Add source files for z180

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5426 42af7a65-404d-4744-a932-0658087f49c3

9 files changed, 190 insertions, 126 deletions

diff --git a/nuttx/arch/z80/include/arch.h b/nuttx/arch/z80/include/arch.h
index 112fcde3a..0a0673e03 100644
--- a/nuttx/arch/z80/include/arch.h
+++ b/nuttx/arch/z80/include/arch.h
@@ -33,12 +33,12 @@
  *
  ****************************************************************************/
 
-/* This file should never be included directed but, rather,
- * only indirectly through nuttx/arch.h
+/* This file should never be included directed but, rather, only indirectly
+ * through nuttx/arch.h
  */
 
-#ifndef __ARCH_ARCH_H
-#define __ARCH_ARCH_H
+#ifndef __ARCH_Z80_INCLUDE_ARCH_H
+#define __ARCH_Z80_INCLUDE_ARCH_H
 
 /****************************************************************************
  * Included Files
@@ -47,7 +47,7 @@
 #include <arch/chip/arch.h>
 
 /****************************************************************************
- * Definitions
+ * Pre-processor Definitions
  ****************************************************************************/
 
 /****************************************************************************
@@ -66,17 +66,5 @@
  * Public Function Prototypes
  ****************************************************************************/
 
-#ifdef __cplusplus
-#define EXTERN extern "C"
-extern "C" {
-#else
-#define EXTERN extern
-#endif
-
-#undef EXTERN
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* __ARCH_ARCH_H */
+#endif /* __ARCH_Z80_INCLUDE_ARCH_H */
 
diff --git a/nuttx/arch/z80/include/io.h b/nuttx/arch/z80/include/io.h
index dacc0bc5b..e07a071d9 100644
--- a/nuttx/arch/z80/include/io.h
+++ b/nuttx/arch/z80/include/io.h
@@ -34,8 +34,8 @@
  *
  ****************************************************************************/
 
-#ifndef __ARCH_IO_H
-#define __ARCH_IO_H
+#ifndef __ARCH_Z80_INCLUDE_IO_H
+#define __ARCH_Z80_INCLUDE_IO_H
 
 /****************************************************************************
  * Included Files
@@ -44,7 +44,7 @@
 #include <arch/chip/io.h>
 
 /****************************************************************************
- * Definitions
+ * Pre-processor Definitions
  ****************************************************************************/
 
 /****************************************************************************
@@ -59,18 +59,4 @@
  * Public Function Prototypes
  ****************************************************************************/
 
-#ifndef __ASSEMBLY__
-#ifdef __cplusplus
-#define EXTERN extern "C"
-extern "C" {
-#else
-#define EXTERN extern
-#endif
-
-#undef EXTERN
-#ifdef __cplusplus
-}
-#endif
-#endif
-
-#endif /* __ARCH_IO_H */
+#endif /* __ARCH_Z80_INCLUDE_IO_H */
diff --git a/nuttx/arch/z80/include/irq.h b/nuttx/arch/z80/include/irq.h
index a617540a9..7d482df49 100644
--- a/nuttx/arch/z80/include/irq.h
+++ b/nuttx/arch/z80/include/irq.h
@@ -48,7 +48,7 @@
 #include <arch/chip/irq.h>
 
 /****************************************************************************
- * Definitions
+ * Pre-processor Definitions
  ****************************************************************************/
 
 /****************************************************************************
@@ -63,19 +63,5 @@
  * Public Function Prototypes
  ****************************************************************************/
 
-#ifndef __ASSEMBLY__
-#ifdef __cplusplus
-#define EXTERN extern "C"
-extern "C" {
-#else
-#define EXTERN extern
-#endif
-
-#undef EXTERN
-#ifdef __cplusplus
-}
-#endif
-#endif
-
 #endif /* __ARCH_Z80_INCLUDE_IRQ_H */
 
diff --git a/nuttx/arch/z80/include/limits.h b/nuttx/arch/z80/include/limits.h
index 3cfd65dc6..3013ec8f4 100644
--- a/nuttx/arch/z80/include/limits.h
+++ b/nuttx/arch/z80/include/limits.h
@@ -33,17 +33,17 @@
  *
  ****************************************************************************/
 
-#ifndef __ARCH_LIMITS_H
-#define __ARCH_LIMITS_H
+#ifndef __ARCH_Z80_INCLUDE_LIMITS_H
+#define __ARCH_Z80_INCLUDE_LIMITS_H
 
