You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
839 lines
25 KiB
839 lines
25 KiB
;-----------------------------------------------------------------------------
|
|
; This file contains the startup code used by the V850 C/C++ compiler.
|
|
;
|
|
; Copyright (c) 1998-2009 IAR Systems AB.
|
|
;
|
|
; $Revision: 5028 $
|
|
;
|
|
;-----------------------------------------------------------------------------
|
|
|
|
;
|
|
; Naming covention of labels in this file:
|
|
;
|
|
; ?xxx - External labels only accessed from assembler.
|
|
; __xxx - External labels accessed from or defined in C.
|
|
; xxx - Labels local to one module (note: this file contains
|
|
; several modules).
|
|
; main - The starting point of the user program.
|
|
;
|
|
|
|
#include "lxx.h"
|
|
#include "cfi.h"
|
|
|
|
CASEON
|
|
|
|
#define A0 R1
|
|
#define A1 R5
|
|
#define A2 R6
|
|
|
|
;---------------------------------------------------------------;
|
|
; Call Frame Informatio ;
|
|
;---------------------------------------------------------------;
|
|
|
|
CFNAMES
|
|
CFCOMMON
|
|
|
|
;---------------------------------------------------------------;
|
|
; Reset Vector ;
|
|
;---------------------------------------------------------------;
|
|
|
|
MODULE ?RESET
|
|
|
|
PUBLIC ?creset
|
|
EXTERN __program_start
|
|
|
|
COMMON INTVEC:CODE:ROOT(2)
|
|
|
|
?creset:
|
|
MOV __program_start, R1
|
|
JMP [R1]
|
|
|
|
ENDMOD
|
|
|
|
;---------------------------------------------------------------;
|
|
; Module start. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
MODULE __program_start
|
|
|
|
PUBLIC __program_start
|
|
PUBLIC ?cstartup
|
|
EXTERN ?creset
|
|
REQUIRE ?creset
|
|
|
|
;---------------------------------------------------------------;
|
|
; Forward declarations of segments used in this module. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
RSEG CODE:CODE:NOROOT(2)
|
|
RSEG CSTACK:DATA(2)
|
|
|
|
;---------------------------------------------------------------;
|
|
; The startup code. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
|
|
;;
|
|
;; The startup sequence contained in the final linked
|
|
;; application will consist of a mosaic containing
|
|
;; modules and segment parts defined in this file.
|
|
;;
|
|
;; The only part which is required is the call to
|
|
;; the function "main".
|
|
;;
|
|
|
|
EXTERN ?cstart_call_main
|
|
REQUIRE ?cstart_call_main
|
|
|
|
EXTERN __cstart_low_level_init
|
|
REQUIRE __cstart_low_level_init
|
|
|
|
PUBLIC ?BTT_cstart_begin
|
|
?BTT_cstart_begin:
|
|
|
|
?cstartup:
|
|
__program_start:
|
|
|
|
;---------------------------------------------------------------;
|
|
; Set up the stack and the global pointer. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
#if __CORE__ == __CORE_V850__
|
|
;; If an interrupt is issued beteween the MOVEA and
|
|
;; MOVHI instructions the SP will point into
|
|
;; nowhere. To fix this problem we build the new SP
|
|
;; value in R1 and moves it with an atomic operation
|
|
;; to SP.
