Emulator Cheats

Posted: **Sat Feb 25, 2023 11:56 am**

<cheat desc="no hit">
    <script state="run">
        <action>maincpu.pw@1c27 = 1390</action> <!-- bullet -->
        <action>maincpu.pw@2865 = d490</action> <!-- enemy -->
    </script>
    <script state="off">
        <action>maincpu.pw@1c27 = 01c9</action>
        <action>maincpu.pw@2865 = 01c9</action>
    </script>
</cheat>

<cheat desc="auto fire">
    <script state="run">
        <action>maincpu.pb@1ed4 = 00</action>
    </script>
    <script state="off">
        <action>maincpu.pb@1ed4 = 01</action>
    </script>
</cheat>

<cheat desc="player speed">
    <parameter min="0x01" max="0x05" step="0x01" />
    <script state="run">
        <action>maincpu.pw@066e =             4fc0</action>
        <action>maincpu.pq@4fc0 = ca681d24402800c9</action>
        <action>maincpu.pq@4fc8 = 00000060f6b08aaa</action>
        <!--
        4fc0 | a9 xx    : lda #$xx
        4fc2 | 48       : pha
        4fc3 | 20 44 1d : jsr $1d24
        4fc6 | 68       : pla
        4fc7 | aa       : tax
        4fc8 | ca       : dex
        4fc9 | 8a       : txa
        4fca | d0 f6    : bne $4fc2
        4fcc | 60       : rts
        -->
        <action>maincpu.pb@4fc1 = param</action>
    </script>
    <script state="off">
        <action>maincpu.pw@066e =             1d24</action>
        <action>maincpu.pq@4fc0 = 0000000000000000</action>
        <action>maincpu.pq@4fc8 = 0000000000000000</action>
    </script>
</cheat>

<cheat desc="bullet speed">
    <parameter>
        <item value="0x01">01 (slow)</item>
        <item value="0x04">02       </item>
        <item value="0x08">03       </item>
        <item value="0x0c">04       </item>
        <item value="0x10">05 (fast)</item>
    </parameter>
    <script state="run">
        <action>maincpu.pb@1feb = param</action> <!-- range -->
        <action>maincpu.pb@2024 = param</action> <!-- speed -->
        <action>maincpu.pb@2026 = param</action> <!-- speed -->
        <action>maincpu.pb@2028 = param</action> <!-- speed -->
        <action>maincpu.pb@202a = param</action> <!-- speed -->
    </script>
    <script state="off">
        <action>maincpu.pb@1feb = 08</action>
        <action>maincpu.pb@2024 = 05</action>
        <action>maincpu.pb@2026 = 05</action>
        <action>maincpu.pb@2028 = 05</action>
        <action>maincpu.pb@202a = 05</action>
    </script>
</cheat>