 /****************************************************************************
- * Included Files
+ * Pre-processor Definitions
  ****************************************************************************/
 
 #include <arch/chip/limits.h>
 
 /****************************************************************************
- * Definitions
+ * Pre-processor Definitions
  ****************************************************************************/
 
-#endif /* __ARCH_LIMITS_H */
+#endif /* __ARCH_Z80_INCLUDE_LIMITS_H */
diff --git a/nuttx/arch/z80/include/serial.h b/nuttx/arch/z80/include/serial.h
index 2688c045f..2997cd4fa 100644
--- a/nuttx/arch/z80/include/serial.h
+++ b/nuttx/arch/z80/include/serial.h
@@ -33,8 +33,8 @@
  *
  ****************************************************************************/
 
-#ifndef __ARCH_Z80_INCLUDE_SERIAL_TYPES_H
-#define __ARCH_Z80_INCLUDE_SERIAL_TYPES_H
+#ifndef __ARCH_Z80_INCLUDE_SERIAL_H
+#define __ARCH_Z80_INCLUDE_SERIAL_H
 
 /****************************************************************************
  * Included Files
@@ -43,7 +43,7 @@
 #include <nuttx/fs/ioctl.h>
 
 /****************************************************************************
- * Definitions
+ * Pre-processor Definitions
  ****************************************************************************/
 
 /****************************************************************************
@@ -54,4 +54,4 @@
  * Public Functions
  ****************************************************************************/
 
-#endif /* __ARCH_Z80_INCLUDE_SERIAL_TYPES_H */
+#endif /* __ARCH_Z80_INCLUDE_SERIAL_H */
diff --git a/nuttx/arch/z80/include/syscall.h b/nuttx/arch/z80/include/syscall.h
index b1894ca34..bc9ebbb11 100644
--- a/nuttx/arch/z80/include/syscall.h
+++ b/nuttx/arch/z80/include/syscall.h
@@ -45,7 +45,7 @@
  ****************************************************************************/
 
 /****************************************************************************
- * Definitions
+ * Pre-processor Definitions
  ****************************************************************************/
 
 /****************************************************************************
@@ -64,19 +64,5 @@
  * Public Function Prototypes
  ****************************************************************************/
 
-#ifndef __ASSEMBLY__
-#ifdef __cplusplus
-#define EXTERN extern "C"
-extern "C" {
-#else
-#define EXTERN extern
-#endif
-
-#undef EXTERN
-#ifdef __cplusplus
-}
-#endif
-#endif
-
 #endif /* __ARCH_Z80_INCLUDE_SYSCALL_H */
 
diff --git a/nuttx/arch/z80/include/types.h b/nuttx/arch/z80/include/types.h
index 5b2b5ff16..5e6a90342 100644
--- a/nuttx/arch/z80/include/types.h
+++ b/nuttx/arch/z80/include/types.h
@@ -37,8 +37,8 @@
 * through sys/types.h
  */
 
-#ifndef __ARCH_TYPES_H
-#define __ARCH_TYPES_H
+#ifndef __ARCH_Z80_INCLUDE_TYPES_H
+#define __ARCH_Z80_INCLUDE_TYPES_H
 
 /****************************************************************************
  * Included Files
@@ -58,4 +58,4 @@
  * Global Function Prototypes
  ****************************************************************************/
 
-#endif /* __ARCH_TYPES_H */
+#endif /* __ARCH_Z80_INCLUDE_TYPES_H */
diff --git a/nuttx/arch/z80/include/z180/chip.h b/nuttx/arch/z80/include/z180/chip.h
index b31c69bcf..f2e140a10 100644
--- a/nuttx/arch/z80/include/z180/chip.h
+++ b/nuttx/arch/z80/include/z180/chip.h
@@ -41,10 +41,36 @@
  * Included Files
  ****************************************************************************/
 
+#ifndef __ASSEMBLY__
+#  include <stdint.h>
+#endif
+
 /****************************************************************************
  * Pre-processor Definitions
  ****************************************************************************/
 
