liangkangnan
parent
b2827b2fb4
commit
36a2ffdf5a
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@ -0,0 +1,25 @@
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RISCV_ARCH := rv32im
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RISCV_ABI := ilp32
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RISCV_PATH := ../../../tools/gnu-mcu-eclipse-riscv-none-gcc-8.2.0-2.2-20190521-0004-win64/
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CFLAGS += -march=$(RISCV_ARCH)
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CFLAGS += -mabi=$(RISCV_ABI)
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CFLAGS += -static -mcmodel=medany -fvisibility=hidden -nostdlib -nostartfiles
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RISCV_GCC := $(abspath $(RISCV_PATH)/bin/riscv-none-embed-gcc)
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RISCV_AS := $(abspath $(RISCV_PATH)/bin/riscv-none-embed-as)
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RISCV_GXX := $(abspath $(RISCV_PATH)/bin/riscv-none-embed-g++)
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RISCV_OBJDUMP := $(abspath $(RISCV_PATH)/bin/riscv-none-embed-objdump)
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RISCV_GDB := $(abspath $(RISCV_PATH)/bin/riscv-none-embed-gdb)
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RISCV_AR := $(abspath $(RISCV_PATH)/bin/riscv-none-embed-ar)
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RISCV_OBJCOPY := $(abspath $(RISCV_PATH)/bin/riscv-none-embed-objcopy)
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RISCV_READELF := $(abspath $(RISCV_PATH)/bin/riscv-none-embed-readelf)
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.PHONY: all
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all:
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$(RISCV_GCC) $(CFLAGS) start.S main.c xprintf.c -Tlink.ld -o uart_tx
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$(RISCV_OBJCOPY) -O binary uart_tx uart_tx.bin
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$(RISCV_OBJDUMP) --disassemble-all uart_tx > uart_tx.dump
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@ -0,0 +1 @@
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串口发送例程。
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@ -0,0 +1,147 @@
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OUTPUT_ARCH( "riscv" )
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ENTRY(_start)
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MEMORY
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{
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flash (wxa!ri) : ORIGIN = 0x00000000, LENGTH = 4K
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ram (wxa!ri) : ORIGIN = 0x10000000, LENGTH = 2K
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}
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SECTIONS
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{
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__stack_size = DEFINED(__stack_size) ? __stack_size : 1K;
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.init :
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{
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KEEP (*(SORT_NONE(.init)))
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} >flash AT>flash
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.text :
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{
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*(.text.unlikely .text.unlikely.*)
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*(.text.startup .text.startup.*)
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*(.text .text.*)
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*(.gnu.linkonce.t.*)
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} >flash AT>flash
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. = ALIGN(4);
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PROVIDE (__etext = .);
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PROVIDE (_etext = .);
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PROVIDE (etext = .);
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.preinit_array :
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{
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PROVIDE_HIDDEN (__preinit_array_start = .);
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KEEP (*(.preinit_array))
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PROVIDE_HIDDEN (__preinit_array_end = .);
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} >flash AT>flash
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.init_array :
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{
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PROVIDE_HIDDEN (__init_array_start = .);
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KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
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KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .ctors))
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PROVIDE_HIDDEN (__init_array_end = .);
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} >flash AT>flash
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.fini_array :
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{
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PROVIDE_HIDDEN (__fini_array_start = .);
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KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))
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KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .dtors))
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PROVIDE_HIDDEN (__fini_array_end = .);
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} >flash AT>flash
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.ctors :
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{
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/* gcc uses crtbegin.o to find the start of
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the constructors, so we make sure it is
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first. Because this is a wildcard, it
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doesn't matter if the user does not
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actually link against crtbegin.o; the
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linker won't look for a file to match a
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wildcard. The wildcard also means that it
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doesn't matter which directory crtbegin.o
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is in. */
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KEEP (*crtbegin.o(.ctors))
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KEEP (*crtbegin?.o(.ctors))
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/* We don't want to include the .ctor section from
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the crtend.o file until after the sorted ctors.
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The .ctor section from the crtend file contains the
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end of ctors marker and it must be last */
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KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*(.ctors))
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} >flash AT>flash
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.dtors :
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{
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KEEP (*crtbegin.o(.dtors))
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KEEP (*crtbegin?.o(.dtors))
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KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*(.dtors))
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} >flash AT>flash
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.lalign :
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{
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. = ALIGN(4);
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PROVIDE( _data_lma = . );
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} >flash AT>flash
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.dalign :
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{
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. = ALIGN(4);
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PROVIDE( _data = . );
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} >ram AT>flash
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.data :
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{
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*(.rdata)
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*(.rodata .rodata.*)
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*(.gnu.linkonce.r.*)
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*(.data .data.*)
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*(.gnu.linkonce.d.*)
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. = ALIGN(8);
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PROVIDE( __global_pointer$ = . + 0x800 );
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*(.sdata .sdata.*)
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*(.gnu.linkonce.s.*)
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. = ALIGN(8);
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*(.srodata.cst16)
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*(.srodata.cst8)
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*(.srodata.cst4)
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*(.srodata.cst2)
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*(.srodata .srodata.*)
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} >ram AT>flash
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. = ALIGN(4);
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PROVIDE( _edata = . );
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PROVIDE( edata = . );
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PROVIDE( _fbss = . );
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PROVIDE( __bss_start = . );
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.bss :
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{
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*(.sbss*)
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*(.gnu.linkonce.sb.*)
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*(.bss .bss.*)
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*(.gnu.linkonce.b.*)
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*(COMMON)
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. = ALIGN(4);
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} >ram AT>ram
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. = ALIGN(8);
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PROVIDE( _end = . );
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PROVIDE( end = . );
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.stack ORIGIN(ram) + LENGTH(ram) - __stack_size :
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{
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PROVIDE( _heap_end = . );
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. = __stack_size;
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PROVIDE( _sp = . );
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} >ram AT>ram
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}
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@ -0,0 +1,32 @@
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#include <stdint.h>
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#include "xprintf.h"
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// UART0 regs
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#define UART0_BASE (0x30000000)
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#define UART0_CTRL (UART0_BASE + (0x00))
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#define UART0_STATUS (UART0_BASE + (0x04))
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#define UART0_BAUD (UART0_BASE + (0x08))
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#define UART0_TXDATA (UART0_BASE + (0x0c))
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#define UART0_REG(addr) (*((volatile uint32_t *)addr))
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static void uart_putc(uint8_t d)
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{
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while (UART0_REG(UART0_STATUS) & 0x1);
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UART0_REG(UART0_TXDATA) = d;
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}
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int main()
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{
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UART0_REG(UART0_CTRL) = 0x1;
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xdev_out(uart_putc);
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xprintf("%d hello world\n", 1);
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while (1);
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}
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@ -0,0 +1,46 @@
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.section .init;
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.globl _start;
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.type _start,@function
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_start:
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j _reset_handler
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_reset_handler:
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.option push
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.option norelax
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la gp, __global_pointer$
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.option pop
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la sp, _sp
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li x26, 0x00
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li x27, 0x00
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/* Load data section */
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la a0, _data_lma
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la a1, _data
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la a2, _edata
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bgeu a1, a2, 2f
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1:
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lw t0, (a0)
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sw t0, (a1)
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addi a0, a0, 4
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addi a1, a1, 4
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bltu a1, a2, 1b
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2:
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/* Clear bss section */
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la a0, __bss_start
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la a1, _end
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bgeu a0, a1, 2f
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1:
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sw zero, (a0)
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addi a0, a0, 4
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bltu a0, a1, 1b
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2:
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call main
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li x26, 0x01
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loop:
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j loop
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Binary file not shown.
