SuperH RISC engine C/C++ compiler package V.8.00 Release 02
Contents
1. P0700CAS8 MWR 8 0 00 8 0 01 8 0 00 8 0 01 R0C40700XSW08R 8 00 Release 01 8 0 01 P0700CAS8 SLR 8 0 00 8 0 00 8 0 01 8 0 01 8 0 01 8 00 Release 01 R0C40700XSS08R 8 0 00 8 0 01 8 0 01 8 0 00 8 0 01 8 00 Release 01 P0700CAS8 H7R R0C40700XSH08R If you have the compiler package of the Windows version download the update program from the following URL http www renesas com eng products mpumcu tool index html If you have the compiler package of the UNIX version request the update program to an authorized product distributor The contents of updates in this package are shown below Descriptions of sections 1 and 2 only apply to the Windows version 1 High performance Embedded Workshop Windows version 1 1 Improvement of Workspace window Look amp Feel The Projects tab in Workspace window can show the files as time stamp order Out of date files those updated after the previous build can be marked in the Workspace window 1 2 Enhancement for Makefile Generation HEW is now capable of generating makefile for GNUMake As well as makefile is for Hmake and Nmakes This allows use of a general purpose make tool that supports GNUMake Compiler options can be output to separate files sub command files c 2004 Renesas Technology Corp All rights reserved Page 1 of 8 7tENESAS RENESAS TECHNICAL APB TN CSX 073A EA Date Jun 07 2004 1 3 Cus2. 1 gbr user was specified 2 pragma gbr_base gbr_base1 was specified for any of the following variables An unsigned char type array A structure array that has an unsigned char type member A structure that has an unsigned char type array member A structure that has a bit field member of 8 bits or less 3 A logic operation of a constant amp with the variable of 2 b 0 in the above example was performed 4 The variable assigned to by the operation of 3 a 0 in the above example fulfilled the condition of 2 5 Variables of 3 and 4 were different variables different elements of the same array or different members of the same structure 3 5 Illegal Elimination of Sign Zero Extension We have corrected the problem of eliminating the cast when the address of a variable constant or the index of an array was cast to 1 or 2 bytes and this value was used for accessing memory or the expression which was cast to a char type was assigned to an unsigned short type variable and the result was used for comparison Example1 unsigned short x char a 1000 void f a char x 0 MOV L L11 2 R2 MOV L L11 6 R6 RE Page 6 of 8 sKENESAS RENESAS TECHNICAL APB TN CSX 073A EA Date Jun 07 2004 MOV W R2 R5 EXTU B R5 RO Eliminates EXTS B RO RO MOV 0 R5 H 00000000 RTS MOV B R5 RO R6 When x is not within the range of 0 to 127 an illegal address may be referred to Example2 u
3. A C program which only had declaration of a class that includes a static function member declaration using the function type typedef was compiled with the debug option specified 2 A C C program which includes a switch statement that is not enclosed by and had no default label was compiled with optimize 0 and the debug option specified 4 Optimizing Linkage Editor 4 1 Illegal output data for an empty area in S Type HEX format files The following problem had been fixed When an output file format is S Type or HEX 0 character ASCII code 0x30 might be incorrectly changed to NULL ASCll code 0x00 at an empty area in which no instruction or data exists Condition This problem might occur when all of the following conditions were fulfilled 1 The endian little option was specified for the compiler or assembler 3 The code or data linked to the same section are divided and exist in two or more input object files 2 The form stype or hexadecimal option was specified for the linker 4 0 was inserted in the section of 3 by boundary adjustment at the linkage process 4 2 Illegal object due to specification of unifying same codes optimization Fixed the problem that a branch to the unified subroutine might be incorrect Condition This problem might occur when all of the following conditions were fulfilled 1 Unifying same codes optimization optimize same_code was valid 2 The input file was com
