On Friday, 5 March 2021 at 16:10:02 UTC, Rumbu wrote:
First of all, in 64 bit ABI, parameters are not passed on
stack, therefore a[RBP] is a nonsense.
void complement32(simdbytes* a, simdbytes* b)
a is in RCX, b is in RDX on Windows
a is in RDI, b is in RSI on Linux
I'm confused, with your help i've been able to find the function
calling convention but on LDC-generated code, sometimes i see the
layout being reversed(The function i was looking at is a 7
argument function, all are pointers. The first argument is on the
stack, the seventh and last is in RCX) and the offsets don't seem
to make sense either(first arguemnt as ss:[rsp+38], second at
ss:[rsp+30], and third at ss:[rsp+28])
Secondly, there is no such thing as movaps YMMX, [RAX], but
vmovaps YMM3, [RAX]
Same for vxorps, but there are 3 operands, not 2.
You're absolutely right, but apparently it only accepts the
two-operand version from SSE.
Other AVX/AVX2/AVX512 instructions that have «v» prefixed aren't
recognized either("Error: unknown opcode vmovaps"), is AVX(2)
with YMM registers supported for «asm{}» statements?
