import platform.pch.pic as pic
import su8250
import t, c


# 串口初始化
def init():
    # 初始化COM1端口
    su8250.init(su8250.COM1_PORT)
    # 启用COM1中断（IRQ4）
    pic.clearMask(4)

# 发送一个字符到COM1
def putc(cr: t.CChar):
    su8250.putchar(su8250.COM1_PORT, cr)

def putchar(cr: t.CChar):
    su8250.putchar(su8250.COM1_PORT, cr)

# 从COM1读取一个字符
def getchar() -> t.CChar:
    return su8250.getchar(su8250.COM1_PORT)

# 发送一个字符串到COM1
def puts(s: str):
    # 逐个字符发送，直接复用putchar的逻辑
    for i in s:
        putchar(i)

# 检查COM1是否有数据可读
def isDataAvailable() -> t.CInt:
    return su8250.isDataAvailable(su8250.COM1_PORT)

# 检查COM1发送缓冲区是否为空
def isTransmitEmpty() -> t.CInt:
    return su8250.isTransmitEmpty(su8250.COM1_PORT)

# 发送32位十六进制值到COM1
def put_hex32(value: t.CUInt32T):
    hex_digits: t.CArray[t.CChar, None] = ["0123456789ABCDEF"]
    buffer: t.CArray[t.CChar, 9]
    for i in range(7, -1, -1):
        buffer[i] = hex_digits[value & 0xF]
        value >>= 4
    buffer[8] = '\0'
    puts(buffer)