@@ 1080,20 1080,21 @@ Registers: AF
<h1 id="msx2pbios">MSX 2+ BIOS Entries</h1>
-<h3 id="RDBTST">RDBTST</h3>
+<h3 id="RDRES"><span id="RDBTST">RDRES</span></h3>
<pre>Address : #017A
-Function : Read value of I/O poort #F4
+Function : Read value of I/O port #F4
Input : none
Output : A = value read
Registers: AF
</pre>
-<h3 id="WRBTST">WRBTST</h3>
+<h3 id="WRRES"><span id="WRBTST">WRRES</span></h3>
<pre>Address : #017D
-Function : Write value to I/O poort #F4
+Function : Write value to I/O port #F4
Input : A = value to write
- Bit 7 shows the MSX 2+ startup screen when reset, otherwise it's skipped.
+ When bit 7 is reset it shows the MSX 2+ startup screen on boot,
+ and counts and initialises the RAM.
Output : none
Registers: none
</pre>