Tweet
Code:
BATTLE MODE =========== Avatar Sword Wave DD6A-D7A4 Standing High Jump F96B-DF96 Standing Super Jump 7D6B-DF96 Standing Ultra Jump 1D6B-DF96 Standing Moon Jump CD6B-DF96 Running High Jump F961-DFF6 Running Super Jump 7D61-DFF6 Running Ultra Jump 1D61-DFF6 Running Moon Jump CD61-DFF6 Timer Counts Up in Battle Mode 1B8B-DFA8 Time Bonus Worth 4x As Much D0CF-6FAD Extra Life Bonus Worth 5000 D9C0-670D End Level Bonus of 10000 FDC5-6DAD End Level Bonus of 99990 (max score) DD60-AF6F SIM MODE ======== Angel Infinite HP C282-D400 Angel Has Higher Power DD89-AD60 Use Magic Skull on Any Lair 6DB0-AD65 No Monsters in SIM Mode 6D8B-07A3 Towns Build Faster DD63-0D6A Towns Build Even Faster DD63-0D6A + 1D63-0D0A Towns Build at Breakneck Speed (see note) DD63-0D6A + DF63-0D0A NOTE: Once souls run out, game will lag. Disable code at this point. Towns Will Grow Despite Problems 6D64-07A2 Towns Start at Highest Civilization D766-D70A Skip Introduction When Starting Town DD6B-DFDA No Construction 6D69-AF6A ITEM CODES ========== Get Any Item From Fillmore - Master Code (see notes) 6D68-D4A1 + CB6D-07A1 + 3C6F-0D01 Magical Fire DF6F-0DD1 Magical Stardust D46F-0DD1 Magical Aura D76F-0DD1 Magical Light D06F-0DD1 Source of Life D96F-0DD1 Source of Magic D16F-0DD1 Loaf of Bread D56F-0DD1 Wheat D66F-0DD1 Herb DB6F-0DD1 Bridge DC6F-0DD1 Harmonious Music D86F-0DD1 Ancient Tablet D26F-0DD1 Magic Skull D36F-0DD1 Sheep's Fleece DE6F-0DD1 Bomb! F46F-0DD1 Compass F76F-0DD1 Strength of Angel F06F-0DD1 NOTES: These codes will force an offering at Fillmore. The code consists of 4 GG codes: 3 codes as a master code, and 1 code as the slot modifier. You can then enter Fillmore, accept the item as many times as you want, and save your game. Then you can reset and enter another item code for other items if you desire. The item text/icon will not appear but if you press B to select you will receive the offering.
ActRaiser is one of those games. I have owned it for years, finished it a few times and enjoyed it thoroughly but lately it hasn't drawn my interest. With the Game Genie however, I figured I'd give it another go.
It wasn't long before I started dreaming up codes for this game and implementing them. I also made good use of the codes in the DB, there are some great ones there!
I noticed a lot of them are RAW codes, I ported several of them over to GG format to achieve the same effect on a real console. I have playtested most of these codes quite thoroughly and have enjoyed every minute of it!
CODE REQUEST
I tried, but my Kung Fu is not strong enough to make these codes. Anyone want to give it a shot?
- Clear any land area (ie: forests/mountains)
and/or
- Build anywhere
- Increase building limit beyond max population
Basically I would love to see as many buildings as will fit on the screen as possible!
INTERESTING STUFF
Also, I discovered something interesting in my travels. Other coders may want to take a look at the table I found in ROM. Modifying it could lead to all sorts of fun and wacky antics!
The table is posted at the very bottom of the Code Development Notes #2 (next post), it's quite a large table of entries just begging to be messed with.
Code Development Notes:
Spoiler Alert! Click to view...
