From c0e08b6c238f44055595a7fffd25e653a96af15c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Leon=20Wei=C3=9F?= <leon.weiss@rub.de>
Date: Thu, 3 Aug 2023 12:50:02 +0000
Subject: [PATCH] Add functions to selectively obtain lower/upper 8 bit regs
---
irdb-libs/libIRDB-util/src/registers.cpp | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/irdb-libs/libIRDB-util/src/registers.cpp b/irdb-libs/libIRDB-util/src/registers.cpp
index b8d02ec4a..8239122ba 100644
--- a/irdb-libs/libIRDB-util/src/registers.cpp
+++ b/irdb-libs/libIRDB-util/src/registers.cpp
@@ -429,11 +429,18 @@ RegisterID_t IRDB_SDK::convertRegisterTo16bit(const RegisterID_t p_reg)
}
}
+// Does not guarantee, whether the returned register is the lower or upper half
+// of the lowest 16 bits
RegisterID_t IRDB_SDK::convertRegisterTo8bit(const RegisterID_t p_reg)
{
if (is8bitRegister(p_reg))
return p_reg;
+ return convertRegisterTo8bitLower(p_reg);
+}
+
+RegisterID_t IRDB_SDK::convertRegisterTo8bitLower(const RegisterID_t p_reg)
+{
switch (p_reg)
{
case rn_RAX: case rn_EAX: case rn_AX: return rn_AL;
@@ -458,3 +465,16 @@ RegisterID_t IRDB_SDK::convertRegisterTo8bit(const RegisterID_t p_reg)
}
}
+RegisterID_t IRDB_SDK::convertRegisterTo8bitUpper(const RegisterID_t p_reg)
+{
+ switch (convertRegisterTo8bitLower(p_reg))
+ {
+ case rn_AL: return rn_AH;
+ case rn_BL: return rn_BH;
+ case rn_CL: return rn_CH;
+ case rn_DL: return rn_DH;
+ default:
+ return rn_UNKNOWN;
+ break;
+ }
+}
\ No newline at end of file
--
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