cortex-m3-qemu: refactor the port.
Switch from CodeSourcery to ARM GCC and clean-up some stale files, also copy `main.c` and `mpconfigport.h` from bare-arm.
This commit is contained in:
Ilya Dmitrichenko
parent
5130b81eec
commit
ee857853d6
@ -10,7 +10,8 @@ include ../py/py.mk
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CROSS_COMPILE = arm-none-eabi-
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CFLAGS_CORTEX_M3 = -mthumb -mcpu=cortex-m3
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CFLAGS = -I. -I$(PY_SRC) -Wall -ansi -std=gnu99 $(CFLAGS_CORTEX_M3) $(COPT)
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CFLAGS = -I. -I$(PY_SRC) -Wall -ansi -std=gnu99 $(CFLAGS_CORTEX_M3) $(COPT) \
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-flto -ffunction-sections -fdata-sections
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#Debugging/Optimization
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ifeq ($(DEBUG), 1)
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@ -20,35 +21,33 @@ else
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COPT += -Os -DNDEBUG
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endif
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#LDFLAGS = --nostdlib -T stm32f405.ld -Map=$(@:.elf=.map) --cref
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LDFLAGS = -lm -T generic-m-hosted.ld # -Map=$(@:.elf=.map) --cref
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LIBS =
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# uncomment this if you want libgcc
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#LIBS += $(shell $(CC) -print-libgcc-file-name)
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## With CoudeSourcery it's actually a little different, you just need `-T generic-m-hosted.ld`.
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## Although for some reason `$(LD)` will not find that linker script, it works with `$(CC)`.
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## It turns out that this is specific to CoudeSourcery, and ARM version of GCC ships something
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## else instead and according to the following files, this is what we need to pass to `$(CC).
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## - gcc-arm-none-eabi-4_8-2014q1/share/gcc-arm-none-eabi/samples/src/makefile.conf
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## - gcc-arm-none-eabi-4_8-2014q1/share/gcc-arm-none-eabi/samples/src/qemu/Makefile
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LDFLAGS= --specs=nano.specs --specs=rdimon.specs -Wl,--gc-sections -Wl,-Map=$(@:.elf=.map)
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SRC_C = \
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help.c \
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math.c \
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#gccollect.c \
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#pyexec.c \
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main.c \
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SRC_S = \
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gchelper.s \
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OBJ =
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OBJ += $(PY_O)
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OBJ += $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
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OBJ += $(addprefix $(BUILD)/, $(SRC_S:.s=.o))
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all: $(BUILD)/flash.elf
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all: run
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run: $(BUILD)/flash.elf
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run:
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qemu-system-arm -cpu cortex-m3 -nographic -monitor null -serial null -semihosting -kernel $(BUILD)/flash.elf
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## `$(LD)` doesn't seem to like `--specs` for some reason, but we can just use `$(CC)` here.
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$(BUILD)/flash.elf: $(OBJ)
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$(Q)$(CC) $(CFLAGS) $(LDFLAGS) main.c -o $@ $(OBJ) $(LIBS)
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$(Q)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJ) $(LIBS)
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$(Q)$(SIZE) $@
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include ../py/mkrules.mk
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@ -1,56 +0,0 @@
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#include <stdio.h>
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//#include <stm32f4xx_hal.h>
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#include "misc.h"
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#include "mpconfig.h"
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#include "qstr.h"
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#include "obj.h"
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#include "gc.h"
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#include "gccollect.h"
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machine_uint_t gc_helper_get_regs_and_sp(machine_uint_t *regs);
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// obsolete
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// void gc_helper_get_regs_and_clean_stack(machine_uint_t *regs, machine_uint_t heap_end);
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void gc_collect(void) {
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// get current time, in case we want to time the GC
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uint32_t start = HAL_GetTick();
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// start the GC
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gc_collect_start();
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// scan everything in RAM before the heap
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// this includes the data and bss segments
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// TODO possibly don't need to scan data, since all pointers should start out NULL and be in bss
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gc_collect_root((void**)&_ram_start, ((uint32_t)&_ebss - (uint32_t)&_ram_start) / sizeof(uint32_t));
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// get the registers and the sp
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machine_uint_t regs[10];
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machine_uint_t sp = gc_helper_get_regs_and_sp(regs);
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// trace the stack, including the registers (since they live on the stack in this function)
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gc_collect_root((void**)sp, ((uint32_t)&_ram_end - sp) / sizeof(uint32_t));
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// end the GC
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gc_collect_end();
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if (0) {
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// print GC info
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uint32_t ticks = HAL_GetTick() - start; // TODO implement a function that does this properly
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gc_info_t info;
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gc_info(&info);
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printf("GC@%lu %lums\n", start, ticks);
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printf(" %lu total\n", info.total);
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printf(" %lu : %lu\n", info.used, info.free);
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printf(" 1=%lu 2=%lu m=%lu\n", info.num_1block, info.num_2block, info.max_block);
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}
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}
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static mp_obj_t pyb_gc(void) {
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gc_collect();
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_0(pyb_gc_obj, pyb_gc);
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@ -1,17 +0,0 @@
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// variables defining memory layout
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// (these probably belong somewhere else...)
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extern uint32_t _etext;
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extern uint32_t _sidata;
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extern uint32_t _ram_start;
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extern uint32_t _sdata;
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extern uint32_t _edata;
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extern uint32_t _sbss;
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extern uint32_t _ebss;
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extern uint32_t _heap_start;
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extern uint32_t _heap_end;
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extern uint32_t _estack;
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extern uint32_t _ram_end;
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void gc_collect(void);
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MP_DECLARE_CONST_FUN_OBJ(pyb_gc_obj);
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@ -1,62 +0,0 @@
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.syntax unified
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.cpu cortex-m4
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.thumb
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.text
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.align 2
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@ uint gc_helper_get_regs_and_sp(r0=uint regs[10])
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.global gc_helper_get_regs_and_sp
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.thumb
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.thumb_func
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.type gc_helper_get_regs_and_sp, %function
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gc_helper_get_regs_and_sp:
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@ store registers into given array
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str r4, [r0], #4
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str r5, [r0], #4
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str r6, [r0], #4
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str r7, [r0], #4
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str r8, [r0], #4
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str r9, [r0], #4
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str r10, [r0], #4
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str r11, [r0], #4
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str r12, [r0], #4
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str r13, [r0], #4
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@ return the sp
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mov r0, sp
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bx lr
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@ this next function is now obsolete
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.size gc_helper_get_regs_and_clean_stack, .-gc_helper_get_regs_and_clean_stack
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@ void gc_helper_get_regs_and_clean_stack(r0=uint regs[10], r1=heap_end)
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.global gc_helper_get_regs_and_clean_stack
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.thumb
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.thumb_func
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.type gc_helper_get_regs_and_clean_stack, %function
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gc_helper_get_regs_and_clean_stack:
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@ store registers into given array
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str r4, [r0], #4
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str r5, [r0], #4
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str r6, [r0], #4
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str r7, [r0], #4
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str r8, [r0], #4
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str r9, [r0], #4
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str r10, [r0], #4
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str r11, [r0], #4
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str r12, [r0], #4
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str r13, [r0], #4
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@ clean the stack from given pointer up to current sp
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movs r0, #0
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mov r2, sp
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b.n .entry
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.loop:
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str r0, [r1], #4
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.entry:
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cmp r1, r2
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bcc.n .loop
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bx lr
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.size gc_helper_get_regs_and_clean_stack, .-gc_helper_get_regs_and_clean_stack
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@ -1,95 +0,0 @@
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#include <stdio.h>
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#include "nlr.h"
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#include "misc.h"
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#include "mpconfig.h"
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#include "qstr.h"
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#include "obj.h"
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STATIC const char *help_text =
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"Welcome to Micro Python!\n"
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"\n"
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"For online help please visit http://micropython.org/help/.\n"
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"\n"
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"Specific commands for the board:\n"
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" pyb.info() -- print some general information\n"
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" pyb.gc() -- run the garbage collector\n"
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" pyb.repl_info(val) -- enable/disable printing of info after each command\n"
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" pyb.delay(n) -- wait for n milliseconds\n"
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" pyb.udelay(n) -- wait for n microseconds\n"
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" pyb.switch() -- return True/False if switch pressed or not\n"
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" pyb.switch(f) -- call the given function when the switch is pressed\n"
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" pyb.Led(n) -- create Led object for LED n (n=1,2,3,4)\n"
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" Led methods: on(), off(), toggle(), intensity(<n>)\n"
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" pyb.Servo(n) -- create Servo object for servo n (n=1,2,3,4)\n"
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" Servo methods: calibrate(...), pulse_width([p]), angle([x, [t]]), speed([x, [t]])\n"
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" pyb.Accel() -- create an Accelerometer object\n"
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" Accelerometer methods: x(), y(), z(), tilt(), filtered_xyz()\n"
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" pyb.rng() -- get a 30-bit hardware random number\n"
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" pyb.gpio_in(port, [m]) -- set IO port to input, mode m\n"
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" pyb.gpio_out(port, [m]) -- set IO port to output, mode m\n"
