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| projects:vlam:pbcc:pbcc [2011/11/25 12:53] – krivka | projects:vlam:pbcc:pbcc [2017/08/30 12:09] (current) – [Related links] krivka | ||
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| ==== Limits of the compiler ==== | ==== Limits of the compiler ==== | ||
| - | * no linkage - PicoBlaze-3 processsor is so small that linkage has no practical | + | * no linkage - PicoBlaze-3 processsor is so small that linkage has no practical |
| * no standard library - there is no implementation for standard C library such as stdio, string, etc. (most of the functions are just too big to fit into its small memory) | * no standard library - there is no implementation for standard C library such as stdio, string, etc. (most of the functions are just too big to fit into its small memory) | ||
| + | * no dynamic allocation - there is no malloc or free function to do the memory management | ||
| ==== Known bugs ==== | ==== Known bugs ==== | ||
| As the compiler still has many bugs and missing features, it is good to know them: | As the compiler still has many bugs and missing features, it is good to know them: | ||
| - | * Global variables | + | * Global variables |
| * Optimized switch does not work (JUMPTABLE) | * Optimized switch does not work (JUMPTABLE) | ||
| * Missing: Get highest bit, get value at address, pointer set, address of (SDCC iCodes) | * Missing: Get highest bit, get value at address, pointer set, address of (SDCC iCodes) | ||
| * Inlining not supported yet | * Inlining not supported yet | ||
| * Problems with passing array as a function argument | * Problems with passing array as a function argument | ||
| + | * Generated invalid interrupt vector jump code (as a trivial IVT) | ||
| ==== Code Examples ==== | ==== Code Examples ==== | ||
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| * version 2011-10-27 (based on [[http:// | * version 2011-10-27 (based on [[http:// | ||
| * Binary package: {{: | * Binary package: {{: | ||
| - | * Source code: {{: | + | * Source code: {{: |
| - | (GNU GPL v2) | + | |
| * Modifications by [[http:// | * Modifications by [[http:// | ||
| * New command-line argument -o that denotes output file without extension (.hex is added) | * New command-line argument -o that denotes output file without extension (.hex is added) | ||
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| ===== Related links ===== | ===== Related links ===== | ||
| - | * [[http://www.openpicide.org|openPICIDE Homepage]] | + | * [[http:// |
| - | + | * [[http:// | |
| + | * [[http:// | ||
| + | * [[https:// | ||