Emulator Cheats

Memory altering cheats for emulators
http://www.mamecheat.co.uk/forums/

[stg] Strike Gunner - S.T.G

http://www.mamecheat.co.uk/forums/viewtopic.php?t=13043

Page 1 of 1

[stg] Strike Gunner - S.T.G

Posted: Fri Nov 12, 2021 9:59 am
by jman

Code: Select all

<cheat desc="no hit">
    <script state="on">
        <action>maincpu.mb@077b9 =       50</action> <!-- object -->
        <action>maincpu.md@07bf2 = 60000082</action> <!-- wall -->
    </script>
    <script state="off">
        <action>maincpu.mb@077b9 =       52</action>
        <action>maincpu.md@07bf2 = 6a0009dc</action>
    </script>
</cheat>

<cheat desc="auto fire">
    <script state="on">
        <action>maincpu.mq@07d80 = 4eb9000210704e71</action>
        <action>maincpu.mq@21070 = 303c000401ae0014</action>
        <action>maincpu.mq@21078 = 4eb9000085c04e75</action>
        <!--
        21070 | 303c 0004      : move.w #$4,D0
        21074 | 01ae 0014      : bclr   D0,($14,a6)
        21078 | 4eb9 0000 85c0 : jsr    $85c0.l
        2107e | 4e75           : rts
        -->
    </script>
    <script state="off">
        <action>maincpu.mq@07d80 = 303c00046100083a</action>
        <action>maincpu.mq@21070 = ffffffffffffffff</action>
        <action>maincpu.mq@21078 = ffffffffffffffff</action>
    </script>
</cheat>

<cheat desc="player speed">
    <parameter>
        <item value="0x02">01 (slow)</item>
        <item value="0x04">02       </item>
        <item value="0x06">03       </item>
        <item value="0x08">04       </item>
        <item value="0x0a">05 (fast)</item>
    </parameter>
    <script state="on">
        <action>maincpu.mq@09158 = 4eb900021080916e</action> <!-- right -->
        <action>maincpu.mq@09190 = 4eb900021080d16e</action> <!-- up -->
        <action>maincpu.mq@091a4 = 4eb900021080d16e</action> <!-- left -->
        <action>maincpu.mq@091c8 = 4eb900021080916e</action> <!-- down -->
        <action>maincpu.mq@21080 = bdfc00ffe5226708</action>
        <action>maincpu.mq@21088 = bdfc00ffe582660a</action>
        <action>maincpu.mq@21090 = 4a406704303c0000</action>
        <action>maincpu.mq@21098 = 4e7512301000d041</action>
        <action>maincpu.mq@210a0 = 4e75ffffffffffff</action>
        <!--
        21080 | bdfc 00ff e522 : cmpa.l #$ffe522,A6
        21086 | 6708           : beq    $21090
        21088 | bdfc 00ff e582 : cmpa.l #$ffe582,A6
        2108e | 660a           : bne    $2109a
        21090 | 4a40           : tst.w  D0
        21092 | 6704           : beq    $21098
        21094 | 303c 00xx      : move.w #$xx,D0
        21098 | 4e75           : rts
        2109a | 1230 1000      : move.b (A0,D1.w),D1
        2109e | d041           : add.w  D1,D0
        210a0 | 4e75           : rts
        -->
    </script>
    <script state="change">
        <action>maincpu.mb@21097 = param</action>
    </script>
    <script state="off">
        <action>maincpu.mq@09158 = 12301000d041916e</action>
        <action>maincpu.mq@09190 = 12301000d041d16e</action>
        <action>maincpu.mq@091a4 = 12301000d041d16e</action>
        <action>maincpu.mq@091c8 = 12301000d041916e</action>
        <action>maincpu.mq@21080 = ffffffffffffffff</action>
        <action>maincpu.mq@21088 = ffffffffffffffff</action>
        <action>maincpu.mq@21090 = ffffffffffffffff</action>
        <action>maincpu.mq@21098 = ffffffffffffffff</action>
        <action>maincpu.mq@210a0 = ffffffffffffffff</action>
    </script>
</cheat>