+/* Bits in the Z80 FLAGS register ***************************************************/
+
+#define Z180_C_FLAG      0x01       /* Bit 0: Carry flag */
+#define Z180_N_FLAG      0x02       /* Bit 1: Add/Subtract flag  */
+#define Z180_PV_FLAG     0x04       /* Bit 2: Parity/Overflow flag */
+#define Z180_H_FLAG      0x10       /* Bit 4: Half carry flag */
+#define Z180_Z_FLAG      0x40       /* Bit 5: Zero flag */
+#define Z180_S_FLAG      0x80       /* Bit 7: Sign flag */
+
+/* Register access macros ***********************************************************/
+
+#ifndef __ASSEMBLY__
+
+# define getreg8(a)      (*(volatile uint8_t *)(a))
+# define putreg8(v,a)    (*(volatile uint8_t *)(a) = (v))
+# define getreg16(a)     (*(volatile uint16_t *)(a))
+# define putreg16(v,a)   (*(volatile uint16_t *)(a) = (v))
+# define getreg32(a)     (*(volatile uint32_t *)(a))
+# define putreg32(v,a)   (*(volatile uint32_t *)(a) = (v))
+
+#endif
+
 /* Z800180
  *
  * The 8-bit Z80180 MPU provides the benefits of reduced system costs and
@@ -71,12 +97,12 @@
  *   * Enhanced on the Z8S180 and Z8L180 MPUs
  */
 
-#if   defined(CONFIG_Z180_CHIP_Z8018006VSG) || /* 68-pin PLCC */ \
-      defined(CONFIG_Z180_CHIP_Z8018010VSG) || /* 68-pin PLCC */ \
-      defined(CONFIG_Z180_CHIP_Z8018008VSG) || /* 68-pin PLCC */ \
-      defined(CONFIG_Z180_CHIP_Z8018010FSG) || /* 80-pin QFP (11 pins N/C) */ \
-      defined(CONFIG_Z180_CHIP_Z8018008VEG) || /* 68-pin PLCC */ \
-      defined(CONFIG_Z180_CHIP_Z8018006VEG)    /* 68-pin PLCC */
+#if   defined(CONFIG_ARCH_CHIP_Z8018006VSG) || /* 68-pin PLCC */ \
+      defined(CONFIG_ARCH_CHIP_Z8018010VSG) || /* 68-pin PLCC */ \
+      defined(CONFIG_ARCH_CHIP_Z8018008VSG) || /* 68-pin PLCC */ \
+      defined(CONFIG_ARCH_CHIP_Z8018010FSG) || /* 80-pin QFP (11 pins N/C) */ \
+      defined(CONFIG_ARCH_CHIP_Z8018008VEG) || /* 68-pin PLCC */ \
+      defined(CONFIG_ARCH_CHIP_Z8018006VEG)    /* 68-pin PLCC */
 
 #  undef  HAVE_Z8S180                             /* Not Z8S180 (5V) or Z8L180 (3.3V) core */
 #  define HAVE ROM       0                        /* No on-chip ROM */
@@ -93,14 +119,14 @@
 #  define HAVE_NPAR8     0                        /* No 8-bit parallel ports */
 #  undef  HAVE_IEEE1284                           /* No bidirectional centronics interface (IEEE 1284) */
 
-#elif defined(CONFIG_Z180_CHIP_Z8018006PSG) || /* 64-pin DIP 6 MHz 5V */ \
-      defined(CONFIG_Z180_CHIP_Z8018008FSG) || /* 80-pin QFP (11 pins N/C) 8MHz 5V */ \
-      defined(CONFIG_Z180_CHIP_Z8018010PSG) || /* 64-pin DIP 10MHz 5V */ \
-      defined(CONFIG_Z180_CHIP_Z8018006PEG) || /* 64-pin DIP 6MHz 5V */ \
-      defined(CONFIG_Z180_CHIP_Z8018010VEG) || /* 68-pin PLCC 10MHz 5V*/ \
-      defined(CONFIG_Z180_CHIP_Z8018010PEG) || /* 64-pin DIP 10MHz 5V*/ \
-      defined(CONFIG_Z180_CHIP_Z8018008PSG) || /* 64-pin DIP 8MHz 5V */ \
-      defined(CONFIG_Z180_CHIP_Z8018006FSG)    /* 80-pin QFP (11 pins N/C) 6MHz 5V */
+#elif defined(CONFIG_ARCH_CHIP_Z8018006PSG) || /* 64-pin DIP 6 MHz 5V */ \
+      defined(CONFIG_ARCH_CHIP_Z8018008FSG) || /* 80-pin QFP (11 pins N/C) 8MHz 5V */ \
+      defined(CONFIG_ARCH_CHIP_Z8018010PSG) || /* 64-pin DIP 10MHz 5V */ \
+      defined(CONFIG_ARCH_CHIP_Z8018006PEG) || /* 64-pin DIP 6MHz 5V */ \
+      defined(CONFIG_ARCH_CHIP_Z8018010VEG) || /* 68-pin PLCC 10MHz 5V */ \
+      defined(CONFIG_ARCH_CHIP_Z8018010PEG) || /* 64-pin DIP 10MHz 5V */ \
+      defined(CONFIG_ARCH_CHIP_Z8018008PSG) || /* 64-pin DIP 8MHz 5V */ \
+      defined(CONFIG_ARCH_CHIP_Z8018006FSG)    /* 80-pin QFP (11 pins N/C) 6MHz 5V */
 
