RealView Compiler User's Guide
Home Products Events Support	Search Keil.com for:

Technical Support

On-Line Manuals

RealView Compiler User's Guide

Getting started with the ARM Compiler

Compiler Features

Coding Practices

Diagnostic Messages

Using the Inline and Embedded Assemblers

About semihosting

What is semihosting?

The semihosting interface

Semihosting implementation

RealView ARMulator ISS

Instruction Set System Model

Semihosting operations

angel_SWIreason_EnterSVC (0x17)

angel_SWIreason_ReportException (0x18)

SYS_CLOSE (0x02)

SYS_CLOCK (0x10)

SYS_ELAPSED (0x30)

SYS_ERRNO (0x13)

SYS_FLEN (0x0C)

SYS_GET_CMDLINE (0x15)

SYS_HEAPINFO (0x16)

SYS_ISERROR (0x08)

SYS_ISTTY (0x09)

SYS_OPEN (0x01)

SYS_READ (0x06)

SYS_READC (0x07)

SYS_REMOVE (0x0E)

SYS_RENAME (0x0F)

SYS_SEEK (0x0A)

SYS_SYSTEM (0x12)

SYS_TICKFREQ (0x31)

SYS_TIME (0x11)

SYS_TMPNAM (0x0D)

SYS_WRITE (0x05)

SYS_WRITEC (0x03)

SYS_WRITE0 (0x04)

Debug agent interaction SVCs

SYS_READC (0x07)

RealView^® Compilation Tools for μVision Compiler User Guide

Version 3.1

Home > Semihosting > Semihosting operations > SYS_READC (0x07)

A.3.14. `SYS_READC (0x07)`

Reads a byte from the console.

Entry

Register r1 must contain zero. There are no other parameters or values possible.

Return

On exit, r0 contains the byte read from the console.

Copyright © 2007 ARM Limited. All rights reserved.	ARM DUI 0375A
PDF version

Home > Semihosting > Semihosting operations > `SYS_READC (0x07)`