In my C program, I am trying to convert .asm code to pseudo-machine code. Assembly file used: ORG 0x10 start WB 0x05 ; write 0x05 to MBR WM 0x400 ; write data on MBR to memory at address 0x400 WB 0x03 ; write 0x03 to MBR WM 0x401 ; write data on MBR to memory at address 0x401 RM 0x400 ; read address 0x400, store data to MBR WACC ; write MBR to ACC (via BUS) RM 0x401 ; read data at memory address 0x401, store to MBR ADD ; add ACC to MBR (through BUS) RACC ; read ACC, store to MBR WM 0x402 ; write data on MBR to memory ad ..read more

#include <stdio.h> #include <stdlib.h> #include <systemd/sd-device.h> int main() { sd_device *device; sd_device_enumerator *enumerator =NULL; const char **subsystem =NULL; // *subsystem = malloc(sizeof(char *)); *subsystem = malloc(500); if (subsystem == NULL) printf("ohh"); // Create a device enumerator int r = sd_device_enumerator_new(&enumerator); if (r< 0) printf("unable to create instance"); printf("%d\n",r); //sd_device_enumerator_scan(enumerator); for (device = sd_device_enumerator_get_device_f ..read more

I am trying to implement an n bit adder in Systemc. However, I am quite new to the language and I think I need a generic parameter to instantiate n-1 full and one half adder. I do not find anything regarding this online. Can someone help me ..read more

explain the question and input format please explain the question briefly.MIN To MAX You are given an array ? A of size ? N. Let ? M be the minimum value present in the array initially. In one operation, you can choose an element ? ? A i ​ ( 1 ≤ ? ≤ ? ) (1≤i≤N) and an integer ? X ( 1 ≤ ? ≤ 100 ) (1≤X≤100), and set ? ? ? A i ​ =X. Determine the minimum number of operations required to make ? M the maximum value in the array ? A. Input Format The first line of input will contain a single integer ? T, denoting the number of test cases. Each test case consists of multiple lines of input. The first ..read more

I am attempting to find the median from an array of data in c, every time I attempt to though, I get zero even though there is only one zero in the array, the array is sorted before being imputed to the function. the array data is valid as I can calculate the average and the sum correctly. Here is my function: //The array is sorted prior to this //count is the amount of values in the array double median(int64_t *array) { double q2; int64_t pos, pos1; if (count % 2 == 0) { //even pos = count / 2; pos1 = (count ..read more

I asked AI (Claude), and it told me it is UB. Is that real? #include <stdio.h> struct BitFieldStruct { unsigned int a : 5; unsigned int : 3; // 3位填充位 unsigned int b : 6; unsigned int c : 10; }; int main() { struct BitFieldStruct s1 = {10, 20, 300}; struct BitFieldStruct s2; printf("s1.a = %d, s1.b = %d, s1.c = %d\n", s1.a, s1.b, s1.c); s2 = s1; // UB printf("s2.a = %d, s2.b = %d, s2.c = %d\n", s2.a, s2.b, s2.c); // may not same as s1 return 0; } I searched the internet and was still confused. Claude told me that it is according C99(6.7 ..read more

The chip I use is STM32G473VC, which is configured with 7 channel ADC and SPI slave station When the SPI DMA transmission is not started, the ADC works fine. However, when the SPI DMA transfer is started, the ADC occasionally reads a value of 0. The transmission cycle of the SPI master station is 8ms. SPI needs to transmit important data, so SPI has a higher priority than ADC. Whether I use the ADC DMA, interrupt, or direct poll conversion to read the register, it is possible for this 0 value to occur. What might be the cause of this ..read more

I am trying to use the Cell Updates Per Second (CUPS) metric to measure the performance of the sequence alignment algorithm. I saw the metric being used in several papers but none of them have explained how it is really being computed. It is essentially processing the cells in a 2D matrix. What I tried is as follows: gettimeofday(&tv1, NULL); alignment_score = alignment(seq1, seq2, seq1_len, seq2_len); gettimeofday(&tv2, NULL); double elapsed_time = (double) (tv2.tv_usec - tv1.tv_usec) / 1000000 +(double) (tv2.tv_sec - tv1.tv_sec); printf ("elapsed time = %f seconds\n",elapsed_time ..read more

When compiling with clang, I noticed that the order of the warning output was different for each compilation. For example, The output was as follows foo.c:473:20: warning: implicit conversion loses integer precision: 'long' to 'short' [-Wimplicit-int-conversion] b2 = s2 ; ~ ^~~~~~~~~ foo.c:360:14: warning: variable 's1' set but not used [-Wunused-but-set-variable] long s1 = 0 ; ^ foo.:353:21: warning: variable 'l2' set but not used [-Wunused-but-set-variable] long l2 = 0 ; ^ foo.c:352:21: warning: varia ..read more

I'm a new bike in C language, after some simple examples and best practices of how to use regular expressions in ANSI C. I have simple test, want to get date in an description string bellow "{d(02/01/2019)}-call Ms.ha check this case". I mean want to get "02/01/2019" this is my code #include <stdint.h> #include <stdio.h> #include <stdlib.h> #include <regex.h> #define ARRAY_SIZE(arr) (sizeof((arr)) / sizeof((arr)[0])) // initialize target string and regular expression string int main(int argc, char **argv) { regex_t preg; char *string = "{d(02/01/2019 ..read more