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NoMaY-jp’s reputation

NoMaY-jp 201 Rep.

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NoMaY-jp's reputation

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+2

June 18, 2021 Asked LLVM-RL78 clang ld.lld’s incorrect relocation address problem

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June 8, 2021 Asked Question about generated code by LLVM-RL78 (code – 2021/06/09)

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June 7, 2021 Asked A small tip to try LLVM-RL78’s “-frenesas-extensions” option with RL78 Smart Configurator’s LLVM-RL78 mode

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June 7, 2021 Commented Dear Dumitru-san, Thank you very much for the information. I understand that the LLVM-RL78's code with newlib nano will be 10% smaller than GNURL78's code. LLVM-RL78: (using newlib nano for next release) llvm-size -format=berkeley “RTOSDemo.elf” text data bss dec hex filename 45272 312 23246 68830 10cde RTOSDemo.elf GNURL78: (using already released newlib nano) rl78-elf-size -format=berkeley “RTOSDemo.elf” text data bss dec hex filename 50292 330 23246 73868 1208c RTOSDemo.elf Best regards, NoMaY

+1

May 28, 2021 Commented Dear Dumitru-san, Please do the following steps. (Sorry for several steps due to using submodule by upstream FreeRTOS repository.) (1) Clone my repository - a fork of FreeRTOS (FreeRTOS Demo) https://github.com/NoMaY-jp/FreeRTOS (2) Clone my repository - a fork of FreeRTOS Kernel https://github.com/NoMaY-jp/FreeRTOS-Kernel (3) Remove the following files and folders in (1) FreeRTOS/FreeRTOS/Source/*.* other than .git and .github/ (4) Copy the following files and folders in (2) to the following folder in (1) (or create symbolic links using Windows' MKLINK command) FROM: files and folders FreeRTOS-Kernel/FreeRTOS-Kernel/*.* other than .git/ and .github/ TO: folder FreeRTOS/FreeRTOS/Source/ (5) Import project (both projects have the same project name, so only one project can be imported at the same time) LLVM-RL78: FreeRTOS/FreeRTOS/Demo/RL78_RL78G14_FPB_LLVM_e2studio GNURL78: FreeRTOS/FreeRTOS/Demo/RL78_RL78G14_FPB_GCC_e2studio Best regards, NoMaY

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May 28, 2021 Commented Dear Dumitru-san, Thank you for the proposal. Can you clone repository from the GitHub (by Git, GitHubDesktop, or something else)? If so, I will inform the url of my repositories. If not, I will prepare a zip file containig source files and project files. Best regards, NoMaY

+2

May 27, 2021 Asked LLVM-RL78 clang assembler shows stack dump when wrong assembly code is written

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May 27, 2021 Commented Hello support team, Thank you for the reply. My opinion is: (1) iodefine.h should be fixed to use 8bit register name instead of 16bit register name. (Of course not only RL78/G23 and RL78/G14 but also other devices.) (2) LLVM-RL78 should be fixed to generate bit operation instruction with above updated iodefine.h. REASON: In case of RL78 architecture, bit operation instruction has to be used to operate each IF bit flags. Even if the following operation is used, other IF bit flags of the same byte may be cleared unexpectedly and such unexpected clear of other IF bit flags means the unexpected lost of interrupt request. PUSH PSW DI read the IF register to A register clear (or set) the bit of A register write A register to the IF register POP PSW RL78 is RL78, RL78 is neither RX nor Cortex. Best regards, NoMaY

+10

May 21, 2021 Answered LLVM support for Code Generator or Smart Configurator for RL78/G14

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May 20, 2021 Commented Hello Dumitru-san, Thank you very much for your quick reply. Now the program can be built and works well. But unfortunately LLVM-RL78 generates bigger program than GNURL78. In Renesas' Japanese forum, there is an opinion that such biggerness might be caused by the lack of newlib nano. LLVM-RL78: llvm-size --format=berkeley "RTOSDemo.elf" text data bss dec hex filename 76648 1652 23274 101574 18cc6 RTOSDemo.elf GNURL78: rl78-elf-size --format=berkeley "RTOSDemo.elf" text data bss dec hex filename 50292 330 23246 73868 1208c RTOSDemo.elf Best regards, NoMaY

+2

May 20, 2021 Asked How to solve ld.lld error ‘relocation R_RL78_DIR16U_RAM out of RAM range’

+10

May 20, 2021 Answered LLVM support for Code Generator or Smart Configurator for RL78/G14

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May 19, 2021 Commented Hello support team, According to the C language specification, I think that generate code by GNURL78 is incorrect because the iodefine.h defines that the bit is a bit of a 16bit register with 'volatile' keyword. In this case, 'volatile' requests that the register has to be accessed as a 16bit register. Best regards, NoMaY

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May 19, 2021 Commented Hello support team, I notice one new thing. PIF0 is defined as follows. This bit should be operated by bit operation instruction. Nevertheless somehow this bit is defined as a bit of 16bit register. This definition is the same as RL78/G14. I worry this may be the root cause of bad generated code. (But GNURL78 generate a good code.) src/smc_gen/r_bsp/mcu/rl78_g23/register_access/llvm/iodefine.h #define PIF0 IF0_bit.no2 #define IF0_bit (*(volatile union un_if0 *)0xFFFE0).BIT union un_if0 { unsigned short if0; __BITS16 BIT; }; typedef struct { unsigned short no0 :1; unsigned short no1 :1; unsigned short no2 :1; unsigned short no3 :1; unsigned short no4 :1; unsigned short no5 :1; unsigned short no6 :1; unsigned short no7 :1; unsigned short no8 :1; unsigned short no9 :1; unsigned short no10 :1; unsigned short no11 :1; unsigned short no12 :1; unsigned short no13 :1; unsigned short no14 :1; unsigned short no15 :1; } __BITS16; Best regards, NoMaY

+2

May 18, 2021 Asked Question about generated code by LLVM-RL78 (code – 2021/05/18)

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May 18, 2021 Commented Hello support team, Thank you for your replies in other threads. Is there any information in this thread? Best regards, NoMaY

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May 13, 2021 Asked Question about generated code by LLVM-RL78 (code – 2021/05/13)

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May 13, 2021 Asked Does LLVM-RL78 need the dedicated version of FDL library?

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May 13, 2021 Asked Is it possible to use newlib nano in case of LLVM-RL78?

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May 7, 2021 Asked How to specify the medium memory model of CC-RL in case of LLVM-RL78?

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