From 67d25d837ac55f28a366c0a3b262e439a6e75fc3 Mon Sep 17 00:00:00 2001 From: Dimitri Sokolyuk Date: Sat, 19 Aug 2017 12:15:28 +0200 Subject: Add AmForth --- .../msp430/devices/msp430fr5969/words/cold.asm | 30 ++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 amforth-6.5/msp430/devices/msp430fr5969/words/cold.asm (limited to 'amforth-6.5/msp430/devices/msp430fr5969/words/cold.asm') diff --git a/amforth-6.5/msp430/devices/msp430fr5969/words/cold.asm b/amforth-6.5/msp430/devices/msp430fr5969/words/cold.asm new file mode 100644 index 0000000..6abf0ba --- /dev/null +++ b/amforth-6.5/msp430/devices/msp430fr5969/words/cold.asm @@ -0,0 +1,30 @@ +CODEHEADER(XT_COLD,4,"cold") +main: ; Debugger requires the 'main' symbol. +reset: + mov #5A80h, &WDTCTL ; Watchdog off + + mov #0A500h, &MPUCTL0 ; Write password to enable access to MPU + mov FLASHSTART>>4, &MPUSEGB1 ; B1 = Start of memory + mov AMFORTH_START>>4, &MPUSEGB2 ; B2 = 0x10000 (Segment 3 is upper mem) + mov #7577h, &MPUSAM ; write protect core system. + mov #0A501h, &MPUCTL0 ; Enable MPU + mov.b #0, &MPUCTL0+1 ; Disable MPU access + + ;------------------------------------------------------------------------------ + ; Init Clock + + mov #0A500h, &CSCTL0 ; Enable access to clock registers + mov #0, &CSCTL3 ; Set all clock dividers to /1 + mov.b #0, &CSCTL0+1 ; Disable access to clock registers + + + ;------------------------------------------------------------------------------ + ; Forth registers + MOV #RSTACK,SP ; set up stack + MOV #PSTACK,PSP + MOV #UAREA,UP ; initial user pointer + + CLR R15 + ; now hand over to Forth with WARM (a colon word) + MOV #XT_WARM+2,IP + NEXT -- cgit v1.2.3