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Using the 162Bug Debugger
Floating Point Support
4
1_FF_7FFFFF
1_7FF_FFFFFFFFFFFFF
-3.12345678901234501_E+123
4-18
The floating point unit (FPU) of the MC68040 microprocessor chip
is supported in 162Bug. The
been extended to allow display and modification of floating point
data in registers and in memory. Floating point instructions can be
assembled and disassembled with the
commands.
and
for floating point registers accept the floating point
RM
RS
value in Double Precision Real Format or Scientific Notation.
Valid data types that can be used when modifying a floating point
data register or a floating point memory location:
Integer Data Types
12
1234
12345678
Floating Point Data Types
When entering data in single or double precision, you must observe
the following rules:
1. The sign field is the first field and is a binary field.
2. The exponent field is the second field and is a hexadecimal
field.
3. The mantissa field is the last field and is a hexadecimal field.
,
,
, and
MD
MM
RM
option of the
DI
Byte
Word
Longword
Single Precision Real Format
Double Precision Real Format
Scientific Notation Format (decimal)
commands have
RS
and
MD
MM
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