Binary file not shown.
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@ -0,0 +1,563 @@
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uart_tx: file format elf32-littleriscv
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Disassembly of section .init:
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00000000 <_start>:
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0: 0040006f j 4 <_reset_handler>
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00000004 <_reset_handler>:
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4: 10001197 auipc gp,0x10001
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8: 86c18193 addi gp,gp,-1940 # 10000870 <__global_pointer$>
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c: f9018113 addi sp,gp,-112 # 10000800 <_sp>
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10: 00000d13 li s10,0
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14: 00000d93 li s11,0
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18: 6cc00513 li a0,1740
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1c: 10000597 auipc a1,0x10000
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20: fe458593 addi a1,a1,-28 # 10000000 <_data>
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24: 10000617 auipc a2,0x10000
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28: 04c60613 addi a2,a2,76 # 10000070 <__bss_start>
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2c: 00c5fc63 bgeu a1,a2,44 <_reset_handler+0x40>
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30: 00052283 lw t0,0(a0)
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34: 0055a023 sw t0,0(a1)
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38: 00450513 addi a0,a0,4
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3c: 00458593 addi a1,a1,4
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40: fec5e8e3 bltu a1,a2,30 <_reset_handler+0x2c>
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44: 10000517 auipc a0,0x10000
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48: 02c50513 addi a0,a0,44 # 10000070 <__bss_start>
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4c: 80818593 addi a1,gp,-2040 # 10000078 <_end>
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50: 00b57863 bgeu a0,a1,60 <_reset_handler+0x5c>
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54: 00052023 sw zero,0(a0)
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58: 00450513 addi a0,a0,4
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5c: feb56ce3 bltu a0,a1,54 <_reset_handler+0x50>
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60: 058000ef jal ra,b8 <main>
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64: 00100d13 li s10,1
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00000068 <loop>:
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68: 0000006f j 68 <loop>
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Disassembly of section .text:
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0000006c <uart_putc>:
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6c: fe010113 addi sp,sp,-32
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70: 00812e23 sw s0,28(sp)
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74: 02010413 addi s0,sp,32
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78: 00050793 mv a5,a0
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7c: fef407a3 sb a5,-17(s0)
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80: 00000013 nop
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84: 300007b7 lui a5,0x30000
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88: 00478793 addi a5,a5,4 # 30000004 <__global_pointer$+0x1ffff794>
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8c: 0007a783 lw a5,0(a5)
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90: 0017f793 andi a5,a5,1
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94: fe0798e3 bnez a5,84 <uart_putc+0x18>
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98: 300007b7 lui a5,0x30000
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9c: 00c78793 addi a5,a5,12 # 3000000c <__global_pointer$+0x1ffff79c>
