<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><br class=""><div class="">
<div dir="auto" style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;">Jordi Guillaumes i Pons<br class=""><a href="mailto:jg@jordi.guillaumes.name" class="">jg@jordi.guillaumes.name</a><br class="">HECnet: BITXOW::JGUILLAUMES<br class=""><br class=""><br class=""></div></div>
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<div><blockquote type="cite" class=""><div class=""><div text="#000000" bgcolor="#FFFFFF" class=""><br class="">
IIRC, DECC added #pragma linkage for that. But that only matters in
kernel code - any user mode JSB linkage in the VAX calling standard
has a corresponding CALL linkage. <br class=""></div></div></blockquote></div><div class=""><br class=""></div><div class="">Just as side info…</div><div class=""><br class=""></div><div class="">IBM added a different C compiler to zOS (MVS) to do systems stuff. They call it “Metal-C” and comes with a different RTL and assorted header files to invoke the MVS macros and address its control blocks.</div><div class=""><br class=""></div><div class="">I don’t know anyone who uses it. We toke a look into it and went back to using assembler to interface with the system.</div><div class=""><br class=""></div><div class="">IBM itself still uses PL/X as systems implementation language., which as far as I know has not been made available to the public until relatively recent times. As the name hints at, it’s a PL/I derivative tailored for systems and low level stuff (although the “regular” PL/I can do it without too much changes).</div><div class=""><br class=""></div><br class=""><div class="">Jordi Guillaumes i Pons<br class=""><a href="mailto:jg@jordi.guillaumes.name" class="">jg@jordi.guillaumes.name</a><br class="">HECnet: BITXOW::JGUILLAUMES<br class=""></div></body></html>