Made to Order Software Corporation - compute

XOr

Alexis Wilke — Tue, 12 Jan 2010 06:37:49 +0000

SWF Action

Action Category:

Logical and Bitwise

Action Details:

Action Identifier:

Action Structure:

<n.a.>

Action Length:

0 byte(s)

Action Stack:

pop 2 (i), push 1 (i)

Action Operation:

i1 := pop();
i2 := pop();
r := i2 ^ i1;
push(r);

Action Flash Version:

See Also:

And

Logical And

Logical Not

Logical Or

Pop two integers, compute the bitwise XOR and push the result back on the stack.

This operator is used to generate a bitwise NOT with an immediate value of -1. (There is not bitwise NOT action.)

String Equal

Alexis Wilke — Fri, 08 Jan 2010 11:38:25 +0000

SWF Action

Action Category:

Comparisons

Action Details:

Action Identifier:

Action Structure:

<n.a.>

Action Length:

0 byte(s)

Action Stack:

pop 2 (s), push 1 (b)

Action Operation:

s₁ := pop();
s₂ := pop();
r := s₂ == s₁;
push(r);

Action Flash Version:

See Also:

Equal

Equal (typed)

Strict Equal

Logical Not

Pops two strings, compute the equality and put the Boolean result back on the stack.

IMPORTANT

Ord (multi-byte)

Alexis Wilke — Sun, 03 Jan 2010 04:20:45 +0000

SWF Action

Action Category:

String and Characters

Action Details:

(multi-byte)

Action Identifier:

Action Structure:

<n.a.>

Action Length:

0 byte(s)

Action Stack:

pop 1 (s), push 1 (i)

Action Operation:

s₁ := pop();
r := s₁[0];
push(r);

Action Flash Version:

See Also:

Chr

Chr (multi-byte)

Ord

SubString

SubString (multi-byte)

Pops one string, compute the multi-byte value of its first character and put it on the stack.

In Flash, multi-byte characters are limited to 16 bits (UCS-2).

Ord

Alexis Wilke — Sun, 03 Jan 2010 03:58:25 +0000

SWF Action

Action Category:

String and Characters

Action Details:

Action Identifier:

Action Structure:

<n.a.>

Action Length:

0 byte(s)

Action Stack:

pop 1 (s), push 1 (i)

Action Operation:

s₁ := pop();
r = s₁[0];
push(r);

Action Flash Version:

See Also:

Chr

Chr (multi-byte)

Ord (multi-byte)

SubString

SubString (multi-byte)

Pop one string, compute the ASCII value of its first character and put it back on the stack.

This function does not take UTF-8 in account. In other words, it can be used to parse a string byte per byte. To get the UTF-8 value of characters, use the Ord (multi-byte) instead.

Or

Alexis Wilke — Sun, 03 Jan 2010 03:29:36 +0000

SWF Action

Action Category:

Logical and Bitwise

Action Details:

Action Identifier:

Action Structure:

<n.a.>

Action Length:

0 byte(s)

Action Stack:

pop 2 (i), push 1 (i)

Action Operation:

i₁ := pop();
i₂ := pop();
r := i₂ | i₁;
push(r);

Action Flash Version:

See Also:

And

Logical And

Logical Not

Logical Or

XOr

Pop two integers, compute the bitwise OR and push the result back on the stack.

Modulo

Alexis Wilke — Thu, 31 Dec 2009 07:03:16 +0000

SWF Action

Action Category:

Arithmetic

Action Details:

Action Identifier:

Action Structure:

<n.a.>

Action Length:

0 byte(s)

Action Stack:

pop 2 (n), push 1 (n)

Action Operation:

n₁ := pop();
n₂ := pop();
if(is_integer(n₁) && is_integer(n₂)) {
r := i₂ % i₁;
}
else {
r := f2 % f1; // in C it would be fmod(f2, f1)
}
push(r);

Action Flash Version:

See Also:

Divide

Multiply

Pop two numbers, compute the modulo and push the result back on the stack.

Note that the operator can compute a floating point modulo (in case at least one of the parameters is a floating point.)

Logical Or

Alexis Wilke — Thu, 31 Dec 2009 06:27:59 +0000

SWF Action

Action Category:

Logical and Bitwise

Action Details:

Action Identifier:

Action Structure:

<n.a.>

Action Length:

0 byte(s)

Action Stack:

pop 2 (b), push 1 (b)

Action Operation:

b₁ := pop();
b₂ := pop();
r := b₂ || b_1;
push(r);

Action Flash Version:

See Also:

And

Logical And

Logical Not

XOr

Pop two values, compute the Logical OR and put the Boolean result back on the stack.

Logical Not

Alexis Wilke — Thu, 31 Dec 2009 06:18:41 +0000

SWF Action

Action Category:

Logical and Bitwise

Action Details:

Action Identifier:

Action Structure:

<n.a.>

Action Length:

0 byte(s)

Action Stack:

pop 1 (b), push 1 (b)

Action Operation:

b₁ := pop();
r := ! b₁;
push(r);

Action Flash Version:

See Also:

And

Logical And

Logical Or

XOr

Pop one value, compute the Logical NOT and put the result back on the stack.

Logical And

Alexis Wilke — Thu, 31 Dec 2009 06:08:54 +0000

SWF Action

Action Category:

Logical and Bitwise

Action Details:

Action Identifier:

Action Structure:

<n.a.>

Action Length:

0 byte(s)

Action Stack:

pop 2 (b), push 1 (b)

Action Operation:

b₁ := pop();
b₂ := pop();
r := b₂ && b₁;
push(r);

Action Flash Version:

See Also:

And

Logical Not

Logical Or

XOr

Pop two values, compute the Logical AND and put the Boolean result back on the stack.

Less Than (typed)

Alexis Wilke — Thu, 31 Dec 2009 05:01:51 +0000

SWF Action

Action Category:

Comparisons

Action Details:

(typed)

Action Identifier:

Action Structure:

<n.a.>

Action Length:

0 byte(s)

Action Stack:

pop 2 (a), push 1 (b)

Action Operation:

a₁ := pop();
a₂ := pop();
if(is_int(a₁) && is_int(a₂)) {
i₁ := (int)a₁;
i₂ := (int)a₂;
r := i₂ < i₁; // compare integers
}
else if(is_numeric(a₁) && is_numeric(a₂)) {
f₁ := (float)a₁;
f₂ := (float)a₂;
r := f₂ < f₁; // compare floating points
}
else {
s₁ := (string)a₁;

s₂ := (string)a₂;
r := s₂ < s₁; // compare characters, case sensitive
}
push(r);

Action Flash Version:

See Also:

Equal

Equal (typed)

Greater Than (typed)

Less Than

Strict Equal

String Equal

String Greater Than

String Less Than

Logical Not

Pop two integers, floats, or strings, compute whether they are ordered from smaller to larger and push the Boolean result back on the stack.

It is possible to test whether two values are Greater Than or Equal using the Logical Not operator on the result of Less Than. The Greater Than (typed) operator is used to support the other two comparison operators (thus eliminating the need to swap the top of the stack as in version 4.)