Towns build faster
DD63-0D6A
Towns build even faster
DD63-0D6A + 1D63-0D0A
Towns build at breakneck speed
DD63-0D6A + DF63-0D0A
Code:
This was my first stab at a code for this game. It gets old waiting for the 20-second build cycles when waiting for a town to grow. I wanted a way to speed this up. Doing some RAM searches, I discovered $7F:91FE holds a 16-bit value which is the counter for the build cycle. This routine controls the build cycles: $03/81DA EE FE 91 INC $91FE [$7F:91FE] A:0006 X:0B0A Y:B423 P:eNvmxdIzc $03/81DD AD FE 91 LDA $91FE [$7F:91FE] A:0006 X:0B0A Y:B423 P:envmxdIzc $03/81E0 C9 D0 02 CMP #$02D0 A:02AE X:0B0A Y:B423 P:envmxdIzc $03/81E3 90 09 BCC $09 [$81EE] A:02AE X:0B0A Y:B423 P:eNvmxdIzc $03/81EE 20 0C 8E JSR $8E0C [$03:8E0C] A:02AE X:0B0A Y:B423 P:eNvmxdIzc When the value at $91FE is equal to 0x02D0 the game will start another build. To reduce build time: Change compare value at $03:81E0 to lower value 0381E2:00 = DD63-0D6A (Towns build faster) 0381E1:60 = 1D63-0D0A (Towns build even faster) 0381E1:01 = DF63-0D0A (Towns build at breakneck speed) The breakneck speed one is awesome! The town is under construction so often that roads can barely be built, you will see them advance one square at a time instead of the full 9-square area at once. Pretty neat! :)
Build as far as you want
BUGGY / Not possible?
Code:
Well this one was wishful thinking but I had to try. I wanted a way to build more than 8 squares at a time. I found a way to disable the limit, but unfortunately it doesn't work as the RAM is only set up to hold enough info for 8 squares ahead. Increasing the amount will start overwriting RAM past the intended area and will corrupt things like the population of the town. For this reason I didn't convert it to a GG code or include it in the list. $7F:9F4E holds the counter which limits you to building 8 squares at a time: $01/95C8 AF 1D 7C 7F LDA $7F7C1D[$7F:7C1D] A:0040 X:0016 Y:0000 P:envmxdIZc $01/95CC AA TAX A:0001 X:0016 Y:0000 P:envmxdIzc $01/95CD 1A INC A A:0001 X:0001 Y:0000 P:envmxdIzc $01/95CE 8F 1D 7C 7F STA $7F7C1D[$7F:7C1D] A:0002 X:0001 Y:0000 P:envmxdIzc $01/95D2 E2 20 SEP #$20 A:0002 X:0001 Y:0000 P:envmxdIzc $01/95D4 AF 4E 9F 7F LDA $7F9F4E[$7F:9F4E] A:0002 X:0001 Y:0000 P:envMxdIzc $01/95D8 1A INC A A:0001 X:0001 Y:0000 P:envMxdIzc $01/95D9 8F 4E 9F 7F STA $7F9F4E[$7F:9F4E] A:0002 X:0001 Y:0000 P:envMxdIzc $01/95DD 98 TYA A:0002 X:0001 Y:0000 P:envMxdIzc $01/95DE 9F 4F 9F 7F STA $7F9F4F,x[$7F:9F50] A:0000 X:0001 Y:0000 P:envMxdIZc $01/95E2 C2 20 REP #$20 A:0000 X:0001 Y:0000 P:envMxdIZc $01/95E4 AD EE 0A LDA $0AEE [$01:0AEE] A:0000 X:0001 Y:0000 P:envmxdIZc $01/95E7 18 CLC A:00DE X:0001 Y:0000 P:envmxdIzc $01/95E8 69 08 00 ADC #$0008 A:00DE X:0001 Y:0000 P:envmxdIzc $01/95EB 29 C0 FF AND #$FFC0 A:00E6 X:0001 Y:0000 P:envmxdIzc $01/95EE 8F 0A 9F 7F STA $7F9F0A[$7F:9F0A] A:00C0 X:0001 Y:0000 P:envmxdIzc $01/95F2 AD F0 0A LDA $0AF0 [$01:0AF0] A:00C0 X:0001 Y:0000 P:envmxdIzc $01/95F5 18 CLC A:0076 X:0001 Y:0000 P:envmxdIzc $01/95F6 69 08 00 ADC #$0008 A:0076 X:0001 Y:0000 P:envmxdIzc $01/95F9 29 C0 FF AND #$FFC0 A:007E X:0001 Y:0000 P:envmxdIzc $01/95FC 8F 0C 9F 7F STA $7F9F0C[$7F:9F0C] A:0040 X:0001 Y:0000 P:envmxdIzc $01/9600 AF 4E 9F 7F LDA $7F9F4E[$7F:9F4E] A:0040 X:0001 Y:0000 P:envmxdIzc $01/9604 29 FF 00 AND #$00FF A:0002 X:0001 Y:0000 P:envmxdIzc $01/9607 C9 08 00 CMP #$0008 A:0002 X:0001 Y:0000 P:envmxdIzc $01/960A F0 03 BEQ $03 [$960F] A:0002 X:0001 Y:0000 P:eNvmxdIzc At $01:9607 is where it checks the limit of 8 squares. By changing the branch value on the BEQ to 00 it is possible to bypass this limit. But again, it will start corrupting RAM so it's not really feasible. 01960B:00 = Build as far as you want (BUGGY - will corrupt RAM)
Angel Has Higher Power
DD89-AD60
Code:
Looking to port the original code by Deuce X. Machina: 7E0AFB:80 Set read breakpoint for 7E0AFB, when shooting arrow: $03/82CE AF FB 0A 00 LDA $000AFB[$00:0AFB] A:0000 X:0008 Y:0000 P:envMxdIZC $03/82D2 29 7F AND #$7F A:0080 X:0008 Y:0000 P:eNvMxdIzC $03/82D4 8F FB 0A 00 STA $000AFB[$00:0AFB] A:0000 X:0008 Y:0000 P:envMxdIZC Deuce's code holds a steady value of 0x80 which results in a higher power shot. Changing the AND #$7F into LDA #$80 will work as two-part GG code: 0382D2:A9 = CB62-6D6A 0382D3:80 = 6D62-6DAA However that requires two codes and there is an easier way to do it. Changing the AND operation to ADC (add with carry) will result in #$80 since the carry register is set. 0382D2:49 = 0B62-640A Resulting in this: $03/82CE AF FB 0A 00 LDA $000AFB[$00:0AFB] A:0000 X:0008 Y:0000 P:envMxdIZC $03/82D2 69 7F ADC #$7F A:0000 X:0008 Y:0000 P:envMxdIZC $03/82D4 8F FB 0A 00 STA $000AFB[$00:0AFB] A:0080 X:0008 Y:0000 P:eNVMxdIzc That way it's only one GG code! :) ========================= Alternate and perhaps better approach: This routine also runs and checks $0AFB before doling out damage: $01/B34C AD FB 0A LDA $0AFB [$01:0AFB] A:0001 X:0B0A Y:B3A0 P:envMxdIzc $01/B34F 29 80 AND #$80 A:0080 X:0B0A Y:B3A0 P:eNvMxdIzc $01/B351 F0 09 BEQ $09 [$B35C] A:0080 X:0B0A Y:B3A0 P:eNvMxdIzc $01/B353 A9 FF LDA #$FF A:0080 X:0B0A Y:B3A0 P:eNvMxdIzc $01/B355 9D 25 00 STA $0025,x[$01:0B2F] A:00FF X:0B0A Y:B3A0 P:eNvMxdIzc ... $01/B35C A9 00 LDA #$00 A:0000 X:0B0A Y:B3A0 P:envMxdIZc $01/B35E 9D 25 00 STA $0025,x[$01:0B2F] A:0000 X:0B0A Y:B3A0 P:envMxdIZc Higher power shots are dished out via $B353, otherwise it skips to $B35C. Changing the branch value will allow for higher power shots: 01B352:00 = DD89-AD60 Works great!
