FF7/Field/Script/Opcodes/9B HBYTE

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Revision as of 20:35, 7 September 2006 by my_wiki>Synergy Blades
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  • Opcode: 0x9B
  • Short name: HBYTE
  • Long name: High Byte

Memory layout

0x9A D / S DA SA or LB 0 or HB

Arguments

  • const Bit[4] D: Destination bank.
  • const Bit[4] S: Source bank.
  • const UByte DA: Destination address.
  • const UByte SA: Source address, or the lower byte of the given word, if source bank is zero.
  • const UByte 0: Zero, or the higher byte of the given word, if source bank is zero.

Description

Retrieves the high byte of a two-byte word from the source bank and address, and places the byte value into the destination bank and address. If the source bank is zero, then the final two arguments are actually a given two-byte word value, and the high byte value is retrieved from this word instead of from a memory address.

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