nsdsp_debug_read_reg

This function reads the content of a CPU register.

Syntax

unsigned int nsdsp_debug_read_reg(
        nsdsp_session_t   session,
        unsigned int      reg
);

Parameters

session - a reference to the Debug Session Object obtained with nsdsp_session_program_for_debug or nsdsp_start_debug_session function

reg - one of the constants listed in the nsdspif.h file. These constants are device specific and are named according to the following table:

where XXXX is the name of the register.

Return

The function returns the size of the register in bytes, or zero in case of error.

Notes

This instruction only queues a command. The command will be sent to NSDSP when you queue enough commands to fill the buffer or when you call nsdsp_session_flush.

Once the data arrives, you can retrieve the value of the register with nsdsp_debug_fetch_word function.

If you are retrieving floating point registers, instead of nsdsp_debug_fetch_word function, call nsdsp_debug_fetch_float or nsdsp_debug_fetch_double

Minimum library version - 163