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ARMulator Reference

Reading the memory statistics

To read the memory statistics use the command:

print $memory_statistics

print $memstats

is a short version of

print $memory_statistics

Example 4-1 shows the form of reports given.

Example 4-1

address name W acc R(N/S) W(N/S) reads(N/S) writes(N/S) time (ns)

00000000 Dummy 4 - 1/1 1/1 0/0 0/0 0

7FFF8000 Stack 2 rw 150/100 150/100 9290/10590 4542/11688 8538300

00010000 DRAM 2 rw 150/100 150/100 18817/18 11031/140 8915800

00008000 ROM 2 r 100/100 100/100 48638/176292 0/0 44817000

00000000 SRAM 4 rw 1/1 1/1 0/0 0/0 0

The report in Example 4-1 shows that:

• ROM access is critical to this application. Consider using faster ROM, using

burst-capable ROM, or making the ROM wider (32 bits).

• No use was made of SRAM at

0x0

. Consider locating the stack, or other data at

0x0

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ARM VERSION 1.2 Fiche technique Page 122