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a0: fef44703 lbu a4,-17(s0)
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a4: 00e7a023 sw a4,0(a5)
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a8: 00000013 nop
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ac: 01c12403 lw s0,28(sp)
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b0: 02010113 addi sp,sp,32
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b4: 00008067 ret
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000000b8 <main>:
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b8: ff010113 addi sp,sp,-16
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bc: 00112623 sw ra,12(sp)
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c0: 00812423 sw s0,8(sp)
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c4: 01010413 addi s0,sp,16
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c8: 300007b7 lui a5,0x30000
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cc: 00100713 li a4,1
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d0: 00e7a023 sw a4,0(a5) # 30000000 <__global_pointer$+0x1ffff790>
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d4: 10000797 auipc a5,0x10000
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d8: fa078793 addi a5,a5,-96 # 10000074 <xfunc_out>
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dc: 00000717 auipc a4,0x0
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e0: f9070713 addi a4,a4,-112 # 6c <uart_putc>
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e4: 00e7a023 sw a4,0(a5)
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e8: 00100593 li a1,1
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ec: 10000517 auipc a0,0x10000
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f0: f1450513 addi a0,a0,-236 # 10000000 <_data>
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f4: 578000ef jal ra,66c <xprintf>
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f8: 0000006f j f8 <main+0x40>
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000000fc <xputc>:
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fc: fe010113 addi sp,sp,-32
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100: 00112e23 sw ra,28(sp)
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104: 00812c23 sw s0,24(sp)
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108: 02010413 addi s0,sp,32
|
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10c: 00050793 mv a5,a0
|
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110: fef407a3 sb a5,-17(s0)
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114: 10000797 auipc a5,0x10000
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||||
118: f5c78793 addi a5,a5,-164 # 10000070 <__bss_start>
|
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11c: 0007a783 lw a5,0(a5)
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120: 02078663 beqz a5,14c <xputc+0x50>
|
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124: 10000797 auipc a5,0x10000
|
||||
128: f4c78793 addi a5,a5,-180 # 10000070 <__bss_start>
|
||||
12c: 0007a783 lw a5,0(a5)
|
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130: 00178693 addi a3,a5,1
|
||||
134: 10000717 auipc a4,0x10000
|
||||
138: f3c70713 addi a4,a4,-196 # 10000070 <__bss_start>
|
||||
13c: 00d72023 sw a3,0(a4)
|
||||
140: fef44703 lbu a4,-17(s0)
|
||||
144: 00e78023 sb a4,0(a5)
|
||||
148: 02c0006f j 174 <xputc+0x78>
|
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14c: 10000797 auipc a5,0x10000
|
||||
150: f2878793 addi a5,a5,-216 # 10000074 <xfunc_out>
|
||||
154: 0007a783 lw a5,0(a5)
|
||||
158: 00078e63 beqz a5,174 <xputc+0x78>
|
||||
15c: 10000797 auipc a5,0x10000
|
||||
160: f1878793 addi a5,a5,-232 # 10000074 <xfunc_out>
|
||||
164: 0007a703 lw a4,0(a5)
|
||||
168: fef44783 lbu a5,-17(s0)
|
||||
16c: 00078513 mv a0,a5
|
||||
170: 000700e7 jalr a4
|
||||
174: 01c12083 lw ra,28(sp)
|
||||
178: 01812403 lw s0,24(sp)
|
||||
17c: 02010113 addi sp,sp,32
|
||||
180: 00008067 ret
|
||||
|
||||
00000184 <xputs>:
|
||||
