Apple-2-SW/prog8
1
0
Fork 0
mirror of https://github.com/irmen/prog8.git synced 2024-12-24 01:29:28 +00:00
Code Issues Projects Releases Wiki Activity

fix reset_system() on PET, added some missing kernal routines

Browse Source
This commit is contained in:
Irmen de Jong 2023-08-12 23:31:58 +02:00
parent 151a206617
commit 923367296d
1 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
compiler/res/prog8lib/pet32/syslib.p8
View File

@ -1,5 +1,6 @@
; Prog8 definitions for the Commodore PET
; Including memory registers, I/O registers, Basic and Kernal subroutines.
; see: https://www.pagetable.com/?p=926 , http://www.zimmers.net/cbmpics/cbm/PETx/petmem.txt
cbm {
; Commodore (CBM) common variables, vectors and kernal routines
@ -27,6 +28,10 @@ romsub $FFC9 = CHKOUT(ubyte logical @ X) clobbers(A,X) ; define an outp
romsub $FFCC = CLRCHN() clobbers(A,X) ; restore default devices
romsub $FFCF = CHRIN() clobbers(X, Y) -> ubyte @ A ; input a character (for keyboard, read a whole line from the screen) A=byte read.
romsub $FFD2 = CHROUT(ubyte char @ A) ; output a character
romsub $FFE1 = STOP() clobbers(X) -> bool @ Pz, ubyte @ A ; check the STOP key (and some others in A)
romsub $FFE4 = GETIN() clobbers(X,Y) -> bool @Pc, ubyte @ A ; get a character
romsub $FFE7 = CLALL() clobbers(A,X) ; close all files
romsub $FFEA = UDTIM() clobbers(A,X) ; update the software clock
}
@ -71,8 +76,6 @@ asmsub cleanup_at_exit() {
; Soft-reset the system back to initial power-on Basic prompt.
%asm {{
sei
lda #0
sta $ff00 ; default bank 15
jmp (cbm.RESET_VEC)
}}
}