HelenOS sources
CLK_PORT1 99 kernel/arch/amd64/src/drivers/i8254.c pio_write_8(CLK_PORT1, (CLK_CONST / HZ) & 0xf);
CLK_PORT1 100 kernel/arch/amd64/src/drivers/i8254.c pio_write_8(CLK_PORT1, (CLK_CONST / HZ) >> 8);
CLK_PORT1 111 kernel/arch/amd64/src/drivers/i8254.c pio_write_8(CLK_PORT1, 0xff);
CLK_PORT1 112 kernel/arch/amd64/src/drivers/i8254.c pio_write_8(CLK_PORT1, 0xff);
CLK_PORT1 121 kernel/arch/amd64/src/drivers/i8254.c not_ok = (uint8_t) ((pio_read_8(CLK_PORT1) >> 6) & 1);
CLK_PORT1 122 kernel/arch/amd64/src/drivers/i8254.c t1 = pio_read_8(CLK_PORT1);
CLK_PORT1 123 kernel/arch/amd64/src/drivers/i8254.c t1 |= pio_read_8(CLK_PORT1) << 8;
CLK_PORT1 129 kernel/arch/amd64/src/drivers/i8254.c t2 = pio_read_8(CLK_PORT1);
CLK_PORT1 130 kernel/arch/amd64/src/drivers/i8254.c t2 |= pio_read_8(CLK_PORT1) << 8;
CLK_PORT1 136 kernel/arch/amd64/src/drivers/i8254.c uint32_t o1 = pio_read_8(CLK_PORT1);
CLK_PORT1 137 kernel/arch/amd64/src/drivers/i8254.c o1 |= pio_read_8(CLK_PORT1) << 8;
CLK_PORT1 142 kernel/arch/amd64/src/drivers/i8254.c uint32_t o2 = pio_read_8(CLK_PORT1);
CLK_PORT1 143 kernel/arch/amd64/src/drivers/i8254.c o2 |= pio_read_8(CLK_PORT1) << 8;
CLK_PORT1 99 kernel/arch/ia32/src/drivers/i8254.c pio_write_8(CLK_PORT1, (CLK_CONST / HZ) & 0xf);
CLK_PORT1 100 kernel/arch/ia32/src/drivers/i8254.c pio_write_8(CLK_PORT1, (CLK_CONST / HZ) >> 8);
CLK_PORT1 111 kernel/arch/ia32/src/drivers/i8254.c pio_write_8(CLK_PORT1, 0xff);
CLK_PORT1 112 kernel/arch/ia32/src/drivers/i8254.c pio_write_8(CLK_PORT1, 0xff);
CLK_PORT1 121 kernel/arch/ia32/src/drivers/i8254.c not_ok = (uint8_t) ((pio_read_8(CLK_PORT1) >> 6) & 1);
CLK_PORT1 122 kernel/arch/ia32/src/drivers/i8254.c t1 = pio_read_8(CLK_PORT1);
CLK_PORT1 123 kernel/arch/ia32/src/drivers/i8254.c t1 |= pio_read_8(CLK_PORT1) << 8;
CLK_PORT1 129 kernel/arch/ia32/src/drivers/i8254.c t2 = pio_read_8(CLK_PORT1);
CLK_PORT1 130 kernel/arch/ia32/src/drivers/i8254.c t2 |= pio_read_8(CLK_PORT1) << 8;
CLK_PORT1 136 kernel/arch/ia32/src/drivers/i8254.c uint32_t o1 = pio_read_8(CLK_PORT1);
CLK_PORT1 137 kernel/arch/ia32/src/drivers/i8254.c o1 |= pio_read_8(CLK_PORT1) << 8;
CLK_PORT1 142 kernel/arch/ia32/src/drivers/i8254.c uint32_t o2 = pio_read_8(CLK_PORT1);
CLK_PORT1 143 kernel/arch/ia32/src/drivers/i8254.c o2 |= pio_read_8(CLK_PORT1) << 8;
HelenOS homepage, sources at GitHub