;/////////////////////////////////////////////////////////////////////////// ; file: ncrt0.a30 ; Revision: 1.0 ; Date: 2004/08/3 ;*************************************************************************** ; ; ncrt0.a30 : NC30 startup program ; ;*************************************************************************** PRCR .equ 000ah ; プロテクトレジスタ PM0 .equ 0004h ; プロセッサモードレジスタ 0 PM1 .equ 0005h ; プロセッサモードレジスタ 1 CM0 .equ 0006h ; システムクロック制御レジスタ 0 CM1 .equ 0007h ; システムクロック制御レジスタ 1 CM2 .equ 000ch ; システムクロック制御レジスタ 2 PLC0 .equ 001ch ; PLL制御レジスタ0 CSR .equ 0008h ; チップセレクト制御レジスタ PM2 .equ 001Eh ; プロセッサモードレジスタ 2 CSE .equ 001Bh ; チップセレクトウェイト 62P USE_MEMALLOC .equ 0 ; 1:メモリ管理関数使用(malloc等) ; 0:未使用 USE_STDIO .equ 0 ; 1:標準入出力関数使用(printf等) ; 0:未使用 M62TYPE .equ 1 ; M16C/62を使用 KDVECTOR .equ 0FF900h ; ver 3.00 ; .glb __BankSelect ;__BankSelect .equ 0BH ;--------------------------------------------------------------------- ; HEEP SIZE definition ;--------------------------------------------------------------------- .if USE_MEMALLOC == 0 ;メモリ管理関数(malloc等) HEAPSIZE .equ 0 ; 未使用時 .else HEAPSIZE .equ 768 ; 使用時 .endif ;--------------------------------------------------------------------- ; STACK SIZE definition ;--------------------------------------------------------------------- STACKSIZE .equ 512 ;--------------------------------------------------------------------- ; INTERRUPT STACK SIZE definition ;--------------------------------------------------------------------- ISTACKSIZE .equ 512 ;--------------------------------------------------------------------- ; INTERRUPT VECTOR ADDRESS definition ;--------------------------------------------------------------------- VECTOR_ADR .equ 0fa000h ;--------------------------------------------------------------- ; special page definition ;--------------------------------------------------------------- ; macro define for special page ; ;Format: ; SPECIAL number ; SPECIAL .macro NUM .org 0FFFFEH-(NUM*2) .glb __SPECIAL_@NUM .word __SPECIAL_@NUM & 0FFFFH .endm ;--------------------------------------------------------------------- ; Section allocation ;--------------------------------------------------------------------- .list OFF .include sect30.inc .list ON ;--------------------------------------------------------------------- ; SBDATA area definition ;--------------------------------------------------------------------- .glb __SB__ __SB__ .equ data_SE_top ;==================================================================== ; Initialize Macro declaration ;--------------------------------------------------------------------- N_BZERO .macro TOP_ ,SECT_ mov.b #00H, R0L mov.w #(TOP_ & 0FFFFH), A1 mov.w #sizeof SECT_ , R3 sstr.b .endm N_BCOPY .macro FROM_,TO_,SECT_ mov.w #(FROM_ & 0FFFFH),A0 mov.b #(FROM_ >>16),R1H mov.w #TO_ ,A1 mov.w #sizeof SECT_ , R3 smovf.b .endm BZERO .macro TOP_,SECT_ push.w #sizeof SECT_ >> 16 push.w #sizeof SECT_ & 0ffffh pusha TOP_ >>16 pusha TOP_ & 0ffffh .stk 8 .glb _bzero .call _bzero,G jsr.a _bzero .endm BCOPY .macro FROM_ ,TO_ ,SECT_ push.w #sizeof SECT_ >> 16 push.w #sizeof SECT_ & 0ffffh pusha TO_ >>16 pusha TO_ & 0ffffh pusha FROM_ >>16 pusha FROM_ & 0ffffh .stk 12 .glb _bcopy .call _bcopy,G jsr.a _bcopy .endm ;==================================================================== ; Interrupt section start ;--------------------------------------------------------------------- .insf start,S,0 .glb start .section interrupt start: ;--------------------------------------------------------------------- ; after