_for_upwards_motion_e(int x_center, int y_center, int slot);
+public cdg_unput_for_upwards_motion_e
+cdg_unput_for_upwards_motion_e	proc near
 
 @@h	      	= word ptr -4
 @@w       	= word ptr -2
@@ -65,4 +65,4 @@ _cdg_unput_for_upwards_motion_e	proc near
 	pop	si
 	leave
 	retn	6
-_cdg_unput_for_upwards_motion_e	endp
+cdg_unput_for_upwards_motion_e	endp