<cheat desc="bullet speed - main shot">
    <parameter>
        <item value="0x06">01 (slow)</item>
        <item value="0x0c">02       </item>
        <item value="0x12">03       </item>
        <item value="0x18">04       </item>
        <item value="0x1e">05 (fast)</item>
    </parameter>
    <script state="on">
        <action>maincpu.md@09d4c = 303c0000</action>
    </script>
    <script state="change">
        <action>maincpu.mb@09d4f = param</action>
    </script>
    <script state="off">
        <action>maincpu.md@09d4c = 303b0034</action>
    </script>
</cheat>

<cheat desc="max bullets up">
    <script state="on">
        <action>maincpu.md@07db0 =         000210b0</action>
        <action>maincpu.mq@210b0 = 7404610086b04e75</action>
        <!--
        210b0 | 7404      : moveq #$4,D2
        210b2 | 6100 86b0 : bsr   $19764
        210b6 | 4e75      : rts
        -->
    </script>
    <script state="off">
        <action>maincpu.md@07db0 =         00019764</action>
        <action>maincpu.mq@210b0 = ffffffffffffffff</action>
    </script>
</cheat>

<cheat desc="sound test mode">
    <comment>reset the game (F3) to enter sound test mode</comment>
    <script state="on">
        <action>maincpu.md@0045e =         000210c0</action>
        <action>maincpu.mq@210c0 = 4eb809fe41ed0100</action>
        <action>maincpu.mq@210c8 = 43ed011012111439</action>
        <action>maincpu.mq@210d0 = 00b000011282b401</action>
        <action>maincpu.mq@210d8 = 67e60c0200fe6602</action>
        <action>maincpu.mq@210e0 = 53100c0200fd6602</action>
        <action>maincpu.mq@210e8 = 52100c0200f76604</action>
        <action>maincpu.mq@210f0 = 041000100c0200fb</action>
        <action>maincpu.mq@210f8 = 6604061000100c02</action>
        <action>maincpu.mq@21100 = 00ef660810104eb8</action>
        <action>maincpu.mq@21108 = 0918600a0c0200df</action>
        <action>maincpu.mq@21110 = 66044eb808ba60a8</action>
        <!--
        210c0 | 4eb8 09fe      : jsr    $9fe.w
        210c4 | 41ed 0100      : lea    ($100,A5),A0 // sound code address
        210c8 | 43ed 0110      : lea    ($110,A5),A1 // input compare address
        210cc | 1211           : move.b (A1),D1
        210ce | 1439 00b0 0001 : move.b $b00001.l,D2 // read input
        210d4 | 1282           : move.b D2,(A1)
        210d6 | b401           : cmp.b  D1,D2
        210d8 | 67e6           : beq    $210c0
        210da | 0c02 00fe      : cmpi.b #-$2,D2
        210de | 6602           : bne    $210e2
        210e0 | 5310           : subq.b #1,(A0)      // decrease code -01
        210e2 | 0c02 00fd      : cmpi.b #-$3,D2
        210e6 | 6602           : bne    $210ea
        210e8 | 5210           : addq.b #1,(A0)      // increase code +01
        210ea | 0c02 00f7      : cmpi.b #-$9,D2
        210ee | 6604           : bne    $210f4
        210f0 | 0410 0010      : subi.b #$10,(A0)    // decrease code -10
        210f4 | 0c02 00fb      : cmpi.b #-$5,D2
        210f8 | 6604           : bne    $210fe
        210fa | 0610 0010      : addi.b #$10,(A0)    // increase code +10
        210fe | 0c02 00ef      : cmpi.b #-$11,D2
        21102 | 6608           : bne    $2110c
        21104 | 1010           : move.b (A0),D0      // play sound
        21106 | 4eb8 0918      : jsr    $918.w
        2110a | 600a           : bra    $21116
        2110c | 0c02 00df      : cmpi.b #-$21,D2
        21110 | 6604           : bne    $21116
        21112 | 4eb8 08ba      : jsr    $8ba.w       // stop sound
        21116 | 60a8           : bra    $210c0
        -->
    </script>
    <script state="run">
        <output format="----- strike gunner sound test mode -----" line="10" align="center" />
        <output format="left : decrease code -01"                  line="11" align="center" />
        <output format="right : increase code +01"                 line="12" align="center" />
        <output format="up : increase code +10"                    line="13" align="center" />
        <output format="down : decrease code -10"                  line="14" align="center" />
        <output format="button 1 : play sound"                     line="15" align="center" />
        <output format="button 2 : stop sound"                     line="16" align="center" />
        <output format="----------------------------"              line="17" align="center" />
        <output format="&lt;&lt; sound code %2.2X &gt;&gt;"        line="19" align="center">
            <argument>maincpu.pb@ffc100</argument>
        </output>
    </script>
    <script state="off">
        <action>maincpu.md@0045e =         00000ab6</action>
        <action>maincpu.mq@210c0 = ffffffffffffffff</action>
        <action>maincpu.mq@210c8 = ffffffffffffffff</action>
        <action>maincpu.mq@210d0 = ffffffffffffffff</action>
        <action>maincpu.mq@210d8 = ffffffffffffffff</action>
        <action>maincpu.mq@210e0 = ffffffffffffffff</action>
        <action>maincpu.mq@210e8 = ffffffffffffffff</action>
        <action>maincpu.mq@210f0 = ffffffffffffffff</action>
        <action>maincpu.mq@210f8 = ffffffffffffffff</action>
        <action>maincpu.mq@21100 = ffffffffffffffff</action>
        <action>maincpu.mq@21108 = ffffffffffffffff</action>
        <action>maincpu.mq@21110 = ffffffffffffffff</action>
    </script>
</cheat>