 #  undef  HAVE_Z8S180                             /* Not Z8S180 (5V) or Z8L180 (3.3V) core */
 #  define HAVE ROM       0                        /* No on-chip ROM */
@@ -117,10 +143,10 @@
 #  define HAVE_NPAR8     0                        /* No 8-bit parallel ports */
 #  undef  HAVE_IEEE1284                           /* No bidirectional centronics interface (IEEE 1284) */
 
-#elif defined(CONFIG_Z180_CHIP_Z8018000XSO)
-      defined(CONFIG_Z180_CHIP_Z8018010FEG)
-      defined(CONFIG_Z180_CHIP_Z8018000WSO)
-      defined(CONFIG_Z180_CHIP_Z8018008PEG)
+#elif defined(CONFIG_ARCH_CHIP_Z8018000XSO)
+      defined(CONFIG_ARCH_CHIP_Z8018010FEG)
+      defined(CONFIG_ARCH_CHIP_Z8018000WSO)
+      defined(CONFIG_ARCH_CHIP_Z8018008PEG)
 
 #  undef  HAVE_Z8S180                             /* Not Z8S180 (5V) or Z8L180 (3.3V) core */
 #  define HAVE ROM       0                        /* No on-chip ROM */
@@ -158,7 +184,7 @@
  *   Emulation Mode
  */
 
-#elif defined(CONFIG_Z180_CHIP_Z8018110FEG)       /* 100 QFP */
+#elif defined(CONFIG_ARCH_CHIP_Z8018110FEG)       /* 100-pin QFP */
 
 #  undef  HAVE_Z8S180                             /* Not Z8S180 (5V) or Z8L180 (3.3V) core */
 #  define HAVE ROM       0                        /* No on-chip ROM */
@@ -199,11 +225,11 @@
  *   3.3 V and 5 V Version
  */
 
-#elif defined(CONFIG_Z180_CHIP_Z8018233FSG) ||    /* 100-pin QFP */ \
-      defined(CONFIG_Z180_CHIP_Z8018220AEG) ||    /* 100-pin LQFP 20MHz 5V */ \
-      defined(CONFIG_Z180_CHIP_Z8018216FSG) ||    /* 100-pin QFP 16MHz 5V */ \
-      defined(CONFIG_Z180_CHIP_Z8018216ASG) ||    /* 100-pin LQFP */ \
-      defined(CONFIG_Z180_CHIP_Z8018233ASG)       /* 100-pin LQFP 33MHz 5V */
+#elif defined(CONFIG_ARCH_CHIP_Z8018233FSG) ||    /* 100-pin QFP */ \
+      defined(CONFIG_ARCH_CHIP_Z8018220AEG) ||    /* 100-pin LQFP 20MHz 5V */ \
+      defined(CONFIG_ARCH_CHIP_Z8018216FSG) ||    /* 100-pin QFP 16MHz 5V */ \
+      defined(CONFIG_ARCH_CHIP_Z8018216ASG) ||    /* 100-pin LQFP */ \
+      defined(CONFIG_ARCH_CHIP_Z8018233ASG)       /* 100-pin LQFP 33MHz 5V */
 
 #  undef  HAVE_Z8S180                             /* Not Z8S180 (5V) or Z8L180 (3.3V) core */
 #  define HAVE ROM       0                        /* No on-chip ROM */
@@ -244,8 +270,8 @@
  *   7 or 24 Bits of I/O 
  */
 
-#elif defined(CONFIG_Z180_CHIP_Z8019520FSG) ||    /* 100-pin QFP 20MHz 5V */ \
-      defined(CONFIG_Z180_CHIP_Z8019533FSG)       /* 100-pin QFP 33MHz 5V */
+#elif defined(CONFIG_ARCH_CHIP_Z8019520FSG) ||    /* 100-pin QFP 20MHz 5V */ \
+      defined(CONFIG_ARCH_CHIP_Z8019533FSG)       /* 100-pin QFP 33MHz 5V */
 