|
|
MOVE_M SFE CSTACK, R1
|
|
MOV R1, SP
|
|
#else
|
|
MOVE_M SFE CSTACK, SP
|
|
#endif
|
|
|
|
EXTERN ?BREL_BASE
|
|
MOVE_M ?BREL_BASE + 0x8000, GP
|
|
|
|
EXTERN ?BREL_CBASE
|
|
MOVE_M ?BREL_CBASE + 0x8000, R25
|
|
|
|
;---------------------------------------------------------------;
|
|
; Setup constant registers. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
PUBLIC ?INIT_REG
|
|
|
|
?INIT_REG: MOV 255, R18
|
|
ORI 65535, zero, R19
|
|
|
|
ENDMOD
|
|
|
|
|
|
;---------------------------------------------------------------;
|
|
; Initialize the saddr base pointers. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
MODULE ?INIT_SADDR_BASE
|
|
|
|
RTMODEL "__reg_ep", "saddr"
|
|
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
PUBLIC ?INIT_SADDR_BASE
|
|
|
|
?INIT_SADDR_BASE:
|
|
EXTERN ?SADDR_BASE
|
|
MOVE_M ?SADDR_BASE, EP
|
|
|
|
ENDMOD
|
|
|
|
|
|
;---------------------------------------------------------------;
|
|
; If hardware must be initialized from C or if watch dog timer ;
|
|
; must be handled or if the segment init should not be ;
|
|
; performed it can now be done in `__low_level_init'. ;
|
|
;---------------------------------------------------------------;
|
|
; Call the user function __low_level_init, if defined. ;
|
|
; It is the responsibility of __low_level_init to require ;
|
|
; __cstart_low_level_init in order to be called by cstartup. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
MODULE ?CSTART_LOW_LEVEL_INIT
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
|
|
PUBLIC __cstart_low_level_init
|
|
EXTERN __low_level_init
|
|
REQUIRE __low_level_init
|
|
EXTERN ?no_seg_init
|
|
|
|
__cstart_low_level_init:
|
|
CALL_FUNC __low_level_init, LP, R1
|
|
ANDI 0xFF, R1, R1
|
|
BZ ?no_seg_init
|
|
|
|
ENDMOD
|
|
|
|
|
|
;---------------------------------------------------------------;
|
|
; Segment initialization code. Copy initialized ROMmed code to ;
|
|
; RAM and ?seg_clear uninitialized variables. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
MODULE ?INIT_MEMORY
|
|
|
|
;---------------------------------------------------------------;
|
|
; Zero out NEAR_Z ;
|
|
;---------------------------------------------------------------;
|
|
PUBLIC ?INIT_NEAR_Z
|
|
|
|
RSEG NEAR_Z(2)
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
|
|
EXTERN ?seg_clear
|
|
?INIT_NEAR_Z:
|
|
|
|
MOVE_M SFB NEAR_Z, A0
|
|
MOVE_M SFE NEAR_Z, A1
|
|
JARL ?seg_clear, LP
|
|
|
|
|
|
;---------------------------------------------------------------;
|
|
; Zero out BREL_Z ;
|
|
;---------------------------------------------------------------;
|
|
PUBLIC ?INIT_BREL_Z
|
|
|
|
RSEG BREL_Z(2)
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
|
|
EXTERN ?seg_clear
|
|
?INIT_BREL_Z:
|
|
|
|
MOVE_M SFB BREL_Z, A0
|
|
MOVE_M SFE BREL_Z, A1
|
|
JARL ?seg_clear, LP
|
|
|
|
;---------------------------------------------------------------;
|
|
; Zero out SADDR7_Z ;
|
|
;---------------------------------------------------------------;
|
|
PUBLIC ?INIT_SADDR7_Z
|
|
|
|
RSEG SADDR7_Z(2)
|
|