[stg] Strike Gunner - S.T.G

Posted: Mon Nov 20, 2023 9:32 am
by jman

Code: Select all

<!-- Strike Gunner S.T.G -->
<mamecheat version="1">

    <cheat desc="no hit">
        <script state="on">
            <action>maincpu.md@77B6 = 61000050</action> <!-- objects -->
            <action>maincpu.md@7BF2 = 60000082</action> <!-- wall -->
        </script>
        <script state="off">
            <action>maincpu.md@77B6 = 61000052</action>
            <action>maincpu.md@7BF2 = 6A0009DC</action>
        </script>
    </cheat>

    <cheat desc="auto fire">
        <script state="on">
            <action>maincpu.md@7D84 = 01074E71</action> <!-- btst D0,D7 / nop -->
        </script>
        <script state="off">
            <action>maincpu.md@7D84 = 6100083A</action>
        </script>
    </cheat>

    <cheat desc="player speed">
        <parameter>
            <item value="0x01">01 (slow)</item>
            <item value="0x04">02       </item>
            <item value="0x06">03       </item>
            <item value="0x08">04       </item>
            <item value="0x0a">05 (fast)</item>
        </parameter>
        <script state="on">
            <action>maincpu.mq@07CDC = 4EB9000210704E71</action>
            <action>maincpu.mq@21070 = 123B00184881D36E</action>
            <action>maincpu.mq@21078 = 0002123B001E4881</action>
            <action>maincpu.mq@21080 = D36E0004202E0002</action>
            <action>maincpu.mq@21088 = 4E75000000000000</action>
            <action>maincpu.mq@21090 = 0000000000000000</action>
            <action>maincpu.mq@21098 = 0000000000000000</action>
            <action>maincpu.mq@210A0 = 0000000000000000</action>
            <action>maincpu.mq@210A8 = 0000FFFFFFFFFFFF</action>
            <!--
            21070 | 123B 0018 : move.b  ($18,PC,D0.w), D1 // x position
            21074 | 4881      : ext.w   D1
            21076 | D36E 0002 : add.w   D1, ($2,A6)
            2107A | 123B 001E : move.b  ($1e,PC,D0.w), D1 // y position
            2107E | 4881      : ext.w   D1
            21080 | D36E 0004 : add.w   D1, ($4,A6)
            21084 | 202E 0002 : move.l  ($2,A6), D0
            21088 | 4E75      : rts
            21089 - 210A9     : input/speed conversion table
            -->
        </script>
        <script state="change">
            <action>maincpu.mb@2108F = -param</action> <!-- lower-right : right -->
            <action>maincpu.mb@2109F = -param</action> <!-- lower-right : down -->
            <action>maincpu.mb@21090 =  param</action> <!-- lower-left : left -->
            <action>maincpu.mb@210A0 = -param</action> <!-- lower-left : down -->
            <action>maincpu.mb@210A1 = -param</action> <!-- down -->
            <action>maincpu.mb@21093 = -param</action> <!-- upper-right : right -->
            <action>maincpu.mb@210A3 =  param</action> <!-- upper-right : up -->
            <action>maincpu.mb@21094 =  param</action> <!-- upper-left : left -->
            <action>maincpu.mb@210A4 =  param</action> <!-- upper-left : up -->
            <action>maincpu.mb@210A5 =  param</action> <!-- up -->
            <action>maincpu.mb@21097 = -param</action> <!-- right -->
            <action>maincpu.mb@21098 =  param</action> <!-- left -->
        </script>
        <script state="off">
            <action>maincpu.mq@07CDC = 6100144E202E0002</action>
            <action>maincpu.mq@21070 = FFFFFFFFFFFFFFFF</action>
            <action>maincpu.mq@21078 = FFFFFFFFFFFFFFFF</action>
            <action>maincpu.mq@21080 = FFFFFFFFFFFFFFFF</action>
            <action>maincpu.mq@21088 = FFFFFFFFFFFFFFFF</action>
            <action>maincpu.mq@21090 = FFFFFFFFFFFFFFFF</action>
            <action>maincpu.mq@21098 = FFFFFFFFFFFFFFFF</action>
            <action>maincpu.mq@210A0 = FFFFFFFFFFFFFFFF</action>
            <action>maincpu.mq@210A8 = FFFFFFFFFFFFFFFF</action>
        </script>
    </cheat>

