[sedwards] 66: did not notice this has older style BSD license. Removed until we can contact vendor about dual license
did not notice this has older style BSD license. Removed until we can contact vendor about dual license Deleted: trunk/reactos/boot/freeldr/bootsect/ofwboot.s _____
Deleted: trunk/reactos/boot/freeldr/bootsect/ofwboot.s --- trunk/reactos/boot/freeldr/bootsect/ofwboot.s 2006-01-31 19:04:20 UTC (rev 65) +++ trunk/reactos/boot/freeldr/bootsect/ofwboot.s 2006-01-31 19:09:28 UTC (rev 66) @@ -1,1242 +0,0 @@
- .section .text -_start: - .long 0xe00000 + 12 - .long 0 - .long 0 - -/* - * LIFTED FROM arch/macppc/stand/ofwboot/Locore.c - * Copyright (C) 1995, 1996 Wolfgang Solfrank. - * Copyright (C) 1995, 1996 TooLs GmbH. - * 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 of 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. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by TooLs GmbH. - * 4. The name of TooLs GmbH may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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. - */ - -_begin: - sync - isync - - lis %r1,stack@ha - addi %r1,%r1,stack@l - addi %r1,%r1,16384 - 0x10 - - mfmsr %r8 - li %r0,0 - mtmsr %r0 - isync - - mtibatu 0,%r0 - mtibatu 1,%r0 - mtibatu 2,%r0 - mtibatu 3,%r0 - mtdbatu 0,%r0 - mtdbatu 1,%r0 - mtdbatu 2,%r0 - mtdbatu 3,%r0 - - li %r9,0x12 /* BATL(0, BAT_M, BAT_PP_RW) */ - mtibatl 0,%r9 - mtdbatl 0,%r9 - li %r10,0x1ffe /* BATU(0, BAT_BL_256M, BAT_Vs) */ - mtibatu 0,%r10 - mtdbatu 0,%r10 - - isync - - li %r8,0x3030 - mtmsr %r8 - - /* Store ofw call addr */ - mr %r21,%r5 - lis %r10,0xe00000@ha - stw %r5,ofw_call_addr - _start@l(%r10) - - lis %r4,_binary_freeldr_tmp_end@ha - addi %r4,%r4,_binary_freeldr_tmp_end@l - lis %r3,_binary_freeldr_tmp_start@ha - addi %r3,%r3,_binary_freeldr_tmp_start@l - - lis %r5,0x8000@ha - addi %r5,%r5,0x8000@l - - bl copy_bits - - bl zero_registers - - lis %r3,0xe00000@ha - addi %r3,%r3,freeldr_banner - _start - - bl ofw_print_string - - bl ofw_print_eol - - bl setup_exc - - /* Zero CTR */ - mtcr %r31 - - lis %r3,0x8000@ha - addi %r3,%r3,0x8000@l - - mtlr %r3 - - lis %r3,call_ofw@ha - addi %r3,%r3,call_ofw - _start - - b call_freeldr - - .align 4 -call_freeldr: - /* Get the address of the functions list -- - * Note: - * Because of little endian switch we must use an even number of - * instructions here.. Pad with a nop if needed. */ - mfmsr %r10 - ori %r10,%r10,1 - mtmsr %r10 - - nop - - /* Note that this is little-endian from here on */ - blr - nop - - .align 4 -call_ofw: - /* R3 has the function offset to call (n * 4) - * Other arg registers are unchanged. - * Note that these 4 instructions are in reverse order due to - * little-endian convention */ - andi. %r0,%r0,65534 - mfmsr %r0 - mtmsr %r0 - /* Now normal ordering resumes */ - subi %r1,%r1,0x100 - - stw %r8,4(%r1) - stw %r9,8(%r1) - stw %r10,12(%r1) - mflr %r8 - stw %r8,16(%r1) - - lis %r10,0xe00000@ha - add %r9,%r3,%r10 - lwz %r3,ofw_functions - _start@l(%r9) - mtctr %r3 - - mr %r3,%r4 - mr %r4,%r5 - mr %r5,%r6 - mr %r6,%r7 - mr %r7,%r8 - - /* Goto the swapped function */ - bctrl - - lwz %r8,16(%r1) - mtlr %r8 - - lwz %r8,4(%r1) - lwz %r9,8(%r1) - lwz %r10,12(%r1) - - addi %r1,%r1,0x100 - /* Ok, go back to little endian */ - mfmsr %r0 - ori %r0,%r0,1 - mtmsr %r0 - - /* Note that this is little-endian from here on */ - blr - nop - -zero_registers: - xor %r2,%r2,%r2 - mr %r0,%r2 - mr %r3,%r2 - - mr %r4,%r2 - mr %r5,%r2 - mr %r6,%r2 - mr %r7,%r2 - - mr %r8,%r2 - mr %r9,%r2 - mr %r10,%r2 - mr %r11,%r2 - - mr %r12,%r2 - mr %r13,%r2 - mr %r14,%r2 - mr %r15,%r2 - - mr %r12,%r2 - mr %r13,%r2 - mr %r14,%r2 - mr %r15,%r2 - - mr %r16,%r2 - mr %r17,%r2 - mr %r18,%r2 - mr %r19,%r2 - - mr %r20,%r2 - mr %r21,%r2 - mr %r22,%r2 - mr %r23,%r2 - - mr %r24,%r2 - mr %r25,%r2 - mr %r26,%r2 - mr %r27,%r2 - - mr %r28,%r2 - mr %r29,%r2 - mr %r30,%r2 - mr %r31,%r2 - - blr - -prim_strlen: - mr %r5,%r3 -prim_strlen_loop: - lbz %r4,0(%r3) - cmpi 0,0,%r4,0 - beq prim_strlen_done - addi %r3,%r3,1 - b prim_strlen_loop - -prim_strlen_done: - sub %r3,%r3,%r5 - blr - -copy_bits: - cmp 0,0,%r3,%r4 - beqlr - lwz %r6,0(%r3) - stw %r6,0(%r5) - addi %r3,%r3,4 - addi %r5,%r5,4 - b copy_bits - -ofw_print_string_hook: - bl ofw_print_number - bl ofw_exit - -ofw_print_string: - /* Reserve some stack space */ - subi %r1,%r1,32 - - /* Save args */ - stw %r3,0(%r1) - - /* Save the lr, a scratch register */ - stw %r8,8(%r1) - mflr %r8 - stw %r8,12(%r1) - - /* Load the package name */ - lis %r3,0xe00000@ha - addi %r3,%r3,ofw_chosen_name - _start - - /* Fire */ - bl ofw_finddevice - - /* Load up for getprop */ - stw %r3,16(%r1) - - lis %r4,0xe00000@ha - addi %r4,%r4,ofw_stdout_name - _start - - addi %r5,%r1,20 - - li %r6,4 - - bl ofw_getprop - - /* Measure the string and remember the length */ - lwz %r3,0(%r1) - bl prim_strlen - mr %r5,%r3 - - lwz %r3,20(%r1) - lwz %r4,0(%r1) - - /* Write the string */ - bl ofw_write - - /* Return */ - lwz %r8,12(%r1) - mtlr %r8 - lwz %r8,8(%r1) - - addi %r1,%r1,32 - blr - - /* Print 8 hex digits representing a number in r3 */ -ofw_print_number: - subi %r1,%r1,32 - stw %r8,0(%r1) - mflr %r8 - stw %r8,4(%r1) - stw %r9,8(%r1) - - xor %r9,%r9,%r9 - stw %r9,12(%r1) - - /* Set up and, devide, shift */ - mr %r8,%r3 - lis %r6,0xf0000000@ha - lis %r7,0x10000000@ha - li %r9,8 - -ofw_number_loop: - nop - cmpi 0,0,%r9,0 - beq ofw_number_return - subi %r9,%r9,1 - - /* Body: isolate digit, divide, print */ - and %r5,%r6,%r8 - divwu %r4,%r5,%r7 - srwi %r6,%r6,4 - srwi %r7,%r7,4 - - nop - - cmpi 0,0,%r4,10 - bge ofw_number_letter - addi %r4,%r4,'0' - b ofw_number_digit_out - -ofw_number_letter: - addi %r4,%r4,'A' - 10 - -ofw_number_digit_out: - stb %r4,12(%r1) - addi %r3,%r1,12 - - stw %r6,16(%r1) - stw %r7,20(%r1) - stw %r8,24(%r1) - stw %r9,28(%r1) - - bl ofw_print_string - - lwz %r6,16(%r1) - lwz %r7,20(%r1) - lwz %r8,24(%r1) - lwz %r9,28(%r1) - - b ofw_number_loop - -ofw_number_return: - /* Return */ - lwz %r9,8(%r1) - lwz %r8,4(%r1) - mtlr %r8 - lwz %r8,0(%r1) - addi %r1,%r1,32 - blr - -ofw_print_eol: - subi %r1,%r1,16 - stw %r8,0(%r1) - mflr %r8 - stw %r8,4(%r1) - li %r4,0x0d0a - sth %r4,8(%r1) - xor %r4,%r4,%r4 - sth %r4,10(%r1) - addi %r3,%r1,8 - bl ofw_print_string - lwz %r8,4(%r1) - mtlr %r8 - lwz %r8,0(%r1) - addi %r1,%r1,16 - blr - -ofw_print_nothing: - subi %r1,%r1,16 - stw %r8,0(%r1) - mflr %r8 - stw %r8,4(%r1) - li %r4,0 - sth %r4,8(%r1) - xor %r4,%r4,%r4 - sth %r4,10(%r1) - addi %r3,%r1,8 - bl ofw_print_string - lwz %r8,4(%r1) - mtlr %r8 - lwz %r8,0(%r1) - addi %r1,%r1,16 - blr - -ofw_print_space: - subi %r1,%r1,16 - stw %r8,0(%r1) - mflr %r8 - stw %r8,4(%r1) - li %r4,0x2000 - sth %r4,8(%r1) - xor %r4,%r4,%r4 - sth %r4,10(%r1) - addi %r3,%r1,8 - bl ofw_print_string - lwz %r8,4(%r1) - mtlr %r8 - lwz %r8,0(%r1) - addi %r1,%r1,16 - blr - -ofw_print_regs: - /* Construct ofw exit call */ - subi %r1,%r1,0xa0 - - stw %r0,0(%r1) - stw %r1,4(%r1) - stw %r2,8(%r1) - stw %r3,12(%r1) - - stw %r4,16(%r1) - stw %r5,20(%r1) - stw %r6,24(%r1) - stw %r7,28(%r1) - - stw %r8,32(%r1) - stw %r9,36(%r1) - stw %r10,40(%r1) - stw %r11,44(%r1) - - stw %r12,48(%r1) - stw %r13,52(%r1) - stw %r14,56(%r1) - stw %r15,60(%r1) - - stw %r16,64(%r1) - stw %r17,68(%r1) - stw %r18,72(%r1) - stw %r19,76(%r1) - - stw %r20,80(%r1) - stw %r21,84(%r1) - stw %r22,88(%r1) - stw %r23,92(%r1) - - stw %r24,96(%r1) - stw %r25,100(%r1) - stw %r26,104(%r1) - stw %r27,108(%r1) - - stw %r28,112(%r1) - stw %r29,116(%r1) - stw %r30,120(%r1) - stw %r31,124(%r1) - - mflr %r0 - stw %r0,128(%r1) - mfcr %r0 - stw %r0,132(%r1) - mfctr %r0 - stw %r0,136(%r1) - mfmsr %r0 - stw %r0,140(%r1) - - /* Count at zero */ - xor %r0,%r0,%r0 - stw %r0,144(%r1) - mr %r3,%r1 - stw %r3,148(%r1) - - /* Body, print the regname, then the register */ -ofw_register_loop: - lwz %r3,144(%r1) - cmpi 0,0,%r3,32 - beq ofw_register_special - lis %r3,0xe00000@ha - addi %r3,%r3,freeldr_reg_init - _start - bl ofw_print_string - lwz %r3,144(%r1) - bl ofw_print_number - bl ofw_print_space - lwz %r3,144(%r1) - mulli %r3,%r3,4 - add %r3,%r1,%r3 - lwz %r3,0(%r3) - stw %r3,152(%r1) - bl ofw_print_number - lwz %r3,144(%r1) - addi %r3,%r3,1 - stw %r3,144(%r1) - b done_dump - -dump_optional: - bl ofw_print_space - bl ofw_print_space - lwz %r3,152(%r1) - lwz %r3,0(%r3) - bl ofw_print_number - bl ofw_print_space - lwz %r3,152(%r1) - lwz %r3,4(%r3) - bl ofw_print_number - bl ofw_print_space - lwz %r3,152(%r1) - lwz %r3,8(%r3) - bl ofw_print_number - bl ofw_print_space - lwz %r3,152(%r1) - lwz %r3,12(%r3) - bl ofw_print_number - bl ofw_print_space -done_dump: - bl ofw_print_eol - b ofw_register_loop - -ofw_register_special: - /* LR */ - lis %r3,0xe00000@ha - addi %r3,%r3,freeldr_reg_lr - _start - bl ofw_print_string - bl ofw_print_space - lwz %r3,128(%r1) - bl ofw_print_number - bl ofw_print_eol - - /* CR */ - lis %r3,0xe00000@ha - addi %r3,%r3,freeldr_reg_cr - _start - bl ofw_print_string - bl ofw_print_space - lwz %r3,132(%r1) - bl ofw_print_number - bl ofw_print_eol - - /* CTR */ - lis %r3,0xe00000@ha - addi %r3,%r3,freeldr_reg_ctr - _start - bl ofw_print_string - bl ofw_print_space - lwz %r3,136(%r1) - bl ofw_print_number - bl ofw_print_eol - - /* MSR */ - lis %r3,0xe00000@ha - addi %r3,%r3,freeldr_reg_msr - _start - bl ofw_print_string - bl ofw_print_space - lwz %r3,140(%r1) - bl ofw_print_number - bl ofw_print_eol - - /* Return */ - lwz %r0,128(%r1) - mtlr %r0 - - lwz %r0,0(%r1) - lwz %r2,8(%r1) - lwz %r3,12(%r1) - - lwz %r4,16(%r1) - lwz %r5,20(%r1) - lwz %r6,24(%r1) - lwz %r7,28(%r1) - - addi %r1,%r1,0xa0 - - blr - -ofw_finddevice_hook: - subi %r1,%r1,32 - stw %r3,0(%r1) - mflr %r3 - stw %r3,4(%r1) - lwz %r3,0(%r1) - bl ofw_finddevice - stw %r3,0(%r1) - lwz %r3,4(%r1) - mtlr %r3 - lwz %r3,0(%r1) - addi %r1,%r1,32 - blr - -ofw_finddevice: - /* Reserve stack space ... - * 20 bytes for the ofw call, - * r8, r9, and lr */ - subi %r1,%r1,32 - - /* Store r8, r9, lr */ - stw %r8,20(%r1) - stw %r9,24(%r1) - mflr %r8 - stw %r8,28(%r1) - - /* Get finddevice name */ - lis %r8,0xe00000@ha - addi %r9,%r8,ofw_finddevice_name - _start - stw %r9,0(%r1) - - /* 1 Argument and 1 return */ - li %r9,1 - stw %r9,4(%r1) - stw %r9,8(%r1) - - stw %r3,12(%r1) - - /* Load up the call address */ - lwz %r9,ofw_call_addr - _start(%r8) - mtlr %r9 - - /* Set argument */ - mr %r3,%r1 - - /* Fire */ - blrl - - lwz %r3,16(%r1) - - /* Restore registers */ - lwz %r8,28(%r1) - mtlr %r8 - lwz %r9,24(%r1) - lwz %r8,20(%r1) - - addi %r1,%r1,32 - - /* Return */ - blr - -ofw_open: - /* Reserve stack space ... - * 20 bytes for the ofw call, - * r8, r9, and lr */ - subi %r1,%r1,32 - - /* Store r8, r9, lr */ - stw %r8,20(%r1) - stw %r9,24(%r1) - mflr %r8 - stw %r8,28(%r1) - - /* Get open name */ - lis %r8,0xe00000@ha - addi %r9,%r8,ofw_open_name - _start - stw %r9,0(%r1) - - /* 1 Argument and 1 return */ - li %r9,1 - stw %r9,4(%r1) - stw %r9,8(%r1) - - stw %r3,12(%r1) - - /* Load up the call address */ - lwz %r9,ofw_call_addr - _start(%r8) - mtlr %r9 - - /* Set argument */ - mr %r3,%r1 - - /* Fire */ - blrl - - lwz %r3,16(%r1) - - /* Restore registers */ - lwz %r8,28(%r1) - mtlr %r8 - lwz %r9,24(%r1) - lwz %r8,20(%r1) - - addi %r1,%r1,32 - - /* Return */ - blr - -ofw_getprop_hook: - /* Reserve stack space: - * 32 bytes for the ofw call - * 12 bytes for r8, r9, lr - */ - /* Reserve stack space ... - * 20 bytes for the ofw call, - * r8, r9, and lr */ - subi %r1,%r1,48 - - /* Store r8, r9, lr */ - stw %r8,32(%r1) - stw %r9,36(%r1) - mflr %r8 - stw %r8,40(%r1) - - /* Get getprop name */ - lis %r8,0xe00000@ha - addi %r9,%r8,ofw_getprop_name - _start - stw %r9,0(%r1) - - /* 4 Argument and 1 return */ - li %r9,4 - stw %r9,4(%r1) - li %r9,1 - stw %r9,8(%r1) - - stw %r3,12(%r1) /* Package */ - stw %r4,16(%r1) /* Property */ - stw %r5,20(%r1) /* Return buffer */ - stw %r6,24(%r1) /* Buffer size */ - - /* Load up the call address */ - lwz %r9,ofw_call_addr - _start(%r8) - mtlr %r9 - - /* Set argument */ - mr %r3,%r1 - - /* Fire */ - blrl - - /* Workaround to a wierd crash ... not sure what causes it. - * XXX investigate me */ - bl ofw_print_nothing - - /* Return */ - lwz %r3,28(%r1) - - /* Restore registers */ - lwz %r8,40(%r1) - mtlr %r8 - lwz %r9,36(%r1) - lwz %r8,32(%r1) - - addi %r1,%r1,48 - - /* Return */ - blr - -ofw_getprop: - /* Reserve stack space: - * 32 bytes for the ofw call - * 12 bytes for r8, r9, lr - */ - /* Reserve stack space ... - * 20 bytes for the ofw call, - * r8, r9, and lr */ - subi %r1,%r1,48 - - /* Store r8, r9, lr */ - stw %r8,32(%r1) - stw %r9,36(%r1) - mflr %r8 - stw %r8,40(%r1) - - /* Get getprop name */ - lis %r8,0xe00000@ha - addi %r9,%r8,ofw_getprop_name - _start - stw %r9,0(%r1) - - /* 4 Argument and 1 return */ - li %r9,4 - stw %r9,4(%r1) - li %r9,1 - stw %r9,8(%r1) - - stw %r3,12(%r1) /* Package */ - stw %r4,16(%r1) /* Property */ - stw %r5,20(%r1) /* Return buffer */ - stw %r6,24(%r1) /* Buffer size */ - - /* Load up the call address */ - lwz %r9,ofw_call_addr - _start(%r8) - mtlr %r9 - - /* Set argument */ - mr %r3,%r1 - - /* Fire */ - blrl - - /* Return */ - lwz %r3,28(%r1) - - /* Restore registers */ - lwz %r8,40(%r1) - - mtlr %r8 - lwz %r9,36(%r1) - lwz %r8,32(%r1) - - addi %r1,%r1,48 - - /* Return */ - blr - -ofw_write: - /* Reserve stack space: - * 28 bytes for the ofw call - * 12 bytes for r8, r9, lr - */ - /* Reserve stack space ... - * 20 bytes for the ofw call, - * r8, r9, and lr */ - subi %r1,%r1,48 - - nop - - /* Store r8, r9, lr */ - stw %r8,28(%r1) - stw %r9,32(%r1) - mflr %r8 - stw %r8,36(%r1) - - /* Get write name */ - lis %r8,0xe00000@ha - addi %r9,%r8,ofw_write_name - _start - stw %r9,0(%r1) - - /* 3 Arguments and 1 return */ - li %r9,3 - stw %r9,4(%r1) - li %r9,1 - stw %r9,8(%r1) - - stw %r3,12(%r1) - stw %r4,16(%r1) - stw %r5,20(%r1) - - /* Load up the call address */ - lwz %r9,ofw_call_addr - _start(%r8) - mtlr %r9 - - /* Set argument */ - mr %r3,%r1 - - /* Fire */ - blrl - - /* Return */ - lwz %r3,24(%r1) - - /* Restore registers */ - lwz %r8,36(%r1) - mtlr %r8 - lwz %r9,32(%r1) - lwz %r8,28(%r1) - - addi %r1,%r1,48 - - /* Return */ - blr - -ofw_read: - /* Reserve stack space: - * 28 bytes for the ofw call - * 12 bytes for r8, r9, lr - */ - /* Reserve stack space ... - * 20 bytes for the ofw call, - * r8, r9, and lr */ - subi %r1,%r1,48 - - nop - - /* Store r8, r9, lr */ - stw %r8,28(%r1) - stw %r9,32(%r1) - mflr %r8 - stw %r8,36(%r1) - - /* Get read name */ - lis %r8,0xe00000@ha - addi %r9,%r8,ofw_read_name - _start - stw %r9,0(%r1) - - /* 3 Arguments and 1 return */ - li %r9,3 - stw %r9,4(%r1) - li %r9,1 - stw %r9,8(%r1) - - stw %r3,12(%r1) - stw %r4,16(%r1) - stw %r5,20(%r1) - - /* Load up the call address */ - lwz %r9,ofw_call_addr - _start(%r8) - mtlr %r9 - - /* Set argument */ - mr %r3,%r1 - - /* Fire */ - blrl - - /* Return */ - lwz %r3,24(%r1) - - /* Restore registers */ - lwz %r8,36(%r1) - mtlr %r8 - lwz %r9,32(%r1) - lwz %r8,28(%r1) - - addi %r1,%r1,48 - - /* Return */ - blr - -ofw_exit: - lis %r3,0xe00000@ha - addi %r3,%r3,freeldr_halt - _start - - bl ofw_print_string -/* -ofw_exit_loop: - b ofw_exit_loop -*/ - /* Load the exit name */ - lis %r8,0xe00000@ha - addi %r9,%r8,ofw_exit_name - _start - stw %r9,0(%r1) - - /* Zero args, zero returns */ - xor %r9,%r9,%r9 - stw %r9,4(%r1) - stw %r9,8(%r1) - - /* Load up the call address */ - lwz %r9,ofw_call_addr - _start(%r8) - mtlr %r9 - - mr %r3,%r1 - - /* Fire */ - blrl - /* No return from exit */ - -ofw_child: - /* Reserve stack space ... - * 20 bytes for the ofw call, - * r8, r9, and lr */ - subi %r1,%r1,32 - - /* Store r8, r9, lr */ - stw %r8,20(%r1) - stw %r9,24(%r1) - mflr %r8 - stw %r8,28(%r1) - - /* Get child name */ - lis %r8,0xe00000@ha - addi %r9,%r8,ofw_child_name - _start - stw %r9,0(%r1) - - /* 1 Argument and 1 return */ - li %r9,1 - stw %r9,4(%r1) - stw %r9,8(%r1) - - stw %r3,12(%r1) - - /* Load up the call address */ - lwz %r9,ofw_call_addr - _start(%r8) - mtlr %r9 - - /* Set argument */ - mr %r3,%r1 - - /* Fire */ - blrl - - lwz %r3,16(%r1) - - /* Restore registers */ - lwz %r8,28(%r1) - mtlr %r8 - lwz %r9,24(%r1) - lwz %r8,20(%r1) - - addi %r1,%r1,32 - - /* Return */ - blr - -ofw_peer: - /* Reserve stack space ... - * 20 bytes for the ofw call, - * r8, r9, and lr */ - subi %r1,%r1,32 - [truncated at 1000 lines; 247 more skipped]
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