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
|
|
EXTERN ?seg_clear
|
|
?INIT_SADDR7_Z:
|
|
|
|
MOVE_M SFB SADDR7_Z, A0
|
|
MOVE_M SFE SADDR7_Z, A1
|
|
JARL ?seg_clear, LP
|
|
|
|
|
|
;---------------------------------------------------------------;
|
|
; Zero out SADDR8_Z ;
|
|
;---------------------------------------------------------------;
|
|
PUBLIC ?INIT_SADDR8_Z
|
|
|
|
RSEG SADDR8_Z(2)
|
|
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
|
|
EXTERN ?seg_clear
|
|
?INIT_SADDR8_Z:
|
|
|
|
MOVE_M SFB SADDR8_Z, A0
|
|
MOVE_M SFE SADDR8_Z, A1
|
|
JARL ?seg_clear, LP
|
|
|
|
|
|
;---------------------------------------------------------------;
|
|
; Zero out BREL23_Z ;
|
|
;---------------------------------------------------------------;
|
|
|
|
#if __CORE__ >= __CORE_V850E2M__
|
|
|
|
PUBLIC ?INIT_BREL23_Z
|
|
|
|
RSEG BREL23_Z(2)
|
|
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
|
|
EXTERN ?seg_clear
|
|
?INIT_BREL23_Z:
|
|
|
|
MOVE_M SFB BREL23_Z, A0
|
|
MOVE_M SFE BREL23_Z, A1
|
|
JARL ?seg_clear, LP
|
|
#endif
|
|
|
|
;---------------------------------------------------------------;
|
|
; Zero out HUGE_Z ;
|
|
;---------------------------------------------------------------;
|
|
PUBLIC ?INIT_HUGE_Z
|
|
|
|
RSEG HUGE_Z(2)
|
|
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
|
|
EXTERN ?seg_clear
|
|
?INIT_HUGE_Z:
|
|
|
|
MOVE_M SFB HUGE_Z, A0
|
|
MOVE_M SFE HUGE_Z, A1
|
|
JARL ?seg_clear, LP
|
|
|
|
;---------------------------------------------------------------;
|
|
; Copy NEAR_ID into NEAR_I ;
|
|
;---------------------------------------------------------------;
|
|
PUBLIC ?INIT_NEAR_I
|
|
|
|
RSEG NEAR_I(2)
|
|
RSEG NEAR_ID(2)
|
|
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
|
|
EXTERN ?seg_copy
|
|
?INIT_NEAR_I:
|
|
|
|
MOVE_M SFB NEAR_ID, A0
|
|
MOVE_M SFE NEAR_ID, A1
|
|
MOVE_M SFB NEAR_I, A2
|
|
JARL ?seg_copy, LP
|
|
|
|
;---------------------------------------------------------------;
|
|
; Copy BREL_ID into BREL_I ;
|
|
;---------------------------------------------------------------;
|
|
PUBLIC ?INIT_BREL_I
|
|
|
|
RSEG BREL_I(2)
|
|
RSEG BREL_ID(2)
|
|
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
|
|
EXTERN ?seg_copy
|
|
?INIT_BREL_I:
|
|
|
|
MOVE_M SFB BREL_ID, A0
|
|
MOVE_M SFE BREL_ID, A1
|
|
MOVE_M SFB BREL_I, A2
|
|
JARL ?seg_copy, LP
|
|
|
|
;---------------------------------------------------------------;
|
|
; Copy SADDR7_ID into SADDR7_I ;
|
|
;---------------------------------------------------------------;
|
|
PUBLIC ?INIT_SADDR7_I
|
|
|
|
RSEG SADDR7_I(2)
|
|
RSEG SADDR7_ID(2)
|
|
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
|
|
EXTERN ?seg_copy
|
|
?INIT_SADDR7_I:
|
|
|
|
MOVE_M SFB SADDR7_ID, A0
|
|
MOVE_M SFE SADDR7_ID, A1
|
|
MOVE_M SFB SADDR7_I, A2
|
|
JARL ?seg_copy, LP
|
|
|
|
;---------------------------------------------------------------;
|
|
; Copy SADDR8_ID into SADDR8_I ;
|
|
;---------------------------------------------------------------;
|
|
PUBLIC ?INIT_SADDR8_I
|
|
|
|
RSEG SADDR8_I(2)
|
|
RSEG SADDR8_ID(2)
|
|
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
