kopia lustrzana https://github.com/micropython/micropython
120 wiersze
4.2 KiB
ArmAsm
120 wiersze
4.2 KiB
ArmAsm
/*
|
|
* This file is part of the Micro Python project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2013, 2014 Damien P. George
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#if defined(__i386__) && !MICROPY_NLR_SETJMP
|
|
/* x86 callee save: bx, di, si, bp, sp */
|
|
|
|
.file "nlr.s"
|
|
.text
|
|
|
|
/* uint nlr_push(4(%esp)=nlr_buf_t *nlr) */
|
|
#ifdef _WIN32
|
|
.globl _nlr_push
|
|
.def _nlr_push; .scl 2; .type 32; .endef
|
|
_nlr_push:
|
|
#else
|
|
.globl nlr_push
|
|
.type nlr_push, @function
|
|
nlr_push:
|
|
#endif
|
|
mov 4(%esp), %edx # load nlr_buf
|
|
mov (%esp), %eax # load return %ip
|
|
mov %eax, 8(%edx) # store %ip into nlr_buf+8
|
|
mov %ebp, 12(%edx) # store %bp into nlr_buf+12
|
|
mov %esp, 16(%edx) # store %sp into nlr_buf+16
|
|
mov %ebx, 20(%edx) # store %bx into nlr_buf+20
|
|
mov %edi, 24(%edx) # store %di into nlr_buf
|
|
mov %esi, 28(%edx) # store %si into nlr_buf
|
|
mov nlr_top, %eax # load nlr_top
|
|
mov %eax, (%edx) # store it
|
|
mov %edx, nlr_top # stor new nlr_buf (to make linked list)
|
|
xor %eax, %eax # return 0, normal return
|
|
ret # return
|
|
#ifndef _WIN32
|
|
.size nlr_push, .-nlr_push
|
|
#endif
|
|
|
|
/* void nlr_pop() */
|
|
#ifdef _WIN32
|
|
.globl _nlr_pop
|
|
.def _nlr_pop; .scl 2; .type 32; .endef
|
|
_nlr_pop:
|
|
#else
|
|
.globl nlr_pop
|
|
.type nlr_pop, @function
|
|
nlr_pop:
|
|
#endif
|
|
mov nlr_top, %eax # load nlr_top
|
|
mov (%eax), %eax # load prev nlr_buf
|
|
mov %eax, nlr_top # store nlr_top (to unlink list)
|
|
ret # return
|
|
#ifndef _WIN32
|
|
.size nlr_pop, .-nlr_pop
|
|
#endif
|
|
|
|
/* void nlr_jump(4(%esp)=uint val) */
|
|
#ifdef _WIN32
|
|
.globl _nlr_jump
|
|
.def _nlr_jump; .scl 2; .type 32; .endef
|
|
_nlr_jump:
|
|
#else
|
|
.globl nlr_jump
|
|
.type nlr_jump, @function
|
|
nlr_jump:
|
|
#endif
|
|
mov nlr_top, %edx # load nlr_top
|
|
test %edx, %edx # check for nlr_top being NULL
|
|
#ifdef _WIN32
|
|
je _nlr_jump_fail # fail if nlr_top is NULL
|
|
#else
|
|
je nlr_jump_fail # fail if nlr_top is NULL
|
|
#endif
|
|
mov 4(%esp), %eax # load return value
|
|
mov %eax, 4(%edx) # store return value
|
|
mov (%edx), %eax # load prev nlr_top
|
|
mov %eax, nlr_top # store nlr_top (to unlink list)
|
|
mov 28(%edx), %esi # load saved %si
|
|
mov 24(%edx), %edi # load saved %di
|
|
mov 20(%edx), %ebx # load saved %bx
|
|
mov 16(%edx), %esp # load saved %sp
|
|
mov 12(%edx), %ebp # load saved %bp
|
|
mov 8(%edx), %eax # load saved %ip
|
|
mov %eax, (%esp) # store saved %ip to stack
|
|
xor %eax, %eax # clear return register
|
|
inc %al # increase to make 1, non-local return
|
|
ret # return
|
|
#ifndef _WIN32
|
|
.size nlr_jump, .-nlr_jump
|
|
#endif
|
|
|
|
.bss
|
|
#ifndef _WIN32
|
|
.local nlr_top
|
|
#endif
|
|
.comm nlr_top,4,4
|
|
|
|
#endif /* __i386__ */
|