Hi All. How can I declare an array in assembler?

[KnarfB]

ChatGPT says:

Q: How can I declare an array in ARM Cortex-M assembler?

A: To declare an array in ARM Cortex-M assembler, you can use the DCB (Define Byte), DCD (Define Doubleword), and DCF (Define Floating-Point) directives, depending on the type of data that you want to store in the array.

Here are examples of how to use these directives to declare arrays of different types:

1. Declaring an array of bytes:

assembly

my_array DCB 1, 2, 3, 4, 5 ; Declares an array of 5 bytes

1. Declaring an array of 32-bit words:

assembly

my_array DCD 0x12345678, 0xdeadbeef, 0x87654321 ; Declares an array of 3 32-bit words

1. Declaring an array of 64-bit doublewords:

assembly

my_array DCD 0x123456789abcdef0, 0xdeadbeef12345678 ; Declares an array of 2 64-bit doublewords

1. Declaring an array of floating-point numbers:

assembly

my_array DCF 3.14, 2.718, 1.414 ; Declares an array of 3 single-precision floating-point numbers

You can access individual elements of the array using the syntax:

assembly

my_array[index]

[AScha.3]

https://lmgtfy.app/?q=declare+an+array+in+assembly+language

[waclawek.jan · Accepted solution]

With asm, often the easiest way is to look at how the compiler does it, i.e. have compiler generate asm from C source (in gcc, using -C).

Jw

[VAvag.1]

Thank You for response!

[VAvag.1]

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[VAvag.1]

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