184: fe010113 addi sp,sp,-32
|
||||
188: 00112e23 sw ra,28(sp)
|
||||
18c: 00812c23 sw s0,24(sp)
|
||||
190: 02010413 addi s0,sp,32
|
||||
194: fea42623 sw a0,-20(s0)
|
||||
198: 01c0006f j 1b4 <xputs+0x30>
|
||||
19c: fec42783 lw a5,-20(s0)
|
||||
1a0: 00178713 addi a4,a5,1
|
||||
1a4: fee42623 sw a4,-20(s0)
|
||||
1a8: 0007c783 lbu a5,0(a5)
|
||||
1ac: 00078513 mv a0,a5
|
||||
1b0: f4dff0ef jal ra,fc <xputc>
|
||||
1b4: fec42783 lw a5,-20(s0)
|
||||
1b8: 0007c783 lbu a5,0(a5)
|
||||
1bc: fe0790e3 bnez a5,19c <xputs+0x18>
|
||||
1c0: 00000013 nop
|
||||
1c4: 01c12083 lw ra,28(sp)
|
||||
1c8: 01812403 lw s0,24(sp)
|
||||
1cc: 02010113 addi sp,sp,32
|
||||
1d0: 00008067 ret
|
||||
|
||||
000001d4 <xvprintf>:
|
||||
1d4: fb010113 addi sp,sp,-80
|
||||
1d8: 04112623 sw ra,76(sp)
|
||||
1dc: 04812423 sw s0,72(sp)
|
||||
1e0: 05010413 addi s0,sp,80
|
||||
1e4: faa42e23 sw a0,-68(s0)
|
||||
1e8: fab42c23 sw a1,-72(s0)
|
||||
1ec: fbc42783 lw a5,-68(s0)
|
||||
1f0: 00178713 addi a4,a5,1
|
||||
1f4: fae42e23 sw a4,-68(s0)
|
||||
1f8: 0007c783 lbu a5,0(a5)
|
||||
1fc: fcf40ba3 sb a5,-41(s0)
|
||||
200: fd744783 lbu a5,-41(s0)
|
||||
204: 44078463 beqz a5,64c <__stack_size+0x24c>
|
||||
208: fd744703 lbu a4,-41(s0)
|
||||
20c: 02500793 li a5,37
|
||||
210: 00f70a63 beq a4,a5,224 <xvprintf+0x50>
|
||||
214: fd744783 lbu a5,-41(s0)
|
||||
218: 00078513 mv a0,a5
|
||||
21c: ee1ff0ef jal ra,fc <xputc>
|
||||
220: 4280006f j 648 <__stack_size+0x248>
|
||||
224: fc042e23 sw zero,-36(s0)
|
||||
228: fbc42783 lw a5,-68(s0)
|
||||
22c: 00178713 addi a4,a5,1
|
||||
230: fae42e23 sw a4,-68(s0)
|
||||
234: 0007c783 lbu a5,0(a5)
|
||||
238: fcf40ba3 sb a5,-41(s0)
|
||||
23c: fd744703 lbu a4,-41(s0)
|
||||
240: 03000793 li a5,48
|
||||
244: 02f71263 bne a4,a5,268 <xvprintf+0x94>
|
||||
248: 00100793 li a5,1
|
||||
24c: fcf42e23 sw a5,-36(s0)
|
||||
250: fbc42783 lw a5,-68(s0)
|
||||
254: 00178713 addi a4,a5,1
|
||||
258: fae42e23 sw a4,-68(s0)
|
||||
25c: 0007c783 lbu a5,0(a5)
|
||||
260: fcf40ba3 sb a5,-41(s0)
|
||||
264: 02c0006f j 290 <xvprintf+0xbc>
|
||||
268: fd744703 lbu a4,-41(s0)
|
||||
26c: 02d00793 li a5,45
|
||||
270: 02f71063 bne a4,a5,290 <xvprintf+0xbc>
|
||||
274: 00200793 li a5,2
|
||||
278: fcf42e23 sw a5,-36(s0)
|
||||
27c: fbc42783 lw a5,-68(s0)
|
||||
280: 00178713 addi a4,a5,1
|
||||
284: fae42e23 sw a4,-68(s0)
|
||||
288: 0007c783 lbu a5,0(a5)
|
||||
28c: fcf40ba3 sb a5,-41(s0)
|
||||
290: fe042023 sw zero,-32(s0)
|
||||
294: 0400006f j 2d4 <xvprintf+0x100>
|
||||
298: fe042703 lw a4,-32(s0)
|
||||
29c: 00070793 mv a5,a4
|
||||
2a0: 00279793 slli a5,a5,0x2
|
||||
2a4: 00e787b3 add a5,a5,a4
|
||||
2a8: 00179793 slli a5,a5,0x1
|
||||
2ac: 00078713 mv a4,a5
|
||||
2b0: fd744783 lbu a5,-41(s0)
|
||||
2b4: 00f707b3 add a5,a4,a5
|
||||
2b8: fd078793 addi a5,a5,-48
|
||||
2bc: fef42023 sw a5,-32(s0)
|
||||
2c0: fbc42783 lw a5,-68(s0)
|
||||
2c4: 00178713 addi a4,a5,1
|
||||
2c8: fae42e23 sw a4,-68(s0)
|
||||
2cc: 0007c783 lbu a5,0(a5)
|
||||
2d0: fcf40ba3 sb a5,-41(s0)
|
||||
2d4: fd744703 lbu a4,-41(s0)
|
||||
2d8: 02f00793 li a5,47
|
||||
2dc: 00e7f863 bgeu a5,a4,2ec <xvprintf+0x118>
|
||||
2e0: fd744703 lbu a4,-41(s0)
|
||||
2e4: 03900793 li a5,57
|
||||
2e8: fae7f8e3 bgeu a5,a4,298 <xvprintf+0xc4>
|
||||
2ec: fd744703 lbu a4,-41(s0)
|
||||
2f0: 06c00793 li a5,108
|
||||
2f4: 00f70863 beq a4,a5,304 <xvprintf+0x130>
|
||||
2f8: fd744703 lbu a4,-41(s0)
|
||||
2fc: 04c00793 li a5,76
|
||||
300: 02f71263 bne a4,a5,324 <xvprintf+0x150>
|
||||
304: fdc42783 lw a5,-36(s0)
|
||||
308: 0047e793 ori a5,a5,4
|
||||
30c: fcf42e23 sw a5,-36(s0)
|
||||
310: fbc42783 lw a5,-68(s0)
|
||||
314: 00178713 addi a4,a5,1
|
||||
318: fae42e23 sw a4,-68(s0)
|
||||
31c: 0007c783 lbu a5,0(a5)
|
||||
320: fcf40ba3 sb a5,-41(s0)
|
||||
324: fd744783 lbu a5,-41(s0)
|
||||
328: 32078663 beqz a5,654 <__stack_size+0x254>
|
||||
32c: fd744783 lbu a5,-41(s0)
|
||||
330: fcf40b23 sb a5,-42(s0)
|
||||
334: fd644703 lbu a4,-42(s0)
|
||||
338: 06000793 li a5,96
|
||||
33c: 00e7f863 bgeu a5,a4,34c <xvprintf+0x178>
|
||||
340: fd644783 lbu a5,-42(s0)
|
||||
