Frodo4/Docs/kernal.html

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<TITLE>Kernal extensions</TITLE>
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<H1>Extensions of the included Kernal ROM</H1>

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The included "Kernal ROM" has some improvements/changes as compared to
an original C64 kernal:

<UL>
<LI>RAM at $fd30-$fd4f is not overwritten during reset
<LI>Default device address is 8
<LI>Default secondary address is 1
<LI>Start and end address are displayed when loading
<LI>C= key stops scrolling
<LI>Faster key repeat
<LI>Tape and RS232 routines removed
<LI>Key commands:
<UL>
<LI>F1       : <KBD>&lt;CLS&gt; LIST &lt;CR&gt;</KBD>
<LI>F2       : <KBD>SYS32768 &lt;CR&gt;</KBD>
<LI>F3       : <KBD>RUN &lt;CR&gt;</KBD>
<LI>F4       : <KBD>SYS4096*12</KBD>
<LI>F5       : <KBD>LOAD"</KBD>
<LI>F6       : <KBD>SAVE"</KBD>
<LI>F7       : <KBD>LOAD"$",8 &lt;CR&gt;</KBD>
<LI>F8       : <KBD>CLOSE7:OPEN7,8,15,"</KBD>
<LI>SHIFT-Run: <KBD>LOAD":*",8,1:RUN &lt;CR&gt;</KBD>
<LI>CTRL-D   : Display directory of drive 8
<LI>CTRL-K   : Read error channel of drive 8
<LI>CTRL-L   : Load Basic program from RAM disk
<LI>CTRL-O   : UNNEW
<LI>CTRL-U   : Modifies the SAVE routine so that the RAM at $a000-$bfff can be <KBD>SAVE</KBD>d
<LI>CTRL-V   : Swap Basic program with RAM disk
<LI>CTRL-W   : Save Basic program to RAM disk
<LI>CTRL-X   : Continue LIST command
<LI>CTRL-Z   : Continue LIST command 50 lines earlier
<LI>CTRL-F1  : Swap screen with buffer 1
<LI>CTRL-F3  : Swap screen with buffer 2
<LI>CTRL-F5  : Swap screen with buffer 3
<LI>CTRL-F7  : Swap screen with buffer 4
<LI>CBM-F1   : Write screen to buffer 3
<LI>CBM-F3   : Write screen to buffer 4
<LI>CBM-F5   : Get screen from buffer 3
<LI>CBM-F7   : Get screen from buffer 4
</UL>
<LI>Startup message shows "BASIC X2"
</UL>

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</HTML>
1	<HTML>
2	<HEAD>
3	<TITLE>Kernal extensions</TITLE>
4	</HEAD>
5	<BODY>
6
7	<H1>Extensions of the included Kernal ROM</H1>
8
9	<HR>
10
11	The included "Kernal ROM" has some improvements/changes as compared to
12	an original C64 kernal:
13
14	<UL>
15	<LI>RAM at $fd30-$fd4f is not overwritten during reset
16	<LI>Default device address is 8
17	<LI>Default secondary address is 1
18	<LI>Start and end address are displayed when loading
19	<LI>C= key stops scrolling
20	<LI>Faster key repeat
21	<LI>Tape and RS232 routines removed
22	<LI>Key commands:
23	<UL>
24	<LI>F1 : <KBD><CLS> LIST <CR></KBD>
25	<LI>F2 : <KBD>SYS32768 <CR></KBD>
26	<LI>F3 : <KBD>RUN <CR></KBD>
27	<LI>F4 : <KBD>SYS4096*12</KBD>
28	<LI>F5 : <KBD>LOAD"</KBD>
29	<LI>F6 : <KBD>SAVE"</KBD>
30	<LI>F7 : <KBD>LOAD"$",8 <CR></KBD>
31	<LI>F8 : <KBD>CLOSE7:OPEN7,8,15,"</KBD>
32	<LI>SHIFT-Run: <KBD>LOAD":*",8,1:RUN <CR></KBD>
33	<LI>CTRL-D : Display directory of drive 8
34	<LI>CTRL-K : Read error channel of drive 8
35	<LI>CTRL-L : Load Basic program from RAM disk
36	<LI>CTRL-O : UNNEW
37	<LI>CTRL-U : Modifies the SAVE routine so that the RAM at $a000-$bfff can be <KBD>SAVE</KBD>d
38	<LI>CTRL-V : Swap Basic program with RAM disk
39	<LI>CTRL-W : Save Basic program to RAM disk
40	<LI>CTRL-X : Continue LIST command
41	<LI>CTRL-Z : Continue LIST command 50 lines earlier
42	<LI>CTRL-F1 : Swap screen with buffer 1
43	<LI>CTRL-F3 : Swap screen with buffer 2
44	<LI>CTRL-F5 : Swap screen with buffer 3
45	<LI>CTRL-F7 : Swap screen with buffer 4
46	<LI>CBM-F1 : Write screen to buffer 3
47	<LI>CBM-F3 : Write screen to buffer 4
48	<LI>CBM-F5 : Get screen from buffer 3
49	<LI>CBM-F7 : Get screen from buffer 4
50	</UL>
51	<LI>Startup message shows "BASIC X2"
52	</UL>
53
54	</BODY>
55	</HTML>
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