operand

Operand size prefix in 16-bit mode

由 佐手、 提交于 2019-11-29 07:03:05
I'm trying to understand GAS's behavior of .code16. From the manual, it seems in 16-bit section, for 32-bit operands or instructions, a 66H operand override prefix will be produced for the instruction encoding. Does that mean .code16 movw %eax, %ebx is legal in such mode? Then the code cannot run on 16-bit processor? Dirk Wolfgang Glomp These are legal instructions for 80386+. Starting with the 80386 we can use operandsize- and addresssize- override prefixes. Those prefixes can be used in combination with the 16 bit address mode and with the 32 bit address mode. Additional it can be used with

MySQL Error “Operand should contain 1 column” [duplicate]

由 岁酱吖の 提交于 2019-11-29 06:37:17
This question already has an answer here: Operand Should Contain 1 Column - MySQL NOT IN 2 answers I could find a lot of similar questions but no real solution for my problem. My SQL query: UPDATE ADRESSEN SET EMAIL = 0 WHERE ID = (SELECT ID, COUNT(ID) AS COUNTER FROM EIGENSCHAFTEN WHERE Kategorie = "BOUNCE" GROUP BY ID HAVING COUNTER = 1) The error code I receive is #1241 - Operand should contain 1 column(s) If I just use the query in the parentheses it works and the result is ID | COUNTER 0002159 | 1 Where is my error? Thanks a lot for your help. The issue is your inner query is returning

Integer division & modulo operation with negative operands in Python

由 泄露秘密 提交于 2019-11-27 15:40:50
Questions arise when I type in these expressions to Python 3.3.0 -10 // 3 # -4 -10 % 3 # 2 10 // -3 # -4 10 % -3 # -2 -10 // -3 # 3 It appears as though it takes the approximate floating point (-3.33)? and rounds down either way in integer division but in the modulo operation it does something totally different. It seems like it returns the remainder +/-1 and only switches the sign depending on where the negative operand is. I am utterly confused, even after looking over other answers on this site! I hope someone can clearly explain this too me! The book says hint: recall this magic formula a

Integer division & modulo operation with negative operands in Python

由 无人久伴 提交于 2019-11-27 03:58:27
问题 Questions arise when I type in these expressions to Python 3.3.0 -10 // 3 # -4 -10 % 3 # 2 10 // -3 # -4 10 % -3 # -2 -10 // -3 # 3 It appears as though it takes the approximate floating point (-3.33)? and rounds down either way in integer division but in the modulo operation it does something totally different. It seems like it returns the remainder +/-1 and only switches the sign depending on where the negative operand is. I am utterly confused, even after looking over other answers on this

TypeError: unsupported operand type(s) for /: 'str' and 'str'

由 旧时模样 提交于 2019-11-26 06:47:10
问题 name = input(\'Enter name here:\') pyc = input(\'enter pyc :\') tpy = input(\'enter tpy:\') percent = (pyc / tpy) * 100; print (percent) input(\'press enter to quit\') whenever i run this program i get this TypeError: unsupported operand type(s) for /: \'str\' and \'str\' what can i do to divide pyc by tpy? 回答1: By turning them into integers instead: percent = (int(pyc) / int(tpy)) * 100; In python 3, the input() function returns a string. Always. This is a change from Python 2; the raw_input
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