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" pyb.gpio(port) -- get digital port value\n"
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" pyb.gpio(port, val) -- set digital port value, True or False, 1 or 0\n"
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" pyb.ADC(port) -- make an analog port object\n"
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" ADC methods: read()\n"
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"\n"
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"Ports are numbered X1-X12, X17-X22, Y1-Y12, or by their MCU name\n"
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"Port input modes are: pyb.PULL_NONE, pyb.PULL_UP, pyb.PULL_DOWN\n"
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"Port output modes are: pyb.PUSH_PULL, pyb.OPEN_DRAIN\n"
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"\n"
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"Control commands:\n"
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" CTRL-A -- on a blank line, enter raw REPL mode\n"
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" CTRL-B -- on a blank line, enter normal REPL mode\n"
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" CTRL-C -- interrupt a running program\n"
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" CTRL-D -- on a blank line, do a soft reset of the board\n"
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"\n"
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"For further help on a specific object, type help(obj)\n"
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;
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STATIC void pyb_help_print_info_about_object(mp_obj_t name_o, mp_obj_t value) {
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printf(" ");
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mp_obj_print(name_o, PRINT_STR);
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printf(" -- ");
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mp_obj_print(value, PRINT_STR);
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printf("\n");
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}
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STATIC mp_obj_t pyb_help(uint n_args, const mp_obj_t *args) {
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if (n_args == 0) {
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// print a general help message
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printf("%s", help_text);
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} else {
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// try to print something sensible about the given object
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printf("object ");
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mp_obj_print(args[0], PRINT_STR);
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printf(" is of type %s\n", mp_obj_get_type_str(args[0]));
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mp_map_t *map = NULL;
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if (MP_OBJ_IS_TYPE(args[0], &mp_type_module)) {
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map = mp_obj_dict_get_map(mp_obj_module_get_globals(args[0]));
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} else {
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mp_obj_type_t *type;
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if (MP_OBJ_IS_TYPE(args[0], &mp_type_type)) {
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type = args[0];
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} else {
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type = mp_obj_get_type(args[0]);
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}
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if (type->locals_dict != MP_OBJ_NULL && MP_OBJ_IS_TYPE(type->locals_dict, &mp_type_dict)) {
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map = mp_obj_dict_get_map(type->locals_dict);
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}
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}
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if (map != NULL) {
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for (uint i = 0; i < map->alloc; i++) {
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if (map->table[i].key != MP_OBJ_NULL) {
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pyb_help_print_info_about_object(map->table[i].key, map->table[i].value);
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}
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}
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}
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}
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_builtin_help_obj, 0, 1, pyb_help);
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@ -1,18 +1,12 @@
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#include <stdint.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include "nlr.h"
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#include "misc.h"
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#include "mpconfig.h"
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#include "qstr.h"
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#include "lexer.h"
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#include "lexerunix.h"
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#include "parse.h"
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#include "obj.h"
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#include "parsehelper.h"
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@ -20,37 +14,15 @@
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#include "runtime0.h"
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#include "runtime.h"
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#include "repl.h"
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#include "gc.h"
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mp_obj_t mem_info(void) {
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printf("mem: total=%d, current=%d, peak=%d\n", m_get_total_bytes_allocated(), m_get_current_bytes_allocated(), m_get_peak_bytes_allocated());
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return mp_const_none;
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}
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mp_obj_t qstr_info(void) {
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uint n_pool, n_qstr, n_str_data_bytes, n_total_bytes;
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qstr_pool_info(&n_pool, &n_qstr, &n_str_data_bytes, &n_total_bytes);
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printf("qstr pool: n_pool=%u, n_qstr=%u, n_str_data_bytes=%u, n_total_bytes=%u\n", n_pool, n_qstr, n_str_data_bytes, n_total_bytes);
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return mp_const_none;
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}
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static void execute_from_lexer(mp_lexer_t *lex, mp_parse_input_kind_t input_kind, bool is_repl) {
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void do_str(const char *src) {
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mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, src, strlen(src), 0);
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if (lex == NULL) {
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return;
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}
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if (0) {
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// just tokenise
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while (!mp_lexer_is_kind(lex, MP_TOKEN_END)) {
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mp_token_show(mp_lexer_cur(lex));
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mp_lexer_to_next(lex);
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}
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mp_lexer_free(lex);
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return;
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}
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mp_parse_error_kind_t parse_error_kind;
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mp_parse_node_t pn = mp_parse(lex, input_kind, &parse_error_kind);
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mp_parse_node_t pn = mp_parse(lex, MP_PARSE_SINGLE_INPUT, &parse_error_kind);
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if (pn == MP_PARSE_NODE_NULL) {
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// parse error
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@ -59,23 +31,17 @@ static void execute_from_lexer(mp_lexer_t *lex, mp_parse_input_kind_t input_kind
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return;
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}
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// parse okay
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qstr source_name = mp_lexer_source_name(lex);
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mp_lexer_free(lex);
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/*
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printf("----------------\n");
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mp_parse_node_print(pn, 0);
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printf("----------------\n");
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*/
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mp_obj_t module_fun = mp_compile(pn, source_name, MP_EMIT_OPT_ASM_THUMB, is_repl);
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mp_obj_t module_fun = mp_compile(pn, source_name, MP_EMIT_OPT_NONE, true);
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mp_parse_node_free(pn);
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if (module_fun == mp_const_none) {
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// compile error
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return;
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}
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// execute it
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nlr_buf_t nlr;
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if (nlr_push(&nlr) == 0) {
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mp_call_function_0(module_fun);
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@ -86,42 +52,29 @@ static void execute_from_lexer(mp_lexer_t *lex, mp_parse_input_kind_t input_kind
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}
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}
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mp_import_stat_t mp_import_stat(const char *path) {
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struct stat st;
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if (stat(path, &st) == 0) {
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if (S_ISDIR(st.st_mode)) {
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return MP_IMPORT_STAT_DIR;
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} else if (S_ISREG(st.st_mode)) {
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return MP_IMPORT_STAT_FILE;
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}
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}
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return MP_IMPORT_STAT_NO_EXIST;
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int main(int argc, char **argv) {
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qstr_init();
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mp_init();
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do_str("print('hello world!')");
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mp_deinit();
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return 0;
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}
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static void do_str(const char *str) {
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mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, str, strlen(str), false);
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execute_from_lexer(lex, MP_PARSE_SINGLE_INPUT, false);
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}
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void nlr_jump_fail(void *val) {
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printf("FATAL: uncaught exception %p\n", val);
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//__fatal_error("");
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void gc_collect(void) {
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}
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mp_lexer_t *mp_lexer_new_from_file(const char *filename) {
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return NULL;
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return NULL;
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}
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int main() {
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qstr_init();
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mp_init();
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//mp_obj_t m_sys = mp_obj_new_module(MP_QSTR_sys);
|
||||
//mp_obj_t py_argv = mp_obj_new_list(0, NULL);
|
||||
//mp_store_attr(m_sys, MP_QSTR_argv, py_argv);
|
||||
|
||||
mp_store_name(qstr_from_str("mem_info"), mp_make_function_n(0, mem_info));
|
||||
mp_store_name(qstr_from_str("qstr_info"), mp_make_function_n(0, qstr_info));
|
||||
|
||||
do_str("print(123)");
|
||||
mp_import_stat_t mp_import_stat(const char *path) {
|
||||
return MP_IMPORT_STAT_NO_EXIST;
|
||||
}
|
||||
|
||||
mp_obj_t mp_builtin_open(uint n_args, const mp_obj_t *args) {
|
||||
return mp_const_none;
|
||||
}
|
||||
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_builtin_open_obj, 1, 2, mp_builtin_open);
|
||||
|
||||
void nlr_jump_fail(void *val) {
|
||||
}
|
||||
|
||||
@ -1,791 +0,0 @@
|
||||
#include <stdint.h>
|
||||
#include <math.h>
|
||||
|
||||
typedef float float_t;
|
||||
typedef union {
|
||||
float f;
|
||||
struct {
|
||||
uint64_t m : 23;
|
||||
uint64_t e : 8;
|
||||
uint64_t s : 1;
|
||||
};
|
||||
} float_s_t;
|
||||
|
||||
typedef union {
|
||||
double d;
|
||||
struct {
|
||||
uint64_t m : 52;
|
||||
uint64_t e : 11;
|
||||
uint64_t s : 1;
|
||||
};
|
||||
} double_s_t;
|
||||
|
||||
float sqrtf(float x) {
|
||||
return x;
|
||||
}
|
||||
|
||||
// some compilers define log2f in terms of logf
|
||||
#ifdef log2f
|
||||
#undef log2f
|
||||
#endif
|
||||
float log2f(float x) { return 0; }
|
||||
|
||||
static const float _M_LN10 = 2.30258509299404; // 0x40135d8e
|
||||
float log10f(float x) { return logf(x) / (float)_M_LN10; }
|
||||
|
||||
float tanhf(float x) { return sinhf(x) / coshf(x); }
|
||||
|
||||
// TODO we need import these functions from some library (eg musl or newlib)
|
||||
float acoshf(float x) { return 0.0; }
|
||||
float asinhf(float x) { return 0.0; }
|
||||
float atanhf(float x) { return 0.0; }
|
||||
float cosf(float x) { return 0.0; }
|
||||
float sinf(float x) { return 0.0; }
|
||||
float tanf(float x) { return 0.0; }
|
||||
float acosf(float x) { return 0.0; }
|
||||
float asinf(float x) { return 0.0; }
|
||||
float atanf(float x) { return 0.0; }
|
||||
float atan2f(float x, float y) { return 0.0; }
|
||||
float ceilf(float x) { return 0.0; }
|
||||
float floorf(float x) { return 0.0; }
|
||||
float truncf(float x) { return 0.0; }
|
||||
float fmodf(float x, float y) { return 0.0; }
|
||||
float tgammaf(float x) { return 0.0; }
|
||||
float lgammaf(float x) { return 0.0; }
|
||||
float erff(float x) { return 0.0; }
|
||||
float erfcf(float x) { return 0.0; }
|
||||
float modff(float x, float *y) { return 0.0; }
|
||||
float frexpf(float x, int *exp) { return 0.0; }
|
||||
float ldexpf(float x, int exp) { return 0.0; }
|
||||
|
||||
/*****************************************************************************/
|
||||
/*****************************************************************************/
|
||||
// from musl-0.9.15 libm.h
|
||||
/*****************************************************************************/
|
||||
/*****************************************************************************/
|
||||
|
||||
/* origin: FreeBSD /usr/src/lib/msun/src/math_private.h */
|
||||
/*
|
||||
* ====================================================
|
||||
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
|
||||
*
|
||||
* Developed at SunPro, a Sun Microsystems, Inc. business.
