User`s manual

S-Record Format

D-5

The S0 record is explained as follows:

The first S2 record is explained as follows:

S0 S-record type S0, indicating that it is a header

record for this block of S-records

0A Hexadecimal 0A (decimal 10), indicating that 10

character pairs (or ASCII bytes) follow

0000 Four-character 2-byte address Þeld; hexadecimal

address 0000 (the address Þeld is not used by the

debugger, the debugger ignores this record)

6765745F727463 Module name in ASCII, get_rtc

0D The checksum of this header record

S2 S-record type S2, indicating that it is a code/data

record to be loaded/veriÞed at a 3-byte address

24 Hexadecimal 24 (decimal 36), indicating that 36

character pairs, representing 36 bytes of binary

data, follow

040000 Six-character 3-byte address Þeld; hexadecimal

address 00040000, where the code/data which

follows is to be loaded

7C8402...040024 The next 32 character pairs of the Þrst S2 record are

the ASCII bytes of the actual program code/data.

In this assembly language example, the

hexadecimal opcodes of the program are written in

the sequence in the code/data Þelds of the S2

records:

Address Opcode Instruction

00040000 7C8402A6 MFSPR R4,4

00040004 90830000 STW R4,$0(R3) ($00000000)

00040008 7C8502A6 MFSPR R4,5

0004000C 90830004 STW R4,$4(R3) ($00000004)

00040010 4E800020 BCLR 20,0

00040014 00000000 WORD $00000000