mirror of
https://github.com/irmen/prog8.git
synced 2024-11-22 15:33:02 +00:00
changed syntax of subroutine parameters (now the same as vardecls)
This commit is contained in:
Irmen de Jong
parent
00ad285d3f
commit
c1204b83bd
@ -223,9 +223,7 @@ statement_block :
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;
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sub_params : sub_param (',' EOL? sub_param)* ;
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sub_param : identifier ':' datatype;
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sub_params : vardecl (',' EOL? vardecl)* ;
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sub_returns : datatype (',' EOL? datatype)* ;
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@ -238,7 +236,7 @@ asmsub_address : '=' address=integerliteral ;
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asmsub_params : asmsub_param (',' EOL? asmsub_param)* ;
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asmsub_param : identifier ':' datatype '@' (registerorpair | statusregister);
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asmsub_param : vardecl '@' (registerorpair | statusregister);
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clobber : register (',' register)* ;
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@ -31,7 +31,7 @@
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float[len(zcoor)] rotatedz
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sub start() {
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while(1) {
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while true {
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if irq.time_changed {
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irq.time_changed = 0
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;vm_gfx_clearscr(0)
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@ -49,7 +49,7 @@
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}
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}
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sub rotate_vertices(t: float) {
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sub rotate_vertices(float t) {
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; rotate around origin (0,0,0)
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; set up the 3d rotation matrix values
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@ -80,11 +80,11 @@
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sub draw_edges() {
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sub toscreenx(x: float, z: float) -> word {
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sub toscreenx(float x, float z) -> word {
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return fintw(x/(4.2+z) * flt(height)) + width // 2
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}
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sub toscreeny(y: float, z: float) -> word {
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sub toscreeny(float y, float z) -> word {
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return fintw(y/(4.2+z) * flt(height)) + height // 2
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}
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@ -31,7 +31,7 @@
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float[len(zcoor)] rotatedz
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sub start() {
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while(1) {
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while true {
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if irq.time_changed {
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irq.time_changed = 0
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vm_gfx_clearscr(0)
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@ -48,7 +48,7 @@
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}
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}
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sub rotate_vertices(t: float) {
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sub rotate_vertices(float t) {
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; rotate around origin (0,0,0)
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; set up the 3d rotation matrix values
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@ -79,11 +79,11 @@
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sub draw_edges() {
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sub toscreenx(x: float, z: float) -> word {
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sub toscreenx(float x, float z) -> word {
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return fintw(x/(4.2+z) * flt(height)) + width // 2
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}
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sub toscreeny(y: float, z: float) -> word {
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sub toscreeny(float y, float z) -> word {
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return fintw(y/(4.2+z) * flt(height)) + height // 2
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}
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@ -4,15 +4,20 @@
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~ main {
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const uword width = 30
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const uword height = 20
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const ubyte max_iter = 16
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sub start() {
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c64scr.print_string("calculating mandelbrot fractal...\n")
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c64.TIME_HI=0
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c64.TIME_MID=0
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c64.TIME_LO=0
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for ubyte pixely in 0 to height-1 {
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float yy = pixely/flt(height)/0.4-1.0
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float yy = flt(pixely)/height/0.4-1.0
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for ubyte pixelx in 0 to width-1 {
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float xx = pixelx/flt(width)/0.3-2.0
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float xx = flt(pixelx)/width/0.3-2.0
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float xsquared = 0.0
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float ysquared = 0.0
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@ -20,7 +25,7 @@
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float y = 0.0
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ubyte iter = 0
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while (iter<16 and xsquared+ysquared<4.0) {
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while (iter<max_iter and xsquared+ysquared<4.0) {
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y = x*y*2.0 + yy
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x = xsquared - ysquared + xx
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xsquared = x*x
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@ -28,10 +33,13 @@
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iter++
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}
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c64.CHROUT(48-iter)
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c64.CHROUT(32+max_iter-iter)
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}
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c64.CHROUT('\n')
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}
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c64scr.print_string("finished!\n")
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float duration = floor((c64.TIME_LO + c64.TIME_MID*256.0 + c64.TIME_HI*65536.0)/60.0)
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c64scr.print_string("finished in ")
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c64flt.print_float(duration)
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c64scr.print_string(" seconds!\n")
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}
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}
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@ -61,7 +61,7 @@
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return ending(false)
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sub ending(success: ubyte) {
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sub ending(ubyte success) {
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if success
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c64scr.print_string("\n\nYou guessed it, impressive!\n")
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else {
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@ -11,19 +11,26 @@
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float t
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ubyte color
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while(1) {
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float x = sin(t) + cos(t*1.1234)
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float y = cos(t) + sin(t*1.44)
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c64scr.setchrclr(screenx(x), screeny(y), 81, color)
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t += 0.1
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while true {
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float x = sin(t)
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float y = cos(t*1.1356)
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ubyte xx=screenx(x)
