我现在正在研究Keil uVision4，当我用它来编译UC/OS-II系统(想移植到基于cortex-m3的内核的MCU上）时，结果有很多错误，急求各位大侠高人指点，感激不尽...

第一类错误如下：
assembling
OS_CPU_A.ASM...
..\SOFTWARE\uCOS-II\Ix86L\BC45\OS_CPU_A.ASM(23): error: A1163E: Unknown opcode PUBLIC , expecting opcode or Macro
..\SOFTWARE\uCOS-II\Ix86L\BC45\OS_CPU_A.ASM(24): error: A1163E: Unknown opcode PUBLIC , expecting opcode or Macro
..\SOFTWARE\uCOS-II\Ix86L\BC45\OS_CPU_A.ASM(25): error: A1163E: Unknown opcode PUBLIC , expecting opcode or Macro
..\SOFTWARE\uCOS-II\Ix86L\BC45\OS_CPU_A.ASM(26): error: A1163E: Unknown opcode PUBLIC , expecting opcode or Macro
..\SOFTWARE\uCOS-II\Ix86L\BC45\OS_CPU_A.ASM(28): error: A1163E: Unknown opcode EXTRN , expecting opcode or Macro
..\SOFTWARE\uCOS-II\Ix86L\BC45\OS_CPU_A.ASM(29): error: A1163E: Unknown opcode EXTRN , expecting opcode or Macro
..\SOFTWARE\uCOS-II\Ix86L\BC45\OS_CPU_A.ASM(30): error: A1163E: Unknown opcode EXTRN , expecting opcode or Macro
..\SOFTWARE\uCOS-II\Ix86L\BC45\OS_CPU_A.ASM(32): error: A1163E: Unknown opcode EXTRN , expecting opcode or Macro
..\SOFTWARE\uCOS-II\Ix86L\BC45\OS_CPU_A.ASM(33): error: A1163E: Unknown opcode EXTRN , expecting opcode or Macro
..\SOFTWARE\uCOS-II\Ix86L\BC45\OS_CPU_A.ASM(34): error: A1163E: Unknown opcode EXTRN , expecting opcode or Macro
..\SOFTWARE\uCOS-II\Ix86L\BC45\OS_CPU_A.ASM(35): error: A1163E: Unknown opcode EXTRN , expecting opcode or Macro
..\SOFTWARE\uCOS-II\Ix86L\BC45\OS_CPU_A.ASM(36): error: A1163E: Unknown opcode EXTRN , expecting opcode or Macro
..\SOFTWARE\uCOS-II\Ix86L\BC45\OS_CPU_A.ASM(37): error: A1163E: Unknown opcode EXTRN , expecting opcode or Macro
..\SOFTWARE\uCOS-II\Ix86L\BC45\OS_CPU_A.ASM(38): error: A1163E: Unknown opcode EXTRN , expecting opcode or Macro
..\SOFTWARE\uCOS-II\Ix86L\BC45\OS_CPU_A.ASM(40): error: A1163E: Unknown opcode LARGE , expecting opcode or Macro

第二类错误如下：
compiling OS_CPU_C.C...
F:\SOFTWARE\uCOS-II\Ix86L\BC45\OS_CPU_C.C(254): warning:  #223-D: function "FP_SEG" declared implicitly
F:\SOFTWARE\uCOS-II\Ix86L\BC45\OS_CPU_C.C(255): warning:  #223-D: function "FP_OFF" declared implicitly
F:\SOFTWARE\uCOS-II\Ix86L\BC45\OS_CPU_C.C(261): warning:  #223-D: function "MK_FP" declared implicitly
F:\SOFTWARE\uCOS-II\Ix86L\BC45\OS_CPU_C.C(262): warning:  #223-D: function "memcpy" declared implicitly
F:\SOFTWARE\uCOS-II\Ix86L\BC45\OS_CPU_C.C(262): error:  #20: identifier "_SS" is undefined