<cheat desc="sound test mode">
    <comment>reset the game (F3) then wait data load to enter sound test mode</comment>
    <script state="run">
        <!-- routine -->
        <action>maincpu.pw@05e5 =             4fd0</action>
        <action>maincpu.pq@4fd0 = f011a5e600cd1185</action>
        <action>maincpu.pq@4fd8 = 01b002a910c6c8f7</action>
        <action>maincpu.pq@4fe0 = 08a9e801b001a9aa</action>
        <action>maincpu.pq@4fe8 = 98ca10e9588a06b0</action>
        <action>maincpu.pq@4ff0 = 1069188a06b004a9</action>
        <action>maincpu.pq@4ff8 = 06f010a9108698ca</action>
        <action>maincpu.pq@5000 = 148e00c205b020a9</action>
        <action>maincpu.pq@5008 = 000000004fd02ce4</action>
        <!--
        4fd0 | 85 11    : sta $11
        4fd2 | ad 00 e6 : lda $e600 // read input
        4fd5 | c5 11    : cmp $11
        4fd7 | f0 f7    : beq $4fd0
        4fd9 | a8       : tay
        4fda | a6 10    : ldx $10
        4fdc | c9 02    : cmp #$02
        4fde | d0 01    : bne $4fe1
        4fe0 | ca       : dex       // decrease code -01
        4fe1 | c9 01    : cmp #$01
        4fe3 | d0 01    : bne $4fe6
        4fe5 | e8       : inx       // increase code +01
        4fe6 | c9 08    : cmp #$08
        4fe8 | d0 06    : bne $4ff0
        4fea | 8a       : txa       // decrease code -10
        4feb | 38       : sec
        4fec | e9 10    : sbc #$10
        4fee | aa       : tax
        4fef | 98       : tya
        4ff0 | c9 04    : cmp #$04
        4ff2 | d0 06    : bne $4ffa
        4ff4 | 8a       : txa       // increase code +10
        4ff5 | 18       : clc
        4ff6 | 69 10    : adc #$10
        4ff8 | aa       : tax
        4ff9 | 98       : tya
        4ffa | 86 10    : stx $10
        4ffc | c9 10    : cmp #$10
        4ffe | f0 06    : beq $5006
        4500 | c9 40    : cmp #$20
        4502 | d0 05    : bne $5009
        4504 | a2 00    : ldx #$00  // stop sound
        4506 | 8e 14 e4 : stx $e414 // send sound code
        4509 | 4c d0 4f : jmp $4fd0
        -->
        <action>audiocpu.pb@0bb8 = 58</action> <!-- enable interrupt in playing music (0x41-0x42) to stop sound -->
        <!-- display -->
        <output format="----- terranean 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@0010</argument>
        </output>
    </script>
    <script state="off">
        <action> maincpu.pw@05e5 =             072a</action>
        <action> maincpu.pq@4fd0 = 0000000000000000</action>
        <action> maincpu.pq@4fd8 = 0000000000000000</action>
        <action> maincpu.pq@4fe0 = 0000000000000000</action>
        <action> maincpu.pq@4fe8 = 0000000000000000</action>
        <action> maincpu.pq@4ff0 = 0000000000000000</action>
        <action> maincpu.pq@4ff8 = 0000000000000000</action>
        <action> maincpu.pq@4500 = 0000000000000000</action>
        <action> maincpu.pq@4508 = 0000000000000000</action>
        <action>audiocpu.pb@0bb8 =               78</action>
    </script>
</cheat>

Posted: **Thu Aug 15, 2024 12:03 pm**

Small clean up.

cterrani.xml

Code: Select all

<!-- Terranean (DECO Cassette) (US) -->
<mamecheat version="1">

    <cheat desc="no hit">
        <script state="run">
            <action>maincpu.pw@1C27 = 1390</action> <!-- bullet -->
            <action>maincpu.pw@2865 = D490</action> <!-- enemy -->
        </script>
        <script state="off">
            <action>maincpu.pw@1C27 = 01C9</action>
            <action>maincpu.pw@2865 = 01C9</action>
        </script>
    </cheat>

    <cheat desc="auto fire">
        <script state="run">
            <action>maincpu.pb@1ED4 = 00</action>
        </script>
        <script state="off">
            <action>maincpu.pb@1ED4 = 01</action>
        </script>
    </cheat>

    <cheat desc="player speed">
        <parameter min="0x01" max="0x05" step="0x01" />
        <script state="run">
            <action>maincpu.pw@066E = 4FC0            </action>
            <action>maincpu.pq@4FC0 = CA681D24402800C9</action>
            <action>maincpu.pq@4FC8 = 00000060F6B08AAA</action>
            <!--
            4FC0 | A9 xx    : lda #$xx
            4FC2 | 48       : pha
            4FC3 | 20 24 1D : jsr $1d24
            4FC6 | 68       : pla
            4FC7 | AA       : tax
            4FC8 | CA       : dex
            4FC9 | 8A       : txa
            4FCA | D0 F6    : bne $4fc2
            4FCC | 60       : rts
            -->
            <action>maincpu.pb@4FC1 = param</action>
        </script>
        <script state="off">
            <action>maincpu.pw@066E = 1D24            </action>
            <action>maincpu.pq@4FC0 = 0000000000000000</action>
            <action>maincpu.pq@4FC8 = 0000000000000000</action>
        </script>
    </cheat>