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ubyte yy=screeny(y)
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c64.COLOR = color
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c64scr.PLOT(xx,yy)
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c64.CHROUT('Q') ; shift-q = filled circle
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; the 3 lines above can be replaced by: c64scr.setchrclr(xx, yy, 81, color)
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t += 0.08
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color++
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}
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}
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sub screenx(x: float) -> ubyte {
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return b2ub(fintb(x * flt(width)/4.2) + width//2)
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sub screenx(float x) -> ubyte {
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return b2ub(fintb(x * flt(width)/2.2) + width//2)
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}
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sub screeny(y: float) -> ubyte {
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return b2ub(fintb(y * flt(height)/4.2) + height//2)
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sub screeny(float y) -> ubyte {
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return b2ub(fintb(y * flt(height)/2.2) + height//2)
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}
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}
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@ -13,7 +13,7 @@
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float t
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ubyte color
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while(1) {
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while true {
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float x = sin(t*1.01) + cos(t*1.1234)
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float y = cos(t) + sin(t*0.03456)
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vm_gfx_pixel(screenx(x), screeny(y), color//16)
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@ -22,10 +22,10 @@
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}
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}
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sub screenx(x: float) -> word {
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sub screenx(float x) -> word {
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return fintw(x * flt(width)/4.1) + width // 2
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}
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sub screeny(y: float) -> word {
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sub screeny(float y) -> word {
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return fintw(y * flt(height)/4.1) + height // 2
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}
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}
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@ -1,17 +1,53 @@
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%import c64utils
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%import mathlib
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%option enable_floats
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~ main {
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c64.TIME_HI=1 ; @todo WARNING about 'free' statements in main
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c64.TIME_MID=0
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c64.TIME_LO=0
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;c64scr.PLOT(screenx(x), screeny(y)) ; @todo fix argument calculation???!!!
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sub toscreenx(float x, float z) -> word {
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return 42
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}
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asmsub blerp(ubyte x @ A, uword ding @ XY) -> clobbers() -> () {
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}
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sub start() {
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word[3] wa = [-1000.w,2000.w,3000.w] ; @todo array data type fix (float->word)
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word[3] wa2 = [1000,2000,3000] ; @todo array data type fix (uword->word)
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word x = toscreenx(1.22, 3.22)
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blerp(4, 555)
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byte[3] ba1 = [-1, 2, 3]
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byte[3] ba2 = [100,101,102] ; @todo array data type
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;return b2ub(fintb(x * flt(width)/4.2) + width//2)
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; const byte width=20
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; word w1
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; byte b1
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; ubyte ub1
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; float x = 3.45
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; b1 = fintb(x * flt(width)/4.2) + width//2
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; c64scr.print_byte(b1)
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; c64.CHROUT('\n')
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; b1 = fintb(x/4.2 * flt(width)) + width//2
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; c64scr.print_byte(b1)
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; c64.CHROUT('\n')
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; ub1 = b2ub(fintb(x * flt(width)/4.2) + width//2)
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; c64scr.print_ubyte(ub1)
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; c64.CHROUT('\n')
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; ub1 = b2ub(fintb(x/4.2 * flt(width)) + width//2)
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; c64scr.print_ubyte(ub1)
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; c64.CHROUT('\n')
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; w1 = fintw(x * flt(width)/4.2) + width//2
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; c64scr.print_word(w1)
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; c64.CHROUT('\n')
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; w1 = fintw(x/4.2 * flt(width)) + width//2
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; c64scr.print_word(w1)
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; c64.CHROUT('\n')
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;uw1 = w2uw(fintw(x * flt(width)/4.2) + width//2) ; @todo w2uw
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}
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}
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95
compiler/examples/test_maxmin.p8
Normal file
95
compiler/examples/test_maxmin.p8
Normal file
@ -0,0 +1,95 @@
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%import c64utils
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%option enable_floats
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~ main {
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sub start() {
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ubyte ub1
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ubyte ub2
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byte b1 = -99
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byte b2
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uword uw1
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uword uw2
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word w1 = -9999
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word w2
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float f1
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float f2
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float f3
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ubyte[3] uba = [1,2,3]
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byte[3] ba = [-1,0,3]
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uword[3] uwa = [1000,200,0]
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ubyte[3] uba0 = 0
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byte[3] ba0 = 0
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uword[3] uwa0 = 0
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word[3] wa0 = -222
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word[3] wa1 = [-1000.w,2000.w,3000.w]
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word[3] wa2 = [1000,2000,3000]
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float[3] fa0 = 0.0
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float[3] fa1 = [-1000,44.555, 99.999]
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float[3] fa2 = [-1000,44.555, 0]
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str string = "hello"
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str_p pstring = "hello1"
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str_s sstring = "hello12"
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str_ps psstring = "hello123"
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c64.CHROUT('x')
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c64scr.print_ubyte(X)
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c64.CHROUT('\n')
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; @todo implement max and min, AND FIX STACKPTR (X) ERRORS!
