Question: Write a procedure called Str_nextWord that scans a string for the first occurrence of a certain delimiter character and replaces the delimiter with a null

Write a procedure called Str_nextWord that scans a string for the first occurrence of a certain delimiter character and replaces the delimiter with a null byte. There are two input parameters: a pointer to the string and the delimiter character. After the call, if the delimiter was found, the Zero flag is set and EAX contains the offset of the next character beyond the delimiter. Otherwise, the Zero flag is clear and EAX is undefined. The following example code passes the address of target and a comma as the delimiter:

.data target BYTE "Johnson,Calvin",0

.code INVOKE Str_nextWord, ADDR target, ','

jnz notFound In Figure 9-5, after calling Str_nextWord, EAX points to the character following the position where the comma was found (and replaced).

FIGURE 9-5 Str_nextWord example. Null bytes " J 0 h n S

FIGURE 9-5 Str_nextWord example. Null bytes " J 0 h n S 0 n Cal V i n EAX

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