# Vault 7: Projects

This publication series is about specific projects related to the Vault 7 main publication.

### Protego

# MPLAB XC16 C-Compiler

- 1
- 2
…
- 166
- 167
- 168
- 169
- 170
…
- 365
- 366

MPLAB
®
XC16 C Compiler Users Guide
DS50002071C-page 168  2012-2013 Microchip Technology Inc.
10.12 MEMORY MODELS
The compiler supports several memory models. Command-line options are available
for selecting the optimum memory model for your application, based on the specific
device that you are using and the type of memory usage.
TABLE 10-1: MEMORY MODEL COMMAND LINE OPTIONS
The command-line options apply globally to the modules being compiled. Individual
variables and functions can be declared as near, far or in eds to better control the
code generation. For information on setting individual variable or function attributes,
see Section 8.12 Variable Attributes and Section 13.2.1 Function Specifiers.
Option Memory Definition Description
-msmall-data Up to 8 KB of data memory.
This is the default.
Permits use of PIC18 like instructions
for accessing data memory.
-msmall-scalar Up to 8 KB of data memory.
This is the default.
Permits use of PIC18 like instructions
for accessing scalars in data memory.
-mlarge-data Greater than 8 KB of data
memory.
Uses indirection for data references.
-msmall-code Up to 32 kWords of program
memory. This is the default.
Function pointers will not go through a
jump table. Function calls use RCALL
instruction.
-mlarge-code Greater than 32 kWords of
program memory.
Function pointers might go through a
jump table. Function calls use CALL
instruction.
-mconst-in-data Constants located in data
memory.
Values copied from program memory
by startup code.
-mconst-in-code Constants located in program
memory. This is the default.
Values are accessed via Program
Space Visibility (PSV) data window.
-mconst-in-aux-
flash
Constants in auxiliary FLASH Values are accessed via Program
Space visibility window.

- 1
- 2
…
- 166
- 167
- 168
- 169
- 170
…
- 365
- 366