344: fe078793 addi a5,a5,-32
|
||||
348: fcf40b23 sb a5,-42(s0)
|
||||
34c: fd644783 lbu a5,-42(s0)
|
||||
350: fbe78793 addi a5,a5,-66
|
||||
354: 01600713 li a4,22
|
||||
358: 10f76663 bltu a4,a5,464 <__stack_size+0x64>
|
||||
35c: 00279713 slli a4,a5,0x2
|
||||
360: 10000797 auipc a5,0x10000
|
||||
364: cb078793 addi a5,a5,-848 # 10000010 <_data+0x10>
|
||||
368: 00f707b3 add a5,a4,a5
|
||||
36c: 0007a703 lw a4,0(a5)
|
||||
370: 10000797 auipc a5,0x10000
|
||||
374: ca078793 addi a5,a5,-864 # 10000010 <_data+0x10>
|
||||
378: 00f707b3 add a5,a4,a5
|
||||
37c: 00078067 jr a5
|
||||
380: fb842783 lw a5,-72(s0)
|
||||
384: 00478713 addi a4,a5,4
|
||||
388: fae42c23 sw a4,-72(s0)
|
||||
38c: 0007a783 lw a5,0(a5)
|
||||
390: fcf42823 sw a5,-48(s0)
|
||||
394: fe042223 sw zero,-28(s0)
|
||||
398: 0100006f j 3a8 <xvprintf+0x1d4>
|
||||
39c: fe442783 lw a5,-28(s0)
|
||||
3a0: 00178793 addi a5,a5,1
|
||||
3a4: fef42223 sw a5,-28(s0)
|
||||
3a8: fd042703 lw a4,-48(s0)
|
||||
3ac: fe442783 lw a5,-28(s0)
|
||||
3b0: 00f707b3 add a5,a4,a5
|
||||
3b4: 0007c783 lbu a5,0(a5)
|
||||
3b8: fe0792e3 bnez a5,39c <xvprintf+0x1c8>
|
||||
3bc: 00c0006f j 3c8 <xvprintf+0x1f4>
|
||||
3c0: 02000513 li a0,32
|
||||
3c4: d39ff0ef jal ra,fc <xputc>
|
||||
3c8: fdc42783 lw a5,-36(s0)
|
||||
3cc: 0027f793 andi a5,a5,2
|
||||
3d0: 00079c63 bnez a5,3e8 <xvprintf+0x214>
|
||||
3d4: fe442783 lw a5,-28(s0)
|
||||
3d8: 00178713 addi a4,a5,1
|
||||
3dc: fee42223 sw a4,-28(s0)
|
||||
3e0: fe042703 lw a4,-32(s0)
|
||||
3e4: fce7eee3 bltu a5,a4,3c0 <xvprintf+0x1ec>
|
||||
3e8: fd042503 lw a0,-48(s0)
|
||||
3ec: d99ff0ef jal ra,184 <xputs>
|
||||
3f0: 00c0006f j 3fc <xvprintf+0x228>
|
||||
3f4: 02000513 li a0,32
|
||||
3f8: d05ff0ef jal ra,fc <xputc>
|
||||
3fc: fe442783 lw a5,-28(s0)
|
||||
400: 00178713 addi a4,a5,1
|
||||
404: fee42223 sw a4,-28(s0)
|
||||
408: fe042703 lw a4,-32(s0)
|
||||
40c: fee7e4e3 bltu a5,a4,3f4 <xvprintf+0x220>
|
||||
410: 2380006f j 648 <__stack_size+0x248>
|
||||
414: fb842783 lw a5,-72(s0)
|
||||
418: 00478713 addi a4,a5,4
|
||||
41c: fae42c23 sw a4,-72(s0)
|
||||
420: 0007a783 lw a5,0(a5)
|
||||
424: 0ff7f793 andi a5,a5,255
|
||||
428: 00078513 mv a0,a5
|
||||
42c: cd1ff0ef jal ra,fc <xputc>
|
||||
430: 2180006f j 648 <__stack_size+0x248>
|
||||
434: 00200793 li a5,2
|
||||
438: fef42623 sw a5,-20(s0)
|
||||
43c: 0380006f j 474 <__stack_size+0x74>
|
||||
440: 00800793 li a5,8
|
||||
444: fef42623 sw a5,-20(s0)
|
||||
448: 02c0006f j 474 <__stack_size+0x74>
|
||||
44c: 00a00793 li a5,10
|
||||
450: fef42623 sw a5,-20(s0)
|
||||
454: 0200006f j 474 <__stack_size+0x74>
|
||||
458: 01000793 li a5,16
|
||||
45c: fef42623 sw a5,-20(s0)
|
||||
460: 0140006f j 474 <__stack_size+0x74>
|
||||
464: fd744783 lbu a5,-41(s0)
|
||||
468: 00078513 mv a0,a5
|
||||
46c: c91ff0ef jal ra,fc <xputc>
|
||||
470: 1d80006f j 648 <__stack_size+0x248>
|
||||
474: fdc42783 lw a5,-36(s0)
|
||||
478: 0047f793 andi a5,a5,4
|
||||
47c: 00078c63 beqz a5,494 <__stack_size+0x94>
|
||||
480: fb842783 lw a5,-72(s0)
|
||||
484: 00478713 addi a4,a5,4
|
||||
488: fae42c23 sw a4,-72(s0)
|
||||
48c: 0007a783 lw a5,0(a5)
|
||||
490: 0340006f j 4c4 <__stack_size+0xc4>
|
||||
494: fd644703 lbu a4,-42(s0)
|
||||
498: 04400793 li a5,68
|
||||
49c: 00f71c63 bne a4,a5,4b4 <__stack_size+0xb4>
|
||||
4a0: fb842783 lw a5,-72(s0)
|
||||
4a4: 00478713 addi a4,a5,4
|
||||
4a8: fae42c23 sw a4,-72(s0)
|
||||
4ac: 0007a783 lw a5,0(a5)
|
||||
4b0: 0140006f j 4c4 <__stack_size+0xc4>
|
||||
4b4: fb842783 lw a5,-72(s0)
|
||||
4b8: 00478713 addi a4,a5,4
|
||||
4bc: fae42c23 sw a4,-72(s0)
|
||||
4c0: 0007a783 lw a5,0(a5)
|
||||
4c4: fcf42c23 sw a5,-40(s0)
|
||||
4c8: fd644703 lbu a4,-42(s0)
|
||||
4cc: 04400793 li a5,68
|
||||
4d0: 02f71263 bne a4,a5,4f4 <__stack_size+0xf4>
|
||||
4d4: fd842783 lw a5,-40(s0)
|
||||
4d8: 0007de63 bgez a5,4f4 <__stack_size+0xf4>
|
||||
4dc: fd842783 lw a5,-40(s0)
|
||||
4e0: 40f007b3 neg a5,a5
|
||||
4e4: fcf42c23 sw a5,-40(s0)
|
||||
4e8: fdc42783 lw a5,-36(s0)
|
||||
4ec: 0087e793 ori a5,a5,8
|
||||
4f0: fcf42e23 sw a5,-36(s0)
|
||||
4f4: fe042423 sw zero,-24(s0)