|
|
EXTERN ?seg_copy
|
|
?INIT_SADDR8_I:
|
|
|
|
MOVE_M SFB SADDR8_ID, A0
|
|
MOVE_M SFE SADDR8_ID, A1
|
|
MOVE_M SFB SADDR8_I, A2
|
|
JARL ?seg_copy, LP
|
|
|
|
;---------------------------------------------------------------;
|
|
; Copy BREL23_ID into BREL23_I ;
|
|
;---------------------------------------------------------------;
|
|
|
|
#if __CORE__ >= __CORE_V850E2M__
|
|
|
|
PUBLIC ?INIT_BREL23_I
|
|
|
|
RSEG BREL23_I(1)
|
|
RSEG BREL23_ID(1)
|
|
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
|
|
EXTERN ?seg_copy
|
|
|
|
?INIT_BREL23_I:
|
|
|
|
MOVE_M SFB BREL23_ID, A0
|
|
MOVE_M SFE BREL23_ID, A1
|
|
MOVE_M SFB BREL23_I, A2
|
|
JARL ?seg_copy, LP
|
|
|
|
#endif
|
|
|
|
;---------------------------------------------------------------;
|
|
; Copy HUGE_ID into HUGE_I ;
|
|
;---------------------------------------------------------------;
|
|
PUBLIC ?INIT_HUGE_I
|
|
|
|
RSEG HUGE_I(1)
|
|
RSEG HUGE_ID(1)
|
|
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
|
|
EXTERN ?seg_copy
|
|
|
|
?INIT_HUGE_I:
|
|
|
|
MOVE_M SFB HUGE_ID, A0
|
|
MOVE_M SFE HUGE_ID, A1
|
|
MOVE_M SFB HUGE_I, A2
|
|
JARL ?seg_copy, LP
|
|
|
|
|
|
;---------------------------------------------------------------;
|
|
; Destination label when skipping data initialization. ;
|
|
;---------------------------------------------------------------;
|
|
PUBLIC ?no_seg_init
|
|
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
|
|
?no_seg_init:
|
|
|
|
ENDMOD
|
|
|
|
|
|
;---------------------------------------------------------------;
|
|
; Calculate code distance (PIC only). ;
|
|
;---------------------------------------------------------------;
|
|
|
|
MODULE ?INIT_PIC
|
|
PUBLIC ?INIT_PIC
|
|
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
|
|
RTMODEL "__code_model", "pic"
|
|
|
|
EXTERN ?CODE_DISTANCE
|
|
EXTERN_LS_M
|
|
|
|
?INIT_PIC:
|
|
JARL ref_point, A1
|
|
ref_point: MOVE_M ref_point, A2
|
|
SUB A2, A1
|
|
;; Expands to correct store instruction/sequence.
|
|
STORE_M A1, ?CODE_DISTANCE, A2
|
|
;; Note: A1 (the value of ?CODE_DISTANCE) is used below!
|
|
|
|
ENDMOD
|
|
|
|
|
|
#if __CORE__ >= __CORE_V850E2M__
|
|
|
|
;---------------------------------------------------------------;
|
|
; Initialize the BSEL system register bank selector. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
MODULE ?INIT_BSEL
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
PUBLIC ?INIT_BSEL
|
|
|
|
?INIT_BSEL:
|
|
LDSR R0, 31 ; BSEL
|
|
|
|
ENDMOD
|
|
|
|
#endif
|
|
|
|
|
|
#if __CORE__ >= __CORE_V850E__
|
|
|
|
;---------------------------------------------------------------;
|
|
; Initialize the CALLT base pointers. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
|
|
MODULE ?INIT_CALLT
|
|
PUBLIC ?INIT_CALLT
|
|
EXTERN ?CALLT_BASE
|
|
COMMON CLTVEC(2)
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
|
|
RTMODEL "__cpu", "v850e"
|
|
|
|
REQUIRE ?CALLT_BASE
|
|
|
|
;; The Call table base pointer
|
|
?INIT_CALLT:
|
|
MOVE_M SFB CLTVEC, A2
|
|
#ifdef CODE_MODEL_PIC
|
|
EXTERN ?CODE_DISTANCE
|
|
REQUIRE ?CODE_DISTANCE
|
|
|
