使用WTO通过C语言通过asm来编写多行消息

发布于 2025-02-13 19:04:38 字数 1269 浏览 0 评论 0原文

我已经使用C语言程序中的__asm __成功编写了单行WTO消息，因此： -

typedef struct WTO_Parm
{
  short    int  len;          /* Total length of structure */
  short    int  mcsflags;
  unsigned char message[126];
} WTOPARM;
:
pWtoParm = (WTOPARM *)__malloc31(sizeof(WTOPARM));
:
__asm__(" WTO   MF=(E,(%[text]))\n"
        :
        :[text] "r"(pWtoParm)
        :"r0","r1","r14","r15");

我正在努力的是如何以相同的方式编写多行WTO。

对于多行消息，如果从授权程序发行WTO，则必须在第一次WTO发行上清除注册0。对于从问题程序发出的WTO，寄存器0中的任何数据都被忽略。
我不是授权的程序，
如果您代码linkage = svc ...
这是默认的
，并且您代码connect参数，您需要使用PSW密钥0-7或APF授权对主管国家的最低授权。
我不是授权程序
您必须在发出多行WTO之前清除注册0。唯一的例外是，当您使用寄存器0传递消息标识符以连接多线消息时。但是，在这种情况下，IBM®建议您使用连接参数而不是寄存器0。
i不能编码连接参数，因为我不是授权的程序，因此必须使用寄存器0，而是寄存器中的任何数据忽略了0

从问题程序中

__asm__(" WTO   MF=(E,(%[text]))\n"
        " ST 1,%[wtoconn]\n"
        :[wtoconn] "=m"(ConnID)
        :[text] "r"(pWtoParm)
        :"r0","r1","r14","r15");

。 connid返回并使用WTO使用它。我尝试了寄存器0并连接=（即使上述项目符号列表表明既行之有效），但似乎被忽略了。我尝试使用用硬编码的数字（1234）放入connid，但在R15中仍然没有任何错误，也表明它被忽略了，因为我应该得到RC = 08 。

我相信问题状态程序可以编写多行WTO，但也许不是通过使用连接。编写多行WTO的替代方法是什么，任何人都可以确认问题状态程序可以或不能使用连接/注册0。

原文

I have successfully written out single line WTO messages using __asm__ from a C language program, thus:-

typedef struct WTO_Parm
{
  short    int  len;          /* Total length of structure */
  short    int  mcsflags;
  unsigned char message[126];
} WTOPARM;
:
pWtoParm = (WTOPARM *)__malloc31(sizeof(WTOPARM));
:
__asm__(" WTO   MF=(E,(%[text]))\n"
        :
        :[text] "r"(pWtoParm)
        :"r0","r1","r14","r15");

What I'm struggling with is how to write a Multi-line WTO in the same fashion.

The description of WTO - Write to operator says:-

For a multiple-line message, you must clear register 0 on the first WTO issuance if the WTO is being issued from an authorized program. For WTOs issued from problem programs, any data in register 0 is ignored.
I am not an authorized program
If you code LINKAGE=SVC ...
which is the default
and you code the CONNECT parameter, you need a minimum authorization of either supervisor state with PSW key 0-7 or APF-authorized.
I am not an authorized program
You must clear register 0 before issuing a multiple-line WTO. The only exception is when you are using register 0 to pass a message identifier to connect multiple-line messages. However, in this case, IBM® suggests you use the CONNECT parameter rather than register 0.
I cannot code the CONNECT parameter as I am not an authorized program, so must use register 0, but any data in register 0 is ignored from problem programs.

I have been able to retrieve the message identification number used to connect WTO messages, on return from a successful WTO, with the following invocation:-

__asm__(" WTO   MF=(E,(%[text]))\n"
        " ST 1,%[wtoconn]\n"
        :[wtoconn] "=m"(ConnID)
        :[text] "r"(pWtoParm)
        :"r0","r1","r14","r15");

But I have not been able to pass the ConnID back in and have WTO make use of it. I have tried register 0 and CONNECT= (even though the above bulleted list suggests neither will work) but it seems to be ignored. I have tried putting in a ConnID with a hard-coded number (1234) and still didn't get any error back in R15, also suggesting that it is being ignored as I should have got RC=08.

I am sure that problem state programs can write multi-line WTOs but perhaps not by using CONNECT. What are the alternative ways to write a multi-line WTO and can anyone confirm that problem state programs can or cannot use CONNECT/register 0.

分享到QQ

分享到微博