Avatar Sword Wave
DD6A-D7A4
Code:
Looking to port the original code by Deuce X. Machina: 7E00E4:80 Set read breakpoint for 7E00E4: This came up but it was a false lead: $00/9DD4 A5 E4 LDA $E4 [$00:00E4] A:0003 X:08A0 Y:0002 P:envmxdIzc $00/9DD6 29 FF 00 AND #$00FF A:0100 X:08A0 Y:0002 P:envmxdIzc $00/9DD9 D0 01 BNE $01 [$9DDC] A:0000 X:08A0 Y:0002 P:envmxdIZc $00/9DDB 88 DEY A:0000 X:08A0 Y:0002 P:envmxdIZc $00/9DDC 98 TYA A:0000 X:08A0 Y:0001 P:envmxdIzc $00/9DDD 9D 2A 00 STA $002A,x[$00:08CA] A:0001 X:08A0 Y:0001 P:envmxdIzc $00/9DE0 60 RTS A:0001 X:08A0 Y:0001 P:envmxdIzc A closer inspection found this: $00/88CC A5 E4 LDA $E4 [$00:00E4] A:0001 X:08A0 Y:003C P:envMxdIZC $00/88CE F0 03 BEQ $03 [$88D3] A:0000 X:08A0 Y:003C P:envMxdIZC $00/88D3 28 PLP A:0000 X:08A0 Y:003C P:envMxdIZC $00/88D4 38 SEC A:0000 X:08A0 Y:003C P:envmxdIZC Disassembly: $00/88CC A5 E4 LDA $E4 [$00:00E4] A:0000 X:08A0 Y:003C P:envmxdIZC $00/88CE F0 03 BEQ $03 [$88D3] A:0000 X:08A0 Y:003C P:envmxdIZC $00/88D0 28 PLP A:0000 X:08A0 Y:003C P:envmxdIZC $00/88D1 18 CLC A:0000 X:08A0 Y:003C P:envmxdIZC $00/88D2 60 RTS A:0000 X:08A0 Y:003C P:envmxdIZC $00/88D3 28 PLP A:0000 X:08A0 Y:003C P:envmxdIZC $00/88D4 38 SEC A:0000 X:08A0 Y:003C P:envmxdIZC $00/88D5 60 RTS A:0000 X:08A0 Y:003C P:envmxdIZC Skipping over the code at $88D0 prevents the wave from appearing. To prevent skipping that section, change branch value at $88CE to 00: 0088CF:00 = DD6A-D7A4 (Avatar Sword Wave) Works great! :)
Avatar High Jump Codes
High jump while standing
F96B-DF96
Super jump while standing
7D6B-DF96
Ultra jump while standing
1D6B-DF96
Moon jump while standing
CD6B-DF96
High jump while running
F961-DFF6
Super jump while running
7D61-DFF6
Ultra jump while running
1D61-DFF6
Moon jump while running
CD61-DFF6
Code:
Looking at original "Jump to rise into sky" code by CRACKdown: 7E08BC:01
Set write BP for 7E08BC just after jumping:
$00/9972 FE 1C 00 INC $001C,x[$00:08BC] A:FFFB X:08A0 Y:0048 P:eNvmxdIzc
$00/9975 AD A1 00 LDA $00A1 [$00:00A1] A:FFFB X:08A0 Y:0048 P:envmxdIzc
$00/9978 89 40 00 BIT #$0040 A:0000 X:08A0 Y:0048 P:envmxdIZc
$00/997B F0 0B BEQ $0B [$9988] A:0000 X:08A0 Y:0048 P:envmxdIZc
$00/9988 20 2F 8E JSR $8E2F [$00:8E2F] A:0000 X:08A0 Y:0048 P:envmxdIZc
I did a bunch of tracing to find this routine which is part of incrementing the
jump height:
$00/8E6B BD 28 00 LDA $0028,x[$06:08C8] A:0001 X:08A0 Y:0092 P:envmxdIzc
$00/8E6E 2A ROL A A:0900 X:08A0 Y:0092 P:envmxdIzc
$00/8E6F 08 PHP A:1200 X:08A0 Y:0092 P:envmxdIzc
$00/8E70 2A ROL A A:1200 X:08A0 Y:0092 P:envmxdIzc
$00/8E71 B1 A5 LDA ($A5),y[$06:8092] A:2400 X:08A0 Y:0092 P:envmxdIzc
$00/8E73 C8 INY A:FC00 X:08A0 Y:0092 P:eNvmxdIzc
$00/8E74 90 04 BCC $04 [$8E7A] A:FC00 X:08A0 Y:0093 P:envmxdIzc
$00/8E7A 20 97 84 JSR $8497 [$00:8497] A:FC00 X:08A0 Y:0093 P:envmxdIzc
$00/8497 08 PHP A:FC00 X:08A0 Y:0093 P:envmxdIzc
$00/8498 E2 20 SEP #$20 A:FC00 X:08A0 Y:0093 P:envmxdIzc
$00/849A EB XBA A:FC00 X:08A0 Y:0093 P:envMxdIzc
$00/849B A9 00 LDA #$00 A:00FC X:08A0 Y:0093 P:eNvMxdIzc
$00/849D EB XBA A:0000 X:08A0 Y:0093 P:envMxdIZc
$00/849E C9 80 CMP #$80 A:0000 X:08A0 Y:0093 P:envMxdIZc
$00/84A0 90 03 BCC $03 [$84A5] A:0000 X:08A0 Y:0093 P:eNvMxdIzc
$00/84A5 28 PLP A:0000 X:08A0 Y:0093 P:eNvMxdIzc
$00/84A6 60 RTS A:0000 X:08A0 Y:0093 P:envmxdIzc
It seemed to be loading jump height and sprite values from a table starting
around $06:8088.
