HP 12C Financial 0012C-90001, 12C Financial 12C#ABA, 12C Financial F2231AA#ABA nn, nn, ?=1, gi00, 43,33, nn- 44, Keycode, Instruction, Section 8: Programming Basics, Identifying Instructions in Program Lines

Section 8: Programming Basics 91

Identifying Instructions in Program Lines

Each key on the hp 12c keyboard — except for the digit keys 0 through 9 — is identified by a two-digit “keycode” that corresponds to the key’s position on the keyboard. The first digit in the keycode is the number of the key row, counting from row 1 at the top; the second digit is the number of the key in that row, counting from 1 for the first key in the row through 9 for the ninth key in the row and 0 for the tenth key in the row. The keycode for each digit key is simply the digit on the key. Thus, when you keyed the instruction b into program memory, the calculator displayed

04– 25

This indicates that the key for the instruction in program line 04 is in the second row on the keyboard and is the fifth key in that row: the bkey. When you keyed the instruction +into program memory, the calculator displayed

07– 40

This indicates that the key for the instruction in program line 07 is in the fourth row on the keyboard and is the tenth key in that row: the +key. When you keyed the digit 5 into program memory, the keycode displayed was only the digit 5.

Since keystroke sequences beginning with f, g, ?, :, and iare stored in only one program line, the display of that line would show the keycodes for all the keys in the keystroke sequence.

Instruction	Keycode
gÒ	nn-	43	26
?=1	nn- 44 40		1
gi00	nn-	43,33	00

File name: hp 12c_user's guide_English_HDPMBF12E44	Page: 91 of 209
Printered Date: 2005/7/29	Dimension: 14.8 cm x 21 cm