4. To our customers Old Company Name in Catalogs and Other Documents On April 1 2010 NEC Electronics Corporation merged with Renesas Technology Corporation and Renesas Electronics Corporation took over all the business of both companies Therefore although the old company name remains in this document it is a valid Renesas Electronics document We appreciate your understanding Renesas Electronics website http www renesas com April 1 2010 Renesas Electronics Corporation Issued by Renesas Electronics Corporation http www renesas com Send any inquiries to http www renesas com inquiry CENESAS Date Jun 07 2004 RENESAS TECHNICAL UPD Nippon Bldg 2 6 2 Ohte machi Chiyoda ku Tokyo 100 0004 Japan RenesasTechnology Corp Product Document Category User Development Environment No TN CSX 073A EA Rev 1 0 SuperH RISC engine C C compiler package Information ee Title V 8 00 Release 02 Updates Category Specification Change Lot No SuperH RISC engine C C Compiler P0700CAS8 MWR R0C40700XSW08R Assembler Optimizing Linkage Editor A P0700CAS8 SLR ROC40700XSS08R B ie User s Manual roduct P0700CAS8 H7R ROC40700XSHO8R All ocument REJ10B0047 0100H Rev 1 00 SuperH RISC engine C C compiler package is updated in V 8 00 Release 02 See the notes below if you have the compiler package listed in the following table Part No Package version Compiler version
5. mmediately before the exit Example typedef struct int x ST extern void g ST x void f int a ST b b is a parameter passed via the stack if a Address where parameter b is stored at the function entry R15 TST R4 R4 BT L12 MOV R15 R4 MOV L L14 R2 _g JMP R2 A ADD 4 R4 R4 lt R15 4 Not the address of b L12 RTS B NOP Conditions This problem might occur when all of the following conditions were fulfilled 1 optimize 1 was specified 2 The speed option was specified 3 The function had a parameter passed via the stack b in the above example 5 There was a function call immediately before any of the exits in 4 g amp b in the above example 2 3 4 The function had multiple exits A and B in the above example 5 6 6 5 was the only function call in this function Re Page 5 of 8 sKENESAS RENESAS TECHNICAL APB TN CSX 073A EA Date Jun 07 2004 3 4 Illegal GBR Relative Logic Operation We have corrected the problem of writing the result to an incorrect area if a logic operation with a 1 byte array or a bit field member for which pragma gbr_base gbr_base1 was specified was performed Example pragma gbr_base a b char a 2 b 2 void f a 0 b 0 amp 1 MOV _b STARTOF G0 RO RTS AND B 1 RO0 GBR Writes the result of the operation to b 0 Conditions This problem might occur when all of the following conditions were fulfilled
6. n list 1 11 Auto Recovery Function This function is newly supported to backup the workspace project and session files at regular intervals 1 12 Enhanced Function to Customize the Display Format The function to customize fonts and size has been enhanced 1 13 Freeze while Editing We have corrected the problem of the HEW being halted while editing a file in the editor with the navigation facility enabled 1 14 Illegal Termination of the HEW after Adding a Custom Build Phase We have corrected the problem of the HEW illegally terminated by pressing the OK button after specifying an output file in Phase name Options for the added custom phase RE Page 2 of 8 sKENESAS RENESAS TECHNICAL APB TN CSX 073A EA Date Jun 07 2004 1 15 Duplicate Header File Name in the Workspace Window We have corrected the problem of displaying a duplicate header file name on the Project tab of the Workspace window when the header file was defined with both uppercase and lowercase letters Example File1 c include SAMPLE H File2 c include sample h 1 16 Incorrect Display of Navigation We have corrected the problem of incorrectly displaying information on the Navigation tab of the Workspace window when a space was attached to the number of elements in an array type variable declaration Example extern int tbl 2 1 17 Incorrect Dependencies for a Custom Build Phase We have corrected the problem of changing the names
7. nsigned short usO unsigned int b func1 unsigned short us1 us1 char b return usO us1 MOV L L11 R2 MOV L L11 4 R5 MOV L R2 R6 EXTS B R6 R2 MOV W R5 R6 EXTU W R6 R5 CMP EQ R2 R5 char b is not cast to an unsigned short type and is used in comparison MOVT RO RTS XOR 1 RO Conditions This problem might occur when all of the following conditions were fulfilled 1 optimize 1 was specified 2 One of the following conditions a b was satisfied a 1 The address of a variable constant or the index of an array was explicitly cast to 1 or 2 bytes 1 The expression which was cast to a char type was assigned to an unsigned short type variable 2 The value of a 1 was used for accessing memory 2 The variable of b 1 was used in comparison 3 6 Former Limitation We have corrected the following problem When addition and subtraction of a section address operator and a numeric value were described to the initial value of an external variable the portion of numerical addition and subtraction was not output in an object RE Page 7 of 8 sKENESAS RENESAS TECHNICAL APB TN CSX 073A EA Date Jun 07 2004 Example char addr1 char _sectop P 1 OK char addr2 char _sectop P __ secsize P OK char addr3 char _sectop P 10 IING 3 7 Internal Errors Corrected We have corrected the problem of generating internal errors under the following conditions 1