|
||||
* Permission to use, copy, modify, and distribute this
|
||||
* software is freely granted, provided that this notice
|
||||
* is preserved.
|
||||
* ====================================================
|
||||
*/
|
||||
|
||||
#define FORCE_EVAL(x) do { \
|
||||
if (sizeof(x) == sizeof(float)) { \
|
||||
volatile float __x; \
|
||||
__x = (x); \
|
||||
(void)__x; \
|
||||
} else if (sizeof(x) == sizeof(double)) { \
|
||||
volatile double __x; \
|
||||
__x = (x); \
|
||||
(void)__x; \
|
||||
} else { \
|
||||
volatile long double __x; \
|
||||
__x = (x); \
|
||||
(void)__x; \
|
||||
} \
|
||||
} while(0)
|
||||
|
||||
/* Get a 32 bit int from a float. */
|
||||
#define GET_FLOAT_WORD(w,d) \
|
||||
do { \
|
||||
union {float f; uint32_t i;} __u; \
|
||||
__u.f = (d); \
|
||||
(w) = __u.i; \
|
||||
} while (0)
|
||||
|
||||
/* Set a float from a 32 bit int. */
|
||||
#define SET_FLOAT_WORD(d,w) \
|
||||
do { \
|
||||
union {float f; uint32_t i;} __u; \
|
||||
__u.i = (w); \
|
||||
(d) = __u.f; \
|
||||
} while (0)
|
||||
|
||||
/*****************************************************************************/
|
||||
/*****************************************************************************/
|
||||
// __fpclassifyf from musl-0.9.15
|
||||
/*****************************************************************************/
|
||||
/*****************************************************************************/
|
||||
|
||||
int __fpclassifyf(float x)
|
||||
{
|
||||
union {float f; uint32_t i;} u = {x};
|
||||
int e = u.i>>23 & 0xff;
|
||||
if (!e) return u.i<<1 ? FP_SUBNORMAL : FP_ZERO;
|
||||
if (e==0xff) return u.i<<9 ? FP_NAN : FP_INFINITE;
|
||||
return FP_NORMAL;
|
||||
}
|
||||
|
||||
/*****************************************************************************/
|
||||
/*****************************************************************************/
|
||||
// scalbnf from musl-0.9.15
|
||||
/*****************************************************************************/
|
||||
/*****************************************************************************/
|
||||
|
||||
float scalbnf(float x, int n)
|
||||
{
|
||||
union {float f; uint32_t i;} u;
|
||||
float_t y = x;
|
||||
|
||||
if (n > 127) {
|
||||
y *= 0x1p127f;
|
||||
n -= 127;
|
||||
if (n > 127) {
|
||||
y *= 0x1p127f;
|
||||
n -= 127;
|
||||
if (n > 127)
|
||||
n = 127;
|
||||
}
|
||||
} else if (n < -126) {
|
||||
y *= 0x1p-126f;
|
||||
n += 126;
|
||||
if (n < -126) {
|
||||
y *= 0x1p-126f;
|
||||
n += 126;
|
||||
if (n < -126)
|
||||
n = -126;
|
||||
}
|
||||
}
|
||||
u.i = (uint32_t)(0x7f+n)<<23;
|
||||
x = y * u.f;
|
||||
return x;
|
||||
}
|
||||
|
||||
/*****************************************************************************/
|
||||
/*****************************************************************************/
|
||||
// powf from musl-0.9.15
|
||||
/*****************************************************************************/
|
||||
/*****************************************************************************/
|
||||
|
||||
/* origin: FreeBSD /usr/src/lib/msun/src/e_powf.c */
|
||||
/*
|
||||
* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
|
||||
*/
|
||||
/*
|
||||
* ====================================================
|
||||
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
|
||||
*
|
||||
* Developed at SunPro, a Sun Microsystems, Inc. business.
|
||||
* Permission to use, copy, modify, and distribute this
|
||||
* software is freely granted, provided that this notice
|
||||
* is preserved.
|
||||
* ====================================================
|
||||
*/
|
||||
|
||||
static const float
|
||||
bp[] = {1.0, 1.5,},
|
||||
dp_h[] = { 0.0, 5.84960938e-01,}, /* 0x3f15c000 */
|
||||
dp_l[] = { 0.0, 1.56322085e-06,}, /* 0x35d1cfdc */
|
||||
two24 = 16777216.0, /* 0x4b800000 */
|
||||
huge = 1.0e30,
|
||||
tiny = 1.0e-30,
|
||||
/* poly coefs for (3/2)*(log(x)-2s-2/3*s**3 */
|
||||
L1 = 6.0000002384e-01, /* 0x3f19999a */
|
||||
L2 = 4.2857143283e-01, /* 0x3edb6db7 */
|
||||
L3 = 3.3333334327e-01, /* 0x3eaaaaab */
|
||||
L4 = 2.7272811532e-01, /* 0x3e8ba305 */
|
||||
L5 = 2.3066075146e-01, /* 0x3e6c3255 */
|
||||
L6 = 2.0697501302e-01, /* 0x3e53f142 */
|
||||
P1 = 1.6666667163e-01, /* 0x3e2aaaab */
|
||||
P2 = -2.7777778450e-03, /* 0xbb360b61 */
|
||||
P3 = 6.6137559770e-05, /* 0x388ab355 */
|
||||
P4 = -1.6533901999e-06, /* 0xb5ddea0e */
|
||||
P5 = 4.1381369442e-08, /* 0x3331bb4c */
|
||||
lg2 = 6.9314718246e-01, /* 0x3f317218 */
|
||||
lg2_h = 6.93145752e-01, /* 0x3f317200 */
|
||||
lg2_l = 1.42860654e-06, /* 0x35bfbe8c */
|
||||
ovt = 4.2995665694e-08, /* -(128-log2(ovfl+.5ulp)) */
|
||||
cp = 9.6179670095e-01, /* 0x3f76384f =2/(3ln2) */
|
||||
cp_h = 9.6191406250e-01, /* 0x3f764000 =12b cp */
|
||||
cp_l = -1.1736857402e-04, /* 0xb8f623c6 =tail of cp_h */
|
||||
ivln2 = 1.4426950216e+00, /* 0x3fb8aa3b =1/ln2 */
|
||||
ivln2_h = 1.4426879883e+00, /* 0x3fb8aa00 =16b 1/ln2*/
|
||||
ivln2_l = 7.0526075433e-06; /* 0x36eca570 =1/ln2 tail*/
|
||||
|
||||
float powf(float x, float y)
|
||||
{
|
||||
float z,ax,z_h,z_l,p_h,p_l;
|
||||
float y1,t1,t2,r,s,sn,t,u,v,w;
|
||||
int32_t i,j,k,yisint,n;
|
||||
int32_t hx,hy,ix,iy,is;
|
||||
|
||||
GET_FLOAT_WORD(hx, x);
|
||||
GET_FLOAT_WORD(hy, y);
|
||||
ix = hx & 0x7fffffff;
|
||||
iy = hy & 0x7fffffff;
|
||||
|
||||
/* x**0 = 1, even if x is NaN */
|
||||
if (iy == 0)
|
||||
return 1.0f;
|
||||
/* 1**y = 1, even if y is NaN */
|
||||
if (hx == 0x3f800000)
|
||||
return 1.0f;
|
||||
/* NaN if either arg is NaN */
|
||||
if (ix > 0x7f800000 || iy > 0x7f800000)
|
||||
return x + y;
|
||||
|
||||
/* determine if y is an odd int when x < 0
|
||||
* yisint = 0 ... y is not an integer
|
||||
* yisint = 1 ... y is an odd int
|
||||
* yisint = 2 ... y is an even int
|
||||
*/
|
||||
yisint = 0;
|
||||
if (hx < 0) {
|
||||
if (iy >= 0x4b800000)
|
||||
yisint = 2; /* even integer y */
|
||||
else if (iy >= 0x3f800000) {
|
||||
k = (iy>>23) - 0x7f; /* exponent */
|
||||
j = iy>>(23-k);
|
||||
if ((j<<(23-k)) == iy)
|
||||
yisint = 2 - (j & 1);
|
||||
}
|
||||
}
|
||||
|
||||
/* special value of y */
|
||||
if (iy == 0x7f800000) { /* y is +-inf */
|
||||
if (ix == 0x3f800000) /* (-1)**+-inf is 1 */
