--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dyncall/dyncall_callvm_mips_o32.c	Thu Mar 19 22:24:28 2015 +0100
@@ -0,0 +1,236 @@
+/*
+
+ Package: dyncall
+ Library: dyncall
+ File: dyncall/dyncall_callvm_mips_o32.c
+ Description: mips "o32" 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 mips o32 abi
+
+  REVISION
+  2010/06/03 initial
+
+  NOTES:
+  we need an argument counter for supporting floating point arguments
+  correctly.
+
+  first two (if any) double/float arguments are mapped via a common structure --
+  code must take care to write the right float argument indices which
+  differs on C and Assembly-side depending on endianness. (therefore
+  both sources have two variants 'mipseb' and 'mipsel'.)
+  (only for the first two float/double arguments) see float/double handling
+
+  although, the abi does not expect usage of floats if first argument is
+  not floating point, the call kernel can be used universal for all cases.
+
+*/
+
+
+#include "dyncall_callvm_mips_o32.h"
+#include "dyncall_alloc.h"
+#include "dyncall_utils.h"
+
+
+static void dc_callvm_reset_mips_o32(DCCallVM* in_self)
+{
+  DCCallVM_mips_o32* self = (DCCallVM_mips_o32*)in_self;
+  dcVecReset(&self->mVecHead);
+  self->mArgCount = 0;
+}
+
+static DCCallVM* dc_callvm_new_mips_o32(DCCallVM_vt* vt, DCsize size)
+{
+  DCCallVM_mips_o32* self = (DCCallVM_mips_o32*)dcAllocMem(sizeof(DCCallVM_mips_o32)+size);
+  dc_callvm_base_init(&self->mInterface, vt);
+  dcVecInit(&self->mVecHead, size);
+  dc_callvm_reset_mips_o32( (DCCallVM*) self );
+  return (DCCallVM*)self;
+}
+
+
+static void dc_callvm_free_mips_o32(DCCallVM* in_self)
+{
+  dcFreeMem(in_self);
+}
+
+static void dc_callvm_mode_mips_o32(DCCallVM* self, DCint mode)
+{
+  switch(mode) {
+    case DC_CALL_C_DEFAULT:
+    case DC_CALL_C_ELLIPSIS:
+    case DC_CALL_C_MIPS32_O32:
+      break;
+    default:
+      self->mError = DC_ERROR_UNSUPPORTED_MODE;
+      break;
+  }
+}
+
+/* arg int -- fillup integer register file OR push on stack */
+
+static void dc_callvm_argInt_mips_o32(DCCallVM* in_self, DCint i)
+{
+  DCCallVM_mips_o32* self = (DCCallVM_mips_o32*)in_self;
+  dcVecAppend(&self->mVecHead, &i, sizeof(DCint));
+  self->mArgCount++;
+}
+
+static void dc_callvm_argPointer_mips_o32(DCCallVM* in_self, DCpointer x)
+{
+  dc_callvm_argInt_mips_o32(in_self, * (DCint*) &x );
+}
+
+static void dc_callvm_argBool_mips_o32(DCCallVM* in_self, DCbool x)
+{
+  dc_callvm_argInt_mips_o32(in_self, (DCint)x);
+}
+
+static void dc_callvm_argChar_mips_o32(DCCallVM* in_self, DCchar x)
+{
+  dc_callvm_argInt_mips_o32(in_self, (DCint)x);
+}
+
+static void dc_callvm_argShort_mips_o32(DCCallVM* in_self, DCshort x)
+{
+  dc_callvm_argInt_mips_o32(in_self, (DCint)x);
+}
+
+static void dc_callvm_argLong_mips_o32(DCCallVM* in_self, DClong x)
+{
+  dc_callvm_argInt_mips_o32(in_self, (DCint)x);
+}
+
+static void dc_callvm_argLongLong_mips_o32(DCCallVM* in_self, DClonglong Lv)
+{
+  DCCallVM_mips_o32* self = (DCCallVM_mips_o32*)in_self;
+    