I broke down the table and it has a discernable format:
$06:8088: 06 00 00 FA
06 01 00 FB
06 01 00 FC
06 02 00 FD
06 03 00 FE
$06:809C 06 06 00 FF
(NOTE: For full breakdown of table, see bottom of this post)
Looking at the second column, it looked like it could be jump heights and sure enough it is.
After much testing I have determined what each value controls:
There are six jumping "positions" (sets of 4 bytes), the game uses values from
the table above to determine the sprite to use, up/down adjust, left/right adjust,
and movement speed.
FIRST DIGIT: Controls which sprite to use. In this case it's all 06 as that's the
jumping sprite. Changing this value will change the graphic used for that jump mode.
SECOND DIGIT: Controls the up/down height adjustment. As the game raises
the Avatar up, each of these values determines how far to move it. Essentially
a higher value = higher jump.
THIRD DIGIT: Controls the left/right horizontal adjustment. All 00 in this case
because this is the table for a straight up/down jump. Setting these values to
something different results in the Avatar moving forward/backward with each jump.
For example jumping when running it's 01 so you move forward.
FOURTH DIGIT: Controls the sprite movement speed. As the jump raises the Avatar up,
it moves slower and slower to simulate the effect of gravity, until the Avatar starts
falling. Setting this to a lower value will cause the sprite to move faster.
At first I just tried modifying the last digit of the last entry, which lead to a
slow, elevator effect style jump. Then I tried increasing the jump height and speed
together to find a "sweet spot". However that would take two GG codes to work.
After loads of experimenting I discovered the best method for a high jump code is
to place the modification to the jump height in the middle of the jump. This will
boost the Avatar in the middle of the jump which is all that is needed for a smooth
high jump code.
068095:15 = F96B-DF96 (High jump while standing)
068095:30 = 7D6B-DF96 (Super jump while standing)
068095:60 = 1D6B-DF96 (Ultra jump while standing)
068095:A0 = CD6B-DF96 (Moon jump while standing)
The table for running jumps starts at $06:805B. I again modified the second digit
of the third entry which gives the player a height boost in the middle of the jump.
068064:15 = F961-DFF6 (High jump while running)
068064:30 = 7D61-DFF6 (Super jump while running)
068064:60 = 1D61-DFF6 (Ultra jump while running)
068064:A0 = CD61-DFF6 (Moon jump while running)
This one took a lot of digging but it was worth it! :)
Angel Infinite HP
C282-D400
Code:
Looking at porting Angel HP code by Deuce X. Machina: 7E0286:?? Set write BP for 7E0286: >$01/B0D9 8D 86 02 STA $0286 [$01:0286] A:0007 X:0BA2 Y:0001 P:envMxdIzC $01/B0DC C2 20 REP #$20 A:0007 X:0BA2 Y:0001 P:envMxdIzC $01/B0DE A9 23 00 LDA #$0023 A:0007 X:0BA2 Y:0001 P:envmxdIzC $01/B0E1 02 00 COP #$00 A:0023 X:0BA2 Y:0001 P:envmxdIzC $00/8526 08 PHP A:0023 X:0BA2 Y:0001 P:envmxdIzC Prevent health decrease by changing STA to LDA: 01B0D9:AD = C282-D400 (Angel Infinite HP) Works great! :)
Get Any Item From Fillmore
Code:
