18-5 __________________________________________________________________________________________________________
MAXQ7667 User’s Guide
Function: moveDP1
Summary: Reads the byte/word value pointed to by DP[1].
I
nputs:
D
P[1]: Address to read from.
Outputs: GR: Data byte/word read.
Destroys: Selects DP[1] in DPC.
Notes:
1) Before calling this function, DPC should be set appropriately to configure DP[1] for byte or word mode.
2) The address passed to this function should be based on the data memory mapping for the utility ROM, as explained in
Section 2.
3) This function automatically selects DP[1] as the data pointer before reading the byte/word value.
Function: moveDP1inc
Summary: Reads the byte/word value pointed to by DP[1], then increments DP[1].
Inputs: DP[1]: Address to read from.
Outputs: GR: Data byte/word read.
DP[1] is incremented.
Destroys: Selects DP[1] in DPC.
Notes:
1) Before calling this function, DPC should be set appropriately to configure DP[1] for byte or word mode.
2) The address passed to this function should be based on the data memory mapping for the utility ROM, as explained in
Section 2.
3) This function automatically selects DP[1] as the data pointer before reading the byte/word value.
Function: moveDP1dec
Summary: Reads the byte/word value pointed to by DP[1], then decrements DP[1].
Inputs: DP[1]: Address to read from.
Outputs: GR: Data byte/word read.
DP[1] is decremented.
Destroys: Selects DP[1] in DPC.
Notes:
1) Before calling this function, DPC should be set appropriately to configure DP[1] for byte or word mode.
2) The address passed to this function should be based on the data memory mapping for the utility ROM, as explained in
Section 2.
3) This function automatically selects DP[1] as the data pointer before reading the byte/word value.
Function: moveFP
Summary: Reads the byte/wor
d value pointed to by BP[OFFS].
Inputs: BP[OFFS]: Address to read from.
Outputs: GR: Data byte/word read.
Destroys: Selects BP in DPC.
Notes:
1) Before calling this function, DPC should be set appropriately to configure BP[OFFS] for byte or word mode.
2) The addr
ess passed to this function should be based on the data memor
y mapping for the utility ROM, as explained in
Section 2.
3) This function automatically selects BP[OFFS] as the data pointer before reading the byte/word value.
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