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Diffstat (limited to '')
4 files changed, 270 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/microblaze/microblaze_fpga/start/start.S b/c/src/lib/libbsp/microblaze/microblaze_fpga/start/start.S new file mode 100644 index 0000000000..bb3dc3dd65 --- /dev/null +++ b/c/src/lib/libbsp/microblaze/microblaze_fpga/start/start.S @@ -0,0 +1,109 @@ +/* Copyright (c) 2001, 2009 Xilinx, Inc. All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + + 1. Redistributions source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + 3. Neither the name of Xilinx nor the names of its contributors may be + used to endorse or promote products derived from this software without + specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS + IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + + XMD load *.elf error: + MicroBlaze Vector Map for standalone executables + + Address Vector type Label + ------- ----------- ------ + + # 0x00 # (-- IMM --) + # 0x04 # Reset _start1 + + # 0x08 # (-- IMM --) + # 0x0c # Software Exception _exception_handler + + # 0x10 # (-- IMM --) + # 0x14 # Hardware Interrupt _interrupt_handler + + # 0x18 # (-- IMM --) + # 0x1C # Breakpoint Exception (-- Don't Care --) + + # 0x20 # (-- IMM --) + # 0x24 # Hardware Exception _hw_exception_handler + +*/ + + + .globl _start + .section .vectors.reset, "ax" + .align 2 + .ent _start + .type _start, @function +_start: + brai _start1 + .end _start + + .section .vectors.sw_exception, "ax" + .align 2 +_vector_sw_exception: + brai _exception_handler + + .section .vectors.interrupt, "ax" + .align 2 +_vector_interrupt: + brai _interrupt_handler + + .section .vectors.hw_exception, "ax" + .align 2 +_vector_hw_exception: + brai _hw_exception_handler + + .section .text + .globl _start1 + .align 2 + .ent _start1 + .type _start1, @function +_start1: + //la r13, r0, _SDA_BASE_ /* Set the Small Data Anchors and the stack pointer */ + //la r2, r0, _SDA2_BASE_ + la r1, r0, bsp_section_stack_begin-16 /* 16 bytes (4 words are needed by crtinit for args and link reg */ + + brlid r15, _crtinit /* Initialize BSS and run program */ + nop + + brlid r15, exit /* Call exit with the return value of main */ + addik r5, r3, 0 + + /* Control does not reach here */ + .end _start1 + + +/* + _exit + Our simple _exit +*/ + .globl _exit + .align 2 + .ent _exit + .type _exit, @function +_exit: + bri 0 + .end _exit diff --git a/c/src/lib/libbsp/microblaze/microblaze_fpga/startup/_exception_handler.S b/c/src/lib/libbsp/microblaze/microblaze_fpga/startup/_exception_handler.S new file mode 100644 index 0000000000..dd9fee22f6 --- /dev/null +++ b/c/src/lib/libbsp/microblaze/microblaze_fpga/startup/_exception_handler.S @@ -0,0 +1,38 @@ +/* Copyright (c) 2001, 2009 Xilinx, Inc. All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + + 1. Redistributions source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + 3. Neither the name of Xilinx nor the names of its contributors may be + used to endorse or promote products derived from this software without + specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS + IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +*/ + + .text + .globl _exception_handler # Exception Handler Label + .align 2 + + _exception_handler: + rtsd r17, 0 + nop diff --git a/c/src/lib/libbsp/microblaze/microblaze_fpga/startup/_interrupt_handler.S b/c/src/lib/libbsp/microblaze/microblaze_fpga/startup/_interrupt_handler.S new file mode 100644 index 0000000000..50326c1a93 --- /dev/null +++ b/c/src/lib/libbsp/microblaze/microblaze_fpga/startup/_interrupt_handler.S @@ -0,0 +1,38 @@ +/* Copyright (c) 2001, 2009 Xilinx, Inc. All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + + 1. Redistributions source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + 3. Neither the name of Xilinx nor the names of its contributors may be + used to endorse or promote products derived from this software without + specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS + IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +*/ + + .text + .globl _interrupt_handler # Interrupt Handler Label + .align 2 + + _interrupt_handler: + rtid r14, 0 + nop diff --git a/c/src/lib/libbsp/microblaze/microblaze_fpga/startup/sim-crtinit.S b/c/src/lib/libbsp/microblaze/microblaze_fpga/startup/sim-crtinit.S new file mode 100644 index 0000000000..0cefb63116 --- /dev/null +++ b/c/src/lib/libbsp/microblaze/microblaze_fpga/startup/sim-crtinit.S @@ -0,0 +1,85 @@ +## Copyright (c) 2015, Hesham Almatary +## Copyright (c) 2001, 2009 Xilinx, Inc. All rights reserved. +## +## Redistribution and use in source and binary forms, with or without +## modification, are permitted provided that the following conditions are +## met: +## +## 1. Redistributions source code must retain the above copyright notice, +## this list of conditions and the following disclaimer. +## +## 2. Redistributions in binary form must reproduce the above copyright +## notice, this list of conditions and the following disclaimer in the +## documentation and/or other materials provided with the distribution. +## +## 3. Neither the name of Xilinx nor the names of its contributors may be +## used to endorse or promote products derived from this software without +## specific prior written permission. +## +## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS +## IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED +## TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +## PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +## HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED +## TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR +## PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF +## LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING +## NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +## SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +# +# +# sim-crtinit.s +# +# Default second stage of C run-time initialization that does not peform +# BSS initialization to zero. Typical use is on a simulator. +# + + .globl _crtinit + .align 2 + .ent _crtinit + +_crtinit: + addi r1, r1, -20 /* Save Link register */ + swi r15, r1, 0 + +#ifndef __rtems__ + brlid r15, _program_init /* Initialize the program */ + nop + + brlid r15, __init /* Invoke language initialization functions */ + nop +#endif + + + /* Init .bss */ + addi r6, r0, bsp_section_bss_begin + addi r7, r0, bsp_section_bss_end + +_clear_bss_loop: + swi r0, r6, 0 + + addi r6, r6, 4 + cmpu r8, r6, r7 + bgti r8, _clear_bss_loop + + addi r6, r0, 0 /* Initialize argc = 1 and argv = NULL and envp = NULL */ + addi r7, r0, 0 + brlid r15, boot_card /* Execute the program */ + addi r5, r0, 0 + + addik r19, r3, 0 /* Save return value */ + +#ifndef __rtems__ + brlid r15, __fini /* Invoke language cleanup functions */ + nop + + brlid r15, _program_clean /* Cleanup the program */ + nop +#endif + + lw r15, r1, r0 /* Return back to CRT */ + addik r3, r19, 0 /* Restore return value */ + rtsd r15, 8 + addi r1, r1, 20 + .end _crtinit |