    <cheat desc="bullet speed - main shot">
        <parameter>
            <item value="0x0006">01 (slow)</item>
            <item value="0x000c">02       </item>
            <item value="0x0012">03       </item>
            <item value="0x0018">04       </item>
            <item value="0x001e">05 (fast)</item>
        </parameter>
        <script state="on">
            <action>maincpu.mw@9D4C = 303C</action>
        </script>
        <script state="change">
            <action>maincpu.mw@9D4E = param</action>
        </script>
        <script state="off">
            <action>maincpu.md@9D4C = 303B0034</action>
        </script>
    </cheat>

    <cheat desc="max bullets up (test)">
        <script state="on">
            <action>maincpu.md@07DB0 = 000210B0        </action>
            <action>maincpu.mq@210B0 = 7404610086B04E75</action>
            <!--
            210B0 | 7404      : moveq   #$4, D2
            210B2 | 6100 86B0 : bsr     $19764
            210B6 | 4E75      : rts
            -->
        </script>
        <script state="off">
            <action>maincpu.md@07DB0 = 00019764        </action>
            <action>maincpu.mq@210B0 = FFFFFFFFFFFFFFFF</action>
        </script>
    </cheat>

    <cheat desc="short hit mark - main shot">
        <script state="on">
            <action>maincpu.mw@94A2 = 0000</action>
        </script>
        <script state="off">
            <action>maincpu.mw@94A2 = 0401</action>
        </script>
    </cheat>

