Lines Matching refs:rd
32 .macro senduart,rd,rx
33 strb \rd, [\rx, #UART_FIFO_OFFSET] @ TXDATA
36 .macro waituartcts,rd,rx
39 .macro waituarttxrdy,rd,rx
40 1001: ldr \rd, [\rx, #UART_SR_OFFSET]
41 ARM_BE8( rev \rd, \rd )
42 tst \rd, #UART_SR_TXEMPTY
46 .macro busyuart,rd,rx
47 1002: ldr \rd, [\rx, #UART_SR_OFFSET] @ get status register
48 ARM_BE8( rev \rd, \rd )
49 tst \rd, #UART_SR_TXFULL @