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ub1 = max(uba)
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c64scr.print_ubyte(ub1)
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c64.CHROUT('\n')
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b1 = max(ba)
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c64scr.print_byte(b1)
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c64.CHROUT('\n')
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uw1 = max(uwa)
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c64scr.print_uword(uw1)
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c64.CHROUT('\n')
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w1 = max(wa0)
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c64scr.print_word(w1)
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c64.CHROUT('\n')
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w1 = max(wa1)
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c64scr.print_word(w1)
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c64.CHROUT('\n')
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w1 = max(wa2)
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c64scr.print_word(w1)
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c64.CHROUT('\n')
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f1 = max(fa1)
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c64flt.print_float(f1)
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c64.CHROUT('\n')
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c64.CHROUT('x')
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c64scr.print_ubyte(X)
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c64.CHROUT('\n')
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ub1 = min(uba)
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c64scr.print_ubyte(ub1)
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c64.CHROUT('\n')
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b1 = min(ba)
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c64scr.print_byte(b1)
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c64.CHROUT('\n')
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uw1 = min(uwa)
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c64scr.print_uword(uw1)
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c64.CHROUT('\n')
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w1 = min(wa0)
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c64scr.print_word(w1)
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c64.CHROUT('\n')
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w1 = min(wa1)
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c64scr.print_word(w1)
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c64.CHROUT('\n')
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w1 = min(wa2)
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c64scr.print_word(w1)
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c64.CHROUT('\n')
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f1 = min(fa1)
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c64flt.print_float(f1)
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c64.CHROUT('\n')
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c64.CHROUT('x')
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c64scr.print_ubyte(X)
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c64.CHROUT('\n')
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}
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}
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@ -1829,7 +1829,7 @@ private fun prog8Parser.Asmsub_returnsContext.toAst(): List<AsmSubroutineReturn>
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private fun prog8Parser.Asmsub_paramsContext.toAst(): List<AsmSubroutineParameter>
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= asmsub_param().map { AsmSubroutineParameter(it.identifier().text, it.datatype().toAst(), it.registerorpair()?.toAst(), it.statusregister()?.toAst(), toPosition()) }
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= asmsub_param().map { AsmSubroutineParameter(it.vardecl().identifier().text, it.vardecl().datatype().toAst(), it.registerorpair()?.toAst(), it.statusregister()?.toAst(), toPosition()) }
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private fun prog8Parser.StatusregisterContext.toAst() = Statusflag.valueOf(text)
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@ -1897,7 +1897,7 @@ private fun prog8Parser.Sub_return_partContext.toAst(): List<DataType> {
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private fun prog8Parser.Sub_paramsContext.toAst(): List<SubroutineParameter> =
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sub_param().map {
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vardecl().map {
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SubroutineParameter(it.identifier().text, it.datatype().toAst(), it.toPosition())
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}
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File diff suppressed because it is too large
Load Diff
@ -422,13 +422,13 @@ The syntax is::
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}
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; example:
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sub triple_something (amount: word) -> word {
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sub triple_something (word amount) -> word {
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return X * 3
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}
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The open curly brace must immediately follow the subroutine result specification on the same line,
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and can have nothing following it. The close curly brace must be on its own line as well.
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The parameters is a (possibly empty) comma separated list of "<parametername>: <datatype>" pairs specifying the input parameters.
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The parameters is a (possibly empty) comma separated list of "<datatype> <parametername>" pairs specifying the input parameters.
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The return type has to be specified if the subroutine returns a value.
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.. todo::
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@ -9,6 +9,7 @@
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~ c64 {
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memory ubyte SCRATCH_ZPB1 = $02 ; scratch byte 1 in ZP
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memory ubyte SCRATCH_ZPREG = $03 ; scratch register in ZP
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memory ubyte SCRATCH_ZPREGX = $fa ; temp storage for X register (stack pointer)
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memory uword SCRATCH_ZPWORD1 = $fb ; scratch word in ZP ($fb/$fc)
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memory uword SCRATCH_ZPWORD2 = $fd ; scratch word in ZP ($fd/$fe)
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@ -110,14 +111,14 @@
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; note: for subtraction and division, the left operand is in fac2, the right operand in fac1.
