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| ICCH8 INTEGRATED C COMPILER HITACHI H8S AND H8/300H DEVELOPMENT TOOLS INTEGRATED ENVIRONMENT The ICCH8 toolset is delivered as a complete toolset with C compiler, assembler, linker, librarian and run-time libraries. To help reduce development times and make the tools easier to use the delivery also includes a menu driven user interface with mouse control. This user interface also includes an error-sensitive editor and make utilities. Use the IAR Integrated Environment - and get to market faster. The IAR ICCH8 develop ment kit offers the choice of C to H8S and H8/300H applications. COMPILER specific and important are s. a DATA TYPE bit sfr sfrp signed char char (default) short & int unsigned short & int signed long unsigned long float IEEE 32-bit SIZE (bytes) 1 bit 1 2 1 1 2 2 4 4 4 VALUE RANGE 0 or 1 0 to 255 0 to 65535 -128 to +127 0 to 255 -32768 to +32767 0 to 65535 -231 to 231-1 0 to 232-1 Full ANSI C compatibility The IAR H8 C Compiler is ICCH8 implements the full fully compatible with the ANSI C language, and proANSI C standard. All data vides extended keywords types required by ANSI are specific to the H8S archisupported without any extecture. With its built-in ceptions (see figure 1). chip-specific optimizer, the float are represented in the IAR H8 C Compiler gene raIEEE 32-bit precision and tes very efficient and reliable double are represented in PROMable code. the IEEE 32 or 64-bit precision. Struct, array, Combined with fully compre- union, and enum are also hensive documentation, the supported. There is also IAR ICCH8 gets you started support for 8/16/32-bit biton your H8 project in no field. time, making the learning process fast and easy. In Full ANSI C compatibility addition to a solid technomeans that the IAR C Comlogy, our professional pilers follow not only the technical support is yet ANSI syntax but also the another reason engineers less well known requireadopt IAR C. ments that ANSI puts on run-time behavior such as integral promotions and precision in floating point calculations to name two 1.18E-38 to 3.39E+38, 7 digits double, 4 1.18E-38 to long double 3.39E+38, 7 IEEE 32-bit digits double, 8 2.23E-308 to long double 1.79E+308, 16 IEEE 64-bit digits pointer 2,3 object address Figure 1. Data representation supported by the IAR H8 C Compiler. IAR C DEVELOPMENT TOOLS FOR THE HITACHI H8 H8 Specific extensions To ideally suit development for embedded systems, standard C needs additional functionality. IAR Systems has defined a set of extensions to ANSI C, specific to the H8 architecture (see Figure 2). All of these extended keywords can be invoked by using the #pragma directive, which maintains compatibility with ANSI and code portability. In Addition there is also a set of intrinsic functions that are specially designed for H8 (see Figure 2). These functions maps to assembler instructions that can be directly invoked in C code as a function call. The intrinsic functions shown in the table are only some of the available functions. Efficient floating point The compiler comes with full floating point support. It follows the IEEE 32-bit representation using an IAR Systems proprietary register based algorithm, which makes floating point manipulation extremely fast. DESCRIPTION Creates an interrupt function that is called through an interrupt vector. The function preserves the register contents and the processor status. monitor Turns off the interrupts while executing a monitor function. tiny_func Called indirectly via an exception vector. near_func Access range from 0H to FFFF. far_func Unrestricted access to 16MB range. Variable no_init Puts a variable in the no_init segment. Does not get intialized at start-up. bit Declares a bit variable. sfr Maps a byte value to an absolute address. sfrp Maps a word value to an absolute address. tiny Data object stored in the tiny segment. Access using 8-bit addressing. near Data object stored in the near segment. Access using 16-bit addressing. far Data object stored in the far segment. Access using 32-bit addressing. Object size huge <64KB. Data object stored in the huge segment. No restrictions on size. Intrinsic _args$ Returns an array of the parameters to a function. _argt$ Returns the type of the parameter. and_ccr, and_exr ANDs to the CCR or EXR register. dadd, dsub Decimal addition or subtraction. disable_max_time Sets maximum interrupt disable time. do_byte_eepmov Copies a sequence of bytes. func_stack_base Returns the function stack base address. mac Multiply and accumulate. macl Multiply and accumulate logical. no_operation Executes the NOP instruction. or_ccr, or_exr ORs to the CCR or EXR register. read_ccr, read_exr Reads the CCR or EXR register. rotlc, rotlw, rotll Rotate 1-byte, 2-byte, or 4-byte data to the left. rotrc, rotrw, rotrl Rotate 1-byte, 2-byte, or 4-byte data to the right. set_interrupt_mask Sets the interrupt priority level. sleep Executes the SLEEP instruction. tas Executes the TAS instruction. trapa Executes the TRAPA instruction. write_ccr, write_exr Writes to the CCR or EXR register. xor_ccr, xor_exr Exclusive-ORs to the CCR or EXR register. Figure 2. IAR Systems embedded C extensions. TYPE Function KEYWORD interrupt IAR C DEVELOPMENT TOOLS FOR THE HITACHI H8 Processor mode Memory model Code Area Data Area Default func call Default Data Pointer Normal Small (-ms) <64KB <64KB near_func Near Advanced Large (-ml) <16MB <4GB far_func Far tiny, near, far and huge extended keywords could be used to override defaults Figure 3. Memory models. The two different memory models allow a best fit selection. Memory models for any hardware design Every design has its own memory requirements. The ICCH8 compiler has two different memory models to allow a best fit selection (see Figure 3). listing with segments, symbol information, variable locations, and function addresses are easily generated. Examples of linker commands -Z seg_def