waitcntΒΆ
Counts of outstanding instructions to wait for.
The bits of this operand have the following meaning:
Bits Description 3:0 VM_CNT: vector memory operations count, lower bits. 6:4 EXP_CNT: export count. 11:8 LGKM_CNT: LDS, GDS, Constant and Message count. 15:14 VM_CNT: vector memory operations count, upper bits.
This operand may be specified as a positive 16-bit integer_number or as a combination of the following symbolic helpers:
Syntax Description vmcnt(<N>) VM_CNT value. N must not exceed the largest VM_CNT value. expcnt(<N>) EXP_CNT value. N must not exceed the largest EXP_CNT value. lgkmcnt(<N>) LGKM_CNT value. N must not exceed the largest LGKM_CNT value. vmcnt_sat(<N>) VM_CNT value computed as min(N, the largest VM_CNT value). expcnt_sat(<N>) EXP_CNT value computed as min(N, the largest EXP_CNT value). lgkmcnt_sat(<N>) LGKM_CNT value computed as min(N, the largest LGKM_CNT value).
These helpers may be specified in any order. Ampersands and commas may be used as optional separators.
N is either an integer number or an absolute expression.
Examples:
s_waitcnt 0
s_waitcnt vmcnt(1)
s_waitcnt expcnt(2) lgkmcnt(3)
s_waitcnt vmcnt(1) expcnt(2) lgkmcnt(3)
s_waitcnt vmcnt(1), expcnt(2), lgkmcnt(3)
s_waitcnt vmcnt(1) & lgkmcnt_sat(100) & expcnt(2)