|
;; Add the value of ?CODE_DISTANCE calculated above
|
|
ADD A1, A2
|
|
#endif
|
|
#if __CORE__ >= __CORE_V850E2M__
|
|
EXTERN ?INIT_BSEL
|
|
REQUIRE ?INIT_BSEL
|
|
#endif
|
|
LDSR A2, 20 ; CTBP
|
|
|
|
ENDMOD
|
|
#endif
|
|
|
|
|
|
#if __CORE__ >= __CORE_V850E2M__
|
|
|
|
;---------------------------------------------------------------;
|
|
; Initialize the SYSCALL base pointers. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
MODULE ?INIT_SYSCALL
|
|
PUBLIC ?INIT_SYSCALL
|
|
EXTERN ?INIT_BSEL
|
|
EXTERN ?SYSCALL_BASE
|
|
COMMON SYSCALLVEC(2)
|
|
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
|
|
REQUIRE ?INIT_BSEL
|
|
REQUIRE ?SYSCALL_BASE
|
|
|
|
;; The syscall table base pointer
|
|
?INIT_SYSCALL:
|
|
MOVE_M SFB SYSCALLVEC, A2
|
|
#ifdef CODE_MODEL_PIC
|
|
EXTERN ?CODE_DISTANCE
|
|
REQUIRE ?CODE_DISTANCE
|
|
|
|
;; Add the value of ?CODE_DISTANCE calculated above
|
|
ADD A1, A2
|
|
#endif
|
|
LDSR A2, 12 ; SCBP
|
|
|
|
MOVE_M ((SFE SYSCALLVEC - SFB SYSCALLVEC)/4) - 1, A2
|
|
LDSR A2, 11 ; SCCFG
|
|
|
|
ENDMOD
|
|
|
|
#endif
|
|
|
|
;---------------------------------------------------------------;
|
|
; This segment part is required by the compiler when it is ;
|
|
; necessary to call constructors of global objects. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
MODULE ?CALL_MAIN
|
|
RSEG DIFUNCT(2)
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
PUBLIC ?cstart_call_ctors
|
|
|
|
EXTERN __call_ctors
|
|
|
|
?cstart_call_ctors:
|
|
MOVE_M SFB DIFUNCT, R1
|
|
MOVE_M SFE DIFUNCT, R5
|
|
|
|
CALL_FUNC __call_ctors, LP, R6
|
|
|
|
|
|
;---------------------------------------------------------------;
|
|
; Call C main() with no parameters. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
PUBLIC ?cstart_call_main
|
|
|
|
EXTERN main
|
|
EXTERN exit
|
|
EXTERN __exit
|
|
|
|
?cstart_call_main:
|
|
CALL_FUNC main, LP, R6
|
|
|
|
;---------------------------------------------------------------;
|
|
; If we come here we have returned from main with a 'return' ;
|
|
; statement, not with a call to exit() or abort(). ;
|
|
; In this case we must call exit() here for a nice ending. ;
|
|
; Note: The return value of main() is the argument to exit(). ;
|
|
;---------------------------------------------------------------;
|
|
CALL_FUNC exit, LP, R6
|
|
|
|
;---------------------------------------------------------------;
|
|
; We should never come here, but just in case. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
MOV __exit, LP
|
|
JMP [LP]
|
|
|
|
PUBLIC ?BTT_cstart_end
|
|
?BTT_cstart_end:
|
|
|
|
|
|
;---------------------------------------------------------------;
|
|
; Copy a chunk of memory. ;
|
|
; A0 = Start of from block ;
|
|
; A1 = End of from block (+1) ;
|
|
; A2 = Start of to block ;
|
|
;---------------------------------------------------------------;
|
|
|
|
PUBLIC ?seg_copy
|
|
PUBLIC ?seg_clear
|
|
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
REQUIRE done
|
|
|
|
cp_cont: LD.B 0[A0], R7
|
|
ADD 1, A0
|
|
ST.B R7, 0[A2]
|
|
ADD 1, A2
|
|
|
|
;; Note: The entry point is here.