|
||||
4f8: fd842703 lw a4,-40(s0)
|
||||
4fc: fec42783 lw a5,-20(s0)
|
||||
500: 02f777b3 remu a5,a4,a5
|
||||
504: fcf40b23 sb a5,-42(s0)
|
||||
508: fd842703 lw a4,-40(s0)
|
||||
50c: fec42783 lw a5,-20(s0)
|
||||
510: 02f757b3 divu a5,a4,a5
|
||||
514: fcf42c23 sw a5,-40(s0)
|
||||
518: fd644703 lbu a4,-42(s0)
|
||||
51c: 00900793 li a5,9
|
||||
520: 02e7f463 bgeu a5,a4,548 <__stack_size+0x148>
|
||||
524: fd744703 lbu a4,-41(s0)
|
||||
528: 07800793 li a5,120
|
||||
52c: 00f71663 bne a4,a5,538 <__stack_size+0x138>
|
||||
530: 02700793 li a5,39
|
||||
534: 0080006f j 53c <__stack_size+0x13c>
|
||||
538: 00700793 li a5,7
|
||||
53c: fd644703 lbu a4,-42(s0)
|
||||
540: 00e787b3 add a5,a5,a4
|
||||
544: fcf40b23 sb a5,-42(s0)
|
||||
548: fe842783 lw a5,-24(s0)
|
||||
54c: 00178713 addi a4,a5,1
|
||||
550: fee42423 sw a4,-24(s0)
|
||||
554: fd644703 lbu a4,-42(s0)
|
||||
558: 03070713 addi a4,a4,48
|
||||
55c: 0ff77713 andi a4,a4,255
|
||||
560: ff040693 addi a3,s0,-16
|
||||
564: 00f687b3 add a5,a3,a5
|
||||
568: fce78823 sb a4,-48(a5)
|
||||
56c: fd842783 lw a5,-40(s0)
|
||||
570: 00078863 beqz a5,580 <__stack_size+0x180>
|
||||
574: fe842703 lw a4,-24(s0)
|
||||
578: 00f00793 li a5,15
|
||||
57c: f6e7fee3 bgeu a5,a4,4f8 <__stack_size+0xf8>
|
||||
580: fdc42783 lw a5,-36(s0)
|
||||
584: 0087f793 andi a5,a5,8
|
||||
588: 02078063 beqz a5,5a8 <__stack_size+0x1a8>
|
||||
58c: fe842783 lw a5,-24(s0)
|
||||
590: 00178713 addi a4,a5,1
|
||||
594: fee42423 sw a4,-24(s0)
|
||||
598: ff040713 addi a4,s0,-16
|
||||
59c: 00f707b3 add a5,a4,a5
|
||||
5a0: 02d00713 li a4,45
|
||||
5a4: fce78823 sb a4,-48(a5)
|
||||
5a8: fe842783 lw a5,-24(s0)
|
||||
5ac: fef42223 sw a5,-28(s0)
|
||||
5b0: fdc42783 lw a5,-36(s0)
|
||||
5b4: 0017f793 andi a5,a5,1
|
||||
5b8: 00078663 beqz a5,5c4 <__stack_size+0x1c4>
|
||||
5bc: 03000793 li a5,48
|
||||
5c0: 0080006f j 5c8 <__stack_size+0x1c8>
|
||||
5c4: 02000793 li a5,32
|
||||
5c8: fcf40b23 sb a5,-42(s0)
|
||||
5cc: 0100006f j 5dc <__stack_size+0x1dc>
|
||||
5d0: fd644783 lbu a5,-42(s0)
|
||||
5d4: 00078513 mv a0,a5
|
||||
5d8: b25ff0ef jal ra,fc <xputc>
|
||||
5dc: fdc42783 lw a5,-36(s0)
|
||||
5e0: 0027f793 andi a5,a5,2
|
||||
5e4: 00079c63 bnez a5,5fc <__stack_size+0x1fc>
|
||||
5e8: fe442783 lw a5,-28(s0)
|
||||
5ec: 00178713 addi a4,a5,1
|
||||
5f0: fee42223 sw a4,-28(s0)
|
||||
5f4: fe042703 lw a4,-32(s0)
|
||||
5f8: fce7ece3 bltu a5,a4,5d0 <__stack_size+0x1d0>
|
||||
5fc: fe842783 lw a5,-24(s0)
|
||||
600: fff78793 addi a5,a5,-1
|
||||
604: fef42423 sw a5,-24(s0)
|
||||
608: fe842783 lw a5,-24(s0)
|
||||
60c: ff040713 addi a4,s0,-16
|
||||
610: 00f707b3 add a5,a4,a5
|
||||
614: fd07c783 lbu a5,-48(a5)
|
||||
618: 00078513 mv a0,a5
|
||||
61c: ae1ff0ef jal ra,fc <xputc>
|
||||
620: fe842783 lw a5,-24(s0)
|
||||
624: fc079ce3 bnez a5,5fc <__stack_size+0x1fc>
|
||||
628: 00c0006f j 634 <__stack_size+0x234>
|
||||
62c: 02000513 li a0,32
|
||||
630: acdff0ef jal ra,fc <xputc>
|
||||
634: fe442783 lw a5,-28(s0)
|
||||
638: 00178713 addi a4,a5,1
|
||||
63c: fee42223 sw a4,-28(s0)
|
||||
640: fe042703 lw a4,-32(s0)
|
||||
644: fee7e4e3 bltu a5,a4,62c <__stack_size+0x22c>
|
||||
648: ba5ff06f j 1ec <xvprintf+0x18>
|
||||
64c: 00000013 nop
|
||||
650: 0080006f j 658 <__stack_size+0x258>
|
||||
654: 00000013 nop
|
||||
658: 00000013 nop
|
||||
65c: 04c12083 lw ra,76(sp)
|
||||
660: 04812403 lw s0,72(sp)
|
||||
664: 05010113 addi sp,sp,80
|
||||
668: 00008067 ret
|
||||
|
||||
0000066c <xprintf>:
|
||||
66c: fb010113 addi sp,sp,-80
|
||||
670: 02112623 sw ra,44(sp)
|
||||
674: 02812423 sw s0,40(sp)
|
||||
678: 03010413 addi s0,sp,48
|
||||
67c: fca42e23 sw a0,-36(s0)
|
||||
680: 00b42223 sw a1,4(s0)
|
||||
684: 00c42423 sw a2,8(s0)
|
||||
688: 00d42623 sw a3,12(s0)
|
||||
68c: 00e42823 sw a4,16(s0)
|
||||
690: 00f42a23 sw a5,20(s0)
|
||||
694: 01042c23 sw a6,24(s0)
|
||||
698: 01142e23 sw a7,28(s0)
|
||||
69c: 02040793 addi a5,s0,32
|
||||
6a0: fe478793 addi a5,a5,-28
|
||||
6a4: fef42623 sw a5,-20(s0)
|
||||
6a8: fec42783 lw a5,-20(s0)
|
||||
6ac: 00078593 mv a1,a5
|
||||
6b0: fdc42503 lw a0,-36(s0)