    <cheat desc="sound test mode">
        <comment>reset the game (F3) to enter sound test mode</comment>
        <script state="on">
            <action>maincpu.md@0045E = 000210C0        </action>
            <action>maincpu.mq@210C0 = 4EB809FE41ED0100</action>
            <action>maincpu.mq@210C8 = 43ED010112111439</action>
            <action>maincpu.mq@210D0 = 00B000011282B401</action>
            <action>maincpu.mq@210D8 = 67E60C0200FE6602</action>
            <action>maincpu.mq@210E0 = 53100C0200FD6602</action>
            <action>maincpu.mq@210E8 = 52100C0200F76604</action>
            <action>maincpu.mq@210F0 = 041000100C0200FB</action>
            <action>maincpu.mq@210F8 = 6604061000100C02</action>
            <action>maincpu.mq@21100 = 00EF660810104EB8</action>
            <action>maincpu.mq@21108 = 0918600A0C0200DF</action>
            <action>maincpu.mq@21110 = 66044EB808BA60A8</action>
            <!--
            210C0 | 4EB8 09FE      : jsr     $9fe.w
            210C4 | 41ED 0100      : lea     ($100,A5), A0 // sound code address ($ffc100)
            210C8 | 43ED 0101      : lea     ($101,A5), A1 // input comparision address ($ffc101)
            210CC | 1211           : move.b  (A1), D1
            210CE | 1439 00B0 0001 : move.b  $b00001.l, D2 // read input
            210D4 | 1282           : move.b  D2, (A1)
            210D6 | B401           : cmp.b   D1, D2
            210D8 | 67E6           : beq     $210c0
            210DA | 0C02 00FE      : cmpi.b  #-$2, D2
            210DE | 6602           : bne     $210e2
            210E0 | 5310           : subq.b  #1, (A0)      // decrease code -01
            210E2 | 0C02 00FD      : cmpi.b  #-$3, D2
            210E6 | 6602           : bne     $210ea
            210E8 | 5210           : addq.b  #1, (A0)      // increase code +01
            210EA | 0C02 00F7      : cmpi.b  #-$9, D2
            210EE | 6604           : bne     $210f4
            210F0 | 0410 0010      : subi.b  #$10, (A0)    // decrease code -10
            210F4 | 0C02 00FB      : cmpi.b  #-$5, D2
            210F8 | 6604           : bne     $210fe
            210FA | 0610 0010      : addi.b  #$10, (A0)    // increase code +10
            210FE | 0C02 00EF      : cmpi.b  #-$11, D2
            21102 | 6608           : bne     $2110c
            21104 | 1010           : move.b  (A0), D0      // play sound
            21106 | 4EB8 0918      : jsr     $918.w
            2110A | 600A           : bra     $21116
            2110C | 0C02 00DF      : cmpi.b  #-$21, D2
            21110 | 6604           : bne     $21116
            21112 | 4EB8 08BA      : jsr     $8ba.w        // stop sound
            21116 | 60A8           : bra     $210c0
            -->
        </script>
        <script state="run">
            <output format="----- strike gunner sound test mode -----" line="10" align="center" />
            <output format="left : decrease code -01"                  line="11" align="center" />
            <output format="right : increase code +01"                 line="12" align="center" />
            <output format="down : decrease code -10"                  line="13" align="center" />
            <output format="up : increase code +10"                    line="14" align="center" />
            <output format="button 1 : play sound"                     line="15" align="center" />
            <output format="button 2 : stop sound"                     line="16" align="center" />
            <output format="----------------------------"              line="17" align="center" />
            <output format="&lt;&lt; sound code %2.2X &gt;&gt;"        line="19" align="center"  >
                <argument>maincpu.pb@FFC100</argument>
            </output>
        </script>
        <script state="off">
            <action>maincpu.md@0045E = 00000AB6        </action>
            <action>maincpu.mq@210C0 = FFFFFFFFFFFFFFFF</action>
            <action>maincpu.mq@210C8 = FFFFFFFFFFFFFFFF</action>
            <action>maincpu.mq@210D0 = FFFFFFFFFFFFFFFF</action>
            <action>maincpu.mq@210D8 = FFFFFFFFFFFFFFFF</action>
            <action>maincpu.mq@210E0 = FFFFFFFFFFFFFFFF</action>
            <action>maincpu.mq@210E8 = FFFFFFFFFFFFFFFF</action>
            <action>maincpu.mq@210F0 = FFFFFFFFFFFFFFFF</action>
            <action>maincpu.mq@210F8 = FFFFFFFFFFFFFFFF</action>
            <action>maincpu.mq@21100 = FFFFFFFFFFFFFFFF</action>
            <action>maincpu.mq@21108 = FFFFFFFFFFFFFFFF</action>
            <action>maincpu.mq@21110 = FFFFFFFFFFFFFFFF</action>
        </script>
    </cheat>

</mamecheat>
  • "auto fire", "player speed" : Rewritten routine.
  • "max bullets up" : Downgraded to test code. Ineffectual when you have max power-up.
  • "short hit mark" : Added new.
All times are UTC+01:00
Page 1 of 1

Powered by phpBB® Forum Software © phpBB Limited