Speaker updates

CPU MHz is now rounded at hbios initialization.

Source/Doc/Architecture.md

@@ -1476,7 +1476,7 @@ This function applies the previously specified volume and period by
 programming the sound chip with the appropriate values.  The values
 are applied to the specified channel of the chip.
 
-For example, to play a specific note on Audio Device UNit 0,
+For example, to play a specific note on Audio Device Unit 0,
 the following HBIOS calls would need to be made:
 
 ```

Source/HBIOS/spk.asm

@@ -160,14 +160,7 @@ SP_QUERY_DEV:
 ;======================================================================
 ;
 SP_SETTBL:
-	LD	HL,(CB_CPUKHZ)		; GET CPU SPEED.
-	LD	DE,1000			; CONVERT TO MHZ
-	CALL	DIV16
-;
-	LD	DE,900			; IF MHZ IS WITHIN 10% OF
-	SBC	HL,DE			; NEXT INTEGER INCREMENT
-	JP	M,SP_SETTBL3		; THEN BUMP UP. I.E. 9.928MHZ
-	INC	C			; BECOMES 10MHZ
+	LD	BC,(CB_CPUMHZ)		; GET MHZ CPU SPEED (IN C).
 ;	 
 SP_SETTBL3:
 	LD	B,SP_NOTCNT		; SET NUMBER OF NOTES TO