Add support for encoding double immediates (up to 20 bits of precision)
into the generated nvc0 machine-code.
Signed-off-by: Hans de Goede <hdego...@redhat.com>
---
src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp
b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp
index fd10314..8784f3b 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp
@@ -323,6 +323,14 @@ CodeEmitterNVC0::setImmediate(const Instruction *i, const
int s)
assert(imm);
u32 = imm->reg.data.u32;
+ if ((code[0] & 0xf) == 0x1) {
+ // double immediate
+ uint64_t u64 = imm->reg.data.u64;
+ assert(!(u64 & 0x00000fffffffffffULL));
+ assert(!(code[1] & 0xc000));
+ code[0] |= ((u64 >> 44) & 0x3f) << 26;
+ code[1] |= 0xc000 | (u64 >> 50);
+ } else
if ((code[0] & 0xf) == 0x2) {
// LIMM
code[0] |= (u32 & 0x3f) << 26;
--
2.5.0
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