swi rc

1) Use of SWI commands Area addreg, CODE, READONLY ENTRY MAIN ADR r0, ThunbProg 1; (Why add 1? When the BX command jumps to the specified address to execute the program, if the (BX {cond} Rm) Rm bit [0] is 1, then, the flag T in CPSR is automatically set during the jump to interpret the target code as the Thunb code) BX r0 CODE16 ThunbProg Mov r2, #2 Mov r3, #3 Add r2, r2, r3 ADR r0, ARMProg BX ro CODE32 ARMProg Mov r4, #4 Mov r5, #5 Add r4, r4, r5 St

From: http://www.diybl.com/course/6_system/linux/Linuxjs/20090515/167024.html A Unix system sends a system call to the kernel to implement most interfaces between user-mode processes and hardware devices. System calls are services provided by the operating system. User Programs reference various services provided by the kernel through various system calls. The execution of system calls puts user programs into the kernel, this is completed by SWI soft

interrupt types and priority:Priority exception interrupt nameHigh reset (reset)| Data abort)| Fast interrupt request (FIQ)| External interrupt request (IRQ)// |/Prefetch abort)// SWI)Undefined instruction) Abnormal vector table:Priority of address exception interrupt name......0x1c FIQ 30x18 IRQ 40x14 Reserved x0x10 Data abort 20x0c prefetch abort 40x08 SWI 50x04 undefined instruction 60x00 reset 1Vector

The SWI module manages software interruption services. These interrupt service programs are closely related to Hwi hardware interrupt service programs. Generally, most of the daily processing functions are placed in these software interrupt service programs for management and operation. I. Overview of the SWI Module In the DSP/BIOS kernel, the threads managed and run by the system are divided into four leve

Describes how to use SWI for an interruption.Privileged mode: A protection mode in which superisor SVC is used by the OS.It is actually an interruption. For hardware users, the interruption mode is defined by the user.1. Understand the available registers of normal user statusR0 ~ R7 universal R8 ~ R12 independent registers [some mode register groups are independent] R13-SP [independent] R14-LR [independent] PC [general] CPSR [independent]R0 ~ R7 Gene

Last month saw Prolog this language, its special grammar attracted me, but after a period of study, I found that it is not as magical as the legend on the Internet, but I am still interested in it, there are predecessors said Prolog itself is not strong, But used as a supplementary language to solve some special problems or very effective, it happens that I am a C #, I looked up how to combine Prolog and C #, but I Baidu came out of the information can only be used to describe the sparse. No way

request (FIQ)| External interrupt request (IRQ)// |/Prefetch abort)// SWI)Undefined instruction) Abnormal vector table:Priority of address exception interrupt name......0x1c FIQ 30x18 IRQ 40x14 Reserved x0x10 Data abort 20x0c prefetch abort 40x08 SWI 50x04 undefined instruction 60x00 reset 1Vector table can be at 0x0 or 0xffff0000 (arm720t, arm9, arm10 ..)Why do FIQ with priority 3 be placed at address 0x1

Chapter 1 of the title page introduces 1.1 SWI-Prolog1.2 status 1.3 compliant with ISO 1.4 do you want to use SWI-Prolog? 1.5 xpce prolog1.6 Release Notes 1.7 donated SWI-Prolog project 1.8 thanks Chapter 2 Overview 2.1 Quick Start 2.2 user's initialization file 2.3 initialization file and target 2.4 command line option 2.5 GNU emacs interface 2.6 online help 2.7

The SWI exception interrupt command allows an application to call code in system mode in user mode. in the operating system, the code is called by the system, How can this process be implemented? Let's learn with questions! The SWI command contains a 24-bit immediate number (call interrupt number), which indicates the specific call function to be requested by the user, therefore, you need to read the inter

Take a look at the function call details: Example: 1 In main. c MicIrqFuncSet (timerrentint, 2, (unsigned int) IRQ_Timer1 ); The micIrqFuncSet function calls the function in viccontrol. h. 2 In viccontrol. h _ Inline unsigned int micIrqFuncSet (unsigned int uiChannel,Unsigned int uiType,Unsigned int uiFuncAddr){Return swiHandle (0x100, uiChannel, uiType, uiFuncAddr );} The inline function is used here, that is, the swiHandle function is actually called. _ Sw