Assembler:Commands:CALL

command call size operand

Calls the given operand (address or function), jumps to the given operand then returns.

Note: A RET must be hit for a CALL to work properly, best to use JMPs if unsure.

Command Parameters

Parameter	Description
size OPTIONAL	The preferred size of the assembled address
operand	The address or symbol to call

Examples

call +1A   // Call from end of command to +1A (hex).

call 00123ABC   // Call the address.

call 0000123456ABCDEF   // Call the address.

call eax   // Call the value of eax.

call rax   // Call the value of rax.

call someSymbol   // Call the user defined symbol.

call someLabel   // Call the label.

call short someLabel   // Call the label with short byte code.

call long someLabel   // Call the label with full address.

call @b   // Call back the closest label

call @f   // Call forward the closest label

Running this script in 64 bit mode:

globalAlloc(memTest, 0x200)
label(testLbl)
memTest:
                          add [rax],al // db 00 00
@@:
                          add [rax],al
                          ret
call short @b
call short @f
                          add [rax],al
@@:
                          add [rax],al
                          ret
                          add [rax],al
call short -8
call short +2
                          add [rax],al
testLbl:
                          add [rax],al
                          ret
call 01160002
                          add [rax],al
call rax
                          add [rax],al
call memTest
                          add [rax],al
call testLbl
                          add [rax],al
call short testLbl
                          add [rax],al
call long testLbl
                          add [rax],al
db 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90

See also

• Assembler
• Auto Assembler
• Assembler Commands

External links

• wikipedia.org/wiki/X86_instruction_listings
• asmpedia.org