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tarchan 2024/06/11
javascript

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ARM
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tarchan 2023/07/26
book

cpu
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tarchan 2023/01/02
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apple

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tarchan 2022/06/08
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cpu

gpu
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tarchan 2022/01/22
intel

cpu
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tarchan 2021/11/06
cpu
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tarchan 2021/10/14
amd

cpu
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tarchan 2021/09/30
intel

cpu
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tarchan 2021/06/21
cpu

interview
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M1RACLES: Apple M1 Exposed To Covert Channel Vulnerability - Phoronix
M1RACLES: Apple M1 Exposed To Covert Channel Vulnerability Written by Michael Larabel in Linux Security on 26 May 2021 at 05:40 AM EDT. 26 Comments Apple's shiny new in-house M1 Arm chip is the latest processor challenged by a security vulnerability. The "M1RACLES" vulnerability was made public today as a covert channel vulnerability by where a mysterious register could leak EL0 state. The M1RACLE
tarchan 2021/05/27
apple

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tarchan 2021/05/07
ibm

cpu
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tarchan 2021/04/27
apple

cpu
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tarchan 2021/01/13
cpu

amd

intel
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M1ã§ã‚„ã£ã¦ã‚‹ã‚‰ã—ã„ï¼ˆAppleç”¨ã®ï¼‰æœ€é©åŒ–ï½œNJRecalls
Apple M1é€Ÿã„ãã€ã£ã¦ã“ã¨ã§ã€ãã‚Œã¯ã„ã„ã¨ã—ã¦ã€ãã‚Œä»¥å¤–ã«ã‚‚è‰²ã€…Appleã®ç”¨é€”ã«æœ€é©åŒ–ã—ã¦ã„ã‚‹ç‚¹ãŒã‚ã‚‹ã‚‰ã—ã„ã¨ã„ã†ãƒ„ã‚¤ãƒ¼ãƒˆãŒã‚ã£ãŸã€‚ã¡ã‚‡ã£ã¨èªã‚“ã§ã¦ãƒžã‚¸ã§ï¼Ÿã¨ãªã£ãŸã®ã§ã“ã“ã«ãƒ¡ãƒ¢ã—ã¦ãŠã“ã†ã€‚ ç§ã¯ã¨ã„ã†ã¨ã“ã‚“ãªCPUãƒ¬ãƒ™ãƒ«ã®è©±ãŒåŠ¹ã„ã¦ãã‚‹ã‚ˆã†ãªãƒ—ãƒã‚°ãƒ©ãƒ ã¯æ›¸ã„ãŸã“ã¨ãªã„ã®ã§ã€èª¤è§£ã‚‚ã‚ã‚‹ã¨æ€ã†ã€‚ã‚†ã‚‹ã—ã¦ 1/ In case you were wondering: Apple's replacement for Intel processors turns out to work really, really well. Some otherwise skeptical techies are calling it "black magic". It runs Intel code extraordinarily well. â€” Robáµ‰Ê³áµ— GrahamðŸ˜·, provocateu
tarchan 2020/11/30
apple

cpu
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Apple M1ã«ã¤ã„ã¦ã®é¢ç™½ã„è¨˜äº‹ã‚’è¦‹ã‹ã‘ã¦ã€ä¹…ã—ã¶ã‚Šã«ãƒ¡ãƒ¢ãƒªãƒ¢ãƒ‡ãƒ«å±‹(?)ã®è¡€ãŒé¨’ã„ã ã®ã§ãƒ–ãƒã‚°ã‚’æ›¸ãã€‚ note.com å¼·ã„ãƒ¡ãƒ¢ãƒªãƒ¢ãƒ‡ãƒ« ç¾ä»£ã®CPUã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ã§ã¯ã€x86(64bit, 32bitã©ã¡ã‚‰ã‚‚)ãŒã€Œå¼·ã„ãƒ¡ãƒ¢ãƒªãƒ¢ãƒ‡ãƒ«ã€ã‚’æŽ¡ç”¨ã—ã¦ãŠã‚Šã€ãã‚Œä»¥å¤–ã®ãƒ¡ã‚¸ãƒ£ãƒ¼ãªCPUãŒã€Œå¼±ã„ãƒ¡ãƒ¢ãƒªãƒ¢ãƒ‡ãƒ«ã€ã‚’æŽ¡ç”¨ã—ã¦ã„ã‚‹ã€‚ã“ã®ã€Œå¼·ã„ãƒ¡ãƒ¢ãƒªãƒ¢ãƒ‡ãƒ«ã€ã€Œå¼±ã„ãƒ¡ãƒ¢ãƒªãƒ¢ãƒ‡ãƒ«ã€ã«ã¤ã„ã¦ã€ã¾ãšãŠã•ã‚‰ã„ã—ã¦ãŠã“ã†ã€‚ ä»¥ä¸‹ã®ã‚ˆã†ã«ã€2ã¤ã®å¤‰æ•°a, bã«å¯¾ã—ã¦ç•°ãªã‚‹CPUã‚³ã‚¢ãŒåŒæ™‚ã«ã‚¢ã‚¯ã‚»ã‚¹ã—ãŸã¨ã™ã‚‹ã€‚ int a = 0; int b = 0; CPU1: a = 1; b = 1; CPU2: int r1 = b; int r2 = a; (ä¸Šè¨˜ã¯Cè¨€èªžã«ä¼¼ãŸç–‘ä¼¼ã‚³ãƒ¼ãƒ‰ã‚’ç”¨ã„ã¦ã„ã‚‹ãŒã€å®Ÿéš›ã¯æ©Ÿæ¢°èªžå‘½ä»¤ã«ãªã£ã¦ã„ã‚‹ã¨è€ƒãˆã¦ã»ã—ã„ã€‚ã¤ã¾ã‚Šã€CPU1ã¯å¤‰æ•°a, bã®ç¤ºã™ãƒ¡ãƒ¢ãƒªã‚¢ãƒ‰ãƒ¬ã‚¹ã«å¯¾ã™ã‚‹ã‚¹ãƒˆã‚¢å‘½ä»¤ã‚’å®Ÿè¡Œã—ã¦
tarchan 2020/11/30
apple

