Many externals are used in the DPS-8 C library. These either begin with an underscore character (_), or contain a period (.) in the first 6 characters of their name. Users should avoid creating names of this form, in order to avoid conflicts with library externals.
Many of the external routines are written in assembler.
Below we list some library externals which may be of use.
Incorrect setting of "_tzone" and/or "_isdst" will not cause "localtime" to return the wrong time (assuming the system time is correctly set to the local current time). However, the function "gmtime" will return an incorrect value.
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