Avago Technologies LSI53C1010 - Manual (Page 142)

5-4 The NASM Output File
A PROC label generates separate arrays of SCRIPTS instructions for
each PROC occurrence. An Entry specification generates a “C” language
#define equal to the number of bytes between this entry and the
beginning of the first code array. The #define offset is not relative to the
array in which it appears, but is relative to the first code array created. In
the example shown in
Table 5.1 , the first SCRIPTS instruction for INC_A
is located 40 (hex) bytes after the location of MAIN[ ].