User:Zeroman/Write to WRAM using the item pack

This setup requires two glitch items: 4F (0x59) for both Pokémon Red, Blue, and Yellow and item 0x6B for Pokémon Red and Blue or (what better item for Pokémon Yellow)?

= Write to memory

Reset the value and address

This is used to reset the address and value you wanna write (to). It resets the address and value to DFFF and FF, respectively.

The item bag

As items:

• item 1: 4F (0x59), x255
• item 2: item 0x6B, x255
• item 3: Carbos (0x26), x(first byte of address)
• item 4: X Accuracy (0x2E), x(second byte of address)
• item 5: Lemonade (0x3E), x(value)
• item 6: Item 0x77, x201
• item 7: Carbos (0x26), x211
• item 8: X Accuracy (0x2E), x255
• item 9: Lemonade (0x3E), x255
• item 10: TM01 (0xC9), x(any, but preferably 99)

END OF LIST

As ASM instructions: At DA65: jp D322

At CD35: jp D32A

At D322 (load the value of register a into register hl; "write value you want to write to address you want to write to."):

• ld h, $DF
• ld l, $FF
• ld a, $FF
• ld (hl), a
• ret

At D32A (reset function):

• ld h, $D3
• ld l, $22
• ld a, $DF
• ld (hl), a
• ld h, $D3
• ld l, $23
• ld a, $FF
• ld (hl), a
• ld h, $D3
• ld l, $24
• ld a, $FF
• ret

As HEX bytes:

At $DA65/$DA64:

• C3 22 D3

At $CD35 (Pokémon Red and Blue only):

• C3 2A D3