+  /* 64-bit values need to be aligned on 8 byte boundaries */
+  dcVecSkip(&self->mVecHead, dcVecSize(&self->mVecHead) & 4);
+  dcVecAppend(&self->mVecHead, &Lv, sizeof(DClonglong));
+  self->mArgCount += 1;
+}
+
+static void dc_callvm_argFloat_mips_o32(DCCallVM* in_self, DCfloat x)
+{
+  DCCallVM_mips_o32* self = (DCCallVM_mips_o32*)in_self;
+
+  dcVecAppend(&self->mVecHead, &x, sizeof(DCfloat) );
+  if (self->mArgCount < 2) {
+#if defined(__MIPSEL__)
+    self->mRegData.u[self->mArgCount].f[0] = x;
+#else
+    self->mRegData.u[self->mArgCount].f[1] = x;
+#endif
+#if 0
+    self->mRegData.u[self->mArgCount].f[1] = x;
+   call kernel
+        
+        mips:
+        lwc1	$f12, 4($5)       <--- byte offset 4
+	lwc1	$f13, 0($5)
+	lwc1	$f14, 12($5)      <--- byte offset 12 
+	lwc1	$f15, 8($5)
+        mipsel:
+        lwc1	$f12, 0($5)       <--- byte offset 4
+	lwc1	$f13, 4($5)
+	lwc1	$f14, 8($5)      <--- byte offset 12 
+	lwc1	$f15, 12($5)
+
+#if defined(__MIPSEL__)
+    /* index 0 and 2 */
+    self->mRegData.floats[self->mArgCount*2] = x;
+#else
+    /* index 1 and 3 */
+    self->mRegData.floats[self->mArgCount*2+1] = x;
+#endif
+#endif
+  }
+  self->mArgCount++;
+}
+
+static void dc_callvm_argDouble_mips_o32(DCCallVM* in_self, DCdouble x)
+{
+  DCCallVM_mips_o32* self = (DCCallVM_mips_o32*)in_self;
+  /* 64-bit values need to be aligned on 8 byte boundaries */
+  dcVecSkip(&self->mVecHead, dcVecSize(&self->mVecHead) & 4);
+  dcVecAppend(&self->mVecHead, &x, sizeof(DCdouble) );
+  if (self->mArgCount < 2)
+    self->mRegData.u[self->mArgCount].d = x;
+  self->mArgCount++;
+}
+
+/* Call. */
+void dc_callvm_call_mips_o32(DCCallVM* in_self, DCpointer target)
+{
+  DCCallVM_mips_o32* self = (DCCallVM_mips_o32*)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_o32(target, &self->mRegData, size, dcVecData(&self->mVecHead));
+}
+
+DCCallVM_vt gVT_mips_o32 =
+{
+  &dc_callvm_free_mips_o32
+, &dc_callvm_reset_mips_o32
+, &dc_callvm_mode_mips_o32
+, &dc_callvm_argBool_mips_o32
+, &dc_callvm_argChar_mips_o32
+, &dc_callvm_argShort_mips_o32 
+, &dc_callvm_argInt_mips_o32
+, &dc_callvm_argLong_mips_o32
+, &dc_callvm_argLongLong_mips_o32
+, &dc_callvm_argFloat_mips_o32
+, &dc_callvm_argDouble_mips_o32
+, &dc_callvm_argPointer_mips_o32
+, NULL /* argStruct */
+, (DCvoidvmfunc*)       &dc_callvm_call_mips_o32
+, (DCboolvmfunc*)       &dc_callvm_call_mips_o32
+, (DCcharvmfunc*)       &dc_callvm_call_mips_o32
+, (DCshortvmfunc*)      &dc_callvm_call_mips_o32
+, (DCintvmfunc*)        &dc_callvm_call_mips_o32
+, (DClongvmfunc*)       &dc_callvm_call_mips_o32
+, (DClonglongvmfunc*)   &dc_callvm_call_mips_o32
+, (DCfloatvmfunc*)      &dc_callvm_call_mips_o32
+, (DCdoublevmfunc*)     &dc_callvm_call_mips_o32
+, (DCpointervmfunc*)    &dc_callvm_call_mips_o32
+, NULL /* callStruct */
+};
+
+DCCallVM* dcNewCallVM_mips_o32(DCsize size) 
+{
+  return dc_callvm_new_mips_o32(&gVT_mips_o32, size);
+}
+
+
+DCCallVM* dcNewCallVM(DCsize size)
+{
+  return dcNewCallVM_mips_o32(size);
+}
+