WC32P040-XP4M Просмотр технического описания (PDF) - White Electronic Designs Corporation
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WC32P040-XP4M
White Electronic Designs Corporation
WC32P040-XP4M Datasheet PDF : 23 Pages
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White Electronic Designs
WC32P040-XXM
DATA FORMATS
The WC32P040 supports the basic data formats of the
68000 family. Some data formats apply only to the IU,
some only to the FPU, and some to both. In addition, the
instruction set supports operations on other data formats
such as memory addresses.
DATA FORMATS
Operand Data
Format
Size Supported In
Notes
Bit
1 Bit
IU
—
Bit Field
1-32 Bits IU
Field of Consecutive Bits
Binary-Coded
Decimal (BCD)
8 Bits
IU
Packed: 2 Digits/Byte;
Unpacked: 1 Digit/Byte
Byte Integer
8 Bits IU, FPU
—
Word Integer
16 Bits IU, FPU
—
Long-Word Integer 32 Bits IU, FPU
—
Quad-Word Integer 64 Bits
IU
Any Two Data Registers
16-Byte
128 Bits IU
Memory Only, Aligned to
16-Byte Boundary
Single-Precision Real 32 Bits FPU 1-Bit Sign, 8-Bit Exponent,
23-Bit Fraction
Double-Precision
Real
64 Bits FPU 1-Bit Sign,11-Bit
Exponent, 52-Bit Fraction
Extended-Precision 80 Bits FPU 1-Bit Sign,15-Bit
Real
Exponent, 64-Bit Mantissa
ADDRESSSING
The WC32P040 supports the basic addressing modes of
the 68000 family. The register indirect addressing modes
support postincrement, predecrement, offset, and indexing.
The program counter indirect mode also has indexing and
offset capabilities.
ADDRESSING MODES
Addressing
Register Direct
Data Register Direct
Address Register Direct
Register Indirect
Address Register Indirect
Address Register Indirect with Postincrement
Address Register Indirect with Predecrement
Address Register Indirect with Displacement
Register Indirect with Index
Address Register Indirect with Index (8-Bit Displacement)
Address Register Indirect with Index (Base Displacement)
Memory Indirect
Memory Indirect Postindexed
Memory Indirect Preindexed
Program Counter Indirect with Displacement
Program Counter Indirect with Index
PC Indirect with Index (8-Bit Displacement)
PC Indirect with Index (Base Displacement)
Program Counter Memory Indirect
PC Memory Indirect Postindexed
PC Memory Indirect Preindexed
Absolute
Absolute Short
Absolute Long
Immediate
Syntax
Dn
An
(An)
(An) +
- (An)
(d16,An)
(d8,An,Xn)
(bd,An,Xn)
([bd,An],Xn,od)
([bd,An,Xn],od)
(d16,PC)
(d8,PC,Xn)
(bd,PC,Xn)
([bd,PC],Xn,od)
([bd,PC,Xn],od)
(xxx).W
(xxx).L
#<xxx>
Opcode
ABCD
ADD
ADDA
ADDI
ADDQ
ADDX
AND
ANDI
ANDI to CCR
ANDI to SR
INSTRUCTION SET SUMMARY
Operation
BCD Source + BCD Destination + X Destination
Source + Destination Destination
Source + Destination Destination
Immediate Data + Destination Destination
Immediate Data + Destination Destination
Source + Destination + X Destination
Source Λ Destination Destination
Immediate Data Λ Destination
Source Λ CCR CCR
If supervisor state
then Source Λ SR SR
else TRAP
Destination
Syntax
ABCD Dy,Dx
ABCD -(Ay),-(Ax)
ADD <ea>,Dn
ADD Dn,<ea>
ADDA <ea>,An
ADDI #<data>,<ea>
ADDQ #<data>,<ea>
ADDX Dy,Dx
ADDX -(Ay),-(Ax)
AND <ea>,Dn
AND Dn,<ea>
ANDI #<data>,<ea>
ANDI #<data>,CCR
ANDI #<data>,SR
July 1998
4
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
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