Re: 馨笛撙杽

髑嘍樊“ movem.l d0-d7/a0-a5,-(sp) @ h003.p066.iij4u.or.jp on 97/9/21 08:43:44

posted by 68user @ oryo.inforyoma.or.jp on 97/9/21 06:57:13

> int *base_addr = malloc( ( size_t ) 2000 );
>
> for ( int h=0 , int *p=base_addr+100 ; p < base_addr+1000 ; p++ ){
> ４h += *p;
> }
>
> 反﹜
>
> # $19 = base_addr
>
> ４４４add $8,$0,$0 ４４４４# h = 0
> ４４４addi $20,$19,1000*4 ４# $19 = base_addr + 1000 * sizeof(int)
> Loop:
> ４４４lw $9,0($19)４４４ # $9 = base_addr + $19
> ４４４add $8,$8,$9４４４ # h += $9
> ４４４addi $19,$19,4４４ # $19 += sizeof(int)
> ４４４bne $19,$20,Loop
>
> 仇氏卅普元卞卅月氏匹仄斤丹井〝
>

釐蟲恌中午閤中引允﹝(◤方仁歹井勻化中卅中仁六卞)
凶分﹜for妐及"*p=base_addr+100"反升仇〝(^^;)

４４４add $8,$0,$0 ４４４４# h = 0
４４４addi $20,$19,1000*4 ４# $20 = base_addr + 1000 * sizeof(int)
４４４addi $21,$19,100*4 ４# $21 = base_addr + 100 * sizeof(int)
Loop:
４４４lw $9,0($21)４４４ # $9 = *p
﹛﹛﹛nop﹛﹛﹛﹛﹛﹛﹛﹛# 贊曹旦伕永玄及啃﹜$9毛銀勻凶抰挓互撢墊匹五卅中
４４４add $8,$8,$9４４４ # h += $9
４４４addi $21,$21,4４４ # $21 += sizeof(int)
４４４bne $21,$20,Loop

仇氏卅午仇欠匹允井〝
nop卞楮仄化反失本件皮仿匹鴃澎卞じ木化仁木引仄凶互﹜午曰丐尹內踏中化云五引允﹝
引丐﹜瘉贗祭允月午仇丹卅月午閤中引允﹝

Loop:
４４４lw $9,0($21)４４４ # $9 = *p
４４４addi $21,$21,4４４ # $21 += sizeof(int)
４４４add $8,$8,$9４４４ # h += $9
４４４bne $21,$20,Loop

什勻﹜今日卞仇丹卅月日仄中...﹝(失本件皮仿毛騷仄凶日仇丹卅勻凶)

Loop:
４４４lw $9,0($21)４４４ # $9 = *p
４４４addi $21,$21,4４４ # $21 += sizeof(int)
４４４bne $21,$20,Loop
４４４add $8,$8,$9４４４ # h += $9﹛(坌渭卞方月贊曹旦伕永玄)

匹手﹜忔騷卞踏中凶日

４４４bne $21,$20,Loop
﹛﹛﹛nop
４４４add $8,$8,$9４４４ # h += $9

午﹜カ摹今木化仄引勻凶﹝中支反支﹜梂互蕉中﹝(^^;)
支反曰﹜豳躂卞戊件由奶仿毛銀丹屯五匹仄斤丹友﹝

> 午仇欠匹﹜
>
> > movem.l d0-d7/a0-a5,-(sp)
>
> 仇氏卅嫖窗チ卅抰挓勻化RISC匹反忔騷反繡箕仄卅中氏匹允井友〝
> 68000煙匹手翕僻抰挓分勻凶及井手仄木卅中仃升(方仁襞日卅中)

仇木反隙爛仄凶伊斥旦正毛賜⺀卞PUSH仄化中仁歹仃匹允互﹜域抰拺匹呁醒莢及丟乒伉失弁本旦毛墊丹午中丹及反馴引仄仁卅中匹仄斤丹(由奶皿仿奶件及佶仆卞卅月〝)﹝
68煙反﹜1抰挓匹質咥仄引允﹝(^^;)MC68000及樺寧反﹜8+n(隙爛仄凶伊斥旦正及醒)x4弁伕永弁井井曰引允﹝

Re: 氏〝 - 68user 97/9/21 14:08:25
- Re: 氏〝 - movem.l d0-d7/a0-a5,-(sp) 97/9/21 22:09:09
  - Re: 丹□氏戈內井仄中〞 - 68user 97/9/22 00:33:03
    - 勾勻仇氏匹中中匹允井〝〝 - BOK 97/9/22 02:45:51
      - Re: 中氻忖黎氻忖本(^^; - 68user 97/9/22 03:08:41
        
        Re: 撩斪﹝╱正奶玄伙反＞升丹冗升丹冗(^^;＝匹允(T.O.) - 68user 97/9/22 03:10:59
        
        凶少氏 - BOK 97/9/22 03:44:17
        
        Re: 丐曰互午丹仍介中引仄凶〞 - 68user 97/9/22 04:00:58
        
        Re: 互氏壬勻化〞﹋␔␏﹌ - BOK 97/9/22 07:11:44
        
        Re: 敦瑛仄化中月... - movem.l d0-d7/a0-a5,-(sp) 97/9/22 07:45:12
      - Re: 手丹葦化中卅中午閤丹互... - movem.l d0-d7/a0-a5,-(sp) 97/9/22 22:59:42
        
        葦化凶曰仄化 - BOK 97/9/22 23:47:02
  - Re: 贊允亢凶井〝 - BOK 97/9/22 01:59:25