Lines Matching refs:tx_ring_in
183 tx_ring_in: .byte 0 label
220 mov tx_ring_in, a
446 subb a, tx_ring_in ; out-1-in = 255 - (in-out)
451 mov a, tx_ring_in
753 mov dpl1, tx_ring_in
757 inc dpl1 ; target = tx_ring_in+1
763 inc tx_ring_in ; tx_ring_in++
790 ;; tx_ring_in, tx_ring_out, rx_ring_in, rx_ring_out
803 mov a, tx_ring_in
870 mov a, tx_ring_in
893 subb a, tx_ring_in
1103 ;; tx_ring_in+1 is where the next input byte will go
1105 ;; if tx_ring_in == tx_ring_out, theres no work to do
1106 ;; there are (tx_ring_in - tx_ring_out) chars to be written
1108 ;; cannot inc if tx_ring_in+1 == tx_ring_out
1109 ;; write [tx_ring_in+1] then tx_ring_in++
1110 ;; if (tx_ring_in+1 == tx_ring_out), overflow
1111 ;; else tx_ring_in++