| Volex TTX2000 S Issue 1.2 | Routines |
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Used by the routines at enter_page, enter_subcode_and_clear, select_channel and telesoftware_number.
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| get_dec_digit | 1155 | PUSH HL | Preserve HL. | |
| get_dec_digit_0 | 1156 | CALL get_keypress | Get a keypress. | |
| 1159 | CP $30 | Loop until key code is greater than or equal to $30 and less than $3A ('0' to '9'). | ||
| 115B | JR C,get_dec_digit_0 | |||
| 115D | CP $3A | |||
| 115F | JR NC,get_dec_digit_0 | |||
| 1161 | POP HL | Restore HL and return. | ||
| 1162 | RET | |||
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