pip.h62

SEED的VPM642测试程序-板级支持库

        .endm

;
;# ======== PIP_config ========
;
;# Preconditions:
;#	none
;#
;# Postconditions:
;#	none
;#
;
	.asg    "", PIP_config$regs
PIP_config	.macro _gNumEmbed, _gNextId
	.endm

;
;# ======== PIP_end ========
;
;# Preconditions:
;#	none
;#
;# Postconditions:
;#	none
;#
;
	.asg    "", PIP_end$regs
PIP_end	.macro
	.endm

;
;# ======== PIP_init ========
;
;# Preconditions:
;#	none
;#
;# Postconditions:
;#	none
;#
;# Dependencies:
;#	none
;#
;
	.asg    "", PIP_init$regs
PIP_init	.macro
	.endm

;
;# ======== PIP_alloc ========
;
;# Preconditions:
;#      a4 = address of the pipe object
;#      pipe.writerNumFrames > 0
;#
;# Postconditions:
;#	none
;#
;# Constraints and Calling Environment:
;#      Before calling PIP_alloc, a function should check the writerNumFrames
;#      member of the PIP_Obj structure to make sure it is greater than 0
;#      (i.e., that at least one empty frame is available).
;#
;# Note:
;#      Registers used by 'notifyWriter' functions might be modified too.
;#
;
        .asg "a1,a4,a5,b3,:PIP_F_take$regs:", PIP_alloc$regs
PIP_alloc       .macro dummy
        CHK_void PIP_alloc, dummy

	mvkl PIP_F_take,b3
	mvkh PIP_F_take,b3
	b  b3			; start branch to frame take function

				; form offset of writerNumFrames in PIP_Obj
        mvk (PIP_O_TLBASE + PIP_O_NUMFRAMES),a1 

        addu a4,a1,a5:a4	; form address of writerNumFrames

	mvkl pipa?,b3		; set temp return pointer to here
	mvkh pipa?,b3

	nop
pipa?:	
 
        .endm
 

;
;# ======== PIP_put ========
;
;# Preconditions:
;#      a4 = address of the pipe object
;#
;# Postconditions:
;#	none
;#
;# Note:
;#      Registers used by 'notifyReader' functions might be modified too.
;#
;
        .asg "a0,a1,a4,a5,b3,b4,:PIP_F_give$regs:", PIP_put$regs
PIP_put	.macro dummy
        CHK_void PIP_put, dummy

	mvkl PIP_F_give, b3
	mvkh PIP_F_give, b3
				; form offset of writerSize in PIP_Obj
        mvk (PIP_O_TLBASE + PIP_O_FSIZE),a1 
        addu a4,a1,a1:a0	; form address of writerSize in a0 
	ldw *a0,b4		; load writerSize into b4

	b  b3			; start branch to frame give function

				; form offset of writerCurdesc in PIP_Obj
        mvk (PIP_O_TLBASE + PIP_O_CURDESC),a1 
        addu a4,a1,a5:a4	; form address of writerCurdesc in a4
	mvkl pipp?,b3		; set temp return pointer to here
	mvkh pipp?,b3
	nop
pipp?:	
 
        .endm


;
;# ======== PIP_get ========
;
;# Preconditions:
;#      a4 = address of the pipe object
;#      pipe.readerNumFrames > 0
;#
;# Postconditions:
;#      none
;#
;# Constraints and Calling Environment:
;#      Before calling PIP_get, a function should check the readerNumFrames
;#      member of the PIP_Obj structure to make sure it is greater than 0
;#      (i.e., at least one full frame is available).
;#
;# Note:
;#      Registers used by 'notifyReader' functions might be modified too.
;#
;
        .asg "a1,a4,a5,b3,:PIP_F_take$regs:", PIP_get$regs
PIP_get         .macro dummy
        CHK_void PIP_get, dummy

	mvkl PIP_F_take, b3
	mvkh PIP_F_take, b3

	b  b3			; start branch to frame take function

				; form offset of readerNumFrames in PIP_Obj
        mvk (PIP_O_HDBASE + PIP_O_NUMFRAMES),a1 

        addu a4,a1,a5:a4	; form address of readerNumFrames

	mvkl pipg?,b3		; set temp return pointer to here
	mvkh pipg?,b3
	nop

pipg?:
 
