Lines Matching refs:rd
12 .macro senduart,rd,rx
13 strb \rd, [\rx, #UART_TX << UART_SHIFT]
16 .macro busyuart,rd,rx
17 1002: ldrb \rd, [\rx, #UART_LSR << UART_SHIFT]
18 and \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE
19 teq \rd, #UART_LSR_TEMT | UART_LSR_THRE
23 .macro waituart,rd,rx
25 1001: ldrb \rd, [\rx, #UART_MSR << UART_SHIFT]
26 tst \rd, #UART_MSR_CTS