reset,this program will start ;--------------------------------------------------------------------- ldc #istack_top,isp ;set istack pointer mov.b #00000011b, PRCR ;プロセッサモードレジスタPM0,1への書き込み許可 mov.b #00000000b,PM0 ;PM0: single chip mode / P40-43=I/O mov.b #00001000b,PM1 ;PM1: Normal/No Wait memory192/15 BLOCK_A=able P37-34=I/O mov.b #00000000b,PM2 ;PM2: mov.b #00001000b, CM0 ;メインクロック分周なし(CM16,17有効) mov.b #00100000b, CM1 ;CM16,17=0　分周なし PLLクロック選択 mov.b #00000000b, CM2 ; mov.b #10010010b, PLC0 ;PLL動作　4逓倍 mov.b #00100010b, CM1 ;CM16,17=0　分周なし PLLクロック選択 mov.b #00000000b, PRCR ;プロセッサモードレジスタPM0,1への書き込み禁止 ldc #0080h, flg ;ユーザスタックポインタ ldc #stack_top, sp ;set stack pointer ldc #data_SE_top,sb ;set sb register ldintb #VECTOR_ADR fset i ;割り込み許可 ;==================================================================== ; NEAR area initialize. ;-------------------------------------------------------------------- ; bss zero clear ;-------------------------------------------------------------------- N_BZERO bss_SE_top,bss_SE N_BZERO bss_SO_top,bss_SO N_BZERO bss_NE_top,bss_NE N_BZERO bss_NO_top,bss_NO ;--------------------------------------------------------------------- ; initialize data section ;--------------------------------------------------------------------- N_BCOPY data_SEI_top,data_SE_top,data_SE N_BCOPY data_SOI_top,data_SO_top,data_SO N_BCOPY data_NEI_top,data_NE_top,data_NE N_BCOPY data_NOI_top,data_NO_top,data_NO ;==================================================================== ; FAR area initialize. ;--------------------------------------------------------------------- ; bss zero clear ;--------------------------------------------------------------------- BZERO bss_FE_top,bss_FE BZERO bss_FO_top,bss_FO ;--------------------------------------------------------------------- ; Copy edata_E(O) section from edata_EI(OI) section ;--------------------------------------------------------------------- BCOPY data_FEI_top,data_FE_top,data_FE BCOPY data_FOI_top,data_FO_top,data_FO ldc #stack_top,sp ; BZERO, BCOPYで使用したスタックを元に戻す(= 8*2 + 12*2) .stk -40 ;==================================================================== ; heap area initialize ;--------------------------------------------------------------------- .if USE_MEMALLOC == 1 ;メモリ管理関数(malloc等) .glb __mbase .glb __mnext .glb __msize mov.w #(heap_top&0FFFFH), __mbase mov.w #(heap_top>>16), __mbase+2 mov.w #(heap_top&0FFFFH), __mnext mov.w #(heap_top>>16), __mnext+2 mov.w #(HEAPSIZE&0FFFFH), __msize mov.w #(HEAPSIZE>>16), __msize+2 .endif ;==================================================================== ; Initialize standard I/O ;--------------------------------------------------------------------- .if USE_STDIO == 1 ; 標準入出力関数(printf等) .glb _init .call _init,G jsr.a _init .endif ;==================================================================== ; Call main() function ;--------------------------------------------------------------------- ldc #0h,fb ; for debuger .glb _main jsr.a _main ;==================================================================== ; exit() function ;--------------------------------------------------------------------- .glb _exit .glb $exit _exit: ; End program $exit: jmp _exit .einsf ;==================================================================== ; dummy interrupt function ;--------------------------------------------------------------------- dummy_int: reit .end ;***************************************************************************