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cswapc.c: no XMScopy vararg func for XMM structure [fixes #171] #172

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cswapc.c: no XMScopy vararg func for XMM structure [fixes #171] #172

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27 changes: 18 additions & 9 deletions shell/cswapc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -98,29 +98,38 @@ void fmemcpy(void far *d1, void far *s1, unsigned len)
__attribute__((noinline))
#endif
static int XMScopy(
long length, ...
/* short shandle,
long soffset,
short dhandle,
long doffset */
unsigned long length,
unsigned short shandle,
unsigned long soffset,
unsigned short dhandle,
unsigned long doffset
)
{
assert(XMSdriverAdress);
unsigned short xmm[8];
xmm[0] = length;
xmm[1] = length >> 16;
xmm[2] = shandle;
xmm[3] = soffset;
xmm[4] = soffset >> 16;
xmm[5] = dhandle;
xmm[6] = doffset;
xmm[7] = doffset >> 16;

assert(XMSdriverAdress);
/* asm push si;
asm lea si,length
asm mov ah,0bh; */
#if defined(__TURBOC__)
_SI = (unsigned)&length;
_SI = (unsigned)&xmm[0];
_AH = 0xb;
XMSrequest();
/* asm pop si; */

return _AX; /* shut up warning */
#elif defined(__GNUC__)
return XMSrequest(0xb00, 0, &length);
return XMSrequest(0xb00, 0, &xmm[0]);
#else
return XMSdriverAdress(0xb00, 0, &length);
return XMSdriverAdress(0xb00, 0, &xmm[0]);
#endif
}

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