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Diffstat (limited to 'py/nlrthumb.S')
| -rw-r--r-- | py/nlrthumb.S | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/py/nlrthumb.S b/py/nlrthumb.S deleted file mode 100644 index 624275e8ed..0000000000 --- a/py/nlrthumb.S +++ /dev/null @@ -1,165 +0,0 @@ -/* - * This file is part of the MicroPython project, http://micropython.org/ - * - * The MIT License (MIT) - * - * Copyright (c) 2013-2015 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(MICROPY_NLR_SETJMP) || !MICROPY_NLR_SETJMP) && (defined(__thumb2__) || defined(__thumb__) || defined(__arm__)) - -// We only need the functions here if we are on arm/thumb, and we are not -// using setjmp/longjmp. -// -// For reference, arm/thumb callee save regs are: -// r4-r11, r13=sp - -// the offset of nlr_top within mp_state_ctx_t -#define NLR_TOP_OFFSET (2 * 4) - - .syntax unified - /*.cpu cortex-m4*/ - /*.thumb*/ - .text - .align 2 - -/**************************************/ -// mp_uint_t nlr_push(r0=nlr_buf_t *nlr) - - .global nlr_push -#if defined(__thumb2__) - .thumb - .thumb_func -#endif - .type nlr_push, %function -nlr_push: - str r4, [r0, #12] @ store r4 into nlr_buf - str r5, [r0, #16] @ store r5 into nlr_buf - str r6, [r0, #20] @ store r6 into nlr_buf - str r7, [r0, #24] @ store r7 into nlr_buf - -#if defined(__ARM_ARCH_6M__) - mov r1, r8 - str r1, [r0, #28] @ store r8 into nlr_buf - mov r1, r9 - str r1, [r0, #32] @ store r9 into nlr_buf - mov r1, r10 - str r1, [r0, #36] @ store r10 into nlr_buf - mov r1, r11 - str r1, [r0, #40] @ store r11 into nlr_buf - mov r1, r13 - str r1, [r0, #44] @ store r13=sp into nlr_buf - mov r1, lr - str r1, [r0, #8] @ store lr into nlr_buf -#else - str r8, [r0, #28] @ store r8 into nlr_buf - str r9, [r0, #32] @ store r9 into nlr_buf - str r10, [r0, #36] @ store r10 into nlr_buf - str r11, [r0, #40] @ store r11 into nlr_buf - str r13, [r0, #44] @ store r13=sp into nlr_buf - str lr, [r0, #8] @ store lr into nlr_buf -#endif - - ldr r3, nlr_top_addr @ load addr of nlr_top - ldr r2, [r3] @ load nlr_top - str r2, [r0] @ store nlr_top into nlr_buf - str r0, [r3] @ store nlr_buf into nlr_top (to link list) - - movs r0, #0 @ return 0, normal return - bx lr @ return - .size nlr_push, .-nlr_push - -/**************************************/ -// void nlr_pop() - - .global nlr_pop -#if defined(__thumb2__) - .thumb - .thumb_func -#endif - .type nlr_pop, %function -nlr_pop: - ldr r3, nlr_top_addr @ load addr of nlr_top - ldr r2, [r3] @ load nlr_top - ldr r2, [r2] @ load prev nlr_buf - str r2, [r3] @ store prev nlr_buf to nlr_top (to unlink list) - bx lr @ return - .size nlr_pop, .-nlr_pop - -/**************************************/ -// void nlr_jump(r0=mp_uint_t val) - - .global nlr_jump -#if defined(__thumb2__) - .thumb - .thumb_func -#endif - .type nlr_jump, %function -nlr_jump: - ldr r3, nlr_top_addr @ load addr of nlr_top - ldr r2, [r3] @ load nlr_top - cmp r2, #0 @ test if nlr_top is NULL -#if defined(__ARM_ARCH_6M__) - bne nlr_jump_non_null @ if nlr_top is NULL, transfer control to nlr_jump_fail - bl nlr_jump_fail -nlr_jump_non_null: -#else - beq nlr_jump_fail @ if nlr_top is NULL, transfer control to nlr_jump_fail -#endif - str r0, [r2, #4] @ store return value - ldr r0, [r2] @ load prev nlr_buf - str r0, [r3] @ store prev nol_buf into nlr_top (to unlink list) - - ldr r4, [r2, #12] @ load r4 from nlr_buf - ldr r5, [r2, #16] @ load r5 from nlr_buf - ldr r6, [r2, #20] @ load r6 from nlr_buf - ldr r7, [r2, #24] @ load r7 from nlr_buf -#if defined(__ARM_ARCH_6M__) - ldr r1, [r2, #28] @ load r8 from nlr_buf - mov r8, r1 - ldr r1, [r2, #32] @ load r9 from nlr_buf - mov r9, r1 - ldr r1, [r2, #36] @ load r10 from nlr_buf - mov r10, r1 - ldr r1, [r2, #40] @ load r11 from nlr_buf - mov r11, r1 - ldr r1, [r2, #44] @ load r13=sp from nlr_buf - mov r13, r1 - ldr r1, [r2, #8] @ load lr from nlr_buf - mov lr, r1 -#else - ldr r8, [r2, #28] @ load r8 from nlr_buf - ldr r9, [r2, #32] @ load r9 from nlr_buf - ldr r10, [r2, #36] @ load r10 from nlr_buf - ldr r11, [r2, #40] @ load r11 from nlr_buf - ldr r13, [r2, #44] @ load r13=sp from nlr_buf - ldr lr, [r2, #8] @ load lr from nlr_buf -#endif - - movs r0, #1 @ return 1, non-local return - bx lr @ return - .size nlr_jump, .-nlr_jump - - .align 2 -nlr_top_addr: - .word mp_state_ctx + NLR_TOP_OFFSET - -#endif // (!defined(MICROPY_NLR_SETJMP) || !MICROPY_NLR_SETJMP) && (defined(__thumb2__) || defined(__thumb__) || defined(__arm__)) |