From 251f76b3629c251238081c9a51bead45f6954f23 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Henrik=20Grubbstr=C3=B6m=20=28Grubba=29?=
<grubba@grubba.org>
Date: Sat, 7 Apr 2012 14:11:14 +0200
Subject: [PATCH] IA32: Added some more IA32 opcodes.
---
src/code/ia32.c | 80 ++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 79 insertions(+), 1 deletion(-)
diff --git a/src/code/ia32.c b/src/code/ia32.c
index 6e5668df64..3493d17874 100644
--- a/src/code/ia32.c
+++ b/src/code/ia32.c
@@ -18,7 +18,8 @@
#undef REG_NONE
#endif
-enum ia32_reg {REG_EAX = 0, REG_EBX = 3, REG_ECX = 1, REG_EDX = 2, REG_NONE = 4};
+enum ia32_reg {REG_EAX = 0, REG_EBX = 3, REG_ECX = 1, REG_EDX = 2, REG_NONE = 4,
+ REG_ESP = 4, REG_EBP = 5, REG_ESI = 6, REG_EDI = 7, };
#define REG_BITMASK ((1 << REG_NONE) - 1)
@@ -79,6 +80,13 @@ static int alloc_regs = 0, valid_regs = 0;
PUSH_ADDR (&(ADDR)); \
} while (0)
+#define MOV_REG_TO_REG(FROM, TO) do { \
+ CHECK_VALID_REG(FROM); \
+ MAKE_VALID_REG(TO); \
+ add_to_program (0x89); /* Move r32 to r/m32. */ \
+ add_to_program (0xc0 | ((FROM)<<3) | (TO)); \
+ } while(0)
+
#define MOV_REG_TO_ABSADDR(REG, ADDR) do { \
CHECK_VALID_REG (REG); \
/* movl %reg,addr */ \
@@ -205,6 +213,37 @@ static int alloc_regs = 0, valid_regs = 0;
} \
} while (0)
+#define MOV_RELSTACK_TO_REG(OFFSET, REG) do { \
+ INT32 off_ = (OFFSET); \
+ MAKE_VALID_REG (REG); \
+ /* movl offset(%esp), %reg */ \
+ add_to_program (0x8b); /* Move r/m32 to r32. */ \
+ if (off_ < -128 || off_ > 127) { \
+ add_to_program (0x84 | ((REG) << 3)); \
+ add_to_program (0x24); \
+ PUSH_INT (off_); \
+ } \
+ else if (off_) { \
+ add_to_program (0x44 | ((REG) << 3)); \
+ add_to_program (0x24); \
+ add_to_program (off_); \
+ } \
+ else { \
+ add_to_program (0x04 | ((REG) << 3)); \
+ add_to_program (0x24); \
+ } \
+ } while (0)
+
+#define PUSH_REG(REG) do { \
+ CHECK_VALID_REG (REG); \
+ add_to_program (0x50 + (REG)); \
+ } while (0)
+
+#define POP_REG(REG) do { \
+ MAKE_VALID_REG (REG); \
+ add_to_program (0x58 + (REG)); \
+ } while (0)
+
#define ADD_VAL_TO_REG(VAL, REG) do { \
INT32 val_ = (VAL); \
CHECK_VALID_REG (REG); \
@@ -300,6 +339,45 @@ static int alloc_regs = 0, valid_regs = 0;
} \
} while (0)
+#define CMP_REG_IMM32(REG, IMM) do { \
+ if ((REG) == REG_EAX) { \
+ add_to_program(0x3d); \
+ } else { \
+ add_to_program(0x81); \
+ add_to_program(0xf8 | (REG)); \
+ } \
+ PUSH_INT((IMM)); \
+ } while (0)
+
+#define CMP_REG_REG(REG1, REG2) do { \
+ add_to_program(0x39); \
+ add_to_program(0xc0 | ((REG1)<<3) | (REG2)); \
+ } while (0)
+
+#define JNE(SKIP) do { \
+ int skip__ = (SKIP); \
+ if ((skip__ >= -0x80) && (skip__ <= 0x7f)) { \
+ add_to_program(0x75); \
+ add_to_program(skip__); \
+ } else { \
+ Pike_fatal("Not supported yet.\n"); \
+ } \
+ } while(0)
+
+#define JE(SKIP) do { \
+ int skip__ = (SKIP); \
+ if ((skip__ >= -0x80) && (skip__ <= 0x7f)) { \
+ add_to_program(0x74); \
+ add_to_program(skip__); \
+ } else { \
+ Pike_fatal("Not supported yet.\n"); \
+ } \
+ } while(0)
+
+#define RET() do { \
+ add_to_program(0xc3); \
+ } while (0);
+
#define CALL_RELATIVE(X) do{ \
struct program *p_=Pike_compiler->new_program; \
add_to_program(0xe8); \
--
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