|
||||
return 1.0f;
|
||||
else if (ix > 0x3f800000) /* (|x|>1)**+-inf = inf,0 */
|
||||
return hy >= 0 ? y : 0.0f;
|
||||
else if (ix != 0) /* (|x|<1)**+-inf = 0,inf if x!=0 */
|
||||
return hy >= 0 ? 0.0f: -y;
|
||||
}
|
||||
if (iy == 0x3f800000) /* y is +-1 */
|
||||
return hy >= 0 ? x : 1.0f/x;
|
||||
if (hy == 0x40000000) /* y is 2 */
|
||||
return x*x;
|
||||
if (hy == 0x3f000000) { /* y is 0.5 */
|
||||
if (hx >= 0) /* x >= +0 */
|
||||
return sqrtf(x);
|
||||
}
|
||||
|
||||
ax = fabsf(x);
|
||||
/* special value of x */
|
||||
if (ix == 0x7f800000 || ix == 0 || ix == 0x3f800000) { /* x is +-0,+-inf,+-1 */
|
||||
z = ax;
|
||||
if (hy < 0) /* z = (1/|x|) */
|
||||
z = 1.0f/z;
|
||||
if (hx < 0) {
|
||||
if (((ix-0x3f800000)|yisint) == 0) {
|
||||
z = (z-z)/(z-z); /* (-1)**non-int is NaN */
|
||||
} else if (yisint == 1)
|
||||
z = -z; /* (x<0)**odd = -(|x|**odd) */
|
||||
}
|
||||
return z;
|
||||
}
|
||||
|
||||
sn = 1.0f; /* sign of result */
|
||||
if (hx < 0) {
|
||||
if (yisint == 0) /* (x<0)**(non-int) is NaN */
|
||||
return (x-x)/(x-x);
|
||||
if (yisint == 1) /* (x<0)**(odd int) */
|
||||
sn = -1.0f;
|
||||
}
|
||||
|
||||
/* |y| is huge */
|
||||
if (iy > 0x4d000000) { /* if |y| > 2**27 */
|
||||
/* over/underflow if x is not close to one */
|
||||
if (ix < 0x3f7ffff8)
|
||||
return hy < 0 ? sn*huge*huge : sn*tiny*tiny;
|
||||
if (ix > 0x3f800007)
|
||||
return hy > 0 ? sn*huge*huge : sn*tiny*tiny;
|
||||
/* now |1-x| is tiny <= 2**-20, suffice to compute
|
||||
log(x) by x-x^2/2+x^3/3-x^4/4 */
|
||||
t = ax - 1; /* t has 20 trailing zeros */
|
||||
w = (t*t)*(0.5f - t*(0.333333333333f - t*0.25f));
|
||||
u = ivln2_h*t; /* ivln2_h has 16 sig. bits */
|
||||
v = t*ivln2_l - w*ivln2;
|
||||
t1 = u + v;
|
||||
GET_FLOAT_WORD(is, t1);
|
||||
SET_FLOAT_WORD(t1, is & 0xfffff000);
|
||||
t2 = v - (t1-u);
|
||||
} else {
|
||||
float s2,s_h,s_l,t_h,t_l;
|
||||
n = 0;
|
||||
/* take care subnormal number */
|
||||
if (ix < 0x00800000) {
|
||||
ax *= two24;
|
||||
n -= 24;
|
||||
GET_FLOAT_WORD(ix, ax);
|
||||
}
|
||||
n += ((ix)>>23) - 0x7f;
|
||||
j = ix & 0x007fffff;
|
||||
/* determine interval */
|
||||
ix = j | 0x3f800000; /* normalize ix */
|
||||
if (j <= 0x1cc471) /* |x|<sqrt(3/2) */
|
||||
k = 0;
|
||||
else if (j < 0x5db3d7) /* |x|<sqrt(3) */
|
||||
k = 1;
|
||||
else {
|
||||
k = 0;
|
||||
n += 1;
|
||||
ix -= 0x00800000;
|
||||
}
|
||||
SET_FLOAT_WORD(ax, ix);
|
||||
|
||||
/* compute s = s_h+s_l = (x-1)/(x+1) or (x-1.5)/(x+1.5) */
|
||||
u = ax - bp[k]; /* bp[0]=1.0, bp[1]=1.5 */
|
||||
v = 1.0f/(ax+bp[k]);
|
||||
s = u*v;
|
||||
s_h = s;
|
||||
GET_FLOAT_WORD(is, s_h);
|
||||
SET_FLOAT_WORD(s_h, is & 0xfffff000);
|
||||
/* t_h=ax+bp[k] High */
|
||||
is = ((ix>>1) & 0xfffff000) | 0x20000000;
|
||||
SET_FLOAT_WORD(t_h, is + 0x00400000 + (k<<21));
|
||||
t_l = ax - (t_h - bp[k]);
|
||||
s_l = v*((u - s_h*t_h) - s_h*t_l);
|
||||
/* compute log(ax) */
|
||||
s2 = s*s;
|
||||
r = s2*s2*(L1+s2*(L2+s2*(L3+s2*(L4+s2*(L5+s2*L6)))));
|
||||
r += s_l*(s_h+s);
|
||||
s2 = s_h*s_h;
|
||||
t_h = 3.0f + s2 + r;
|
||||
GET_FLOAT_WORD(is, t_h);
|
||||
SET_FLOAT_WORD(t_h, is & 0xfffff000);
|
||||
t_l = r - ((t_h - 3.0f) - s2);
|
||||
/* u+v = s*(1+...) */
|
||||
u = s_h*t_h;
|
||||
v = s_l*t_h + t_l*s;
|
||||
/* 2/(3log2)*(s+...) */
|
||||
p_h = u + v;
|
||||
GET_FLOAT_WORD(is, p_h);
|
||||
SET_FLOAT_WORD(p_h, is & 0xfffff000);
|
||||
p_l = v - (p_h - u);
|
||||
z_h = cp_h*p_h; /* cp_h+cp_l = 2/(3*log2) */
|
||||
z_l = cp_l*p_h + p_l*cp+dp_l[k];
|
||||
/* log2(ax) = (s+..)*2/(3*log2) = n + dp_h + z_h + z_l */
|
||||
t = (float)n;
|
||||
t1 = (((z_h + z_l) + dp_h[k]) + t);
|
||||
GET_FLOAT_WORD(is, t1);
|
||||
SET_FLOAT_WORD(t1, is & 0xfffff000);
|
||||
t2 = z_l - (((t1 - t) - dp_h[k]) - z_h);
|
||||
}
|
||||
|
||||
/* split up y into y1+y2 and compute (y1+y2)*(t1+t2) */
|
||||
GET_FLOAT_WORD(is, y);
|
||||
SET_FLOAT_WORD(y1, is & 0xfffff000);
|
||||
p_l = (y-y1)*t1 + y*t2;
|
||||
p_h = y1*t1;
|
||||
z = p_l + p_h;
|
||||
GET_FLOAT_WORD(j, z);
|
||||
if (j > 0x43000000) /* if z > 128 */
|
||||
return sn*huge*huge; /* overflow */
|
||||
else if (j == 0x43000000) { /* if z == 128 */
|
||||
if (p_l + ovt > z - p_h)
|
||||
return sn*huge*huge; /* overflow */
|
||||
} else if ((j&0x7fffffff) > 0x43160000) /* z < -150 */ // FIXME: check should be (uint32_t)j > 0xc3160000
|
||||
return sn*tiny*tiny; /* underflow */
|
||||
else if (j == 0xc3160000) { /* z == -150 */
|
||||
if (p_l <= z-p_h)
|
||||
return sn*tiny*tiny; /* underflow */
|
||||
}
|
||||
/*
|
||||
* compute 2**(p_h+p_l)
|
||||
*/
|
||||
i = j & 0x7fffffff;
|
||||
k = (i>>23) - 0x7f;
|
||||
n = 0;
|
||||
if (i > 0x3f000000) { /* if |z| > 0.5, set n = [z+0.5] */
|
||||
n = j + (0x00800000>>(k+1));
|
||||
k = ((n&0x7fffffff)>>23) - 0x7f; /* new k for n */
|
||||
SET_FLOAT_WORD(t, n & ~(0x007fffff>>k));
|
||||
n = ((n&0x007fffff)|0x00800000)>>(23-k);
|
||||
if (j < 0)
|
||||
n = -n;
|
||||
p_h -= t;
|
||||
}
|
||||
t = p_l + p_h;
|
||||
GET_FLOAT_WORD(is, t);
|
||||
SET_FLOAT_WORD(t, is & 0xffff8000);
|
||||
u = t*lg2_h;
|
||||
v = (p_l-(t-p_h))*lg2 + t*lg2_l;
|
||||
z = u + v;
|
||||
w = v - (z - u);
|
||||
t = z*z;
|
||||
t1 = z - t*(P1+t*(P2+t*(P3+t*(P4+t*P5))));
|
||||
r = (z*t1)/(t1-2.0f) - (w+z*w);
|
||||
z = 1.0f - (r - z);
|
||||
GET_FLOAT_WORD(j, z);
|
||||
j += n<<23;
|
||||
if ((j>>23) <= 0) /* subnormal output */
|
||||
z = scalbnf(z, n);
|
||||
else
|
||||
SET_FLOAT_WORD(z, j);
|
||||
return sn*z;
|
||||
}
|
||||
|
||||
/*****************************************************************************/
|
||||
/*****************************************************************************/
|
||||
// expf from musl-0.9.15
|
||||
/*****************************************************************************/
|
||||
/*****************************************************************************/
|
||||
|
||||
/* origin: FreeBSD /usr/src/lib/msun/src/e_expf.c */
|
||||
/*
|
||||
* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
|
||||
*/
|
||||
/*
|
||||
* ====================================================
|
||||
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
|
||||
*
|
||||
* Developed at SunPro, a Sun Microsystems, Inc. business.