|
|
?seg_copy: CMP A0, A1
|
|
BNE cp_cont
|
|
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
|
|
done: JMP [LP]
|
|
|
|
;---------------------------------------------------------------;
|
|
; Clear a chunk of memory. ;
|
|
; A0 = Start of block ;
|
|
; A1 = End of block (+1) ;
|
|
;---------------------------------------------------------------;
|
|
|
|
RSEG CSTART:CODE:NOROOT(1)
|
|
REQUIRE done
|
|
|
|
?seg_clear: CMP A0, A1
|
|
BE done
|
|
cl_cont: ST.B zero, 0[A0]
|
|
ADD 1, A0
|
|
BR ?seg_clear
|
|
|
|
ENDMOD
|
|
|
|
|
|
;---------------------------------------------------------------;
|
|
; _exit code ;
|
|
; ;
|
|
; Call destructors (if required), then fall through to __exit. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
MODULE ?_exit
|
|
PUBLIC _exit
|
|
PUBLIC ?BTT_exit_begin
|
|
EXTERN ?exit_restore2
|
|
RSEG RCODE:CODE:NOROOT(1)
|
|
|
|
?BTT_exit_begin:
|
|
_exit:
|
|
REQUIRE ?exit_restore2
|
|
;; If any of the two pieces of code "__cstart_call_dtors"
|
|
;; or "__cstart_closeall" is called we need to save the
|
|
;; argument to "_exit". However, since we never will
|
|
;; from this function we can use a permanent register
|
|
;; rather than storing the value on the stack.
|
|
|
|
RSEG RCODE:CODE:NOROOT(1)
|
|
EXTERN ?exit_restore
|
|
PUBLIC ?exit_save
|
|
?exit_save:
|
|
REQUIRE ?exit_restore
|
|
|
|
MOV R1, R29
|
|
|
|
RSEG RCODE:CODE:NOROOT(1)
|
|
PUBLIC __cstart_call_dtors
|
|
EXTERN __call_dtors
|
|
REQUIRE ?exit_save
|
|
|
|
;; This label is required by "__record_needed_destruction".
|
|
|
|
__cstart_call_dtors:
|
|
CALL_FUNC __call_dtors, LP, R1
|
|
|
|
ENDMOD
|
|
|
|
;; A new module is needed so that a non-terminal-IO program
|
|
;; doesn't include this, which requires __putchar.
|
|
|
|
MODULE ?__cstart_closeall
|
|
RSEG RCODE:CODE:NOROOT(1)
|
|
|
|
;; When stdio is used, the following piece of code is
|
|
;; required by the _Closreg macro.
|
|
|
|
PUBLIC __cstart_closeall
|
|
EXTERN ?exit_save
|
|
REQUIRE ?exit_save
|
|
|
|
;; This label is required by _Closreg
|
|
|
|
__cstart_closeall:
|
|
EXTERN _Close_all
|
|
CALL_FUNC _Close_all, LP, R1
|
|
|
|
ENDMOD
|
|
|
|
;; Restore the argument previously stored by the "save" section
|
|
;; above.