        .endm


;
;# ======== PIP_free ========
;
;# Preconditions:
;#      a4 = address of the pipe object
;#
;# Postconditions:
;#	none
;#
;# Note:
;#      Registers used by 'notifyWriter' functions might be modified too.
;#
;
        .asg "a1,a4,a5,b3,b4,:PIP_F_give$regs:", PIP_free$regs
PIP_free .macro dummy
        CHK_void PIP_free, dummy

	mvkl PIP_F_give,b3
	mvkh PIP_F_give,b3

	ldw *a4,b4 		; fetch framesize from 'threshold' in PIP_Obj

	b  b3			; start branch to frame give function

				; form offset of readerCurdesc in PIP_Obj
        mvk (PIP_O_HDBASE + PIP_O_CURDESC),a1 
        addu a4,a1,a5:a4	; form address of readerCurdesc in a4

	mvkl pipf?,b3		; set temp return pointer to here
	mvkh pipf?,b3
	nop

pipf?:
 
        .endm


;
;# ======== PIP_startup ========
;
;# 
;# Preconditions:
;#	none
;#
;# Postconditions:
;#	none
;#
;# Dependencies:
;#	Must come before HWI_startup to allow pipes to be ready before ISRs are
;#	taken and I/O starts.
;#
;
	.asg "a4,b3,b4,:PIP_F_start$regs:", PIP_startup$regs
PIP_startup	.macro dummy
	CHK_void PIP_startup, dummy

	; expand startup code only if some PIP objects are configured
	.if((PIP$ + PIP_gNumEmbed) !=0 )
 	    mvkl PIP_F_start,b4		; set up for far branch
	    mvkh PIP_F_start,b4
	    b b4			; start branch to startup function
	    mvkl PIP_D_tabbeg,a4	; set a4 for PIP_F_start call
	    mvkh PIP_D_tabbeg,a4
	    nop
	    mvkl pips?,b3		; set return for here
	    mvkh pips?,b3
	.endif

pips?:	

	.endm

;
;# ======== PIP_readprobeSET ========
;  Attach named probe to the named pipe's reader
;
;  Currently not implemented for the C6x.
;#
;# Preconditions:
;#      none
;#
;# Postconditions:
;#      none
;#
;
        .asg "", PIP_readprobeSET$regs
PIP_readprobeSET        .macro dummy
 
	.wmsg "PIP_readprobeSET not implemented for C6x."

        .endm


;
;# ======== PIP_readprobeCLR ========
;  Disable probing on a pipe's reader 
;#
;# Preconditions:
;#	none
;#
;# Postconditions:
;#	none
;#
;
	.asg	"", PIP_readprobeCLR$regs
PIP_readprobeCLR	.macro dummy

	.wmsg "PIP_readprobeCLR not implemented for C6x."

	.endm


;
;# ======== PIP_writeprobeSET ========
;  Attach named probe to the named pipe's writer 
;
;# Preconditions:
;#	none
;#
;# Postconditions:
;#	none
;#
;
	.asg	"", PIP_writeprobeSET$regs
PIP_writeprobeSET	.macro dummy

	.wmsg "PIP_writeprobeSET not implemented for C6x."

	.endm

;
;# ======== PIP_writeprobeCLR ========
;  Disable probing on a pipe's writer
;#
;# Preconditions:
;#      none
;#
;# Postconditions:
;#      none
;#
;
        .asg    "", PIP_writeprobeCLR$regs
PIP_writeprobeCLR       .macro dummy
 
	.wmsg "PIP_writeprobeCLR not implemented for C6x."

        .endm
 
        .endif          ; if PIP_ is not defined