/// MA 02111-1307, USA.
///--------------------------------------------------------------------------
-/// External definitions.
+/// Preliminaries.
#include "config.h"
#include "asm-common.h"
+ .text
+
///--------------------------------------------------------------------------
/// Main code.
- .arch pentium4
- .text
+FUNC(chacha_core_x86ish_avx)
+ .arch .avx
+ vzeroupper
+ endprologue
+ // drop through...
+ENDFUNC
+
+ .arch pentium4
FUNC(chacha_core_x86ish_sse2)
#if CPUFAM_X86
// Arguments come in on the stack, and will need to be collected. We
- // we can get away with just the scratch registers for integer work,
- // but we'll run out of XMM registers and will need some properly
- // aligned space which we'll steal from the stack. I don't trust the
- // stack pointer's alignment, so I'll have to mask the stack pointer,
- // which in turn means I'll need to keep track of the old value.
- // Hence I'm making a full i386-style stack frame here.
+ // can get away with just the scratch registers for integer work, but
+ // we'll run out of XMM registers and will need some properly aligned
+ // space which we'll steal from the stack. I don't trust the stack
+ // pointer's alignment, so I'll have to mask the stack pointer, which
+ // in turn means I'll need to keep track of the old value. Hence I'm
+ // making a full i386-style stack frame here.
//
// The Windows and SysV ABIs are sufficiently similar that we don't
// need to worry about the differences here.
# define SAVE0 xmm5
# define SAVE1 xmm6
# define SAVE2 xmm7
-# define SAVE3 [esp]
-
- push ebp
- mov ebp, esp
- sub esp, 16
- mov IN, [ebp + 12]
- mov OUT, [ebp + 16]
- and esp, ~15
- mov NR, [ebp + 8]
+# define SAVE3 [SP]
+
+ pushreg BP
+ setfp
+ stalloc 16
+ mov IN, [BP + 12]
+ mov OUT, [BP + 16]
+ and SP, ~15
+ mov NR, [BP + 8]
#endif
#if CPUFAM_AMD64 && ABI_SYSV
# define IN rdx
# define OUT r8
# define SAVE0 xmm5
-# define SAVE1 [rsp + 0]
-# define SAVE2 [rsp + 16]
-# define SAVE3 [rsp + 32]
+# define SAVE1 [SP + 0]
+# define SAVE2 [SP + 16]
+# define SAVE3 [SP + 32]
- sub rsp, 48 + 8
- .seh_stackalloc 48 + 8
- .seh_endprologue
+ stalloc 48 + 8
#endif
+ endprologue
+
// First job is to slurp the matrix into XMM registers. Be careful:
// the input matrix isn't likely to be properly aligned.
//
// Tidy things up.
#if CPUFAM_X86
- mov esp, ebp
- pop ebp
+ dropfp
+ popreg BP
#endif
#if CPUFAM_AMD64 && ABI_WIN
- add rsp, 48 + 8
+ stfree 48 + 8
#endif
// And with that, we're done.