This started out as an attempt to give the Avatar magic before it was attained. I made many attempts at trying to port Deuce X. Machina's Avatar Equipped Magic (7E02AC:??) via various methods. However after not having much success with that I ended up settling on the idea of forcing the item to appear in Fillmore as an offering, thus giving magic. This also took a lot of poking and prodding to figure out how the item could be forced into inventory. In the end it amounts to a) bypassing the check that tells the game there is an offering is available to collect, and b) overriding which offering is given to the player. The way this code works, the item won't actually appear in the list, however when you press B to select the item you will see the proper text appear, and then it will go into your inventory. It works well if you use these codes to obtain items and then save the game. This has the added advantage of being expandable to every offering available. First the game does a check to see if there are offerings present, if not it will exit back to the map. To bypass this check I did some tracing: Offering present: $01/88BB B0 06 BCS $06 [$88C3] A:0201 X:1088 Y:0254 P:envMxdIzC $01/88C3 A0 38 FB LDY #$FB38 A:0201 X:1088 Y:0254 P:envMxdIzC $01/88C6 20 29 8E JSR $8E29 [$01:8E29] A:0201 X:1088 Y:FB38 P:eNvMxdIzC Offering not present: $01/88BB B0 06 BCS $06 [$88C3] A:0200 X:1088 Y:0254 P:envMxdIZc $01/88BD A0 23 FB LDY #$FB23 A:0200 X:1088 Y:0254 P:envMxdIZc $01/88C0 82 C9 00 BRL $00C9 [$898C] A:0200 X:1088 Y:FB23 P:eNvMxdIzc $01/898C 20 29 8E JSR $8E29 [$01:8E29] A:0200 X:1088 Y:FB23 P:eNvMxdIzc At that point, if the carry bit is set/not set determines whether to exit back to the map. Changing the BCS to BRA (branch always) will bypass the check and open an empty menu. 0188BB:80 = 6D68-D4A1 (Master Code 1) In between I found a way to list the item text in the menu, but since I am trying to keep the number of codes to a minimum I figured showing the item text is unnecessary. OPTIONAL: If desired, you can use these codes to list the item text in the menu: 018D04:A9 = CB6D-0FD5 (Item Name in Menu - Master Code) 018D05:?? (see below table for values, use online GG code converter to create code) Interestingly, if you choose two different values (ie: different text than item received) it will save the incorrect item text for the item in your inventory. Kinda neat! Next I did a bunch more traces to end up at the following routine, which is what actually stores the item you choose. Storing the item chosen in player's inventory: $01/890F BD 00 00 LDA $0000,x[$01:024C] A:024C X:024C Y:024C P:envMxdIzc $01/8912 9E 00 00 STZ $0000,x[$01:024C] A:0200 X:024C Y:024C P:envMxdIZc $01/8915 48 PHA A:0200 X:024C Y:024C P:envMxdIZc Here is where we can load an item value of our choosing. Two master codes are necessary, one to change the LDA from indexed to immediate, and another to add a NOP (no operation) to cancel out the third byte of the original LDA instruction. 01890F:A9 = CB6D-07A1 (Master Code 2) 018911:EA = 3C6F-0D01 (Master Code 3) The final code is the slot modifier to choose what item the player is to get: 018910:?? (thanks to Deuce X. Machina for this list) 01: Magical Fire 02: Magical Stardust 03: Magical Aura 04: Magical Light 05: Source of Life 06: Source of Magic 07: Loaf of Bread 08: Wheat 09: Herb 0A: Bridge 0B: Harmonious Music 0C: Ancient Tablet -- unusable 0D: Ancient Tablet 0E: Magic Skull 0F: Sheep's Fleece 10: Bomb! -- unusable 11: Bomb! -- unusable 12: Bomb! 13: Compass 14: Strength of Angel Magical Fire DF6F-0DD1 Magical Stardust D46F-0DD1 Magical Aura D76F-0DD1 Magical Light D06F-0DD1 Source of Life D96F-0DD1 Source of Magic D16F-0DD1 Loaf of Bread D56F-0DD1 Wheat D66F-0DD1 Herb DB6F-0DD1 Bridge DC6F-0DD1 Harmonious Music D86F-0DD1 Ancient Tablet D26F-0DD1 Magic Skull D36F-0DD1 Sheep's Fleece DE6F-0DD1 Bomb! F46F-0DD1 Compass F76F-0DD1 Strength of Angel F06F-0DD1 Works like a charm!