|
||||
* Permission to use, copy, modify, and distribute this
|
||||
* software is freely granted, provided that this notice
|
||||
* is preserved.
|
||||
* ====================================================
|
||||
*/
|
||||
|
||||
static const float
|
||||
half[2] = {0.5,-0.5},
|
||||
ln2hi = 6.9314575195e-1f, /* 0x3f317200 */
|
||||
ln2lo = 1.4286067653e-6f, /* 0x35bfbe8e */
|
||||
invln2 = 1.4426950216e+0f, /* 0x3fb8aa3b */
|
||||
/*
|
||||
* Domain [-0.34568, 0.34568], range ~[-4.278e-9, 4.447e-9]:
|
||||
* |x*(exp(x)+1)/(exp(x)-1) - p(x)| < 2**-27.74
|
||||
*/
|
||||
expf_P1 = 1.6666625440e-1f, /* 0xaaaa8f.0p-26 */
|
||||
expf_P2 = -2.7667332906e-3f; /* -0xb55215.0p-32 */
|
||||
|
||||
float expf(float x)
|
||||
{
|
||||
float_t hi, lo, c, xx, y;
|
||||
int k, sign;
|
||||
uint32_t hx;
|
||||
|
||||
GET_FLOAT_WORD(hx, x);
|
||||
sign = hx >> 31; /* sign bit of x */
|
||||
hx &= 0x7fffffff; /* high word of |x| */
|
||||
|
||||
/* special cases */
|
||||
if (hx >= 0x42aeac50) { /* if |x| >= -87.33655f or NaN */
|
||||
if (hx >= 0x42b17218 && !sign) { /* x >= 88.722839f */
|
||||
/* overflow */
|
||||
x *= 0x1p127f;
|
||||
return x;
|
||||
}
|
||||
if (sign) {
|
||||
/* underflow */
|
||||
FORCE_EVAL(-0x1p-149f/x);
|
||||
if (hx >= 0x42cff1b5) /* x <= -103.972084f */
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
/* argument reduction */
|
||||
if (hx > 0x3eb17218) { /* if |x| > 0.5 ln2 */
|
||||
if (hx > 0x3f851592) /* if |x| > 1.5 ln2 */
|
||||
k = invln2*x + half[sign];
|
||||
else
|
||||
k = 1 - sign - sign;
|
||||
hi = x - k*ln2hi; /* k*ln2hi is exact here */
|
||||
lo = k*ln2lo;
|
||||
x = hi - lo;
|
||||
} else if (hx > 0x39000000) { /* |x| > 2**-14 */
|
||||
k = 0;
|
||||
hi = x;
|
||||
lo = 0;
|
||||
} else {
|
||||
/* raise inexact */
|
||||
FORCE_EVAL(0x1p127f + x);
|
||||
return 1 + x;
|
||||
}
|
||||
|
||||
/* x is now in primary range */
|
||||
xx = x*x;
|
||||
c = x - xx*(expf_P1+xx*expf_P2);
|
||||
y = 1 + (x*c/(2-c) - lo + hi);
|
||||
if (k == 0)
|
||||
return y;
|
||||
return scalbnf(y, k);
|
||||
}
|
||||
|
||||
/*****************************************************************************/
|
||||
/*****************************************************************************/
|
||||
// expm1f from musl-0.9.15
|
||||
/*****************************************************************************/
|
||||
/*****************************************************************************/
|
||||
|
||||
/* origin: FreeBSD /usr/src/lib/msun/src/s_expm1f.c */
|
||||
/*
|
||||
* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
|
||||
*/
|
||||
/*
|
||||
* ====================================================
|
||||
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
|
||||
*
|
||||
* Developed at SunPro, a Sun Microsystems, Inc. business.
|
||||
* Permission to use, copy, modify, and distribute this
|
||||
* software is freely granted, provided that this notice
|
||||
* is preserved.
|
||||
* ====================================================
|
||||
*/
|
||||
|
||||
static const float
|
||||
o_threshold = 8.8721679688e+01, /* 0x42b17180 */
|
||||
ln2_hi = 6.9313812256e-01, /* 0x3f317180 */
|
||||
ln2_lo = 9.0580006145e-06, /* 0x3717f7d1 */
|
||||
//invln2 = 1.4426950216e+00, /* 0x3fb8aa3b */
|
||||
/*
|
||||
* Domain [-0.34568, 0.34568], range ~[-6.694e-10, 6.696e-10]:
|
||||
* |6 / x * (1 + 2 * (1 / (exp(x) - 1) - 1 / x)) - q(x)| < 2**-30.04
|
||||
* Scaled coefficients: Qn_here = 2**n * Qn_for_q (see s_expm1.c):
|
||||
*/
|
||||
Q1 = -3.3333212137e-2, /* -0x888868.0p-28 */
|
||||
Q2 = 1.5807170421e-3; /* 0xcf3010.0p-33 */
|
||||
|
||||
float expm1f(float x)
|
||||
{
|
||||
float_t y,hi,lo,c,t,e,hxs,hfx,r1,twopk;
|
||||
union {float f; uint32_t i;} u = {x};
|
||||
uint32_t hx = u.i & 0x7fffffff;
|
||||
int k, sign = u.i >> 31;
|
||||
|
||||
/* filter out huge and non-finite argument */
|
||||
if (hx >= 0x4195b844) { /* if |x|>=27*ln2 */
|
||||
if (hx > 0x7f800000) /* NaN */
|
||||
return x;
|
||||
if (sign)
|
||||
return -1;
|
||||
if (x > o_threshold) {
|
||||
x *= 0x1p127f;
|
||||
return x;
|
||||
}
|
||||
}
|
||||
|
||||
/* argument reduction */
|
||||
if (hx > 0x3eb17218) { /* if |x| > 0.5 ln2 */
|
||||
if (hx < 0x3F851592) { /* and |x| < 1.5 ln2 */
|
||||
if (!sign) {
|
||||
hi = x - ln2_hi;
|
||||
lo = ln2_lo;
|
||||
k = 1;
|
||||
} else {
|
||||
hi = x + ln2_hi;
|
||||
lo = -ln2_lo;
|
||||
k = -1;
|
||||
}
|
||||
} else {
|
||||
k = invln2*x + (sign ? -0.5f : 0.5f);
|
||||
t = k;
|
||||
hi = x - t*ln2_hi; /* t*ln2_hi is exact here */
|
||||
lo = t*ln2_lo;
|
||||
}
|
||||
x = hi-lo;
|
||||
c = (hi-x)-lo;
|
||||
} else if (hx < 0x33000000) { /* when |x|<2**-25, return x */
|
||||
if (hx < 0x00800000)
|
||||
FORCE_EVAL(x*x);
|
||||
return x;
|
||||
} else
|
||||
k = 0;
|
||||
|
||||
/* x is now in primary range */
|
||||
hfx = 0.5f*x;
|
||||
hxs = x*hfx;
|
||||
r1 = 1.0f+hxs*(Q1+hxs*Q2);
|
||||
t = 3.0f - r1*hfx;
|
||||
e = hxs*((r1-t)/(6.0f - x*t));
|
||||
if (k == 0) /* c is 0 */
|
||||
return x - (x*e-hxs);
|
||||
e = x*(e-c) - c;
|
||||
e -= hxs;
|
||||
/* exp(x) ~ 2^k (x_reduced - e + 1) */
|
||||
if (k == -1)
|
||||
return 0.5f*(x-e) - 0.5f;
|
||||
if (k == 1) {
|
||||
if (x < -0.25f)
|
||||
return -2.0f*(e-(x+0.5f));
|
||||
return 1.0f + 2.0f*(x-e);
|
||||
}
|
||||
u.i = (0x7f+k)<<23; /* 2^k */
|
||||
twopk = u.f;
|
||||
if (k < 0 || k > 56) { /* suffice to return exp(x)-1 */
|
||||
y = x - e + 1.0f;
|
||||
if (k == 128)
|
||||
y = y*2.0f*0x1p127f;
|
||||
else
|
||||
y = y*twopk;
|
||||
return y - 1.0f;
|
||||
}
|
||||
u.i = (0x7f-k)<<23; /* 2^-k */
|
||||
if (k < 23)
|
||||
y = (x-e+(1-u.f))*twopk;
|
||||
else
|
||||
y = (x-(e+u.f)+1)*twopk;
|
||||
return y;
|
||||
}
|
||||
|
||||
/*****************************************************************************/
