Chapter 8. Assembler Directives

69

immediately before the next label. This secondary jump table is preceded by a short jump to the first

byte after the secondary table. This short jump prevents the flow of control from accidentally falling

into the new table. Inside the table is a long jump to

sym2

. The original

.word

contains

sym1

minus

the address of the long jump to

sym2

.

If there were several occurrences of

.word sym1 sym2

before the secondary jump table, all of them

are adjusted. If there was a

.word sym3 sym4

, that also did not fit in sixteen bits, a long jump to

sym4

is included in the secondary jump table, and the

.word

directives are adjusted to contain

sym3

minus the address of the long jump to

sym4

; and so on, for as many entries in the original jump table

as necessary.

8.102. Deprecated Directives

.abort

.line

One day these directives won't work. They are included for compatibility with older assemblers.