Code: Select all
<cheat desc="no hit">
<script state="on">
<action>maincpu.mb@0b78 = c9</action> <!-- bullet -->
<action>maincpu.mb@12a1 = c9</action> <!-- enemy -->
</script>
<script state="off">
<action>maincpu.mb@0b78 = c8</action>
<action>maincpu.mb@12a1 = c8</action>
</script>
</cheat>
<cheat desc="auto fire">
<script state="on">
<action>maincpu.mb@0a50 = 00</action>
</script>
<script state="off">
<action>maincpu.mb@0a50 = a0</action>
</script>
</cheat>
<cheat desc="player speed">
<parameter min="0x01" max="0x05" step="0x01" />
<script state="on">
<action>maincpu.mw@0662 = 2800</action>
<action>maincpu.mq@2800 = 10c10837cdc50006</action>
<action>maincpu.mq@2808 = 000000000000c9f9</action>
<!--
2800 | 06 xx : ld b,$xx
2802 | c5 : push bc
2803 | cd 37 08 : call $0837
2806 | c1 : pop bc
2807 | 10 f9 : djnz $2802
2809 | c9 : ret
-->
</script>
<script state="change">
<action>maincpu.mb@2801 = param</action>
</script>
<script state="off">
<action>maincpu.mw@0662 = 0837</action>
<action>maincpu.mq@2800 = 0000000000000000</action>
<action>maincpu.mq@2808 = 0000000000000000</action>
</script>
</cheat>
<cheat desc="bullet speed">
<parameter>
<item value="0x01">01 (slow)</item>
<item value="0x04">02 </item>
<item value="0x0c">03 (fast)</item>
</parameter>
<script state="change">
<action>maincpu.mb@08c6 = param</action> <!-- speed -->
<action>maincpu.mb@1235 = 02 + param</action> <!-- collision range for flying enemy -->
</script>
<script state="off">
<action>maincpu.mb@08c6 = 04</action>
<action>maincpu.mb@1235 = 06</action>
</script>
</cheat>
<cheat desc="no wait next level">
<script state="on">
<action>maincpu.mb@1626 = 00</action>
</script>
<script state="off">
<action>maincpu.mb@1626 = c0</action>
</script>
</cheat>
<cheat desc="quick boot (test)">
<script state="on">
<action>maincpu.mw@1a9c = 2b18</action> <!-- skip work ram check -->
<action>maincpu.mw@1acc = 2e18</action> <!-- skip video ram check -->
<action>maincpu.mw@1b7d = 0f18</action> <!-- skip rom check -->
<action>maincpu.mb@1bb6 = 00</action> <!-- skip boot sequence in interrupt -->
</script>
<script state="off">
<action>maincpu.mw@1a9c = 200e</action>
<action>maincpu.mw@1acc = 200e</action>
<action>maincpu.mw@1b7d = 2c86</action>
<action>maincpu.mb@1bb6 = 03</action>
</script>
</cheat>
"quick boot" is test code. Aliens appear soon after boot sequence instead of score table screen.