From fd18010d49bcc4108d1ad137a17b93e038b7031c Mon Sep 17 00:00:00 2001
From: twinaphex <libretro@gmail.com>
Date: Mon, 25 Dec 2017 05:33:28 +0100
Subject: [PATCH] Make it work with MSVC 2003

---
 Makefile                       | 24 ++++++++++++++++++++++--
 mednafen/wswan/v30mz-private.h |  2 --
 mednafen/wswan/v30mz.cpp       | 18 ++++++++++++++++--
 3 files changed, 38 insertions(+), 6 deletions(-)

diff --git a/Makefile b/Makefile
index 59dc2b14..7970e8b1 100644
--- a/Makefile
+++ b/Makefile
@@ -384,7 +384,28 @@ PSS_STYLE :=2
 LDFLAGS += -DLL
 CFLAGS += -D_CRT_SECURE_NO_DEPRECATE
 LIBS =
-FLAGS += -DHAVE__MKDIR
+
+# Windows MSVC 2003 x86
+else ifeq ($(platform), windows_msvc2003_x86)
+	CC  = cl.exe
+	CXX = cl.exe
+
+PATH := $(shell IFS=$$'\n'; cygpath "$(VS71COMNTOOLS)../../Vc7/bin"):$(PATH)
+PATH := $(PATH):$(shell IFS=$$'\n'; cygpath "$(VS71COMNTOOLS)../IDE")
+INCLUDE := $(shell IFS=$$'\n'; cygpath "$(VS71COMNTOOLS)../../Vc7/include")
+LIB := $(shell IFS=$$'\n'; cygpath -w "$(VS71COMNTOOLS)../../Vc7/lib")
+BIN := $(shell IFS=$$'\n'; cygpath "$(VS71COMNTOOLS)../../Vc7/bin")
+
+WindowsSdkDir := $(INETSDK)
+
+export INCLUDE := $(INCLUDE);$(INETSDK)/Include;libretro-common/include/compat/msvc
+export LIB := $(LIB);$(WindowsSdkDir);$(INETSDK)/Lib
+TARGET := $(TARGET_NAME)_libretro.dll
+PSS_STYLE :=2
+LDFLAGS += -DLL
+CFLAGS += -D_CRT_SECURE_NO_DEPRECATE
+WINDOWS_VERSION=1
+
 # Windows
 else
    TARGET := $(TARGET_NAME)_libretro.dll
@@ -392,7 +413,6 @@ else
    CXX = g++
    SHARED := -shared -Wl,--no-undefined -Wl,--version-script=link.T
    LDFLAGS += -static-libgcc -static-libstdc++ -lwinmm
-   FLAGS += -DHAVE__MKDIR
 endif
 
 include Makefile.common
diff --git a/mednafen/wswan/v30mz-private.h b/mednafen/wswan/v30mz-private.h
index 47c6d19e..29099066 100644
--- a/mednafen/wswan/v30mz-private.h
+++ b/mednafen/wswan/v30mz-private.h
@@ -101,8 +101,6 @@ typedef enum
 #define FETCH (cpu_readop_arg((I.sregs[PS]<<4)+I.pc++))
 #define FETCHOP (cpu_readop((I.sregs[PS]<<4)+I.pc++))
 #define FETCHuint16(var) { var=cpu_readop_arg((((I.sregs[PS]<<4)+I.pc)))+(cpu_readop_arg((((I.sregs[PS]<<4)+I.pc+1)))<<8); I.pc+=2; }
-#define PUSH(val) { I.regs.w[SP]-=2; WriteWord((((I.sregs[SS]<<4)+I.regs.w[SP])),val); }
-#define POP(var) { var = ReadWord((((I.sregs[SS]<<4)+I.regs.w[SP]))); I.regs.w[SP]+=2; }
 #define PEEK(addr) ((uint8)cpu_readop_arg(addr))
 #define PEEKOP(addr) ((uint8)cpu_readop(addr))
 
diff --git a/mednafen/wswan/v30mz.cpp b/mednafen/wswan/v30mz.cpp
index b38dae44..b6484222 100644
--- a/mednafen/wswan/v30mz.cpp
+++ b/mednafen/wswan/v30mz.cpp
@@ -38,6 +38,18 @@
 
 static uint16 old_CS, old_IP;
 
+#define PUSH(val) \
+{ \
+   I.regs.w[SP] -= 2; \
+   WriteWord((((I.sregs[SS]<<4)+I.regs.w[SP])),val); \
+}
+
+#define POP(var) \
+{ \
+   var = ReadWord((((I.sregs[SS]<<4)+I.regs.w[SP]))); \
+   I.regs.w[SP]+=2; \
+}
+
 #ifdef WANT_DEBUGGER
  #define ADDBRANCHTRACE(x,y) { if(branch_trace_hook) branch_trace_hook(old_CS, old_IP, x, y, false); }
  #define ADDBRANCHTRACE_INT(x,y) { if(branch_trace_hook) branch_trace_hook(old_CS, old_IP, x,y, true); }
@@ -101,7 +113,8 @@ static uint8 parity_table[256];
 
 static INLINE void i_real_pushf(void)
 {
-   PUSH( CompressFlags() ); 
+   uint8 compr = CompressFlags();
+   PUSH(compr); 
    CLK(2);
 }
 
@@ -172,8 +185,9 @@ void v30mz_int(uint32 vector, bool IgnoreIF)
    if(I.IF || IgnoreIF)
    {
       uint32 dest_seg, dest_off;
+      uint8 compr = CompressFlags();
 
-      PUSH( CompressFlags() );
+      PUSH( compr );
       I.TF = I.IF = 0;
       dest_off = ReadWord(vector);
       dest_seg = ReadWord(vector+2);