Update firmware/BootSector batch files.

Fix out-of-date comment.

firmware/BootSector/Build.bat

@@ -1,8 +1,5 @@
 @REM Toolchain
-@REM * MSVC     (cl.exe)
-@REM * Acme     (ache.exe)
+@REM * Acme     (acme.exe)
 
 del                 bootsector.bin
 acme.exe            bootsector.a
-cl.exe bin_to_c.cpp /nologo
-       bin_to_c.exe bootsector.bin

firmware/BootSector/Build_Merlin.bat

@@ -1,8 +1,5 @@
 @REM Toolchain
-@REM * MSVC     (cl.exe)
 @REM * Merlin32 (merlin32.exe)
 
 del                 bootsector
 merlin32.exe -V .   bootsector.s
-cl.exe bin_to_c.cpp /nologo
-       bin_to_c.exe bootsector

source/Mockingboard.cpp

@@ -916,7 +916,7 @@ void MockingboardCard::Update(const ULONG executedCycles)
 // Called by:
 // . CpuExecute() every ~1000 cycles @ 1MHz (or ~3 cycles when MODE_STEPPING)
 // . MB_SyncEventCallback() on a TIMER1/2 underflow
-// . MB_Read() / MB_Write() (for both normal & full-speed)
+// . IORead() / IOWrite() (for both normal & full-speed)
 void MockingboardCard::UpdateCycles(ULONG executedCycles)
 {
 	CpuCalcCycles(executedCycles);