|
||||
/*****************************************************************************/
|
||||
// __expo2f from musl-0.9.15
|
||||
/*****************************************************************************/
|
||||
/*****************************************************************************/
|
||||
|
||||
/* k is such that k*ln2 has minimal relative error and x - kln2 > log(FLT_MIN) */
|
||||
static const int k = 235;
|
||||
static const float kln2 = 0x1.45c778p+7f;
|
||||
|
||||
/* expf(x)/2 for x >= log(FLT_MAX), slightly better than 0.5f*expf(x/2)*expf(x/2) */
|
||||
float __expo2f(float x)
|
||||
{
|
||||
float scale;
|
||||
|
||||
/* note that k is odd and scale*scale overflows */
|
||||
SET_FLOAT_WORD(scale, (uint32_t)(0x7f + k/2) << 23);
|
||||
/* exp(x - k ln2) * 2**(k-1) */
|
||||
return expf(x - kln2) * scale * scale;
|
||||
}
|
||||
|
||||
/*****************************************************************************/
|
||||
/*****************************************************************************/
|
||||
// logf from musl-0.9.15
|
||||
/*****************************************************************************/
|
||||
/*****************************************************************************/
|
||||
|
||||
/* origin: FreeBSD /usr/src/lib/msun/src/e_logf.c */
|
||||
/*
|
||||
* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
|
||||
*/
|
||||
/*
|
||||
* ====================================================
|
||||
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
|
||||
*
|
||||
* Developed at SunPro, a Sun Microsystems, Inc. business.
|
||||
* Permission to use, copy, modify, and distribute this
|
||||
* software is freely granted, provided that this notice
|
||||
* is preserved.
|
||||
* ====================================================
|
||||
*/
|
||||
|
||||
static const float
|
||||
/* |(log(1+s)-log(1-s))/s - Lg(s)| < 2**-34.24 (~[-4.95e-11, 4.97e-11]). */
|
||||
Lg1 = 0xaaaaaa.0p-24, /* 0.66666662693 */
|
||||
Lg2 = 0xccce13.0p-25, /* 0.40000972152 */
|
||||
Lg3 = 0x91e9ee.0p-25, /* 0.28498786688 */
|
||||
Lg4 = 0xf89e26.0p-26; /* 0.24279078841 */
|
||||
|
||||
float logf(float x)
|
||||
{
|
||||
union {float f; uint32_t i;} u = {x};
|
||||
float_t hfsq,f,s,z,R,w,t1,t2,dk;
|
||||
uint32_t ix;
|
||||
int k;
|
||||
|
||||
ix = u.i;
|
||||
k = 0;
|
||||
if (ix < 0x00800000 || ix>>31) { /* x < 2**-126 */
|
||||
if (ix<<1 == 0)
|
||||
return -1/(x*x); /* log(+-0)=-inf */
|
||||
if (ix>>31)
|
||||
return (x-x)/0.0f; /* log(-#) = NaN */
|
||||
/* subnormal number, scale up x */
|
||||
k -= 25;
|
||||
x *= 0x1p25f;
|
||||
u.f = x;
|
||||
ix = u.i;
|
||||
} else if (ix >= 0x7f800000) {
|
||||
return x;
|
||||
} else if (ix == 0x3f800000)
|
||||
return 0;
|
||||
|
||||
/* reduce x into [sqrt(2)/2, sqrt(2)] */
|
||||
ix += 0x3f800000 - 0x3f3504f3;
|
||||
k += (int)(ix>>23) - 0x7f;
|
||||
ix = (ix&0x007fffff) + 0x3f3504f3;
|
||||
u.i = ix;
|
||||
x = u.f;
|
||||
|
||||
f = x - 1.0f;
|
||||
s = f/(2.0f + f);
|
||||
z = s*s;
|
||||
w = z*z;
|
||||
t1= w*(Lg2+w*Lg4);
|
||||
t2= z*(Lg1+w*Lg3);
|
||||
R = t2 + t1;
|
||||
hfsq = 0.5f*f*f;
|
||||
dk = k;
|
||||
return s*(hfsq+R) + dk*ln2_lo - hfsq + f + dk*ln2_hi;
|
||||
}
|
||||
|
||||
/*****************************************************************************/
|
||||
/*****************************************************************************/
|
||||
// coshf from musl-0.9.15
|
||||
/*****************************************************************************/
|
||||
/*****************************************************************************/
|
||||
|
||||
float coshf(float x)
|
||||
{
|
||||
union {float f; uint32_t i;} u = {.f = x};
|
||||
uint32_t w;
|
||||
float t;
|
||||
|
||||
/* |x| */
|
||||
u.i &= 0x7fffffff;
|
||||
x = u.f;
|
||||
w = u.i;
|
||||
|
||||
/* |x| < log(2) */
|
||||
if (w < 0x3f317217) {
|
||||
if (w < 0x3f800000 - (12<<23)) {
|
||||
FORCE_EVAL(x + 0x1p120f);
|
||||
return 1;
|
||||
}
|
||||
t = expm1f(x);
|
||||
return 1 + t*t/(2*(1+t));
|
||||
}
|
||||
|
||||
/* |x| < log(FLT_MAX) */
|
||||
if (w < 0x42b17217) {
|
||||
t = expf(x);
|
||||
return 0.5f*(t + 1/t);
|
||||
}
|
||||
|
||||
/* |x| > log(FLT_MAX) or nan */
|
||||
t = __expo2f(x);
|
||||
return t;
|
||||
}
|
||||
|
||||
/*****************************************************************************/
|
||||
/*****************************************************************************/
|
||||
// sinhf from musl-0.9.15
|
||||
/*****************************************************************************/
|
||||
/*****************************************************************************/
|
||||
|
||||
float sinhf(float x)
|
||||
{
|
||||
union {float f; uint32_t i;} u = {.f = x};
|
||||
uint32_t w;
|
||||
float t, h, absx;
|
||||
|
||||
h = 0.5;
|
||||
if (u.i >> 31)
|
||||
h = -h;
|
||||
/* |x| */
|
||||
u.i &= 0x7fffffff;
|
||||
absx = u.f;
|
||||
w = u.i;
|
||||
|
||||
/* |x| < log(FLT_MAX) */
|
||||
if (w < 0x42b17217) {
|
||||
t = expm1f(absx);
|
||||
if (w < 0x3f800000) {
|
||||
if (w < 0x3f800000 - (12<<23))
|
||||
return x;
|
||||
return h*(2*t - t*t/(t+1));
|
||||
}
|
||||
return h*(t + t/(t+1));
|
||||
}
|
||||
|
||||
/* |x| > logf(FLT_MAX) or nan */
|
||||
t = 2*h*__expo2f(absx);
|
||||
return t;
|
||||
}
|
||||
@ -2,22 +2,18 @@
|
||||
|
||||
// options to control how Micro Python is built
|
||||
|
||||
#define MICROPY_EMIT_X64 (0)
|
||||
#define MICROPY_EMIT_THUMB (0)
|
||||
#define MICROPY_EMIT_INLINE_THUMB (0)
|
||||
#define MICROPY_MEM_STATS (0)
|
||||
#define MICROPY_DEBUG_PRINTERS (0)
|
||||
#define MICROPY_ENABLE_GC (0)
|
||||
#define MICROPY_ENABLE_FINALISER (0)
|
||||
#define MICROPY_ENABLE_REPL_HELPERS (1)
|
||||
#define MICROPY_LONGINT_IMPL (MICROPY_LONGINT_IMPL_MPZ)
|
||||