    <cheat desc="bullet speed">
        <parameter>
            <item value="0x01">01 (slow)</item>
            <item value="0x04">02       </item>
            <item value="0x08">03       </item>
            <item value="0x0c">04       </item>
            <item value="0x10">05 (fast)</item>
        </parameter>
        <script state="run">
            <action>maincpu.pb@1FEB = param</action> <!-- range -->
            <action>maincpu.pb@2024 = param</action> <!-- speed -->
            <action>maincpu.pb@2026 = param</action> <!-- speed -->
            <action>maincpu.pb@2028 = param</action> <!-- speed -->
            <action>maincpu.pb@202A = param</action> <!-- speed -->
        </script>
        <script state="off">
            <action>maincpu.pb@1FEB = 08</action>
            <action>maincpu.pb@2024 = 05</action>
            <action>maincpu.pb@2026 = 05</action>
            <action>maincpu.pb@2028 = 05</action>
            <action>maincpu.pb@202A = 05</action>
        </script>
    </cheat>

    <cheat desc="sound test mode">
        <comment>reset the game (F3) then wait data load to enter sound test mode</comment>
        <script state="run">
            <!-- routine -->
            <action>maincpu.pw@05E5 = 4FD0            </action>
            <action>maincpu.pq@4FD0 = F081A4E600CC8184</action>
            <action>maincpu.pq@4FD8 = AA01B002A080C6F7</action>
            <action>maincpu.pq@4FE0 = B008A0E801B001A0</action>
            <action>maincpu.pq@4FE8 = 04A0CA10E9588A05</action>
            <action>maincpu.pq@4FF0 = 86CA1069188A05B0</action>
            <action>maincpu.pq@4FF8 = B020A006F010A080</action>
            <action>maincpu.pq@5000 = D02CE4148E00C205</action>
            <action>maincpu.pq@5008 = 000000000000004F</action>
            <!--
            4FD0 | 84 81    : sty $81
            4FD2 | AC 00 E6 : ldy $e600 // read input
            4FD5 | C4 81    : cpy $81
            4FD7 | F0 F7    : beq $4fd0
            4FD9 | A6 80    : ldx $80
            4FDB | C0 02    : cpy #$02
            4FDD | D0 01    : bne $4fe0
            4FDF | CA       : dex       // decrease code -01
            4FE0 | C0 01    : cpy #$01
            4FE2 | D0 01    : bne $4fe5
            4FE4 | E8       : inx       // increase code +01
            4FE5 | C0 08    : cpy #$08
            4FE7 | D0 05    : bne $4fee
            4FE9 | 8A       : txa       // decrease code -10
            4FEA | 38       : sec
            4FEB | E9 10    : sbc #$10
            4FED | AA       : tax
            4FEE | C0 04    : cpy #$04
            4FF0 | D0 05    : bne $4ff7
            4FF2 | 8A       : txa       // increase code +10
            4FF3 | 18       : clc
            4FF4 | 69 10    : adc #$10
            4FF6 | AA       : tax
            4FF7 | 86 80    : stx $80
            4FF9 | C0 10    : cpy #$10
            4FFB | F0 06    : beq $5003 // play sound
            4FFD | C0 20    : cpy #$20
            4FFF | D0 05    : bne $5006
            5001 | A2 00    : ldx #$00  // stop sound
            5003 | 8E 14 E4 : stx $e414 // send sound code
            5006 | 4C D0 4F : jmp $4fd0
            -->
            <action>audiocpu.pb@0BB8 = 58</action> <!-- enable interrupt to stop sound in playing music -->
            <!-- display -->
            <output format="----- 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 %02X &gt;&gt;" line="19" align="center"  >
                <argument>maincpu.pb@0080</argument>
            </output>
        </script>
        <script state="off">
            <action> maincpu.pw@05E5 = 072A            </action>
            <action> maincpu.pq@4FD0 = 0000000000000000</action>
            <action> maincpu.pq@4FD8 = 0000000000000000</action>
            <action> maincpu.pq@4FE0 = 0000000000000000</action>
            <action> maincpu.pq@4FE8 = 0000000000000000</action>
            <action> maincpu.pq@4FF0 = 0000000000000000</action>
            <action> maincpu.pq@4FF8 = 0000000000000000</action>
            <action> maincpu.pq@4500 = 0000000000000000</action>
            <action> maincpu.pq@4508 = 0000000000000000</action>
            <action>audiocpu.pb@0BB8 = 78              </action>
        </script>
    </cheat>

</mamecheat>

"sound test mode" : Rewritten routine.

Emulator Cheats

[cterrani] Terranean

[cterrani] Terranean

[cterrani] Terranean