HP 15C User Manual Page 90

  • Download
  • Add to my manuals
  • Print
  • Page
    / 288
  • Table of contents
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 89
90
Section 8
Program Branching
and Controls
Although the instructions in a program are normally executed sequentially,
it is often desirable to transfer execution to a part of the program other than
the next line. Branching in the HP-15C may be simple, or it may depend on
a certain condition. By branching to a previous line, it is possible to execute
part of a program more than once a process called looping.
The Mechanics
Branching
The Go To (t) Instruction. Simple branching that is, unconditional
branching is carried out with the instruction t label. In a running
program, t will transfer execution to the next appropriately labeled
program or routine (not to a line number).
The calculator searches forward in memory, wrapping around through line
000 if necessary, and resumes execution at the first line containing the
proper label.
Looping. If a t instruction specifies a label at a lower-numbered line
(that is, a prior line), the series of instructions between the t and the
label will be executed repeatedly possibly indefinitely. The continuation
Page view 89
1 2 ... 85 86 87 88 89 90 91 92 93 94 95 ... 287 288

Comments to this Manuals

No comments