Format - Motorola MC68030 User Manual

The following notations are used in this section. In the operand syntax statements of the
instruction definitions, the operand on the right is the destination operand.
An = any address register, A7–A0
Dn = any data register, D7–D0
Rn = any address or data register
CCR = condition code register (lower byte of status register)
cc = condition codes from CCR
SR = status register
SP = active stack pointer
USP = user stack pointer
ISP = supervisor/interrupt stack pointer
MSP = supervisor/master stack pointer
SSP = supervisor (master or interrupt) stack pointer
DFC = destination function code register
SFC = source function code register
Rc = control register (VBR, SFC, DFC, CACR)
MRc
MMUSR = MMU status register
B, W, L = specifies a signed integer data type (twos complement) of
FPm, FPn = any floating-point data register, FP7-FP0
PFcr
〈 ea 〉 = effective address
list = list of registers, for example D3 — D0
# 〈 data 〉 = immediate data; a literal integer
{offset:width} = bit field selection
label = assemble program label
[m] = bit m of an operand
[m:n] = bits m through n of operand
MOTOROLA
= MMU control register (SRP, URP, TC, DTT0, DTT1, ITT0,
ITT1, MMUSR)
byte, word, or long word
S = single-precision real data format (32 bits)
D = double-precision real data format (64 bits)
X = extended-precision real data format (96 bits, 16 bits unused)
P = packed BCD real data format (96 bits, 12 bytes)
= floating-point system control register (FPCR, FPSR, or
FPIAR)
k = a twos-complement signed integer (–64 to +17) that specifies
the format of a number to be stored in the packed BCD format
d = displacement; d
MC68030 USER'S MANUAL
is a 16-bit displacement
16
Instruction Set Summary
3-3