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-rw-r--r--src/common/x64/emitter.cpp28
1 files changed, 28 insertions, 0 deletions
diff --git a/src/common/x64/emitter.cpp b/src/common/x64/emitter.cpp
index 1dcf2416c..5662f7f86 100644
--- a/src/common/x64/emitter.cpp
+++ b/src/common/x64/emitter.cpp
@@ -455,6 +455,18 @@ void XEmitter::CALL(const void* fnptr)
Write32(u32(distance));
}
+FixupBranch XEmitter::CALL()
+{
+ FixupBranch branch;
+ branch.type = 1;
+ branch.ptr = code + 5;
+
+ Write8(0xE8);
+ Write32(0);
+
+ return branch;
+}
+
FixupBranch XEmitter::J(bool force5bytes)
{
FixupBranch branch;
@@ -531,6 +543,22 @@ void XEmitter::SetJumpTarget(const FixupBranch& branch)
}
}
+void XEmitter::SetJumpTarget(const FixupBranch& branch, const u8* target)
+{
+ if (branch.type == 0)
+ {
+ s64 distance = (s64)(target - branch.ptr);
+ ASSERT_MSG(distance >= -0x80 && distance < 0x80, "Jump target too far away, needs force5Bytes = true");
+ branch.ptr[-1] = (u8)(s8)distance;
+ }
+ else if (branch.type == 1)
+ {
+ s64 distance = (s64)(target - branch.ptr);
+ ASSERT_MSG(distance >= -0x80000000LL && distance < 0x80000000LL, "Jump target too far away, needs indirect register");
+ ((s32*)branch.ptr)[-1] = (s32)distance;
+ }
+}
+
//Single byte opcodes
//There is no PUSHAD/POPAD in 64-bit mode.
void XEmitter::INT3() {Write8(0xCC);}