|
||||
6b4: b21ff0ef jal ra,1d4 <xvprintf>
|
||||
6b8: 00000013 nop
|
||||
6bc: 02c12083 lw ra,44(sp)
|
||||
6c0: 02812403 lw s0,40(sp)
|
||||
6c4: 05010113 addi sp,sp,80
|
||||
6c8: 00008067 ret
|
||||
|
||||
Disassembly of section .data:
|
||||
|
||||
10000000 <__global_pointer$-0x870>:
|
||||
10000000: 6425 lui s0,0x9
|
||||
10000002: 6820 flw fs0,80(s0)
|
||||
10000004: 6c65 lui s8,0x19
|
||||
10000006: 6f6c flw fa1,92(a4)
|
||||
10000008: 7720 flw fs0,104(a4)
|
||||
1000000a: 646c726f jal tp,100c7650 <__global_pointer$+0xc6de0>
|
||||
1000000e: 000a c.slli zero,0x2
|
||||
10000010: 0424 addi s1,sp,520
|
||||
10000012: f000 fsw fs0,32(s0)
|
||||
10000014: 0404 addi s1,sp,512
|
||||
10000016: f000 fsw fs0,32(s0)
|
||||
10000018: 043c addi a5,sp,520
|
||||
1000001a: f000 fsw fs0,32(s0)
|
||||
1000001c: 0454 addi a3,sp,516
|
||||
1000001e: f000 fsw fs0,32(s0)
|
||||
10000020: 0454 addi a3,sp,516
|
||||
10000022: f000 fsw fs0,32(s0)
|
||||
10000024: 0454 addi a3,sp,516
|
||||
10000026: f000 fsw fs0,32(s0)
|
||||
10000028: 0454 addi a3,sp,516
|
||||
1000002a: f000 fsw fs0,32(s0)
|
||||
1000002c: 0454 addi a3,sp,516
|
||||
1000002e: f000 fsw fs0,32(s0)
|
||||
10000030: 0454 addi a3,sp,516
|
||||
10000032: f000 fsw fs0,32(s0)
|
||||
10000034: 0454 addi a3,sp,516
|
||||
10000036: f000 fsw fs0,32(s0)
|
||||
10000038: 0454 addi a3,sp,516
|
||||
1000003a: f000 fsw fs0,32(s0)
|
||||
1000003c: 0454 addi a3,sp,516
|
||||
1000003e: f000 fsw fs0,32(s0)
|
||||
10000040: 0454 addi a3,sp,516
|
||||
10000042: f000 fsw fs0,32(s0)
|
||||
10000044: 0430 addi a2,sp,520
|
||||
10000046: f000 fsw fs0,32(s0)
|
||||
10000048: 0454 addi a3,sp,516
|
||||
1000004a: f000 fsw fs0,32(s0)
|
||||
1000004c: 0454 addi a3,sp,516
|
||||
1000004e: f000 fsw fs0,32(s0)
|
||||
10000050: 0454 addi a3,sp,516
|
||||
10000052: f000 fsw fs0,32(s0)
|
||||
10000054: 0370 addi a2,sp,396
|
||||
10000056: f000 fsw fs0,32(s0)
|
||||
10000058: 0454 addi a3,sp,516
|
||||
1000005a: f000 fsw fs0,32(s0)
|
||||
1000005c: 043c addi a5,sp,520
|
||||
1000005e: f000 fsw fs0,32(s0)
|
||||
10000060: 0454 addi a3,sp,516
|
||||
10000062: f000 fsw fs0,32(s0)
|
||||
10000064: 0454 addi a3,sp,516
|
||||
10000066: f000 fsw fs0,32(s0)
|
||||
10000068: 0448 addi a0,sp,516
|
||||
1000006a: f000 fsw fs0,32(s0)
|
||||
1000006c: 0000 unimp
|
||||
...
|
||||
|
||||
Disassembly of section .bss:
|
||||
|
||||
10000070 <__bss_start>:
|
||||
10000070: 0000 unimp
|
||||
...
|
||||
|
||||
10000074 <xfunc_out>:
|
||||
10000074: 0000 unimp
|
||||
...
|
||||
|
||||
Disassembly of section .stack:
|
||||
|
||||
10000400 <_sp-0x400>:
|
||||
...
|
||||
|
||||
Disassembly of section .comment:
|
||||
|
||||
00000000 <.comment>:
|
||||
0: 3a434347 fmsub.d ft6,ft6,ft4,ft7,rmm
|
||||
4: 2820 fld fs0,80(s0)
|
||||
6: 20554e47 fmsub.s ft8,fa0,ft5,ft4,rmm
|
||||
a: 434d li t1,19
|
||||
c: 2055 jal b0 <uart_putc+0x44>
|
||||
e: 6345 lui t1,0x11
|
||||
10: 696c flw fa1,84(a0)
|
||||
12: 7370 flw fa2,100(a4)
|
||||
14: 2065 jal bc <main+0x4>
|
||||
16: 4952 lw s2,20(sp)
|
||||
18: 562d4353 0x562d4353
|
||||
1c: 4520 lw s0,72(a0)
|
||||
1e: 626d lui tp,0x1b
|
||||
20: 6465 lui s0,0x19
|
||||
22: 6564 flw fs1,76(a0)
|
||||
24: 2064 fld fs1,192(s0)
|
||||
26: 2c434347 0x2c434347
|
||||
2a: 3620 fld fs0,104(a2)
|
||||
2c: 2d34 fld fa3,88(a0)
|
||||
2e: 6962 flw fs2,24(sp)
|
||||
30: 2974 fld fa3,208(a0)
|
||||
32: 3820 fld fs0,112(s0)
|
||||
34: 322e fld ft4,232(sp)
|
||||
36: 302e fld ft0,232(sp)
|
||||
...
|
||||
|
|
@ -0,0 +1,157 @@
|
|||
/*------------------------------------------------------------------------/
|
||||
/ Universal string handler for user console interface
|
||||
/-------------------------------------------------------------------------/
|
||||
/
|
||||
/ Copyright (C) 2011, ChaN, all right reserved.
|
||||
/
|
||||
/ * This software is a free software and there is NO WARRANTY.
|
||||
/ * No restriction on use. You can use, modify and redistribute it for
|
||||
/ personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
|
||||
/ * Redistributions of source code must retain the above copyright notice.
