Motorola MVME2700 Series Manuel d'utilisateur télécharger pdf (Page 74)

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2-12 Computer Group Literature Center Web Site

Using the Debugger

Note that on a restoration context switch, registers whose perspectives

feature MMU characteristics and operating modes of the MPU are not

restored. The debugger honors the user’s MMU configuration. If the user’s

program wishes to utilize the programmatic interface (i.e., system calls) of

the debugger, it must maintain the address translation of 1 to 1, and the I/O

resources utilized by the debugger must be data cache inhibited.

Floating Point Support

The MD and MM commands allow display and modification of floating

point data in memory. Use either the MD command or the MM command

to assemble or disassemble floating point instructions.

Valid data types that can be used when modifying a floating point data

When entering data in single or double precision format, observe the

following rules:

❏ The sign field is the first field and is a binary field.

IP Instruction Pointer, copied to SPR26

MSR Machine State Register, copied to SPR27

CR Condition Register

FPSCR Floating Point Status/Control Register

Integer Data Types

Byte 12

Half-Word 1234

Word 12345678

Floating Point Data Types

Single Precision Real 1_FF_7FFFFF

Double Precision Real 1_7FF_FFFFFFFFFFFFF

Scientific Notation

(decimal)

-3.12345678901234501_E+123

1 2 ... 69 70 71 72 73 74 75 76 77 78 79 ... 507 508

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Motorola MVME2700 Series Manuel d'utilisateur Page 74

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