Follow the paradigm that _fast functions need not preserve all registers

Author: calc84maniac

src/crt/ipopcnt_fast.src

@@ -4,7 +4,7 @@
 	public	__ipopcnt_fast
 __ipopcnt_fast:
 	; Inlined implementation of __ipopcnt
-	push	hl
+	; Destroys: HL
 	ld	a, l
 	cpl
 	ld	l, a
@@ -46,5 +46,4 @@ __ipopcnt_fast:
 	add	hl, hl
 	cpl
 	adc	a, 9
-	pop	hl
 	ret

src/crt/llpopcnt_fast.src

@@ -3,17 +3,14 @@
 	section	.text
 	public	__llpopcnt_fast
 __llpopcnt_fast:
+	; Destroys: HL, DE
 	call	__lpopcnt_fast
-	push	de
-	push	hl
 	ex	de, hl
 	ld	l, b
 	ld	e, c
 	ld	d, a
 	call	__lpopcnt_fast
 	add	a, d
-	pop	hl
-	pop	de
 	ret
 
 	extern	__lpopcnt_fast

src/crt/lpopcnt_fast.src

@@ -4,7 +4,7 @@
 	public	__lpopcnt_fast
 __lpopcnt_fast:
 	; Inlined implementation of __lpopcnt
-	push	hl
+	; Destroys: HL
 	ld	a, l
 	cpl
 	ld	l, a
@@ -51,5 +51,4 @@ __lpopcnt_fast:
 	add	hl, hl
 	cpl
 	adc	a, 17
-	pop	hl
 	ret

src/crt/spopcnt_fast.src

@@ -4,7 +4,7 @@
 	public	__spopcnt_fast
 __spopcnt_fast:
 	; Inlined implementation of __spopcnt
-	push	hl
+	; Destroys: HL
 	add	hl, hl
 	add	hl, hl
 	add	hl, hl
@@ -37,5 +37,4 @@ __spopcnt_fast:
 	add	hl, hl
 	cpl
 	adc	a, 9
-	pop	hl
 	ret