Time Counts Up in Battle Mode
1B8B-DFA8
Code:
This is a simple modification of VisitntX's Infinite Time code (C98B-D468). The Infinite Time code is 02BC9A:A5 which changes the STA into LDA. I figured it would be neat to have time count upward instead, that way at the end of the level there is a bigger time bonus. $02/BC96 38 SEC A:02B0 X:0C20 Y:0000 P:eNvmxdIzc $02/BC97 E9 01 00 SBC #$0001 A:02B0 X:0C20 Y:0000 P:eNvmxdIzc $02/BC9A 85 E6 STA $E6 [$00:00E6] A:02B0 X:0C20 Y:0000 P:eNvmxdIzc Changing SBC to ADC will add time instead of subtracting it. The only thing is it adds 2 seconds at a time instead of 1. This could be fixed with a CLC at $02:BC96 however I figured that was unnecessary. 02BC97:69 = 1B8B-DFA8 (Time Counts Up in Battle Mode)
Use Magic Skull on Any Lair
6DB0-AD65
Code:
Another code that took a lot of tracing to figure out, but I eventually nailed it! I was trying to think of things I'd like to be able to do in SIM mode, like using the Magic Skull on any lair. Normally the game will not let you do this. However there was no easy way to determine where to start digging, so I basically had to go through a ton of trace logs to find what I was after. After several attempts and tons of sifting through logs I found this gem. It came down to the difference between these two routines: When using skull on Red Demon's lair in Bloodpool: $01/9F01 28 PLP A:1001 X:1088 Y:C8F7 P:envMxdIzc $01/9F02 90 03 BCC $03 [$9F07] A:1001 X:1088 Y:C8F7 P:envMxdIzc $01/9F07 C2 20 REP #$20 A:1001 X:1088 Y:C8F7 P:envMxdIzc $01/9F09 AF F9 7B 7F LDA $7F7BF9[$7F:7BF9] A:1001 X:1088 Y:C8F7 P:envmxdIzc $01/9F0D 0A ASL A A:0001 X:1088 Y:C8F7 P:envmxdIzc $01/9F0E 0A ASL A A:0002 X:1088 Y:C8F7 P:envmxdIzc $01/9F0F 0A ASL A A:0004 X:1088 Y:C8F7 P:envmxdIzc $01/9F10 AA TAX A:0008 X:1088 Y:C8F7 P:envmxdIzc $01/9F11 A0 04 00 LDY #$0004 A:0008 X:0008 Y:C8F7 P:envmxdIzc $01/9F14 BF C8 95 7F LDA $7F95C8,x[$7F:95D0] A:0008 X:0008 Y:0004 P:envmxdIzc $01/9F18 30 14 BMI $14 [$9F2E] A:0004 X:0008 Y:0004 P:envmxdIzc $01/9F1A BF 68 95 7F LDA $7F9568,x[$7F:9570] A:0004 X:0008 Y:0004 P:envmxdIzc $01/9F1E CF E1 90 7F CMP $7F90E1[$7F:90E1] A:0004 X:0008 Y:0004 P:envmxdIzc $01/9F22 D0 0A BNE $0A [$9F2E] A:0004 X:0008 Y:0004 P:envmxdIZC $01/9F24 BF 98 95 7F LDA $7F9598,x[$7F:95A0] A:0004 X:0008 Y:0004 P:envmxdIZC $01/9F28 CF E5 90 7F CMP $7F90E5[$7F:90E5] A:0018 X:0008 Y:0004 P:envmxdIzC $01/9F2C F0 0F BEQ $0F [$9F3D] A:0018 X:0008 Y:0004 P:envmxdIZC $01/9F3D C2 20 REP #$20 A:0018 X:0008 Y:0004 P:envmxdIZC $01/9F3F E0 08 00 CPX #$0008 A:0018 X:0008 Y:0004 P:envmxdIZC $01/9F42 F0 0A BEQ $0A [$9F4E] A:0018 X:0008 Y:0004 P:envmxdIZC When using skull on any other lair: $01/9F01 28 PLP A:1001 X:1088 Y:C8F7 P:envMxdIzc $01/9F02 90 03 BCC $03 [$9F07] A:1001 X:1088 Y:C8F7 P:envMxdIzc $01/9F07 C2 20 REP #$20 A:1001 X:1088 Y:C8F7 P:envMxdIzc $01/9F09 AF F9 7B 7F LDA $7F7BF9[$7F:7BF9] A:1001 X:1088 Y:C8F7 P:envmxdIzc $01/9F0D 0A ASL A A:0000 X:1088 Y:C8F7 P:envmxdIZc $01/9F0E 0A ASL A A:0000 X:1088 Y:C8F7 P:envmxdIZc $01/9F0F 0A ASL A A:0000 X:1088 Y:C8F7 P:envmxdIZc $01/9F10 