|
|
|
|
MODULE ?_exit_end
|
|
RSEG RCODE:CODE:NOROOT(1)
|
|
|
|
PUBLIC ?exit_restore
|
|
EXTERN ?exit_restore2
|
|
|
|
?exit_restore:
|
|
REQUIRE ?exit_restore2
|
|
MOV R29, R1
|
|
|
|
ENDMOD
|
|
|
|
MODULE ?_exit_end2
|
|
PUBLIC ?BTT_exit_end
|
|
RSEG RCODE:CODE:NOROOT(1)
|
|
|
|
PUBLIC ?exit_restore2
|
|
EXTERN __exit
|
|
?exit_restore2:
|
|
|
|
MOV __exit, LP
|
|
JMP [LP]
|
|
|
|
?BTT_exit_end:
|
|
ENDMOD
|
|
|
|
|
|
;---------------------------------------------------------------;
|
|
; Define the base of the base relative (brel) data for RAM. ;
|
|
; ;
|
|
; This empty segment should be places in front of the brel ;
|
|
; RAM data segments. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
MODULE ?BREL_BASE
|
|
PUBLIC ?BREL_BASE
|
|
|
|
RSEG BREL_BASE:DATA:NOROOT(2)
|
|
|
|
?BREL_BASE:
|
|
|
|
ENDMOD
|
|
|
|
|
|
;---------------------------------------------------------------;
|
|
; Define the base of the base relative (brel) data for ROM. ;
|
|
; ;
|
|
; This empty segment should be places in front of the brel ;
|
|
; ROM data segment. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
MODULE ?BREL_CBASE
|
|
PUBLIC ?BREL_CBASE
|
|
|
|
RSEG BREL_CBASE:CONST:NOROOT(2)
|
|
|
|
?BREL_CBASE:
|
|
|
|
ENDMOD
|
|
|
|
|
|
;---------------------------------------------------------------;
|
|
; Define the base of the short addressing (saddr) data. ;
|
|
; ;
|
|
; This empty segment should be places in front of the saddr ;
|
|
; data segments. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
MODULE ?SADDR_BASE
|
|
|
|
RTMODEL "__reg_ep", "saddr"
|
|
|
|
PUBLIC ?SADDR_BASE
|
|
RSEG SADDR_BASE:CONST:NOROOT(2)
|
|
|
|
EXTERN ?INIT_SADDR_BASE
|
|
REQUIRE ?INIT_SADDR_BASE
|
|
|
|
?SADDR_BASE:
|
|
|
|
ENDMOD
|
|
|
|
|
|
;---------------------------------------------------------------;
|
|
; The base of the CALLT vector. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
MODULE ?CALLT_BASE
|
|
|
|
PUBLIC ?CALLT_BASE
|
|
COMMON CLTVEC:CONST:NOROOT(2)
|
|
DATA
|
|
?CALLT_BASE:
|
|
|
|
ENDMOD
|
|
|
|
|
|
#if __CORE__ >= __CORE_V850E2M__
|
|
|
|
;---------------------------------------------------------------;
|
|
; The base of the SYSCALL vector. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
MODULE ?SYSCALL_BASE
|
|
|
|
PUBLIC ?SYSCALL_BASE
|
|
COMMON SYSCALLVEC:CONST:NOROOT(2)
|
|
DATA
|
|
?SYSCALL_BASE:
|
|
|
|
ENDMOD
|
|
|
|
#endif
|
|
|
|
;---------------------------------------------------------------;
|
|
; The distance the code has been moved when using position ;
|
|
; independent code. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
MODULE ?CODE_DISTANCE
|
|
|
|
RTMODEL "__code_model", "pic"
|
|
|
|
PUBLIC ?CODE_DISTANCE
|
|
RSEG LIBRARY_N:DATA:NOROOT(2)
|
|
|
|
EXTERN ?INIT_PIC
|
|
REQUIRE ?INIT_PIC
|
|
|
|
?CODE_DISTANCE:
|
|
DS 4
|
|
|
|
ENDMOD
|
|
|
|
|
|
;---------------------------------------------------------------;
|
|
; A dummy "low level init" that will be used if the user ;
|
|
; hasn't defined this function. ;
|
|
;---------------------------------------------------------------;
|
|
|
|
MODULE ?__low_level_init_stub
|
|
PUBLIC __low_level_init
|
|
RSEG RCODE:CODE:NOROOT
|
|
__low_level_init:
|
|
MOV 1, R1
|
|
JMP [LP]
|
|
|
|
ENDMOD
|
|
|
|
END
|
|
|