HP 15c - Manual (Page 7)

Contents 7
Flags .......................................................................... 92
Examples ....................................................................... 93
Example: Branching and Looping ................................... 93
Example: Flags ............................................................ 95
Further Information .......................................................... 97
GoTo .......................................................................... 97
Looping ...................................................................... 98
Conditional Branching .................................................. 98
Flags .......................................................................... 98
The System Flags: Flags 8 and 9 .................................... 99
Section 9: Subroutines ............................................... 101
The Mechanics ............................................................... 101
GoTo Subroutine and Return .......................................... 101
Subroutine Limits .......................................................... 102
Examples ....................................................................... 102
Further Information .......................................................... 105
The Subroutine Return ................................................... 105
Nested Subroutines ...................................................... 105
Section 10: The Index Register and Loop Control ........... 106
The V and % Keys .................................................... 106
Direct Versus Indirect Data Storage With
The Index Register ..................................................... 106
Indirect Program Control With the Index Register ............. 107
Program Loop Control ................................................... 107
The Mechanics ............................................................... 107
Index Register Storage and Recall .................................. 107
Index Register Arithmetic ............................................... 108
Exchanging the X-Register ............................................. 108
Indirect Branching With V ......................................... 108
Indirect Flag Control With V ...................................... 109
Indirect Display Format Control With V ....................... 109
Loop Control with Counters: I and e .................. 109
Examples ....................................................................... 111
Examples: Register Operations ....................................... 111
Example: Loop Control With s ................................. 112
Example: Display Format Control .................................... 114
Further Information .......................................................... 115
Index Register Contents ................................................. 115