//////////////////////////////////////////////////////////////////
// Function: SRAM access function for SACM_DVR Auto Mode
//////////////////////////////////////////////////////////////////
.include hardware.inc
.public _SP_InitWriteSRAM
.public F_SP_InitWriteSRAM
.CODE
_SP_InitWriteSRAM: .proc
F_SP_InitWriteSRAM:
push r1 to [sp]
pop r1 from [sp]
retf
.endp
.public F_SP_InitReadSRAM
.public _SP_InitReadSRAM
_SP_InitReadSRAM: .PROC
F_SP_InitReadSRAM:
push r1 to [sp]
pop r1 from [sp]
retf
.ENDP
////////////////////////////////////////////////////////////////////////////////
// Function: Write a byte to SRAM on SACM_DVR Auto mode
// Input: R1: 16 bits Addr[b15..b0]
// R2: 16 bits Data
// Used: R1,R2,R3
////////////////////////////////////////////////////////////////////////////////
.PUBLIC F_SP_WriteSRAM
F_SP_WriteSRAM:
push r1,r3 to [sp]
// Save low byte
[P_IOB_Data] = R1 // set addr.
pop r1,r3 from [sp]
retf
////////////////////////////////////////////////////////////////////////////////
// Function: Read a byte for SRAM on SACM_DVR Auto mode
// Input: R1: 16 bits addr.
// Output: R1: 16 bits Data
// Used: R1,R2,R3,R4
////////////////////////////////////////////////////////////////////////////////
.PUBLIC F_SP_ReadSRAM
F_SP_ReadSRAM:
push r2,r4 to [sp]
pop r2,r4 from [sp] // don't pop r1(return value)
retf
/////////////////////////////////////////////
// Function: Read SRAM for C language
/////////////////////////////////////////////
.public _SP_ReadSRAM
_SP_ReadSRAM: .PROC
push bp to [sp]
pop bp from [sp]
retf
.ENDP
/////////////////////////////////////////////
// Function: Write SRAM for C language
/////////////////////////////////////////////
.public _SP_WriteSRAM
_SP_WriteSRAM: .PROC
push bp to [sp]
pop bp from [sp]
retf
.ENDP
//========================================================================================
// End of sram.asm
//========================================================================================
