From: Hugo Villeneuve <hugo@hugovil.com>
Date: Sun, 17 Nov 2013 19:03:12 +0000 (-0500)
Subject: Move PSW bit manipulation functions to psw.c
X-Git-Tag: v2.0.0~89
X-Git-Url: http://gitweb.hugovil.com/?a=commitdiff_plain;h=84075f7a1709b2d05858dc5f866fb4e4eb385ce0;p=emu8051.git

Move PSW bit manipulation functions to psw.c
---

diff --git a/src/Makefile.am b/src/Makefile.am
index 05c56da..4e1d98c 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -25,6 +25,7 @@ common_SOURCES = \
 	cpu8051.h \
 	memory.c \
 	memory.h \
+	psw.c psw.h \
 	common.h \
 	reg8051.h
 
diff --git a/src/memory.c b/src/memory.c
index 44a2118..ac8bca5 100644
--- a/src/memory.c
+++ b/src/memory.c
@@ -183,46 +183,6 @@ stack_pop16(void)
 	return value;
 }
 
-void
-psw_write_cy(int cy)
-{
-	u_int8_t psw = memory_read8(INT_MEM_ID, _PSW_);
-
-	if (cy)
-		psw |= 0x80;  /* Set */
-	else
-		psw &= ~0x80; /* Clear */
-
-	memory_write8(INT_MEM_ID, _PSW_, psw); /* Save updated value */
-}
-
-void
-psw_set_cy(void)
-{
-	u_int8_t psw = memory_read8(INT_MEM_ID, _PSW_);
-
-	psw |= 0x80;
-
-	memory_write8(INT_MEM_ID, _PSW_, psw); /* Save updated value */
-}
-
-void
-psw_clr_cy(void)
-{
-	u_int8_t psw = memory_read8(INT_MEM_ID, _PSW_);
-
-	psw &= ~0x80;
-
-	memory_write8(INT_MEM_ID, _PSW_, psw); /* Save updated value */
-}
-
-/* Returns 0 or 1 */
-int
-psw_read_cy(void)
-{
-	return memory_read8(INT_MEM_ID, _PSW_) >> 7;
-}
-
 /* Dump memory */
 void
 DumpMem(char *Address, char *Asize, int memory_id)
diff --git a/src/memory.h b/src/memory.h
index 451a5c3..c8761e9 100644
--- a/src/memory.h
+++ b/src/memory.h
@@ -79,18 +79,6 @@ stack_pop8(void);
 uint16_t
 stack_pop16(void);
 
-void
-psw_set_cy(void);
-
-void
-psw_clr_cy(void);
-
-void
-psw_write_cy(int cy);
-
-int
-psw_read_cy(void);
-
 void
 DumpMem(char *Address, char *Asize, int memory_id);
 
diff --git a/src/opcode2c.pl b/src/opcode2c.pl
index bbd1d7a..50c3794 100755
--- a/src/opcode2c.pl
+++ b/src/opcode2c.pl
@@ -51,6 +51,7 @@ print INST_IMP "#define INSTRUCTIONS_8051_M 1\n\n\n";
 print INST_IMP "#include \"reg8051.h\"\n";
 print INST_IMP "#include \"cpu8051.h\"\n";
 print INST_IMP "#include \"memory.h\"\n";
+print INST_IMP "#include \"psw.h\"\n";
 print INST_IMP "#include \"instructions_8051.h\"\n\n\n";
 
 # Header for disasm.h
diff --git a/src/psw.c b/src/psw.c
new file mode 100644
index 0000000..2210d85
--- /dev/null
+++ b/src/psw.c
@@ -0,0 +1,63 @@
+/*
+ * psw.c
+ *
+ * Copyright (C) 2013 Hugo Villeneuve <hugo@hugovil.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include "common.h"
+#include "reg8051.h"
+#include "memory.h"
+
+void
+psw_write_cy(int cy)
+{
+	u_int8_t psw = memory_read8(INT_MEM_ID, _PSW_);
+
+	if (cy)
+		psw |= 0x80;  /* Set */
+	else
+		psw &= ~0x80; /* Clear */
+
+	memory_write8(INT_MEM_ID, _PSW_, psw); /* Save updated value */
+}
+
+void
+psw_set_cy(void)
+{
+	u_int8_t psw = memory_read8(INT_MEM_ID, _PSW_);
+
+	psw |= 0x80;
+
+	memory_write8(INT_MEM_ID, _PSW_, psw); /* Save updated value */
+}
+
+void
+psw_clr_cy(void)
+{
+	u_int8_t psw = memory_read8(INT_MEM_ID, _PSW_);
+
+	psw &= ~0x80;
+
+	memory_write8(INT_MEM_ID, _PSW_, psw); /* Save updated value */
+}
+
+/* Returns 0 or 1 */
+int
+psw_read_cy(void)
+{
+	return memory_read8(INT_MEM_ID, _PSW_) >> 7;
+}
diff --git a/src/psw.h b/src/psw.h
new file mode 100644
index 0000000..78d700f
--- /dev/null
+++ b/src/psw.h
@@ -0,0 +1,38 @@
+/*
+ * psw.h
+ *
+ * Copyright (C) 2013 Hugo Villeneuve <hugo@hugovil.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef PSW_H
+#define PSW_H 1
+
+#include <sys/types.h>
+
+void
+psw_set_cy(void);
+
+void
+psw_clr_cy(void);
+
+void
+psw_write_cy(int cy);
+
+int
+psw_read_cy(void);
+
+#endif /* PSW_H */