2 FreeRTOS MCF5235 port - Copyright (C) 2006 Christian Walter.
4 This file is part of the FreeRTOS distribution.
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26 ***************************************************************************
27 See http://www.FreeRTOS.org for documentation, latest information, license
28 and contact details. Please ensure to read the configuration and relevant
29 port sections of the online documentation.
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41 .equ MCF5XXX_RAMBAR_SPV, 0x00000200
42 .equ MCF5XXX_RAMBAR_V, 0x00000001
47 .word 0x2C80 /* write to CSR */
53 /* disable all interrupts on startup. */
56 /* prepare internal SRAM. */
58 ori.l #( MCF5XXX_RAMBAR_SPV | MCF5XXX_RAMBAR_V ), d0
61 /* prepare stack and frame pointer. */
65 /* initialize hardware. */
68 /* zero out the bss section. */
69 move.l #__bss_start, d1
82 /* Relocate the data section. */
83 move.l #__data_load_start, %a0 /* .data in ROM */
84 move.l #copy_start, %a1 /* .data in RAM */
86 /* Test if the two sections overlap. This is the case when we are working
87 * with the debugger and the debugger loads the .data section.
92 /* Have we already copied everything. */
93 cmpa.l #__data_load_end, %a0
101 move.l #__FINI_SECTION__, -(%sp)
105 /* call main(int argc, char *argv[] */
112 /* stop on exit from main. */