sendmsg_rtn

An 8-bit value in the instruction to encode the message type.

This operand may be specified as one of the following:

• An integer_number or an absolute_expression. The value must be in the range 0..0xFFFF.

• A sendmsg value described below.

Sendmsg Value Syntax	Description
sendmsg(MSG_RTN_GET_DOORBELL)	Get doorbell ID.
sendmsg(MSG_RTN_GET_DDID)	Get Draw/Dispatch ID.
sendmsg(MSG_RTN_GET_TMA)	Get TMA value.
sendmsg(MSG_RTN_GET_TBA)	Get TBA value.
sendmsg(MSG_RTN_GET_REALTIME)	Get REALTIME value.
sendmsg(MSG_RTN_SAVE_WAVE)	Report that this wave is ready to be context-saved.

Examples:

s_sendmsg_rtn_b32 s0, 132
s_sendmsg_rtn_b32 s0, sendmsg(MSG_GET_REALTIME)