os_cpu_a.h

mega16 ucos操作系统

;*******************************************************************************
;                                               uC/OS-II
;                                         The Real-Time Kernel
;
;                                       ATmega128  Specific code
;                                           ICC AVR Compiler
;
;
; File     : OS_CPU_A.H
; By       : Jean J. Labrosse
;*******************************************************************************


;********************************************************************************************************
;                                            BIT DEFINITIONS
;********************************************************************************************************

BIT00   = 0x01
BIT01   = 0x02
BIT02   = 0x04
BIT03   = 0x08
BIT04   = 0x10
BIT05   = 0x20
BIT06   = 0x40
BIT07   = 0x80
;*******************************************************************************
;                 I/O PORT ADDRESSES
;*******************************************************************************


SREG    = 0x3F
SPH     = 0x3E
SPL     = 0x3D
TCNT0   = 0x32


;*******************************************************************************
;                MACROS
;*******************************************************************************

				; Push registers
				.macro PUSHRS
                ST      -Y,R0	
                ST      -Y,R1
                ST      -Y,R2
                ST      -Y,R3
                ST      -Y,R4
                ST      -Y,R5
                ST      -Y,R6
                ST      -Y,R7
                ST      -Y,R8
                ST      -Y,R9
                ST      -Y,R10
                ST      -Y,R11
                ST      -Y,R12
                ST      -Y,R13
                ST      -Y,R14
                ST      -Y,R15
                ST      -Y,R16
                ST      -Y,R17
                ST      -Y,R18
                ST      -Y,R19
                ST      -Y,R20
                ST      -Y,R21
                ST      -Y,R22
                ST      -Y,R23
                ST      -Y,R24
                ST      -Y,R25
                ST      -Y,R26
                ST      -Y,R27
                ST      -Y,R30
                ST      -Y,R31               
				.endmacro

				; Pop registers
                .macro POPRS                
                LD      R31,Y+
                LD      R30,Y+
                LD      R27,Y+
                LD      R26,Y+
                LD      R25,Y+
                LD      R24,Y+
                LD      R23,Y+
                LD      R22,Y+
                LD      R21,Y+
                LD      R20,Y+
                LD      R19,Y+
                LD      R18,Y+
                LD      R17,Y+
                LD      R16,Y+
                LD      R15,Y+
                LD      R14,Y+
                LD      R13,Y+
                LD      R12,Y+
                LD      R11,Y+
                LD      R10,Y+
                LD      R9,Y+
                LD      R8,Y+
                LD      R7,Y+
                LD      R6,Y+
                LD      R5,Y+
                LD      R4,Y+
                LD      R3,Y+
                LD      R2,Y+
                LD      R1,Y+
                LD      R0,Y+
                .endmacro

				; Push stack pointer
                .macro PUSHSP
                IN      R16,SPH
                ST      -Y,R16
                IN      R16,SPL
                ST      -Y,R16
                .endmacro

				; Pop stack pointer
                .macro POPSP
                LD      R16,Y+
                OUT     SPL,R16
                LD      R16,Y+
                OUT     SPH,R16
                .endmacro

				;Push SREG
				.macro PUSHSREG
                IN      R16,SREG
                ST      -Y,R16
                .endmacro

				; Pop SREG
                .macro POPSREG
                LD      R16,Y+
				CBR     R16,BIT07
                OUT     SREG,R16
				.endmacro