diff options
Diffstat (limited to 'py/nlrthumb.c')
| -rw-r--r-- | py/nlrthumb.c | 164 |
1 files changed, 82 insertions, 82 deletions
diff --git a/py/nlrthumb.c b/py/nlrthumb.c index 464995fa8..1cdc2f063 100644 --- a/py/nlrthumb.c +++ b/py/nlrthumb.c @@ -39,53 +39,53 @@ __attribute__((naked)) unsigned int nlr_push(nlr_buf_t *nlr) { __asm volatile ( - "str r4, [r0, #12] \n" // store r4 into nlr_buf - "str r5, [r0, #16] \n" // store r5 into nlr_buf - "str r6, [r0, #20] \n" // store r6 into nlr_buf - "str r7, [r0, #24] \n" // store r7 into nlr_buf + "str r4, [r0, #12] \n" // store r4 into nlr_buf + "str r5, [r0, #16] \n" // store r5 into nlr_buf + "str r6, [r0, #20] \n" // store r6 into nlr_buf + "str r7, [r0, #24] \n" // store r7 into nlr_buf -#if defined(__ARM_ARCH_6M__) - "mov r1, r8 \n" - "str r1, [r0, #28] \n" // store r8 into nlr_buf - "mov r1, r9 \n" - "str r1, [r0, #32] \n" // store r9 into nlr_buf - "mov r1, r10 \n" - "str r1, [r0, #36] \n" // store r10 into nlr_buf - "mov r1, r11 \n" - "str r1, [r0, #40] \n" // store r11 into nlr_buf - "mov r1, r13 \n" - "str r1, [r0, #44] \n" // store r13=sp into nlr_buf - "mov r1, lr \n" - "str r1, [r0, #8] \n" // store lr into nlr_buf -#else - "str r8, [r0, #28] \n" // store r8 into nlr_buf - "str r9, [r0, #32] \n" // store r9 into nlr_buf - "str r10, [r0, #36] \n" // store r10 into nlr_buf - "str r11, [r0, #40] \n" // store r11 into nlr_buf - "str r13, [r0, #44] \n" // store r13=sp into nlr_buf - #if MICROPY_NLR_NUM_REGS == 16 - "vstr d8, [r0, #48] \n" // store s16-s17 into nlr_buf - "vstr d9, [r0, #56] \n" // store s18-s19 into nlr_buf - "vstr d10, [r0, #64] \n" // store s20-s21 into nlr_buf - #endif - "str lr, [r0, #8] \n" // store lr into nlr_buf -#endif + #if defined(__ARM_ARCH_6M__) + "mov r1, r8 \n" + "str r1, [r0, #28] \n" // store r8 into nlr_buf + "mov r1, r9 \n" + "str r1, [r0, #32] \n" // store r9 into nlr_buf + "mov r1, r10 \n" + "str r1, [r0, #36] \n" // store r10 into nlr_buf + "mov r1, r11 \n" + "str r1, [r0, #40] \n" // store r11 into nlr_buf + "mov r1, r13 \n" + "str r1, [r0, #44] \n" // store r13=sp into nlr_buf + "mov r1, lr \n" + "str r1, [r0, #8] \n" // store lr into nlr_buf + #else + "str r8, [r0, #28] \n" // store r8 into nlr_buf + "str r9, [r0, #32] \n" // store r9 into nlr_buf + "str r10, [r0, #36] \n" // store r10 into nlr_buf + "str r11, [r0, #40] \n" // store r11 into nlr_buf + "str r13, [r0, #44] \n" // store r13=sp into nlr_buf + #if MICROPY_NLR_NUM_REGS == 16 + "vstr d8, [r0, #48] \n" // store s16-s17 into nlr_buf + "vstr d9, [r0, #56] \n" // store s18-s19 into nlr_buf + "vstr d10, [r0, #64] \n" // store s20-s21 into nlr_buf + #endif + "str lr, [r0, #8] \n" // store lr into nlr_buf + #endif -#if defined(__ARM_ARCH_6M__) - "ldr r1, nlr_push_tail_var \n" - "bx r1 \n" // do the rest in C - ".align 2 \n" - "nlr_push_tail_var: .word nlr_push_tail \n" -#else - "b nlr_push_tail \n" // do the rest in C -#endif - : // output operands - : "r" (nlr) // input operands - // Do not use r1, r2, r3 as temporary saving registers. - // gcc 7.2.1 started doing this, and r3 got clobbered in nlr_push_tail. - // See https://github.com/adafruit/circuitpython/issues/500 for details. - : "r1", "r2", "r3" // clobbers - ); + #if defined(__ARM_ARCH_6M__) + "ldr r1, nlr_push_tail_var \n" + "bx r1 \n" // do the rest in C + ".align 2 \n" + "nlr_push_tail_var: .word nlr_push_tail \n" + #else + "b nlr_push_tail \n" // do the rest in C + #endif + : // output operands + : "r" (nlr) // input operands + // Do not use r1, r2, r3 as temporary saving registers. + // gcc 7.2.1 started doing this, and r3 got clobbered in nlr_push_tail. + // See https://github.com/adafruit/circuitpython/issues/500 for details. + : "r1", "r2", "r3" // clobbers + ); #if !defined(__clang__) && defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)) // Older versions of gcc give an error when naked functions don't return a value @@ -98,44 +98,44 @@ NORETURN void nlr_jump(void *val) { MP_NLR_JUMP_HEAD(val, top) __asm volatile ( - "mov r0, %0 \n" // r0 points to nlr_buf - "ldr r4, [r0, #12] \n" // load r4 from nlr_buf - "ldr r5, [r0, #16] \n" // load r5 from nlr_buf - "ldr r6, [r0, #20] \n" // load r6 from nlr_buf - "ldr r7, [r0, #24] \n" // load r7 from nlr_buf + "mov r0, %0 \n" // r0 points to nlr_buf + "ldr r4, [r0, #12] \n" // load r4 from nlr_buf + "ldr r5, [r0, #16] \n" // load r5 from nlr_buf + "ldr r6, [r0, #20] \n" // load r6 from nlr_buf + "ldr r7, [r0, #24] \n" // load r7 from nlr_buf -#if defined(__ARM_ARCH_6M__) - "ldr r1, [r0, #28] \n" // load r8 from nlr_buf - "mov r8, r1 \n" - "ldr r1, [r0, #32] \n" // load r9 from nlr_buf - "mov r9, r1 \n" - "ldr r1, [r0, #36] \n" // load r10 from nlr_buf - "mov r10, r1 \n" - "ldr r1, [r0, #40] \n" // load r11 from nlr_buf - "mov r11, r1 \n" - "ldr r1, [r0, #44] \n" // load r13=sp from nlr_buf - "mov r13, r1 \n" - "ldr r1, [r0, #8] \n" // load lr from nlr_buf - "mov lr, r1 \n" -#else - "ldr r8, [r0, #28] \n" // load r8 from nlr_buf - "ldr r9, [r0, #32] \n" // load r9 from nlr_buf - "ldr r10, [r0, #36] \n" // load r10 from nlr_buf - "ldr r11, [r0, #40] \n" // load r11 from nlr_buf - "ldr r13, [r0, #44] \n" // load r13=sp from nlr_buf - #if MICROPY_NLR_NUM_REGS == 16 - "vldr d8, [r0, #48] \n" // load s16-s17 from nlr_buf - "vldr d9, [r0, #56] \n" // load s18-s19 from nlr_buf - "vldr d10, [r0, #64] \n" // load s20-s21 from nlr_buf - #endif - "ldr lr, [r0, #8] \n" // load lr from nlr_buf -#endif - "movs r0, #1 \n" // return 1, non-local return - "bx lr \n" // return - : // output operands - : "r"(top) // input operands - : // clobbered registers - ); + #if defined(__ARM_ARCH_6M__) + "ldr r1, [r0, #28] \n" // load r8 from nlr_buf + "mov r8, r1 \n" + "ldr r1, [r0, #32] \n" // load r9 from nlr_buf + "mov r9, r1 \n" + "ldr r1, [r0, #36] \n" // load r10 from nlr_buf + "mov r10, r1 \n" + "ldr r1, [r0, #40] \n" // load r11 from nlr_buf + "mov r11, r1 \n" + "ldr r1, [r0, #44] \n" // load r13=sp from nlr_buf + "mov r13, r1 \n" + "ldr r1, [r0, #8] \n" // load lr from nlr_buf + "mov lr, r1 \n" + #else + "ldr r8, [r0, #28] \n" // load r8 from nlr_buf + "ldr r9, [r0, #32] \n" // load r9 from nlr_buf + "ldr r10, [r0, #36] \n" // load r10 from nlr_buf + "ldr r11, [r0, #40] \n" // load r11 from nlr_buf + "ldr r13, [r0, #44] \n" // load r13=sp from nlr_buf + #if MICROPY_NLR_NUM_REGS == 16 + "vldr d8, [r0, #48] \n" // load s16-s17 from nlr_buf + "vldr d9, [r0, #56] \n" // load s18-s19 from nlr_buf + "vldr d10, [r0, #64] \n" // load s20-s21 from nlr_buf + #endif + "ldr lr, [r0, #8] \n" // load lr from nlr_buf + #endif + "movs r0, #1 \n" // return 1, non-local return + "bx lr \n" // return + : // output operands + : "r" (top) // input operands + : // clobbered registers + ); MP_UNREACHABLE } |