HP 15c Scientific Section 9: Subroutines

	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: Iand 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