On 6/30/23 11:13, Christoph Muellner wrote:
From: Christoph Müllner<[email protected]>
This patch introduces a test for Zfa's fcvtmod.w.d instruction.
The test cases test for correct results and flag behaviour.
Note, that the Zfa specification requires fcvtmod's flag behaviour
to be identical to a fcvt with the same operands (which is also
tested).
DO NOT MERGE!!!
Although this test works just fine, it requires a toolchain
that supports the Zfa extension. Unless this is available
this patch cannot be merged.
DO NOT MERGE!!!
That's what
/* fcvtmod.w.d rd, rs1, rtz = 1100001 01000 rs1 001 rd 1010011 */
asm(".insn r, 0x53, 0x1, 0x61, %0, %1, f8" : "=r"(ret) : "f"(fpr));
is for.
+ __asm__ __volatile__("fmv.d.x %0, %1" : "=fp"(fpr) : "r"(inp));
Always "f" not "fp". "fp" is *two* constraints, "f" and "p", and the second is
incorrect.
r~