 #  undef  HAVE_Z8S180                             /* No Z8S180 (5V) or Z8L180 (3.3V) core */
 #  undef  HAVE ROM       0                        /* No 32KB on-chip ROM (z80185 only) */
@@ -285,9 +311,9 @@
  *   * Enhanced on the Z8S180 and Z8L180 MPUs.
  */
 
-#elif defined(CONFIG_Z180_CHIP_Z8L18020VSG) ||    /* 69-pin PLCC */ \
-      defined(CONFIG_Z180_CHIP_Z8L18020FSG) ||    /* 80-pin GFP 20MHz 3.3V */ \
-      defined(CONFIG_Z180_CHIP_Z8L18020PSG)
+#elif defined(CONFIG_ARCH_CHIP_Z8L18020VSG) ||    /* 68-pinn PLCC */ \
+      defined(CONFIG_ARCH_CHIP_Z8L18020FSG) ||    /* 80-pin GFP 20MHz 3.3V */ \
+      defined(CONFIG_ARCH_CHIP_Z8L18020PSG)
 
 #  define HAVE_Z8S180    1                        /* Uses Z8S180 (5V) or Z8L180 (3.3V) core */
 #  define HAVE ROM       0                        /* No on-chip ROM */
@@ -329,9 +355,9 @@
  *   3.3 V and 5 V Version
  */
 
-#elif defined(CONFIG_Z180_CHIP_Z8L18220ASG) ||    /* 100-pin LQFP */ \
-      defined(CONFIG_Z180_CHIP_Z8L18220FSG) ||    /* 100-pin QFP 20MHz 3.3V */ \
-      defined(CONFIG_Z180_CHIP_Z8L18220AEG)
+#elif defined(CONFIG_ARCH_CHIP_Z8L18220ASG) ||    /* 100-pin LQFP */ \
+      defined(CONFIG_ARCH_CHIP_Z8L18220FSG) ||    /* 100-pin QFP 20MHz 3.3V */ \
+      defined(CONFIG_ARCH_CHIP_Z8L18220AEG)
 
 #  define HAVE_Z8S180    1                        /* Uses Z8S180 (5V) or Z8L180 (3.3V) core */
 #  define HAVE ROM       0                        /* No on-chip ROM */
@@ -373,22 +399,22 @@
  *   Package - DIP, PLCC, QFP
  */
 
