--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dyncall/dyncall_callvm_mips_n32.c	Thu Mar 19 22:24:28 2015 +0100
@@ -0,0 +1,269 @@
+/*
+
+ Package: dyncall
+ Library: dyncall
+ File: dyncall/dyncall_callvm_mips_n32.c
+ Description: mips "n32" ABI callvm implementation
+ License:
+
+   Copyright (c) 2007-2015 Daniel Adler <dadler@uni-goettingen.de>, 
+                           Tassilo Philipp <tphilipp@potion-studios.com>
+
+   Permission to use, copy, modify, and distribute this software for any
+   purpose with or without fee is hereby granted, provided that the above
+   copyright notice and this permission notice appear in all copies.
+
+   THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+   WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+   MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+   ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+*/
+
+
+
+/*
+
+  dyncall callvm for 64bit MIPS family of processors
+
+  SUPPORTED CALLING CONVENTIONS
+  n32
+
+  REVISION
+  2010/05/30 initial
+
+  in contrast to o32, there is no space reserved for parameters
+  passed over registers.
+  more registers are used and registers are always used.
+
+  stack is always 16-byte aligned at entry (call to call-kernel automatically
+  aligns argument stack.
+
+  integer and float register-file is interleaved either taking one slot up
+  skipping the other.
+
+
+*/
+
+
+#include "dyncall_callvm_mips_n32.h"
+#include "dyncall_alloc.h"
+#include "dyncall_utils.h"
+
+static void dc_callvm_reset_mips_n32(DCCallVM* in_self)
+{
+  DCCallVM_mips_n32* self = (DCCallVM_mips_n32*)in_self;
+  dcVecReset(&self->mVecHead);
+  self->mRegCount = 0;
+  self->mRegData.mUseDouble = 0LL;
+}
+
+static DCCallVM* dc_callvm_new_mips_n32(DCCallVM_vt* vt, DCsize size)
+{
+  DCCallVM_mips_n32* self = (DCCallVM_mips_n32*)dcAllocMem(sizeof(DCCallVM_mips_n32)+size);
+  dc_callvm_base_init(&self->mInterface, vt);
+  dcVecInit(&self->mVecHead, size);
+  dc_callvm_reset_mips_n32( (DCCallVM*) self );
+  return (DCCallVM*)self;
+}
+
+
+static void dc_callvm_free_mips_n32(DCCallVM* in_self)
+{
+  dcFreeMem(in_self);
+}
+
+/* pass arguments :
+
+   - promote to 64-bit integer.
+   - fill up integers and float - left-to-right otherwise go over stack.
+ */
+
+/* arg int -- fillup 64-bit integer register file OR push on stack */
+
+static void dc_callvm_argLongLong_mips_n32(DCCallVM* in_self, DClonglong Lv)
+{
+  DCCallVM_mips_n32* self = (DCCallVM_mips_n32*)in_self;
+  /* fillup integer register file */
+  if (self->mRegCount < 8)
+    self->mRegData.mIntData[self->mRegCount++] = Lv;
+  else
+    dcVecAppend(&self->mVecHead, &Lv, sizeof(DClonglong));
+}
+
+static void dc_callvm_argInt_mips_n32(DCCallVM* in_self, DCint i)
+{
+  dc_callvm_argLongLong_mips_n32(in_self, (DClonglong) i );
+}
+
+static void dc_callvm_argPointer_mips_n32(DCCallVM* in_self, DCpointer x)
+{
+  dc_callvm_argLongLong_mips_n32(in_self, * (DClonglong*) &x );
+}
+
+static void dc_callvm_argBool_mips_n32(DCCallVM* in_self, DCbool x)
+{
+  dc_callvm_argLongLong_mips_n32(in_self, (DClonglong)x);
+}
+
+static void dc_callvm_argChar_mips_n32(DCCallVM* in_self, DCchar x)
+{
+  dc_callvm_argLongLong_mips_n32(in_self, (DClonglong)x);
+}
+
+static void dc_callvm_argShort_mips_n32(DCCallVM* in_self, DCshort x)
+{
+  dc_callvm_argLongLong_mips_n32(in_self, (DClonglong)x);
+}
+
+static void dc_callvm_argLong_mips_n32(DCCallVM* in_self, DClong x)
+{
+  dc_callvm_argLongLong_mips_n32(in_self, (DClonglong)x);
+}
+
+static void dc_callvm_argDouble_mips_n32(DCCallVM* in_self, DCdouble x)
+{
+  DCCallVM_mips_n32* self = (DCCallVM_mips_n32*)in_self;
+  if (self->mRegCount < 8) {
+    self->mRegData.mUseDouble |= 1<<( self->mRegCount );
+    self->mRegData.mFloatData[self->mRegCount++].d = x;
+  } else {
+    dcVecAppend(&self->mVecHead, &x, sizeof(DCdouble) );
+  }
+}
+
+static void dc_callvm_argFloat_mips_n32(DCCallVM* in_self, DCfloat x)
+{
+  DCCallVM_mips_n32* self = (DCCallVM_mips_n32*)in_self;
+  if (self->mRegCount < 8) {
+    /*self->mRegData.mFloatData[self->mRegCount++].d = (DCdouble) x;*/
+    self->mRegData.mFloatData[self->mRegCount++].f = x;
+  } else {
+    dcVecAppend(&self->mVecHead, &x, sizeof(DCfloat) );
+    dcVecSkip(&self->mVecHead, sizeof(DCfloat) );
+  }
+}
+
+
+/* Ellipsis calls: 
+   - float is promoted to double (due to ANSI C).
