📄 test.s
字号:
.include "ml675001.s"
.text
.global _start
_start:
@ Initialize UART
ldr r0,=0x7
ldr r1,=UARTFCR
str r0,[r1]
ldr r0,=0x83
ldr r1,=UARTLCR
str r0,[r1]
ldr r0,=0x21 @ 115200
ldr r1,=UARTDLL
str r0,[r1]
ldr r0,=0x0
ldr r1,=UARTDLM
str r0,[r1]
ldr r0,=0x3 @ UARTLCR_LEN8 | UARTLCR_PDIS | UARTLCR_STB1
ldr r1,=UARTLCR
str r0,[r1]
ldr r0,=GPCTL_UART
ldr r1,=GPCTL
str r0,[r1]
@ Send character
ldr r0,=49
ldr r1,=0xB7B00000
str r0,[r1]
halt
@l:
@ b l
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