-#elif defined(CONFIG_Z180_CHIP_Z8S18020VSG) || /* 68-pin PLCC */ \
-      defined(CONFIG_Z180_CHIP_Z8S18020VSG1960) || /* 68-pin PLCC */ \
-      defined(CONFIG_Z180_CHIP_Z8S18033VSG) || /* 68-pin PLCC */ \
-      defined(CONFIG_Z180_CHIP_Z8S18010FSG) || /* 80-pin QFP */ \
-      defined(CONFIG_Z180_CHIP_Z8S18010VEG) || /* 68-pin PLCC */ \
-      defined(CONFIG_Z180_CHIP_Z8S18020VEG) || /* 68-pin PLCC */ \
-      defined(CONFIG_Z180_CHIP_Z8S18010VSG) || /* 68-pin PLCC */ \
-      defined(CONFIG_Z180_CHIP_Z8S18020PSG) || /* 64-pin DIP 10Mhz 5V */ \
-      defined(CONFIG_Z180_CHIP_Z8S18033FSG) || /* 80-pin QFP 33MHz 5V */ \
-      defined(CONFIG_Z180_CHIP_Z8S18033FEG) || /* 80-pin QFP 33MHz 5V */ \
-      defined(CONFIG_Z180_CHIP_Z8S18020FSG) || /* 80-pin QFP 20MHz 5V */ \
-      defined(CONFIG_Z180_CHIP_Z8S18033VEG) || /* 68-pin PLCC 33MHz 5V */ \
-      defined(CONFIG_Z180_CHIP_Z8S18010PSG) || /* 64-pin DIP 10MHz 5V */ \
-      defined(CONFIG_Z180_CHIP_Z8S18020FEG) || \
-      defined(CONFIG_Z180_CHIP_Z8S18010PEG) || \
-      defined(CONFIG_Z180_CHIP_Z8S18010FEG
+#elif defined(CONFIG_ARCH_CHIP_Z8S18020VSG) ||    /* 68-pin PLCC */ \
+      defined(CONFIG_ARCH_CHIP_Z8S18020VSG1960) || /* 68-pin PLCC */ \
+      defined(CONFIG_ARCH_CHIP_Z8S18033VSG) ||    /* 68-pin PLCC */ \
+      defined(CONFIG_ARCH_CHIP_Z8S18010FSG) ||    /* 80-pin QFP */ \
+      defined(CONFIG_ARCH_CHIP_Z8S18010VEG) ||    /* 68-pin PLCC */ \
+      defined(CONFIG_ARCH_CHIP_Z8S18020VEG) ||    /* 68-pin PLCC */ \
+      defined(CONFIG_ARCH_CHIP_Z8S18010VSG) ||    /* 68-pin PLCC */ \
+      defined(CONFIG_ARCH_CHIP_Z8S18020PSG) ||    /* 64-pin DIP 10Mhz 5V */ \
+      defined(CONFIG_ARCH_CHIP_Z8S18033FSG) ||    /* 80-pin QFP 33MHz 5V */ \
+      defined(CONFIG_ARCH_CHIP_Z8S18033FEG) ||    /* 80-pin QFP 33MHz 5V */ \
+      defined(CONFIG_ARCH_CHIP_Z8S18020FSG) ||    /* 80-pin QFP 20MHz 5V */ \
+      defined(CONFIG_ARCH_CHIP_Z8S18033VEG) ||    /* 68-pin PLCC 33MHz 5V */ \
+      defined(CONFIG_ARCH_CHIP_Z8S18010PSG) ||    /* 64-pin DIP 10MHz 5V */ \
+      defined(CONFIG_ARCH_CHIP_Z8S18020FEG) || \
+      defined(CONFIG_ARCH_CHIP_Z8S18010PEG) || \
+      defined(CONFIG_ARCH_CHIP_Z8S18010FEG
 
 #  define HAVE_Z8S180    1                        /* Uses Z8S180 (5V) or Z8L180 (3.3V) core */
 #  define HAVE ROM       0                        /* No on-chip ROM */
diff --git a/nuttx/arch/z80/include/z80/chip.h b/nuttx/arch/z80/include/z80/chip.h
new file mode 100644
index 000000000..9f77e395c
--- /dev/null
+++ b/nuttx/arch/z80/include/z80/chip.h
@@ -0,0 +1,92 @@
+/************************************************************************************
+ * arch/z80/include/z80/chip.h
+ * arch/z80/include/chip/chip.h
+ *
+ *   Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+#ifndef __ARCH_Z80_SRC_Z80_CHIP_H
+#define __ARCH_Z80_SRC_Z80_CHIP_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#ifndef __ASSEMBLY__
+#  include <stdint.h>
+#endif
+
+/************************************************************************************
+ * Pre-processor Definitions
+ ************************************************************************************/
+
+/* Bits in the Z80 FLAGS register ***************************************************/
+
+#define Z80_C_FLAG      0x01       /* Bit 0: Carry flag */
+#define Z80_N_FLAG      0x02       /* Bit 1: Add/Subtract flag  */
+#define Z80_PV_FLAG     0x04       /* Bit 2: Parity/Overflow flag */
+#define Z80_H_FLAG      0x10       /* Bit 4: Half carry flag */
+#define Z80_Z_FLAG      0x40       /* Bit 5: Zero flag */
+#define Z80_S_FLAG      0x80       /* Bit 7: Sign flag */
+
+/* Register access macros ***********************************************************/
+
+#ifndef __ASSEMBLY__
+
+# define getreg8(a)           (*(volatile uint8_t *)(a))
+# define putreg8(v,a)         (*(volatile uint8_t *)(a) = (v))
+# define getreg16(a)          (*(volatile uint16_t *)(a))
+# define putreg16(v,a)        (*(volatile uint16_t *)(a) = (v))
+# define getreg32(a)          (*(volatile uint32_t *)(a))
+# define putreg32(v,a)        (*(volatile uint32_t *)(a) = (v))
+
+#endif
+
+/************************************************************************************
+ * Public Function Prototypes
+ ************************************************************************************/
+
+#ifndef __ASSEMBLY__
+#ifdef __cplusplus
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+#undef EXTERN
+#ifdef __cplusplus
+}
+#endif
+#endif
+
+#endif  /* __ARCH_Z80_SRC_Z80_CHIP_H */