#define MICROPY_FLOAT_IMPL (MICROPY_FLOAT_IMPL_FLOAT)
|
||||
#define MICROPY_PATH_MAX (128)
|
||||
#define MICROPY_ENABLE_MOD_IO (0)
|
||||
|
||||
// extra built in names to add to the global namespace
|
||||
extern const struct _mp_obj_fun_native_t mp_builtin_help_obj;
|
||||
#define MICROPY_EXTRA_BUILTINS \
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_help), (mp_obj_t)&mp_builtin_help_obj },
|
||||
#define MICROPY_ENABLE_REPL_HELPERS (0)
|
||||
#define MICROPY_ENABLE_LEXER_UNIX (0)
|
||||
#define MICROPY_ENABLE_SOURCE_LINE (0)
|
||||
#define MICROPY_LONGINT_IMPL (MICROPY_LONGINT_IMPL_NONE)
|
||||
#define MICROPY_FLOAT_IMPL (MICROPY_FLOAT_IMPL_NONE)
|
||||
#define MICROPY_PATH_MAX (512)
|
||||
|
||||
// type definitions for the specific machine
|
||||
|
||||
@ -31,3 +27,8 @@ typedef uint32_t machine_uint_t; // must be pointer size
|
||||
typedef void *machine_ptr_t; // must be of pointer size
|
||||
typedef const void *machine_const_ptr_t; // must be of pointer size
|
||||
|
||||
// extra built in names to add to the global namespace
|
||||
extern const struct _mp_obj_fun_native_t mp_builtin_open_obj;
|
||||
#define MICROPY_EXTRA_BUILTINS \
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_open), (mp_obj_t)&mp_builtin_open_obj },
|
||||
|
||||
|
||||
@ -1,237 +0,0 @@
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
|
||||
#include <stm32f4xx_hal.h>
|
||||
|
||||
#include "nlr.h"
|
||||
#include "misc.h"
|
||||
#include "mpconfig.h"
|
||||
#include "qstr.h"
|
||||
#include "misc.h"
|
||||
#include "lexer.h"
|
||||
#include "parse.h"
|
||||
#include "obj.h"
|
||||
#include "parsehelper.h"
|
||||
#include "compile.h"
|
||||
#include "runtime.h"
|
||||
#include "repl.h"
|
||||
#include "gc.h"
|
||||
#include "gccollect.h"
|
||||
#include "systick.h"
|
||||
#include "pybstdio.h"
|
||||
#include "readline.h"
|
||||
#include "pyexec.h"
|
||||
#include "storage.h"
|
||||
#include "usb.h"
|
||||
#include "build/py/py-version.h"
|
||||
|
||||
pyexec_mode_kind_t pyexec_mode_kind = PYEXEC_MODE_FRIENDLY_REPL;
|
||||
STATIC bool repl_display_debugging_info = 0;
|
||||
|
||||
// parses, compiles and executes the code in the lexer
|
||||
// frees the lexer before returning
|
||||
bool parse_compile_execute(mp_lexer_t *lex, mp_parse_input_kind_t input_kind, bool is_repl) {
|
||||
mp_parse_error_kind_t parse_error_kind;
|
||||
mp_parse_node_t pn = mp_parse(lex, input_kind, &parse_error_kind);
|
||||
qstr source_name = mp_lexer_source_name(lex);
|
||||
|
||||
if (pn == MP_PARSE_NODE_NULL) {
|
||||
// parse error
|
||||
mp_parse_show_exception(lex, parse_error_kind);
|
||||
mp_lexer_free(lex);
|
||||
return false;
|
||||
}
|
||||
|
||||
mp_lexer_free(lex);
|
||||
|
||||
mp_obj_t module_fun = mp_compile(pn, source_name, MP_EMIT_OPT_NONE, is_repl);
|
||||
mp_parse_node_free(pn);
|
||||
|
||||
if (module_fun == mp_const_none) {
|
||||
return false;
|
||||
}
|
||||
|
||||
nlr_buf_t nlr;
|
||||
bool ret;
|
||||
uint32_t start = HAL_GetTick();
|
||||
if (nlr_push(&nlr) == 0) {
|
||||
usb_vcp_set_interrupt_char(VCP_CHAR_CTRL_C); // allow ctrl-C to interrupt us
|
||||
mp_call_function_0(module_fun);
|
||||
usb_vcp_set_interrupt_char(VCP_CHAR_NONE); // disable interrupt
|
||||
nlr_pop();
|
||||
ret = true;
|
||||
} else {
|
||||
// uncaught exception
|
||||
// FIXME it could be that an interrupt happens just before we disable it here
|
||||
usb_vcp_set_interrupt_char(VCP_CHAR_NONE); // disable interrupt
|
||||
mp_obj_print_exception((mp_obj_t)nlr.ret_val);
|
||||
ret = false;
|
||||
}
|
||||
|
||||
// display debugging info if wanted
|
||||
if (is_repl && repl_display_debugging_info) {
|
||||
uint32_t ticks = HAL_GetTick() - start; // TODO implement a function that does this properly
|
||||
printf("took %lu ms\n", ticks);
|
||||
gc_collect();
|
||||
// qstr info
|
||||
{
|
||||
uint n_pool, n_qstr, n_str_data_bytes, n_total_bytes;
|
||||
qstr_pool_info(&n_pool, &n_qstr, &n_str_data_bytes, &n_total_bytes);
|
||||
printf("qstr:\n n_pool=%u\n n_qstr=%u\n n_str_data_bytes=%u\n n_total_bytes=%u\n", n_pool, n_qstr, n_str_data_bytes, n_total_bytes);
|
||||
}
|
||||
|
||||
// GC info
|
||||
{
|
||||
gc_info_t info;
|
||||
gc_info(&info);
|
||||
printf("GC:\n");
|
||||
printf(" %lu total\n", info.total);
|
||||
printf(" %lu : %lu\n", info.used, info.free);
|
||||
printf(" 1=%lu 2=%lu m=%lu\n", info.num_1block, info.num_2block, info.max_block);
|
||||
}
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
int pyexec_raw_repl(void) {
|
||||
vstr_t line;
|
||||
vstr_init(&line, 32);
|
||||
|
||||
raw_repl_reset:
|
||||
stdout_tx_str("raw REPL; CTRL-B to exit\r\n");
|
||||
|
||||
for (;;) {
|
||||
vstr_reset(&line);
|
||||
stdout_tx_str(">");
|
||||
for (;;) {
|
||||
char c = stdin_rx_chr();
|
||||
if (c == VCP_CHAR_CTRL_A) {
|
||||
// reset raw REPL
|
||||
goto raw_repl_reset;
|
||||
} else if (c == VCP_CHAR_CTRL_B) {
|
||||
// change to friendly REPL
|
||||
stdout_tx_str("\r\n");
|
||||
vstr_clear(&line);
|
||||
pyexec_mode_kind = PYEXEC_MODE_FRIENDLY_REPL;
|
||||
return 0;
|
||||
} else if (c == VCP_CHAR_CTRL_C) {
|
||||
// clear line
|
||||
vstr_reset(&line);
|
||||
} else if (c == VCP_CHAR_CTRL_D) {
|
||||
// input finished
|
||||
break;
|
||||
} else if (c <= 127) {
|
||||
// let through any other ASCII character
|
||||
vstr_add_char(&line, c);
|
||||
}
|
||||
}
|
||||
|
||||
// indicate reception of command
|
||||
stdout_tx_str("OK");
|
||||
|
||||
if (line.len == 0) {
|
||||
// exit for a soft reset
|
||||
stdout_tx_str("\r\n");
|
||||
vstr_clear(&line);
|
||||
return 1;
|
||||
}
|
||||
|
||||
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, line.buf, line.len, 0);
|
||||
parse_compile_execute(lex, MP_PARSE_FILE_INPUT, false);
|
||||
|
||||
// indicate end of output with EOF character
|
||||
stdout_tx_str("\004");
|
