SW500010 Microchip Technology, SW500010 Datasheet - Page 75

• Manufacturer Part Number: SW500010
• Description: HI-TECH C PRO FOR PIC10/12/16
• Manufacturer: Microchip Technology
• Type: Compilerr
• Series: PIC10/12/16r

Specifications of SW500010

• Supported Families: PIC10, PIC12, PIC16
• Core Architecture: PIC
• Software Edition: Professional
• Kit Contents: Software And Docs
• Mcu Supported Families: PIC10/12/16
• Tool Type: Compiler
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• For Use With/related Products: PIC10, PIC12, PIC14, PIC16, PIC16E
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 019P; 778-1006; 778-1006

C Language Features
assigned the pointer with the string "hello world".
3.3.2 Bit Data Types and Variables
HI-TECH C PRO for the PIC10/12/16 MCU Familysupports bit integral types which can hold the
values 0 or 1. Single bit variables may be declared using the keyword bit. bit objects declared
within a function, for example:
will be allocated in the bit-addressable psect rbit, and will be visible only in that function. When
the following declaration is used outside any function:
init_flag will be globally visible, but located within the same psect.
by using the bit keyword in the functions prototype in the usual way. The bit return value will be
returning in the carry flag in the status register.
only contain the values 0 and 1, and therefore provide a convenient and efficient method of storing
boolean flags without consuming large amounts of internal RAM. It is, however, not possible to
declared pointers to bit variables or statically initialise bit variables.
ever possible, thus the generated code to access bit objects is very efficient.
used. For example, if the bit variable bitvar was assigned as in the following:
it will be cleared by the assignment since the least significant bit of data is zero. If you want to set
a bit variable to be 0 or 1 depending on whether the larger integral type is zero (false) or non-zero
(true), use the form:
Bit variables cannot be auto or parameters to a function. A function may return a bit object
Bit variables behave in most respects like normal unsigned char variables, but they may
Operations on bit objects are performed using the single bit instructions (bsf and bcf) wher-
Note that when assigning a larger integral type to a bit variable, only the least-significant bit is
const char * cp = "hello " "world";
static bit init_flag;
bit init_flag;
int data = 0x54;
bit bitvar;
bitvar = data;
bitvar = data != 0;
Supported Data Types and Variables
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