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@ -169,20 +169,18 @@ cx16 {
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; ---- Commander X-16 additions on top of C64 kernal routines ----
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; spelling of the names is taken from the Commander X-16 rom sources
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; TODO specify the correct clobbers for alle these functions, for simplicity all 3 regs are marked clobbered atm
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; supported C128 additions
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romsub $ff4a = close_all() clobbers(A,X,Y)
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romsub $ff59 = lkupla() clobbers(A,X,Y)
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romsub $ff5c = lkupsa() clobbers(A,X,Y)
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romsub $ff4a = close_all(ubyte device @A) clobbers(A,X,Y)
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romsub $ff59 = lkupla(ubyte la @A) clobbers(A,X,Y)
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romsub $ff5c = lkupsa(ubyte sa @Y) clobbers(A,X,Y)
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romsub $ff5f = screen_set_mode(ubyte mode @A) clobbers(A, X, Y) -> ubyte @Pc
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romsub $ff62 = screen_set_charset(ubyte charset @A, uword charsetptr @XY) clobbers(A,X,Y) ; incompatible with C128 dlchr()
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romsub $ff65 = pfkey() clobbers(A,X,Y)
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romsub $ff6e = jsrfar() clobbers(A,X,Y)
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romsub $ff74 = fetch() clobbers(A,X,Y)
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romsub $ff77 = stash() clobbers(A,X,Y)
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romsub $ff7a = cmpare() clobbers(A,X,Y)
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romsub $ff7d = primm() clobbers(A,X,Y)
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; not yet supported: romsub $ff65 = pfkey() clobbers(A,X,Y)
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romsub $ff6e = jsrfar()
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romsub $ff74 = fetch(ubyte bank @X, ubyte index @Y) clobbers(X) -> ubyte @A
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romsub $ff77 = stash(ubyte data @A, ubyte bank @X, ubyte index @Y) clobbers(X)
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romsub $ff7a = cmpare(ubyte data @A, ubyte bank @X, ubyte index @Y) clobbers(X)
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romsub $ff7d = primm()
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; X16 additions
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romsub $ff44 = macptr() clobbers(A,X,Y)
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@ -193,7 +191,9 @@ romsub $ff71 = mouse_scan() clobbers(A, X, Y)
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romsub $ff53 = joystick_scan() clobbers(A, X, Y)
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romsub $ff56 = joystick_get(ubyte joynr @A) -> ubyte @A, ubyte @X, ubyte @Y
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romsub $ff4d = clock_set_date_time() clobbers(A, X, Y) ; args: r0, r1, r2, r3L
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romsub $ff50 = clock_get_date_time() clobbers(A) ; outout args: r0, r1, r2, r3L
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romsub $ff50 = clock_get_date_time() clobbers(A, X, Y) ; outout args: r0, r1, r2, r3L
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; TODO specify the correct clobbers for alle these functions below, we now assume all 3 regs are clobbered
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; high level graphics & fonts
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romsub $ff20 = GRAPH_init() clobbers(A,X,Y) ; uses vectors=r0
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@ -10,6 +10,7 @@ TODO
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- see if we can group some errors together for instance the (now single) errors about unidentified symbols
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- use VIC banking to move up the graphics bitmap memory location. Don't move it under the ROM though as that would require IRQ disabling and memory bank swapping for every bitmap manipulation
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- add some primitives/subroutines/examples for using custom char sets, copying the default charset.
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- recursive subroutines? via %option recursive, allocate all params and local vars on estack, don't allow nested subroutines, can begin by first not allowing any local variables just fixing the parameters
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More optimizations
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^^^^^^^^^^^^^^^^^^
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