+   - double is passed via integer register-file (due to MIPS ABI).
+*/
+
+static void dc_callvm_argDouble_mips_n32_ellipsis(DCCallVM* in_self, DCdouble x)
+{
+  dc_callvm_argLongLong_mips_n32(in_self, * ( (DClonglong*) &x ) );
+}
+
+static void dc_callvm_argFloat_mips_n32_ellipsis(DCCallVM* in_self, DCfloat x)
+{
+  dc_callvm_argDouble_mips_n32_ellipsis(in_self, (DCdouble) x );
+}
+
+
+/* Call. */
+
+void dc_callvm_call_mips_n32(DCCallVM* in_self, DCpointer target)
+{
+  DCCallVM_mips_n32* self = (DCCallVM_mips_n32*)in_self;
+  /* at minimum provide 16-bytes
+     which hold the first four integer register as spill area 
+     and are automatically loaded to $4-$7
+   */
+  size_t size = DC_MAX(16, ( ( (unsigned) dcVecSize(&self->mVecHead) ) +7UL ) & (-8UL) );
+  dcCall_mips_n32(target, &self->mRegData, size, dcVecData(&self->mVecHead));
+}
+
+/* Forward Declaration. */
+static void dc_callvm_mode_mips_n32(DCCallVM* in_self,DCint mode);
+
+DCCallVM_vt gVT_mips_n32 =
+{
+  &dc_callvm_free_mips_n32
+, &dc_callvm_reset_mips_n32
+, &dc_callvm_mode_mips_n32
+, &dc_callvm_argBool_mips_n32
+, &dc_callvm_argChar_mips_n32
+, &dc_callvm_argShort_mips_n32 
+, &dc_callvm_argInt_mips_n32
+, &dc_callvm_argLong_mips_n32
+, &dc_callvm_argLongLong_mips_n32
+, &dc_callvm_argFloat_mips_n32
+, &dc_callvm_argDouble_mips_n32
+, &dc_callvm_argPointer_mips_n32
+, NULL /* argStruct */
+, (DCvoidvmfunc*)       &dc_callvm_call_mips_n32
+, (DCboolvmfunc*)       &dc_callvm_call_mips_n32
+, (DCcharvmfunc*)       &dc_callvm_call_mips_n32
+, (DCshortvmfunc*)      &dc_callvm_call_mips_n32
+, (DCintvmfunc*)        &dc_callvm_call_mips_n32
+, (DClongvmfunc*)       &dc_callvm_call_mips_n32
+, (DClonglongvmfunc*)   &dc_callvm_call_mips_n32
+, (DCfloatvmfunc*)      &dc_callvm_call_mips_n32
+, (DCdoublevmfunc*)     &dc_callvm_call_mips_n32
+, (DCpointervmfunc*)    &dc_callvm_call_mips_n32
+, NULL /* callStruct */
+};
+
+DCCallVM_vt gVT_mips_n32_ellipsis =
+{
+  &dc_callvm_free_mips_n32
+, &dc_callvm_reset_mips_n32
+, &dc_callvm_mode_mips_n32
+, &dc_callvm_argBool_mips_n32
+, &dc_callvm_argChar_mips_n32
+, &dc_callvm_argShort_mips_n32
+, &dc_callvm_argInt_mips_n32
+, &dc_callvm_argLong_mips_n32
+, &dc_callvm_argLongLong_mips_n32
+, &dc_callvm_argFloat_mips_n32_ellipsis
+, &dc_callvm_argDouble_mips_n32_ellipsis
+, &dc_callvm_argPointer_mips_n32
+, NULL /* argStruct */
+, (DCvoidvmfunc*)       &dc_callvm_call_mips_n32
+, (DCboolvmfunc*)       &dc_callvm_call_mips_n32
+, (DCcharvmfunc*)       &dc_callvm_call_mips_n32
+, (DCshortvmfunc*)      &dc_callvm_call_mips_n32
+, (DCintvmfunc*)        &dc_callvm_call_mips_n32
+, (DClongvmfunc*)       &dc_callvm_call_mips_n32
+, (DClonglongvmfunc*)   &dc_callvm_call_mips_n32
+, (DCfloatvmfunc*)      &dc_callvm_call_mips_n32
+, (DCdoublevmfunc*)     &dc_callvm_call_mips_n32
+, (DCpointervmfunc*)    &dc_callvm_call_mips_n32
+, NULL /* callStruct */
+};
+
+static void dc_callvm_mode_mips_n32(DCCallVM* self,DCint mode)
+{
+  switch(mode) {
+    case DC_CALL_C_DEFAULT:
+      self->mVTpointer = &gVT_mips_n32;
+      break;
+    case DC_CALL_C_ELLIPSIS:
+      self->mVTpointer = &gVT_mips_n32_ellipsis;
+      break;
+    default:
+      self->mError = DC_ERROR_UNSUPPORTED_MODE;
+      break;
+  }
+}
+
+DCCallVM* dcNewCallVM_mips_n32(DCsize size) 
+{
+  return dc_callvm_new_mips_n32(&gVT_mips_n32, size);
+}
+
+DCCallVM* dcNewCallVM_mips_n32_ellipsis(DCsize size) 
+{
+  return dc_callvm_new_mips_n32(&gVT_mips_n32_ellipsis, size);
+}
+
+
+DCCallVM* dcNewCallVM(DCsize size)
+{
+  return dcNewCallVM_mips_n32(size);
+}
+