computer-science

Does sw and lw in MIPS store a value below or above the stack pointer?

二次信任 提交于 2021-01-29 07:43:40
问题 My professor gave a video that looks like this: In the lower right, he wrote $ra at location 124 while the $sp is at 128 which implies that the first sw $ra, 4($sp) instruction stores the $ra value at a location 4 bytes less than the $sp . But my book does it differently: and The image implies that the lw instruction stores it at locations larger, more positive numbers than the $sp . So which is right? Does lw and sw offset numbers refer to numbers higher or lower than the $sp ? 回答1: You are

WiFi Password with Command Prompt windows 8.1

冷暖自知 提交于 2021-01-28 12:23:53
问题 I used this command to get connected WiFi password: netsh wlan show profile name="my profile name" key=clear but it doesn't show security key, it says: key content = absent Is there still any way to get it? why is it absent? 回答1: From Help netsh wlan show profile /? If key is set to "clear" and the caller is local administrator, the key will be shown in plain text. 回答2: You can use this batch file to get all of the ssid's and passwords from your system. Copy and paste the code below into

Error Code: UnboundLocalError: local variable referenced before assignment

一曲冷凌霜 提交于 2021-01-28 07:38:01
问题 It seems that many get this error but each situation is different. Ive search somewhat long, but i dont understand how to use it for my situation.. I tried to get live help even... My code: i = 0 def sort(a): b = len(a) if(i == b): print (a) elif(b == 0): print ('Error. No value detected...') elif(b == 1): print (a) elif(a[i]>a[i+1]): a[i], a[i+1] = a[i+1], a[i] i = i + 1 print(a) sort(a) Error Code: Traceback (most recent call last): File "<string>", line 301, in runcode File "<interactive

static char inpbuf[MAXBUF], tokbuf[2 * MAXBUF], *ptr = inpbuf, *tok = tokbuf;

独自空忆成欢 提交于 2021-01-07 02:47:45
问题 static char inpbuf[MAXBUF], tokbuf[2 * MAXBUF], *ptr = inpbuf, *tok = tokbuf; The array inpbuf is intended to store the user typed command and its arguments. The array tokbuf is intended to store each extracted tokens from inpbuf , such that, each element in the array char *arg[MAXARG + 1]; (in proc_line.c) is properly assigned using the information in tokbuf in order later on to invoke execvp system call in runcommand.c. I wanted to get rid of tokbuf and make the program still work. I

static char inpbuf[MAXBUF], tokbuf[2 * MAXBUF], *ptr = inpbuf, *tok = tokbuf;

馋奶兔 提交于 2021-01-07 02:45:19
问题 static char inpbuf[MAXBUF], tokbuf[2 * MAXBUF], *ptr = inpbuf, *tok = tokbuf; The array inpbuf is intended to store the user typed command and its arguments. The array tokbuf is intended to store each extracted tokens from inpbuf , such that, each element in the array char *arg[MAXARG + 1]; (in proc_line.c) is properly assigned using the information in tokbuf in order later on to invoke execvp system call in runcommand.c. I wanted to get rid of tokbuf and make the program still work. I

Finding all subsets of a set of MultiSets made of elements from a single MultiSet (without replacement)

做~自己de王妃 提交于 2020-12-26 04:28:28
问题 Two recent questions by the same author 1 are generally solved by the same technique. This feels to me like it would be a studied and perhaps well solved problem. I would like to know what it might be called and where to find more information about it, assuming it is a well-known problem This is my own phrasing of the question: If we have a Set, M , of MultiSets 2 , M_1 - M_n made up of elements of Set S , and we have a MultiSet of components, C , also drawn from S , how do we find all

Finding all subsets of a set of MultiSets made of elements from a single MultiSet (without replacement)

吃可爱长大的小学妹 提交于 2020-12-26 04:27:19
问题 Two recent questions by the same author 1 are generally solved by the same technique. This feels to me like it would be a studied and perhaps well solved problem. I would like to know what it might be called and where to find more information about it, assuming it is a well-known problem This is my own phrasing of the question: If we have a Set, M , of MultiSets 2 , M_1 - M_n made up of elements of Set S , and we have a MultiSet of components, C , also drawn from S , how do we find all

What do we mean by Byte array? [closed]

徘徊边缘 提交于 2020-11-30 02:12:04
问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 10 years ago . Could someone please explain, I do not exactly get the concept. What is a Byte Array? Where and when we use it in applications/programs? what are the advantages and disadvantages of using a byte array? 回答1: A

What do we mean by Byte array? [closed]

柔情痞子 提交于 2020-11-30 02:11:49
问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 10 years ago . Could someone please explain, I do not exactly get the concept. What is a Byte Array? Where and when we use it in applications/programs? what are the advantages and disadvantages of using a byte array? 回答1: A