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MOTOROLA
M68060 USER’S MANUAL
xxiii
LIST OF TABLES
1-1
1-2
1-3
1-4
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
4-1
4-2
5-1
5-2
5-3
6-1
6-2
6-3
6-4
6-5
6-6
6-7
6-8
6-9
6-10
6-11
6-12
6-13
6-14
6-15
6-16
7-1
7-2
7-3
Data Formats....................................................................................................1-14
Effective Addressing Modes.............................................................................1-15
Instruction Set Summary..................................................................................1-16
Notational Conventions....................................................................................1-21
Signal Index........................................................................................................2-1
Transfer-Type Encoding.....................................................................................2-4
Normal and MOVE16 Access TMx Encoding.....................................................2-5
Alternate Access TMx Encoding ........................................................................2-5
SIZx Encoding....................................................................................................2-6
Data Bus Byte Select Signals.............................................................................2-7
PSTx Encoding.................................................................................................2-14
Signal Summary...............................................................................................2-17
Updating U-Bit and M-Bit for Page Descriptors................................................4-20
SFC and DFC Values.......................................................................................4-20
TLNx Encoding.................................................................................................5-11
Instruction Cache Line State Transitions..........................................................5-15
Data Cache Line State Transitions...................................................................5-18
RND Encoding....................................................................................................6-4
PREC Encoding .................................................................................................6-4
MC68060 FPU Data Formats and Data Types ..................................................6-7
Single-Precision Real Format Summary ............................................................6-8
Double-Precision Real Format Summary...........................................................6-9
Extended-Precision Real Format Summary.....................................................6-10
Packed Decimal Real Format Summary ..........................................................6-11
Floating-Point Condition Code Encoding .........................................................6-16
Floating-Point Conditional Tests ......................................................................6-18
Floating-Point Exception Vectors.....................................................................6-19
Unimplemented Instructions.............................................................................6-20
Possible Operand Errors Exceptions ...............................................................6-27
Overflow Rounding Mode Values.....................................................................6-29
Underflow Rounding Mode Values...................................................................6-31
Possible Divide-by-Zero Exceptions.................................................................6-33
Rounding Mode Values....................................................................................6-34
Data Bus Requirements for Read and Write Cycles..........................................7-7
Summary of Access Types vs. Bus Signal Encoding.........................................7-9
Memory Alignment Influence on Noncachable and
Writethrough Bus Cycles..................................................................................7-12
Interrupt Acknowledge Termination Summary.................................................7-34
Termination Result Summary...........................................................................7-46
MC68040-Arbitration Protocol Transition Conditions.......................................7-55
7-4
7-5
7-6