?? c5xx.inc
字號:
;**************************************************************************
;
; C5xx Workshop Labs
;
; Include file for processor setup
;
;
;**************************************************************************
*
* Setup PMST
*
stm #0000000011100000b,PMST ; stm #1111111110100000b,PMST
* ||||||||||||||||
* ||||||||||||++++- dont care
* |||||||||||+----- AVIS
* ||||||||||+------ OVLY = 1 internal prg RAM
* |||||||||+------- MP / MC = 1 ROM disabled
* +++++++++-------- IPTR = 0x001 vectors at 0x0100
*
* Setup ST1
*
*
stm #000011101000000b,ST1
* |||||||||||||||
* ||||||||||+++++----- ASM = 0 = Accumulator shift
* |||||||||+---------- CMPT = 0 Compatibility
* ||||||||+----------- FRCT = 1 Fract Mode
* |||||||+------------ C16 = 0 Dual 16 bit mode
* ||||||+------------- SXM = 1 Sign extend
* |||||+-------------- OVM = 1 Saturate mode
* ||||+--------------- reserved
* |||+---------------- INTM = 1 Interrupt mask
* ||+----------------- HM = 0 Hold mode
* |+------------------ CPL = 0 Non Compiler mode
* +------------------- BRAF = 0 no block repeat act.
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