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Notation


The instruction documentation includes shorthand abbreviation for frequently used terms. A table containing the notations and their definitions is below:

Notation Definition
(imm24) The value pointed to by a 24-bit address. The size of the value depends on the instruction.
(imm8) The value pointed to by a 8-bit address. The size of the value depends on the instruction.
(reg24) The value pointed to by the address in a 24-bit register. The size of the value depends on the instruction.
(regi + ofs8) The value pointed to by an address formed by the sum of the 24-bit value of an index register plus an 8-bit signed offset. The size of the value depends on the instruction.
cc Condition code C, NC, Z, NZ, P, M, PO, or PE - tests of single bits in Flags register.
cc' Condition code C, NC, Z, or NZ - tests of single bits in Flags register.
h / l High or low byte of a register pair, respectively.
imm24 24-bit immediate data value.
imm16 16-bit immediate data value.
imm8 8-bit immediate data value.
imm3 3-bit immediate data value.
ofs8 8-bit immediate data value serving as an offset.
reg24 24-bit register pair.
reg16 16-bit register pair.
reg8 8-bit register.
reg8i 8-bit high or low byte of an index register.
regi Index register pair ix or iy.
regir Interrupt vector register i or refresh counter regiser r.