AA TAX A:0000 X:1088 Y:C8F7 P:envmxdIZc $01/9F11 A0 04 00 LDY #$0004 A:0000 X:0000 Y:C8F7 P:envmxdIZc $01/9F14 BF C8 95 7F LDA $7F95C8,x[$7F:95C8] A:0000 X:0000 Y:0004 P:envmxdIzc $01/9F18 30 14 BMI $14 [$9F2E] A:0003 X:0000 Y:0004 P:envmxdIzc $01/9F1A BF 68 95 7F LDA $7F9568,x[$7F:9568] A:0003 X:0000 Y:0004 P:envmxdIzc $01/9F1E CF E1 90 7F CMP $7F90E1[$7F:90E1] A:0000 X:0000 Y:0004 P:envmxdIZc $01/9F22 D0 0A BNE $0A [$9F2E] A:0000 X:0000 Y:0004 P:eNvmxdIzc $01/9F2E E8 INX A:0000 X:0000 Y:0004 P:eNvmxdIzc $01/9F2F E8 INX A:0000 X:0001 Y:0004 P:envmxdIzc $01/9F30 88 DEY A:0000 X:0002 Y:0004 P:envmxdIzc ... (snip), just a loop $01/9F31 D0 E1 BNE $E1 [$9F14] A:0010 X:0006 Y:0001 P:envmxdIzC $01/9F14 BF C8 95 7F LDA $7F95C8,x[$7F:95CE] A:0010 X:0006 Y:0001 P:envmxdIzC $01/9F18 30 14 BMI $14 [$9F2E] A:0005 X:0006 Y:0001 P:envmxdIzC $01/9F1A BF 68 95 7F LDA $7F9568,x[$7F:956E] A:0005 X:0006 Y:0001 P:envmxdIzC $01/9F1E CF E1 90 7F CMP $7F90E1[$7F:90E1] A:0004 X:0006 Y:0001 P:envmxdIzC $01/9F22 D0 0A BNE $0A [$9F2E] A:0004 X:0006 Y:0001 P:envmxdIZC $01/9F24 BF 98 95 7F LDA $7F9598,x[$7F:959E] A:0004 X:0006 Y:0001 P:envmxdIZC $01/9F28 CF E5 90 7F CMP $7F90E5[$7F:90E5] A:0004 X:0006 Y:0001 P:envmxdIzC $01/9F2C F0 0F BEQ $0F [$9F3D] A:0004 X:0006 Y:0001 P:envmxdIZC $01/9F3D C2 20 REP #$20 A:0004 X:0006 Y:0001 P:envmxdIZC $01/9F3F E0 08 00 CPX #$0008 A:0004 X:0006 Y:0001 P:envmxdIZC $01/9F42 F0 0A BEQ $0A [$9F4E] A:0004 X:0006 Y:0001 P:eNvmxdIzc $01/9F44 E2 20 SEP #$20 A:0004 X:0006 Y:0001 P:eNvmxdIzc $01/9F46 A0 7D 8D LDY #$8D7D A:0004 X:0006 Y:0001 P:eNvMxdIzc $01/9F49 22 96 93 01 JSL $019396[$01:9396] A:0004 X:0006 Y:8D7D P:eNvMxdIzc The check at $01:9F3F is what determines what lair you are trying to use it on. So changing the BEQ at $01:9F42 to a BRA will result in the Magic Skull being allowed to be used on any lair. Sweet! 019F42:80 = 6DB0-AD65 (Use Magic Skull on Any Lair) I was extremely thrilled once I found the area to make this work. Unlike most other codes there was no obvious way to dig into a specific area of code, no starting point whatsoever. So I ended up tracing out both instances and voila!
No Monsters in SIM Mode
6D8B-07A3
Code:
For this code I looked at Ugetab's Monster Lairs Empty codes to find the RAM address for the monster lairs. I set a breakpoint for the RAM address that monsters are stored at. The one I used was $7F96BC which is a Fillmore monster lair slot. I found this routine that runs when new monsters spawn and one is removed from the lair: $03/B99C BD B8 96 LDA $96B8,x[$7F:96BC] A:0000 X:0004 Y:0002 P:envmxdIZc $03/B99F F0 78 BEQ $78 [$BA19] A:008D X:0004 Y:0002 P:envmxdIzc $03/B9A1 BC 88 96 LDY $9688,x[$7F:968C] A:008D X:0004 Y:0002 P:envmxdIzc $03/B9A4 DA PHX A:008D X:0004 Y:0B7C P:envmxdIzc $03/B9A5 BB TYX A:008D X:0004 Y:0B7C P:envmxdIzc If there are zero monsters in the lair, none will be spawned. This is checked at $03:B99F. Changing BEQ to BRA will result in no monsters being spawned. 03B99F:80 = 6D8B-07A3 (No Monsters in Sim Mode) Awesome!
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