assembly

问题 im trying to implement this java code into MIPS assembly language and i am quite confused. this is what i have so far: java code: for (int c = 1; c <= rows; c++) { number = highestValue; // reset number to the highest value from previous line for (i = 0; i < c; i++) { System.out.print(++number + " "); } highestValue = number; // setting the highest value in line assembly code: .text # tells the program where the code begins move $t0, $zero # t0=0 move $t1, $zero # this will be similar to "int

问题 Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 days ago . There is an example: mov edi, dword ptr [0x7fc70000] add edi, 0x11 sub edi, 0x33F0B753 After Z3 simplification I have got (memory 0x7FC70000 is symbolized): bvadd (_ bv3423553726 32) MEM_0x7FC70000 Now I need to convert Z3 into ASM to get result like this: mov edi, 0xCC0F48BE add edi,

问题 I have a code that shows a PCX using assembly By its width Example image 320x200 x=0, y=0 But if X ( StartPictX ) and Y ( StartPictY ) are unequal to 0, it ruins the picture. And I need to fix that... The original code: ;-------------------------------------- ; Load and show file *.PCX 320x200x256 ; ;-------------------------------------- IDEAL MODEL large P386 MACRO SHOWPCX StartX, StartY, fName mov ax, [StartX] mov [Point_X], ax mov ax, [StartY] mov [Point_Y], ax mov dx, offset fName call

问题 Assume $t2= 0x55555550 , then executing the following instruction: andi $t2, $t2, -1 $t2 becomes 0x0005550 This is confirmed by the MIPS emulator 1 However, it is not what I expected. I think the answer should be 0x55555550 & 0xFFFFFFFF = 0x55555550. I think the constant -1 was sign extended to 0xFFFFFFFF before the and logic. But it appears that the answer was 0x55555550 & 0x0000FFFF Why -1 is sign extended to 0x0000FFFF instead of 0xFFFFFFFF Footnote 1: Editor's note: MARS with "extended

问题 I've been working through a project book as an introduction to MIPS and I've come across a problem. One of the lines of code in the book is lb $t3, ($t2) . I have no clue what the parentheses do because prior to this, I haven't seen them used, and the book just doesn't mention them to begin with. Why wouldn't the code just be lb $t3, $t2 ? 回答1: MIPS addressing-mode syntax is constant($reg) . ($t2) is allowed as a special case short-hand for 0($t2) . The same instruction could do lb $t3, 13(

问题 I have two files, main.s and test.s where test.s looks like this: test: add a1,a2,a2 ...and main.s looks like this: main: call test (very senseless examples). How can I include test in main? I am using gcc like this: gcc -o main main.c But I have no idea how I can use test in there...any help? 回答1: You can include the file just as you would with anything else in GCC: #include"test.S" Were you using NASM you would use: %include "test.s" 来源： https://stackoverflow.com/questions/39457263/include

问题 I have two files, main.s and test.s where test.s looks like this: test: add a1,a2,a2 ...and main.s looks like this: main: call test (very senseless examples). How can I include test in main? I am using gcc like this: gcc -o main main.c But I have no idea how I can use test in there...any help? 回答1: You can include the file just as you would with anything else in GCC: #include"test.S" Were you using NASM you would use: %include "test.s" 来源： https://stackoverflow.com/questions/39457263/include

问题 I have two files, main.s and test.s where test.s looks like this: test: add a1,a2,a2 ...and main.s looks like this: main: call test (very senseless examples). How can I include test in main? I am using gcc like this: gcc -o main main.c But I have no idea how I can use test in there...any help? 回答1: You can include the file just as you would with anything else in GCC: #include"test.S" Were you using NASM you would use: %include "test.s" 来源： https://stackoverflow.com/questions/39457263/include

问题 I have two files, main.s and test.s where test.s looks like this: test: add a1,a2,a2 ...and main.s looks like this: main: call test (very senseless examples). How can I include test in main? I am using gcc like this: gcc -o main main.c But I have no idea how I can use test in there...any help? 回答1: You can include the file just as you would with anything else in GCC: #include"test.S" Were you using NASM you would use: %include "test.s" 来源： https://stackoverflow.com/questions/39457263/include

问题 I am currently reading ARM Cortex M0+ User Guide on ARM website shown below http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0662b/CHDBIBGJ.html In User Manual, following paragraph is mentioned: Interruptible-restartable instructions The interruptible-restartable instructions are LDM, STM, PUSH, POP and, in 32-cycle multiplier implementations, MULS. When an interrupt occurs during the execution of one of these instructions, the processor abandons execution of the instruction.