Samsung S3C8275X - Manual (Page 143)

S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X INSTRUCTION SET
6-9
Table 6-4. Instruction Notation Conventions
Notation Description Actual Operand Range
cc Condition code See list of condition codes in Table 6-6.
r Working register only Rn (n = 0
−15)
rb Bit (b) of working register Rn.b (n = 0
−15, b = 0−7)
r0 Bit 0 (LSB) of working register Rn (n = 0
−15)
rr Working register pair RRp (p = 0, 2, 4, ..., 14)
R Register or working register reg or Rn (reg = 0
−255, n = 0−15)
Rb Bit 'b' of register or working register reg.b (reg = 0
−255, b = 0−7)
RR Register pair or working register pair reg or RRp (reg = 0
−254, even number only, where
p = 0, 2, ..., 14)
IA Indirect addressing mode addr (addr = 0–254, even number only)
Ir Indirect working register only @Rn (n = 0
−15)
IR Indirect register or indirect working register @Rn or @reg (reg = 0
−255, n = 0−15)
Irr Indirect working register pair only @RRp (p = 0, 2, ..., 14)
IRR Indirect register pair or indirect working
register pair @RRp or @reg (reg = 0
−254, even only, where
p = 0, 2, ..., 14)
X Indexed addressing mode #reg [Rn] (reg = 0
−255, n = 0−15)
XS Indexed (short offset) addressing mode #addr [RRp] (addr = range
−128 to +127, where
p = 0, 2, ..., 14)
xl Indexed (long offset) addressing mode #addr [RRp] (addr = range 0
−65535, where
p = 0, 2, ..., 14)
da Direct addressing mode addr (addr = range 0
−65535)
ra Relative addressing mode addr (addr = number in the range +127 to
−128 that is
an offset relative to the address of the next instruction)
im Immediate addressing mode #data (data = 0
−255)
iml Immediate (long) addressing mode #data (data = range 0
−65535)