|
||||
/
|
||||
/-------------------------------------------------------------------------*/
|
||||
|
||||
#include "xprintf.h"
|
||||
|
||||
#include <stdarg.h>
|
||||
|
||||
|
||||
void (*xfunc_out)(unsigned char); /* Pointer to the output stream */
|
||||
static char *outptr;
|
||||
|
||||
/*----------------------------------------------*/
|
||||
/* Put a character */
|
||||
/*----------------------------------------------*/
|
||||
|
||||
void xputc (char c)
|
||||
{
|
||||
if (_CR_CRLF && c == '\n') xputc('\r'); /* CR -> CRLF */
|
||||
|
||||
if (outptr) {
|
||||
*outptr++ = (unsigned char)c;
|
||||
return;
|
||||
}
|
||||
|
||||
if (xfunc_out) xfunc_out((unsigned char)c);
|
||||
}
|
||||
|
||||
|
||||
/*----------------------------------------------*/
|
||||
/* Put a null-terminated string */
|
||||
/*----------------------------------------------*/
|
||||
|
||||
void xputs ( /* Put a string to the default device */
|
||||
const char* str /* Pointer to the string */
|
||||
)
|
||||
{
|
||||
while (*str)
|
||||
xputc(*str++);
|
||||
}
|
||||
|
||||
|
||||
/*----------------------------------------------*/
|
||||
/* Formatted string output */
|
||||
/*----------------------------------------------*/
|
||||
/* xprintf("%d", 1234); "1234"
|
||||
xprintf("%6d,%3d%%", -200, 5); " -200, 5%"
|
||||
xprintf("%-6u", 100); "100 "
|
||||
xprintf("%ld", 12345678L); "12345678"
|
||||
xprintf("%04x", 0xA3); "00a3"
|
||||
xprintf("%08LX", 0x123ABC); "00123ABC"
|
||||
xprintf("%016b", 0x550F); "0101010100001111"
|
||||
xprintf("%s", "String"); "String"
|
||||
xprintf("%-4s", "abc"); "abc "
|
||||
xprintf("%4s", "abc"); " abc"
|
||||
xprintf("%c", 'a'); "a"
|
||||
xprintf("%f", 10.0); <xprintf lacks floating point support>
|
||||
*/
|
||||
|
||||
static
|
||||
void xvprintf (
|
||||
const char* fmt, /* Pointer to the format string */
|
||||
va_list arp /* Pointer to arguments */
|
||||
)
|
||||
{
|
||||
unsigned int r, i, j, w, f;
|
||||
unsigned long v;
|
||||
char s[16], c, d, *p;
|
||||
|
||||
|
||||
for (;;) {
|
||||
c = *fmt++; /* Get a char */
|
||||
if (!c) break; /* End of format? */
|
||||
if (c != '%') { /* Pass through it if not a % sequense */
|
||||
xputc(c); continue;
|
||||
}
|
||||
f = 0;
|
||||
c = *fmt++; /* Get first char of the sequense */
|
||||
if (c == '0') { /* Flag: '0' padded */
|
||||
f = 1; c = *fmt++;
|
||||
} else {
|
||||
if (c == '-') { /* Flag: left justified */
|
||||
f = 2; c = *fmt++;
|
||||
}
|
||||
}
|
||||
for (w = 0; c >= '0' && c <= '9'; c = *fmt++) /* Minimum width */
|
||||
w = w * 10 + c - '0';
|
||||
if (c == 'l' || c == 'L') { /* Prefix: Size is long int */
|
||||
f |= 4; c = *fmt++;
|
||||
}
|
||||
if (!c) break; /* End of format? */
|
||||
d = c;
|
||||
if (d >= 'a') d -= 0x20;
|
||||
switch (d) { /* Type is... */
|
||||
case 'S' : /* String */
|
||||
p = va_arg(arp, char*);
|
||||
for (j = 0; p[j]; j++) ;
|
||||
while (!(f & 2) && j++ < w) xputc(' ');
|
||||
xputs(p);
|
||||
while (j++ < w) xputc(' ');
|
||||
continue;
|
||||
case 'C' : /* Character */
|
||||
xputc((char)va_arg(arp, int)); continue;
|
||||
case 'B' : /* Binary */
|
||||
r = 2; break;
|
||||
case 'O' : /* Octal */
|
||||
r = 8; break;
|
||||
case 'D' : /* Signed decimal */
|
||||
case 'U' : /* Unsigned decimal */
|
||||
r = 10; break;
|
||||
case 'X' : /* Hexdecimal */
|
||||
r = 16; break;
|
||||
default: /* Unknown type (passthrough) */
|
||||
xputc(c); continue;
|
||||
}
|
||||
|
||||
/* Get an argument and put it in numeral */
|
||||
v = (f & 4) ? va_arg(arp, long) : ((d == 'D') ? (long)va_arg(arp, int) : (long)va_arg(arp, unsigned int));
|
||||
if (d == 'D' && (v & 0x80000000)) {
|
||||
v = 0 - v;
|
||||
f |= 8;
|
||||
}
|
||||
i = 0;
|
||||
do {
|
||||
d = (char)(v % r); v /= r;
|
||||
if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
|
||||
s[i++] = d + '0';
|
||||
} while (v && i < sizeof(s));
|
||||
if (f & 8) s[i++] = '-';
|
||||
j = i; d = (f & 1) ? '0' : ' ';
|
||||
while (!(f & 2) && j++ < w) xputc(d);
|
||||
do xputc(s[--i]); while(i);
|
||||
while (j++ < w) xputc(' ');
|
||||
}
|
||||
}
|
||||
|
||||
void xprintf ( /* Put a formatted string to the default device */
|
||||
const char* fmt, /* Pointer to the format string */
|
||||
... /* Optional arguments */
|
||||
)
|
||||
{
|
||||
va_list arp;
|
||||
|
||||
|
||||
va_start(arp, fmt);
|
||||
xvprintf(fmt, arp);
|
||||
va_end(arp);
|
||||
}
|
||||
|
|
@ -0,0 +1,19 @@
|
|||
/*------------------------------------------------------------------------*/
|
||||
/* Universal string handler for user console interface (C)ChaN, 2011 */
|
||||
/*------------------------------------------------------------------------*/
|
||||
|
||||
#ifndef _XPRINTF_H_
|
||||
#define _XPRINTF_H_
|
||||
|
||||
#define _CR_CRLF 0 /* 1: Convert \n ==> \r\n in the output char */
|
||||
|
||||
#define xdev_out(func) xfunc_out = (void(*)(unsigned char))(func)
|
||||
extern void (*xfunc_out)(unsigned char);
|
||||
void xputc (char c);
|
||||
void xputs (const char* str);
|
||||
void xprintf (const char* fmt, ...);
|
||||
#define DW_CHAR sizeof(char)
|
||||
#define DW_SHORT sizeof(short)
|
||||
#define DW_LONG sizeof(long)
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue