21.02

Asm/arm64/7zAsm.S

@@ -0,0 +1,181 @@
+// 7zAsm.S -- ASM macros for arm64
+// 2021-04-25 : Igor Pavlov : Public domain
+
+#define  r0 x0
+#define  r1 x1
+#define  r2 x2
+#define  r3 x3
+#define  r4 x4
+#define  r5 x5
+#define  r6 x6
+#define  r7 x7
+#define  r8 x8
+#define  r9 x9
+#define  r10 x10
+#define  r11 x11
+#define  r12 x12
+#define  r13 x13
+#define  r14 x14
+#define  r15 x15
+#define  r16 x16
+#define  r17 x17
+#define  r18 x18
+#define  r19 x19
+#define  r20 x20
+#define  r21 x21
+#define  r22 x22
+#define  r23 x23
+#define  r24 x24
+#define  r25 x25
+#define  r26 x26
+#define  r27 x27
+#define  r28 x28
+#define  r29 x29
+#define  r30 x30
+
+#define  REG_ABI_PARAM_0 r0
+#define  REG_ABI_PARAM_1 r1
+#define  REG_ABI_PARAM_2 r2
+
+
+.macro p2_add reg:req, param:req
+        add     \reg, \reg, \param
+.endm
+
+.macro p2_sub reg:req, param:req
+        sub     \reg, \reg, \param
+.endm
+
+.macro p2_sub_s reg:req, param:req
+        subs    \reg, \reg, \param
+.endm
+
+.macro p2_and reg:req, param:req
+        and     \reg, \reg, \param
+.endm
+
+.macro xor reg:req, param:req
+        eor     \reg, \reg, \param
+.endm
+
+.macro or reg:req, param:req
+        orr     \reg, \reg, \param
+.endm
+
+.macro shl reg:req, param:req
+        lsl     \reg, \reg, \param
+.endm
+
+.macro shr reg:req, param:req
+        lsr     \reg, \reg, \param
+.endm
+
+.macro sar reg:req, param:req
+        asr     \reg, \reg, \param
+.endm
+
+.macro p1_neg reg:req
+        neg     \reg, \reg
+.endm
+
+.macro dec reg:req
+        sub     \reg, \reg, 1
+.endm
+
+.macro dec_s reg:req
+        subs    \reg, \reg, 1
+.endm
+
+.macro inc reg:req
+        add     \reg, \reg, 1
+.endm
+
+.macro inc_s reg:req
+        adds    \reg, \reg, 1
+.endm
+
+
+.macro imul reg:req, param:req
+        mul     \reg, \reg, \param
+.endm
+
+/*
+arm64 and arm use reverted c flag after subs/cmp instructions:
+  arm64-arm   :     x86
+ b.lo / b.cc  :  jb  / jc
+ b.hs / b.cs  :  jae / jnc
+*/ 
+
+.macro jmp lab:req
+        b       \lab
+.endm
+
+.macro je lab:req
+        b.eq    \lab
+.endm
+
+.macro jz lab:req
+        b.eq    \lab
+.endm
+
+.macro jnz lab:req
+        b.ne    \lab
+.endm
+
+.macro jne lab:req
+        b.ne    \lab
+.endm
+
+.macro jb lab:req
+        b.lo    \lab
+.endm
+
+.macro jbe lab:req
+        b.ls    \lab
+.endm
+
+.macro ja lab:req
+        b.hi    \lab
+.endm
+
+.macro jae lab:req
+        b.hs    \lab
+.endm
+
+
+.macro cmove dest:req, srcTrue:req
+        csel    \dest, \srcTrue, \dest, eq
+.endm
+
+.macro cmovne dest:req, srcTrue:req
+        csel    \dest, \srcTrue, \dest, ne
+.endm
+
+.macro cmovs dest:req, srcTrue:req
+        csel    \dest, \srcTrue, \dest, mi
+.endm
+
+.macro cmovns dest:req, srcTrue:req
+        csel    \dest, \srcTrue, \dest, pl
+.endm
+
+.macro cmovb dest:req, srcTrue:req
+        csel    \dest, \srcTrue, \dest, lo
+.endm
+
+.macro cmovae dest:req, srcTrue:req
+        csel    \dest, \srcTrue, \dest, hs
+.endm
+
+
+.macro MY_ALIGN_16 macro
+	.p2align 4,, (1 << 4) - 1
+.endm
+
+.macro MY_ALIGN_32 macro
+        .p2align 5,, (1 << 5) - 1
+.endm
+
+.macro MY_ALIGN_64 macro
+        .p2align 6,, (1 << 6) - 1
+.endm