cpu
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tarchan 2020/10/12
cpu

risc

history
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MSX turbo Rã«æŽ¡ç”¨ã•ã‚ŒãŸR800ã¨ã„ã†CPUã¯ã€Z80äº’æ›ã§10å€é€Ÿã¨è¨€ã‚ã‚ŒãŸã€å½“æ™‚ã®MSXãƒ¦ãƒ¼ã‚¶ãƒ¼ã«ã¨ã£ã¦ã¯å¤¢ã®ã‚ˆã†ãªCPUã§ã‚ã£ãŸã€‚è€ƒãˆã¦ã»ã—ã„ã€ä»Šä½¿ã£ã¦ã„ã‚‹ã‚ãªãŸã®ãƒ‘ã‚½ã‚³ãƒ³ã€10å€é€Ÿããªã‚Šã¾ã™ã¨è¨€ã‚ã‚Œã¦ãƒ¯ã‚¯ãƒ¯ã‚¯ã—ãªã„ãƒ¦ãƒ¼ã‚¶ãƒ¼ãŒã„ã‚‹ã ã‚ã†ã‹ã€‚å®Ÿéš›ã¯ç”»é¢æç”»ç”¨ã®VDPãŒå‰ä¸–ä»£ã®ã¾ã¾ã§ã€ç”»é¢è¡¨ç¤ºã«ã‚¦ã‚§ã‚¤ãƒˆãŒã‹ã‹ã‚Šã¾ãã£ãŸã®ã§ã€TurboRã§ã‚ã‚‰ã‚†ã‚‹ã‚½ãƒ•ãƒˆãŒ10å€é€Ÿãå‹•ã„ãŸã‚ã‘ã§ã¯ãªã‹ã£ãŸã®ã ã‘ã©ã€‚ ã‚‚ã¨ã‚‚ã¨ã€Z80ã¨ã„ã†CPUã¯ã€8ãƒ“ãƒƒãƒˆæ™‚ä»£ã«ãŠã„ã¦ã‚„ãŸã‚‰é«˜æ©Ÿèƒ½ãªCPUã ã£ãŸã€‚BCDã«ã‚ˆã‚‹åé€²æ•°è¨ˆç®—ã‚’ã‚µãƒãƒ¼ãƒˆã—ã€å¤§é‡ã®ãƒ¡ãƒ¢ãƒªé ˜åŸŸã‚’1å‘½ä»¤ã§è»¢é€ã™ã‚‹ãƒ–ãƒãƒƒã‚¯è»¢é€ãªã‚“ã¦ã®ã‚‚æ©Ÿæ¢°èªžã«å…¥ã£ã¦ãŸãã‚‰ã„ã§ã‚ã‚‹ã€‚ãã‚“ãªè¤‡é›‘ã§é«˜æ©Ÿèƒ½ãªCPUãªã®ã§ã€ã‚¯ãƒãƒƒã‚¯ã‚ãŸã‚Šã®é€Ÿåº¦ã¯ãã‚Œã»ã¨é«˜ããªã‹ã£ãŸã€‚å¤§æ¦‚ã®å‘½ä»¤ã«4ã‚¯ãƒãƒƒã‚¯ãã‚‰ã„ã‹ã‹ã‚‹ã—ã€‚Apple IIã‚„Commodore 64ãŒæŽ¡ç”¨ã—ã¦ã„ãŸ6502ã¨æ¯”ã¹
tarchan 2019/11/12
ï¼žApple IIã‚„Commodore 64ãŒæŽ¡ç”¨ã—ã¦ã„ãŸ6502ã¨æ¯”ã¹ã‚‹ã¨ã€ã‚¯ãƒãƒƒã‚¯ã‚ãŸã‚Šæ€§èƒ½ãŒã ã„ãŸã„åŠåˆ†ã ã£ãŸã¨è¨€ã‚ã‚Œã¦ã„ã‚‹ã€‚

cpu

msx
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AnTuTuã«ã‚ˆã£ã¦Apple A12X Bionicã®ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ã‚¹ã‚³ã‚¢ãŒå…¬é–‹ã€‚GPUæ€§èƒ½ãŒ31ä¸‡ç‚¹è¶…ãˆã§Androidå‹¢ã‚’ç·æŠœã - ReaMEIZU
tarchan 2018/11/07
apple

CPU
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tarchan 2016/09/29
apple

iphone

cpu
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tarchan 2016/04/05
apple

cpu
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