||||
}
|
||||
}
|
||||
|
||||
int pyexec_friendly_repl(void) {
|
||||
vstr_t line;
|
||||
vstr_init(&line, 32);
|
||||
|
||||
#if defined(USE_HOST_MODE) && MICROPY_HW_HAS_LCD
|
||||
// in host mode, we enable the LCD for the repl
|
||||
mp_obj_t lcd_o = mp_call_function_0(mp_load_name(qstr_from_str("LCD")));
|
||||
mp_call_function_1(mp_load_attr(lcd_o, qstr_from_str("light")), mp_const_true);
|
||||
#endif
|
||||
|
||||
friendly_repl_reset:
|
||||
stdout_tx_str("Micro Python build " MICROPY_GIT_HASH " on " MICROPY_BUILD_DATE "; " MICROPY_HW_BOARD_NAME " with STM32F405RG\r\n");
|
||||
stdout_tx_str("Type \"help()\" for more information.\r\n");
|
||||
|
||||
// to test ctrl-C
|
||||
/*
|
||||
{
|
||||
uint32_t x[4] = {0x424242, 0xdeaddead, 0x242424, 0xdeadbeef};
|
||||
for (;;) {
|
||||
nlr_buf_t nlr;
|
||||
printf("pyexec_repl: %p\n", x);
|
||||
usb_vcp_set_interrupt_char(VCP_CHAR_CTRL_C);
|
||||
if (nlr_push(&nlr) == 0) {
|
||||
for (;;) {
|
||||
}
|
||||
} else {
|
||||
printf("break\n");
|
||||
}
|
||||
}
|
||||
}
|
||||
*/
|
||||
|
||||
for (;;) {
|
||||
vstr_reset(&line);
|
||||
int ret = readline(&line, ">>> ");
|
||||
|
||||
if (ret == VCP_CHAR_CTRL_A) {
|
||||
// change to raw REPL
|
||||
stdout_tx_str("\r\n");
|
||||
vstr_clear(&line);
|
||||
pyexec_mode_kind = PYEXEC_MODE_RAW_REPL;
|
||||
return 0;
|
||||
} else if (ret == VCP_CHAR_CTRL_B) {
|
||||
// reset friendly REPL
|
||||
stdout_tx_str("\r\n");
|
||||
goto friendly_repl_reset;
|
||||
} else if (ret == VCP_CHAR_CTRL_C) {
|
||||
// break
|
||||
stdout_tx_str("\r\n");
|
||||
continue;
|
||||
} else if (ret == VCP_CHAR_CTRL_D) {
|
||||
// exit for a soft reset
|
||||
stdout_tx_str("\r\n");
|
||||
vstr_clear(&line);
|
||||
return 1;
|
||||
} else if (vstr_len(&line) == 0) {
|
||||
continue;
|
||||
}
|
||||
|
||||
while (mp_repl_continue_with_input(vstr_str(&line))) {
|
||||
vstr_add_char(&line, '\n');
|
||||
int ret = readline(&line, "... ");
|
||||
if (ret == VCP_CHAR_CTRL_D) {
|
||||
// stop entering compound statement
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, vstr_str(&line), vstr_len(&line), 0);
|
||||
parse_compile_execute(lex, MP_PARSE_SINGLE_INPUT, true);
|
||||
}
|
||||
}
|
||||
|
||||
bool pyexec_file(const char *filename) {
|
||||
mp_lexer_t *lex = mp_lexer_new_from_file(filename);
|
||||
|
||||
if (lex == NULL) {
|
||||
printf("could not open file '%s' for reading\n", filename);
|
||||
return false;
|
||||
}
|
||||
|
||||
return parse_compile_execute(lex, MP_PARSE_FILE_INPUT, false);
|
||||
}
|
||||
|
||||
mp_obj_t pyb_set_repl_info(mp_obj_t o_value) {
|
||||
repl_display_debugging_info = mp_obj_get_int(o_value);
|
||||
return mp_const_none;
|
||||
}
|
||||
|
||||
MP_DEFINE_CONST_FUN_OBJ_1(pyb_set_repl_info_obj, pyb_set_repl_info);
|
||||
@ -1,12 +0,0 @@
|
||||
typedef enum {
|
||||
PYEXEC_MODE_RAW_REPL,
|
||||
PYEXEC_MODE_FRIENDLY_REPL,
|
||||
} pyexec_mode_kind_t;
|
||||
|
||||
extern pyexec_mode_kind_t pyexec_mode_kind;
|
||||
|
||||
int pyexec_raw_repl(void);
|
||||
int pyexec_friendly_repl(void);
|
||||
bool pyexec_file(const char *filename);
|
||||
|
||||
MP_DECLARE_CONST_FUN_OBJ(pyb_set_repl_info_obj);
|
||||
@ -1,148 +1 @@
|
||||
// qstrs specific to this port
|
||||
|
||||
Q(help)
|
||||
Q(pyb)
|
||||
Q(info)
|
||||
Q(sd_test)
|
||||
Q(present)
|
||||
Q(power)
|
||||
Q(stop)
|
||||
Q(standby)
|
||||
Q(source_dir)
|
||||
Q(main)
|
||||
Q(usb_mode)
|
||||
Q(sync)
|
||||
Q(gc)
|
||||
Q(repl_info)
|
||||
Q(delay)
|
||||
Q(udelay)
|
||||
Q(switch)
|
||||
Q(SW)
|
||||
Q(servo)
|
||||
Q(pwm)
|
||||
Q(read)
|
||||
Q(readall)
|
||||
Q(readline)
|
||||
Q(write)
|
||||
Q(hid)
|
||||
Q(time)
|
||||
Q(rng)
|
||||
Q(LCD)
|
||||
Q(SD)
|
||||
Q(SDcard)
|
||||
Q(gpio)
|
||||
Q(gpio_in)
|
||||
Q(gpio_out)
|
||||
Q(FileIO)
|
||||
// Entries for sys.path
|
||||
Q(0:/)
|
||||
Q(0:/src)
|
||||
Q(0:/lib)
|
||||
Q(Pin)
|
||||
Q(PinMap)
|
||||
Q(PinAF)
|
||||
Q(PinNamed)
|
||||
Q(rtc_info)
|
||||
Q(millis)
|
||||
Q(PULL_NONE)
|
||||
Q(PULL_UP)
|
||||
Q(PULL_DOWN)
|
||||
Q(PUSH_PULL)
|
||||
Q(OPEN_DRAIN)
|
||||
|
||||
// for Led object
|
||||
Q(Led)
|
||||
Q(on)
|
||||
Q(off)
|
||||
Q(toggle)
|
||||
Q(intensity)
|
||||
|
||||
// for Usart object
|
||||
Q(Usart)
|
||||
Q(status)
|
||||
Q(recv_chr)
|
||||
Q(send_chr)
|
||||
Q(send)
|
||||
|
||||
// for exti object
|
||||
Q(Exti)
|
||||
Q(line)
|
||||
Q(enable)
|
||||
Q(disable)
|
||||
Q(swint)
|
||||
Q(regs)
|
||||
Q(MODE_IRQ_RISING)
|
||||
Q(MODE_IRQ_FALLING)
|
||||
Q(MODE_IRQ_RISING_FALLING)
|
||||
Q(MODE_EVT_RISING)
|
||||
Q(MODE_EVT_FALLING)
|
||||
Q(MODE_EVT_RISING_FALLING)
|
||||
|
||||
// for I2C object
|
||||
Q(I2C)
|
||||
Q(is_ready)
|
||||
Q(mem_read)
|
||||
Q(mem_write)
|
||||
|
||||
// for Accel object
|
||||
Q(Accel)
|
||||
Q(x)
|
||||
Q(y)
|
||||
Q(z)
|
||||
Q(tilt)
|
||||
Q(filtered_xyz)
|
||||
|
||||
// for ADC object
|
||||
Q(ADC)
|
||||
Q(ADC_all)
|
||||
Q(read_channel)
|
||||
Q(read_core_temp)
|
||||
Q(read_core_vbat)
|
||||
Q(read_core_vref)
|
||||
|
||||
// for DAC object
|
||||
Q(DAC)
|
||||
Q(noise)
|
||||
Q(triangle)
|
||||
Q(dma)
|
||||
|
||||
// for Servo object
|
||||
Q(Servo)
|
||||
Q(pulse_width)
|
||||
Q(calibrate)
|
||||
Q(angle)
|
||||
Q(speed)
|
||||
|
||||
// for os module
|
||||
Q(os)
|
||||
Q(/)
|
||||
Q(listdir)
|
||||
Q(mkdir)
|
||||
Q(remove)
|
||||
Q(rmdir)
|
||||
Q(unlink)
|
||||
Q(sep)
|
||||
Q(urandom)
|
||||
|
||||
// for time module
|
||||
Q(time)
|
||||
Q(sleep)
|
||||
|
||||
// for input
|
||||
Q(input)
|
||||
|
||||
// for stm module
|
||||
Q(stm)
|
||||
Q(read8)
|
||||
Q(read16)
|
||||
Q(read32)
|
||||
Q(write8)
|
||||
Q(write16)
|
||||
Q(write32)
|
||||
Q(GPIOA)
|
||||
Q(GPIOB)
|
||||
Q(GPIOC)
|
||||
Q(GPIOD)
|
||||
Q(GPIO_IDR)
|
||||
Q(GPIO_BSRRL)
|
||||
Q(GPIO_BSRRH)
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user