8. of files with dependent information on the custom build phase by adding a file to the project after the custom build phase had been added to the said project 2 SuperH RISC engine simulator debugger Windows version 2 1 Setting the memory read cycles and write cycles Both number of memory read cycles and write cycles can be modified 3 Compiler 3 1 Illegal Copy Propagation We have corrected the problem of illegally eliminating a copy instruction when the copy instruction existed in a block with multiple branch sources Example int func int x int ret 0 while x if x 1 ret 2 return ret 2 _ func MOV 0 R5 Illegally eliminates the copy instruction and converts R7 to R5 L11 MOV L R4 R2 ADD 4 R4 1 Illegally eliminates MOV R7 R5 RE Page 3 of 8 sKENESAS RENESAS TECHNICAL APB TN CSX 073A EA Date Jun 07 2004 TST R2 R2 ADD 2 R5 BT L13 MOV L R4 RO CMP EQ 1 RO BT L11 2 By 3 BF L11 is converted BRA L11 NOP 3 Illegally eliminates MOV R5 R7 L13 RTS MOV R5 RO Conditions This problem might occur when all of the following conditions were fulfilled 1 optimize 1 was specified 2 A conditional statement was described 2 3 A copy instruction existed in a block with multiple branch sources 1 in the above example 4 4 The block of the branch sources in 3 had a path with no definition of the copy source register R7 in the above example for the copy inst
9. piled with the goptimize option 3 Two or more unified subroutines were generated by optimization 4 A distance between the generated subroutines of 3 was 4096 bytes or less 4 3 Incorrect error with specification of the change_message option Fixed the problem that an incorrect error occurred when two or more error levels were specified in the change_message option Example When the change_message option was specified as follows a linker older than version 8 0 03 output an error message incorrectly optlnk change_message e 1000 w 2000 obj RE Page 8 of 8 sKENESAS
10. ruction in the example the path branching from 2 to L11 3 2 Illegal Elimination of Unnecessary Expressions We have corrected the problem of illegally eliminating a conditional statement if a then or else clause of the conditional statement had an assignment expression and another assignment expression of which the both sides had the same variable followed the said expression Example int x void f int y if y gt 256 Illegal elimination x 0 FY 2 Eliminates the assignment expression that has the same variable in both sides void f int y x 0 Propagates x 0 void f int y x 1 RE Page 4 of 8 sKENESAS RENESAS TECHNICAL APB TN CSX 073A EA Date Jun 07 2004 Conditions This problem might occur when all of the following conditions were fulfilled 1 optimize 1 was specified 2 A conditional statement was described 3 A then or else clause of the conditional statement of 2 had an assignment expression 1 in the above example 4 An assignment expression in which the both sides had the same variable as the variable assigned to in 3 followed the conditional statement of 2 2 in the above example 3 3 Illegal Access with a Parameter Passed via the Stack We have corrected the problem of an address for reference to a parameter passed via the stack being incorrect when the speed option was specified if a function with the parameter passed via the stack had a function call i
11. tomization of the HEW Linkage Order Customization of the HEW linkage order is newly supported 1 4 Virtual Desktop Function The virtual desktop function is newly supported It is possible to have a maximum of four window configurations so that users are able to use the screen effectively by switching these window configurations 1 5 Enhancement of saving view contents The contents of the view Cache SH only I O PA Register and TLB SH only can be saved into text file 1 6 Specifications of the Watch Window Changed Variables added in the Watch window will be retained even after the window is closed unless the user deletes these variables manually 1 7 Improved Tools Options Dialog Box The size of the Section dialog box opened from the Tools Options Dialog Box is now customizable 1 8 Direct Display of the Source File at the Current PC This function toolbar button allows the source file at the current PC to be displayed 1 9 Enhanced Downloading Function The following new options can be specified 1 Before downloading a load module the HEW checks if the source file has been modified If modified the HEW automatically builds the module before downloading 2 After downloading the load module the HEW automatically resets the target program 1 10 Improved Address Field An address field now has a function to refer to the list of labels The last 20 items entered in the address field can be shown in the drop dow
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