[問題] Keil C 的 .m51 ,code memery ***GAP***

[ast9869 (甘願為妳~)]

為什麼會產生GAP啊？這樣很浪費空間說？能不能讓他無GAP??

//===================
// *.M51 部分內容
//===================

C:\KEIL\C51\BIN\BL51.EXE .\Obj\F34x_USB_Descriptors.obj,
.\Obj\F34x_USB_ISR.obj, .\Obj\F34x_USB_Main.obj, .\Obj\F34x_USB
>> _Standard_Requests.obj, .\Obj\F34x_USB_Utilities.obj, .\Obj\STARTUP.obj,
.\Obj\ICE.obj, .\Obj\ICE_SNL200_Parallel.obj
>> , .\Obj\ICE_SNL200_Spi.obj TO .\Obj\ICE_8051 PRINT (.\LST\ICE_8051.m51)
NOLINES, NOSYMBOLS RAMSIZE (256) CODE (?PR?*?
>> ICE (0X2000), ?PR?*?ICE_SNL200_PARALLEL, ?PR?*?ICE_SNL200_SPI, ?CO?ICE,
?CO?ICE_SNL200_PARALLEL, ?CO?ICE_SNL200_SPI)

TYPE    BASE  LENGTH  RELOCATION      SEGMENT NAME
CODE    226DH  00E7H  INBLOCK   ?PR?INITMODULE_SNL200_
CODE    2354H  0007H  INBLOCK   ?PR?_WR_PARALLEL?ICE_S
CODE    235BH  0010H  INBLOCK   ?PR?RD_PARALLEL?ICE_SN
CODE    236BH  003BH  INBLOCK   ?PR?_CR_SNL200_PARALLE
CODE    23A6H  0047H  INBLOCK   ?PR?_SETCR_SNL200_PARA
CODE    23EDH  0046H  INBLOCK   ?PR?FLASHDELAY_SNL200_
CODE    2433H  0152H  INBLOCK   ?PR?_MCU_GETREGISTER_S
CODE    2585H  00F2H  INBLOCK   ?PR?_MCU_SETREGISTER_S
        2677H  0189H            *** GAP ***            ==>>這裡有0x189
CODE    2800H  0512H  INBLOCK   ?PR?MCU_GETREGIOS_SNL2
CODE    2D12H  015CH  INBLOCK   ?PR?MCU_SETREGIOS_SNL2
CODE    2E6EH  0189H  INBLOCK   ?PR?_GETONERAM_SNL200_
        2FF7H  0009H            *** GAP ***           ==>> 0x09
CODE    3000H  0120H  INBLOCK   ?PR?_SETONERAM_SNL200_
CODE    3120H  00FEH  INBLOCK   ?PR?MCU_GETPC_SNL200_P
CODE    321EH  0030H  INBLOCK   ?PR?MCU_SETPC_SNL200_P
CODE    324EH  003CH  INBLOCK   ?PR?ICE_FASTWRITE_SNL2
CODE    328AH  0057H  INBLOCK   ?PR?ICE_FASTREAD_SNL20
CODE    32E1H  005BH  INBLOCK   ?PR?CPU_RESET_SNL200_P
CODE    333CH  0083H  INBLOCK   ?PR?VERIFYDEVICE_SNL20
        33BFH  0441H            *** GAP ***          ====>>0x441 太多了吧@@
CODE    3800H  054FH  INBLOCK   ?PR?ICE_DOWNLOAD_SNL20
CODE    3D4FH  0236H  INBLOCK   ?PR?ICE_ADDBREAKPOINT_

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◆ From: 123.110.225.153
推 zstar:有限制 code 的空間嗎？或用 link 檔將 function 定址
→ zstar:ex. 倒數第二的 ICE_DOWNLOAD_SNL2 似乎是被刻意排在3800H
→ zstar:而您的 code 尚未填滿記憶體，自然有沒使用到的 GAP。
→ ast9869:CODE( ?PR?*?ICE(0x1200), ICE_SNL200_Parallel,...)
→ ast9869:^^^^^^^^^^^^^==>打錯了 0x2000才對
→ ast9869:如果沒有用?PR?*ICE(0x2000)的話，BL51會很Smart的幫你塞
→ ast9869:塞到剛好，但還是會有GAP, 只是會很少GAP...
※ 編輯: ast9869         來自: 123.110.225.153      (08/10 21:39)