diff options
| -rw-r--r-- | py/nlr.h | 4 | ||||
| -rw-r--r-- | py/nlrmips.c | 86 | ||||
| -rw-r--r-- | py/py.cmake | 1 | ||||
| -rw-r--r-- | py/py.mk | 1 |
4 files changed, 92 insertions, 0 deletions
@@ -40,6 +40,7 @@ #define MICROPY_NLR_NUM_REGS_ARM_THUMB (10) #define MICROPY_NLR_NUM_REGS_ARM_THUMB_FP (10 + 6) #define MICROPY_NLR_NUM_REGS_AARCH64 (13) +#define MICROPY_NLR_NUM_REGS_MIPS (13) #define MICROPY_NLR_NUM_REGS_XTENSA (10) #define MICROPY_NLR_NUM_REGS_XTENSAWIN (17) @@ -83,6 +84,9 @@ #define MICROPY_NLR_POWERPC (1) // this could be less but using 128 for safety #define MICROPY_NLR_NUM_REGS (128) +#elif defined(__mips__) + #define MICROPY_NLR_MIPS (1) + #define MICROPY_NLR_NUM_REGS (MICROPY_NLR_NUM_REGS_MIPS) #else #define MICROPY_NLR_SETJMP (1) //#warning "No native NLR support for this arch, using setjmp implementation" diff --git a/py/nlrmips.c b/py/nlrmips.c new file mode 100644 index 000000000..bd5d73b6f --- /dev/null +++ b/py/nlrmips.c @@ -0,0 +1,86 @@ +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2013-2017 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. + */ + +#include "py/mpstate.h" + +#if MICROPY_NLR_MIPS + +__attribute__((used)) unsigned int nlr_push_tail(nlr_buf_t *nlr); + +__asm( + ".globl nlr_push \n" + "nlr_push: \n" + ".ent nlr_push \n" + ".frame $29, 0, $31 \n" + ".set noreorder \n" + ".cpload $25 \n" + ".set reorder \n" + "sw $31, 8($4) \n" /* is the offset of regs in nlr_buf_t */ + "sw $30, 12($4) \n" + "sw $29, 16($4) \n" + "sw $28, 20($4) \n" + "sw $23, 24($4) \n" + "sw $22, 28($4) \n" + "sw $21, 32($4) \n" + "sw $20, 36($4) \n" + "sw $19, 40($4) \n" + "sw $18, 44($4) \n" + "sw $17, 48($4) \n" + "sw $16, 52($4) \n" +#ifdef __pic__ + "la $25, nlr_push_tail \n" +#endif + "j nlr_push_tail \n" + ".end nlr_push \n" + ); + +NORETURN void nlr_jump(void *val) { + MP_NLR_JUMP_HEAD(val, top) + __asm( + "move $4, %0 \n" + "lw $31, 8($4) \n" + "lw $30, 12($4) \n" + "lw $29, 16($4) \n" + "lw $28, 20($4) \n" + "lw $23, 24($4) \n" + "lw $22, 28($4) \n" + "lw $21, 32($4) \n" + "lw $20, 36($4) \n" + "lw $19, 40($4) \n" + "lw $18, 44($4) \n" + "lw $17, 48($4) \n" + "lw $16, 52($4) \n" + "lui $2,1 \n" // set return value 1 + "j $31 \n" + "nop \n" + : + : "r" (top) + : + ); + MP_UNREACHABLE +} + +#endif // MICROPY_NLR_MIPS diff --git a/py/py.cmake b/py/py.cmake index 2b5d437b5..07d1fe05f 100644 --- a/py/py.cmake +++ b/py/py.cmake @@ -53,6 +53,7 @@ set(MICROPY_SOURCE_PY ${MICROPY_PY_DIR}/mpz.c ${MICROPY_PY_DIR}/nativeglue.c ${MICROPY_PY_DIR}/nlr.c + ${MICROPY_PY_DIR}/nlrmips.c ${MICROPY_PY_DIR}/nlrpowerpc.c ${MICROPY_PY_DIR}/nlrsetjmp.c ${MICROPY_PY_DIR}/nlrthumb.c @@ -80,6 +80,7 @@ PY_CORE_O_BASENAME = $(addprefix py/,\ nlrx64.o \ nlrthumb.o \ nlraarch64.o \ + nlrmips.o \ nlrpowerpc.o \ nlrxtensa.o \ nlrsetjmp.o \ |