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* Opcode: '''0x87'''
* Short name: '''MINUS'''
* Long name: Subtraction (8-bit)
==== Memory layout ====
{| border="1" cellspacing="1" cellpadding="3" style="border: 1px solid black; border-collapse: collapse;"
! width="40" | 0x87
! width="40" | ''D/S''
! width="40" | ''Dest''
! width="40" | ''Oper''
|}
==== Arguments ====
* '''const Bit[4]''' ''D'': Destination bank
* '''const Bit[4]''' ''S'': Source bank
* '''const UByte''' ''Dest'': The destination variable, to which the operand is subtracted.
* '''const UByte''' ''Oper'': The operand to be subtracted from the destination.
==== Description ====
Subtracts two numbers and stores the result back into “Destâ€. The result of the subtraction wraps around into the range of 0-255.
If the Source Bank is 0 then the “Oper†is subtracted from the destination value.
If the Source Bank is an 8 bit bank, then the “Oper†is the address in that bank where the operand is.
* Short name: '''MINUS'''
* Long name: Subtraction (8-bit)
==== Memory layout ====
{| border="1" cellspacing="1" cellpadding="3" style="border: 1px solid black; border-collapse: collapse;"
! width="40" | 0x87
! width="40" | ''D/S''
! width="40" | ''Dest''
! width="40" | ''Oper''
|}
==== Arguments ====
* '''const Bit[4]''' ''D'': Destination bank
* '''const Bit[4]''' ''S'': Source bank
* '''const UByte''' ''Dest'': The destination variable, to which the operand is subtracted.
* '''const UByte''' ''Oper'': The operand to be subtracted from the destination.
==== Description ====
Subtracts two numbers and stores the result back into “Destâ€. The result of the subtraction wraps around into the range of 0-255.
If the Source Bank is 0 then the “Oper†is subtracted from the destination value.
If the Source Bank is an 8 bit bank, then the “Oper†is the address in that bank where the operand is.