Description ASSEMBLER Macro-Assembler for time-critical routines The IAR C Compiler kit comes with a relocatable structured assembler. This provides the option of coding time-critical sections of the application in assembly without losing the advantages of the C language. The preprocessor of the C compiler is incorporated in the assembler, thus allowing use of the full ANSI C macro language, with conditional assembly, macro definitions, if statements, etc. C include files can also be used in an assembly program. All modules written in assembly can easily be accessed from C and vice versa, making the interface between C and assembly a straight forward process. Powerful Set of Assembler Directives The assembler provides an extensive set of directives to allow total control of code and data segmentation. Directives also allow creation of multiple modules within a file, macro definitions and variable declarations. Allocates a list of segments at a specific address. -F format_name Selects one of more than 30 different absolute output formats. -x -l file_name Generate a map file containing the absolute addresses of modules, segments, entry points, global/static variable, and functions. -D symbol=value Define a global symbol and equates it to a certain value. Figure 4. Example of different linker commands . LIBRARIAN The XLIB Librarian creates and maintains libraries and library modules. Listings of modules, entry points, and symbolic information contained in every library are easily generated. XLIB can also change the attributes in a file or library to be either conditionally or unconditionally loaded, i.e. loaded only if referred to or loaded without being referred to. LINKER The IAR XLINK Linker supports complete linking, relocation and format generation to produce H8 PROMable code (see Figure 4). The XLINK generates over 30 different output formats and is compatible with most popular emulators and EPROM burners. The XLINK is extremely versatile in allocating any code or data to a start address, and checking for overflow. Detailed cross reference and map IAR C DEVELOPMENT TOOLS FOR THE HITACHI H8 ANSI C LIBRARIES The IAR C Compiler kit comes with all libraries required by ANSI free standing implementation of C. Additionally, ICCH8 comes with low-level routines required for embedded systems development (see Figure 5). C LIBRARY FUNCTIONS DIAGNOSTICS UTILITIES & EXTRAS User interface, editor and Make utility installation is easy and straight forward due to the installation program which will check for other IAR installations. ICCH8 comes with a mousecontrolled menu-driven user interface that includes an error-sensitive ASCII editor. An easy-touse Make utility is also integrated in the interface environment. SUPPORT & UPDATES IAR H8 toolkit comes with the following benefits: * Updates released within 90 days after purchase free of charge. * On-line free technical support. HOSTS * IBM PC and compatibles. Minimum 386, DOS 4.x, and 4 MB of RAM. * Windows 3.1x, 95 and NT 3.51 or later in a DOS window. * SUN 4 (SPARC): SUN-OS, Solaris. * HP 9000/700: HP-UX. IAR C DEVELOPMENT TOOLS FOR THE HITACHI H8 C-SPY H8 SIMULATOR/DEBUGGER FOR HITACHI H8S AND H8/300H The IAR H8 C-SPY is a high level language simulator/ debugger. C-SPY combines the detailed control of execution needed for embedded development debugging with the flexibility and power of the C language. USER INTERFACE Short learning curve C-SPY is a window-oriented simulator/debugger which provides a friendly and easy-to-navigate debugging environment. No set-up problems C-SPY does not need to be set-up to offer powerful debug features. All functionality is present from start-up. The C-SPY screen could be reduced to only two windows (Source and Command) for simplicity or be divided into the following user-selectable windows: C/ASM source code. Displays source code on C or assembly levels, and highlights the line being executed. Allows placement of breakpoints directly on the C or ASM source line. Registers. Displays register contents and the cycle count. Memory. Simulates memory space of the cpu. Displays the content of a user selectable address range, ROM, RAM or stack. Watchpoint. Displays the content of variables and expressions. Globals, locals, structures, arrays, and pointers are all supported. Terminal I/O. A unique C-SPY feature where the screen becomes the output and the keyboard becomes the input. A very useful feature for debugging embedded applications when logical flow is of interest or the target is not yet ready. A Powerful Command Set A powerful yet easy to use command set; includes all that is needed for embedded debugging environments. Frequently used commands are invoked via function keys. Built-in Assembler & Disassembler In addition to modifying variables and symbol values, C-SPY H8 also provides the flexibility of modifying the code during a debugging session. This feature is often needed while debugging embedded applications. CONTACT INFORMATION USA IAR Systems Inc. One Maritime Plaza San Francisco, CA 94111 Tel: +1 415-765-5500 Fax: +1 415-765-5503 Email: info@iar.com SWEDEN IAR Systems AB P.O. Box 23051 S-750 23 Uppsala Tel: +46 18 16 78 00 Fax: +46 18 16 78 38 Email: info@iar.se GERMANY IAR Systems GmbH Brucknerstrasse 27 D-81677 Munich Tel: +49 89 470 6022 Fax: +49 89 470 9565 Email: info@iar.de UK IAR Systems Ltd. 9 Spice Court, Ivory Square London SW11 3UE Tel: +44 171 924 3334 Fax: +44 171 924 5341 Email: info@iarsys.co.uk Home Page: http://www.iar.se IAR is a registered trademark of IAR Systems, Embedded Workbench, XLINK, XLIB, and C-SPY are trademarks of IAR Systems. All other products are trademarks or registered trademarks of their respective owners. Product features, availability, pricing and other terms and conditions are subject to change by IAR Systems from time to time without further notice. Copyright(c)1996 IAR Systems AB (c) |
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