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; checked functions below:
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asmsub MOVFM (mflpt: uword @ AY) -> clobbers(A,Y) -> () = $bba2 ; load mflpt value from memory in A/Y into fac1
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asmsub MOVFM (uword mflpt @ AY) -> clobbers(A,Y) -> () = $bba2 ; load mflpt value from memory in A/Y into fac1
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asmsub FREADMEM () -> clobbers(A,Y) -> () = $bba6 ; load mflpt value from memory in $22/$23 into fac1
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asmsub CONUPK (mflpt: uword @ AY) -> clobbers(A,Y) -> () = $ba8c ; load mflpt value from memory in A/Y into fac2
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asmsub CONUPK (uword mflpt @ AY) -> clobbers(A,Y) -> () = $ba8c ; load mflpt value from memory in A/Y into fac2
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asmsub FAREADMEM () -> clobbers(A,Y) -> () = $ba90 ; load mflpt value from memory in $22/$23 into fac2
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asmsub MOVFA () -> clobbers(A,X) -> () = $bbfc ; copy fac2 to fac1
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asmsub MOVAF () -> clobbers(A,X) -> () = $bc0c ; copy fac1 to fac2 (rounded)
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asmsub MOVEF () -> clobbers(A,X) -> () = $bc0f ; copy fac1 to fac2
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asmsub MOVMF (mflpt: uword @ XY) -> clobbers(A,Y) -> () = $bbd4 ; store fac1 to memory X/Y as 5-byte mflpt
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asmsub MOVMF (uword mflpt @ XY) -> clobbers(A,Y) -> () = $bbd4 ; store fac1 to memory X/Y as 5-byte mflpt
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; fac1-> signed word in Y/A (might throw ILLEGAL QUANTITY)
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; (tip: use c64flt.FTOSWRDAY to get A/Y output; lo/hi switched to normal little endian order)
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@ -136,29 +137,29 @@ asmsub AYINT () -> clobbers(A,X,Y) -> () = $b1bf ; fac1-> signed word in 100
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; there is also c64flt.FREADS32 that reads from 98-101 ($62-$65) MSB FIRST
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; there is also c64flt.FREADUS32 that reads from 98-101 ($62-$65) MSB FIRST
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; there is also c64flt.FREADS24AXY that reads signed int24 into fac1 from A/X/Y (lo/mid/hi bytes)
|
||||
asmsub GIVAYF (lo: ubyte @ Y, hi: ubyte @ A) -> clobbers(A,X,Y) -> () = $b391
|
||||
asmsub GIVAYF (ubyte lo @ Y, ubyte hi @ A) -> clobbers(A,X,Y) -> () = $b391
|
||||
|
||||
asmsub FREADUY (unsigned: ubyte @ Y) -> clobbers(A,X,Y) -> () = $b3a2 ; 8 bit unsigned Y -> float in fac1
|
||||
asmsub FREADSA (signed: ubyte @ A) -> clobbers(A,X,Y) -> () = $bc3c ; 8 bit signed A -> float in fac1
|
||||
asmsub FREADSTR (length: ubyte @ A) -> clobbers(A,X,Y) -> () = $b7b5 ; str -> fac1, $22/23 must point to string, A=string length
|
||||
asmsub FREADUY (ubyte value @ Y) -> clobbers(A,X,Y) -> () = $b3a2 ; 8 bit unsigned Y -> float in fac1
|
||||
asmsub FREADSA (byte value @ A) -> clobbers(A,X,Y) -> () = $bc3c ; 8 bit signed A -> float in fac1
|
||||
asmsub FREADSTR (ubyte length @ A) -> clobbers(A,X,Y) -> () = $b7b5 ; str -> fac1, $22/23 must point to string, A=string length
|
||||
asmsub FPRINTLN () -> clobbers(A,X,Y) -> () = $aabc ; print string of fac1, on one line (= with newline) destroys fac1. (consider FOUT + STROUT as well)
|
||||
asmsub FOUT () -> clobbers(X) -> (uword @ AY) = $bddd ; fac1 -> string, address returned in AY ($0100)
|
||||
|
||||
asmsub FADDH () -> clobbers(A,X,Y) -> () = $b849 ; fac1 += 0.5, for rounding- call this before INT
|
||||
asmsub MUL10 () -> clobbers(A,X,Y) -> () = $bae2 ; fac1 *= 10
|
||||
asmsub DIV10 () -> clobbers(A,X,Y) -> () = $bafe ; fac1 /= 10 , CAUTION: result is always positive!
|
||||
asmsub FCOMP (mflpt: uword @ AY) -> clobbers(X,Y) -> (ubyte @ A) = $bc5b ; A = compare fac1 to mflpt in A/Y, 0=equal 1=fac1 is greater, 255=fac1 is less than
|
||||
asmsub FCOMP (uword mflpt @ AY) -> clobbers(X,Y) -> (ubyte @ A) = $bc5b ; A = compare fac1 to mflpt in A/Y, 0=equal 1=fac1 is greater, 255=fac1 is less than
|
||||
|
||||
asmsub FADDT () -> clobbers(A,X,Y) -> () = $b86a ; fac1 += fac2
|
||||
asmsub FADD (mflpt: uword @ AY) -> clobbers(A,X,Y) -> () = $b867 ; fac1 += mflpt value from A/Y
|
||||
asmsub FADD (uword mflpt @ AY) -> clobbers(A,X,Y) -> () = $b867 ; fac1 += mflpt value from A/Y
|
||||
asmsub FSUBT () -> clobbers(A,X,Y) -> () = $b853 ; fac1 = fac2-fac1 mind the order of the operands
|
||||
asmsub FSUB (mflpt: uword @ AY) -> clobbers(A,X,Y) -> () = $b850 ; fac1 = mflpt from A/Y - fac1
|
||||
asmsub FSUB (uword mflpt @ AY) -> clobbers(A,X,Y) -> () = $b850 ; fac1 = mflpt from A/Y - fac1
|
||||
asmsub FMULTT () -> clobbers(A,X,Y) -> () = $ba2b ; fac1 *= fac2
|
||||
asmsub FMULT (mflpt: uword @ AY) -> clobbers(A,X,Y) -> () = $ba28 ; fac1 *= mflpt value from A/Y
|
||||
asmsub FMULT (uword mflpt @ AY) -> clobbers(A,X,Y) -> () = $ba28 ; fac1 *= mflpt value from A/Y
|
||||
asmsub FDIVT () -> clobbers(A,X,Y) -> () = $bb12 ; fac1 = fac2/fac1 (remainder in fac2) mind the order of the operands
|
||||
asmsub FDIV (mflpt: uword @ AY) -> clobbers(A,X,Y) -> () = $bb0f ; fac1 = mflpt in A/Y / fac1 (remainder in fac2)
|
||||
asmsub FDIV (uword mflpt @ AY) -> clobbers(A,X,Y) -> () = $bb0f ; fac1 = mflpt in A/Y / fac1 (remainder in fac2)
|
||||
asmsub FPWRT () -> clobbers(A,X,Y) -> () = $bf7b ; fac1 = fac2 ** fac1
|
||||
asmsub FPWR (mflpt: uword @ AY) -> clobbers(A,X,Y) -> () = $bf78 ; fac1 = fac2 ** mflpt from A/Y
|
||||
asmsub FPWR (uword mflpt @ AY) -> clobbers(A,X,Y) -> () = $bf78 ; fac1 = fac2 ** mflpt from A/Y
|
||||
|
||||
asmsub NOTOP () -> clobbers(A,X,Y) -> () = $aed4 ; fac1 = NOT(fac1)
|
||||
asmsub INT () -> clobbers(A,X,Y) -> () = $bccc ; INT() truncates, use FADDH first to round instead of trunc
|
||||
@ -189,47 +190,47 @@ asmsub HOMECRSR () -> clobbers(A,X,Y) -> () = $E566 ; cursor to top left of sc
|
||||
|
||||
; ---- C64 kernal routines ----
|
||||
|
||||
asmsub STROUT (strptr: uword @ AY) -> clobbers(A, X, Y) -> () = $AB1E ; print null-terminated string (a bit slow, see if you can use c64scr.print_string instead)
|
||||
asmsub STROUT (uword strptr @ AY) -> clobbers(A, X, Y) -> () = $AB1E ; print null-terminated string (a bit slow, see if you can use c64scr.print_string instead)
|
||||
asmsub IRQDFRT () -> clobbers(A,X,Y) -> () = $EA31 ; default IRQ routine
|
||||
asmsub IRQDFEND () -> clobbers(A,X,Y) -> () = $EA81 ; default IRQ end/cleanup
|
||||
asmsub CINT () -> clobbers(A,X,Y) -> () = $FF81 ; (alias: SCINIT) initialize screen editor and video chip
|
||||
asmsub IOINIT () -> clobbers(A, X) -> () = $FF84 ; initialize I/O devices (CIA, SID, IRQ)
|
||||
asmsub RAMTAS () -> clobbers(A,X,Y) -> () = $FF87 ; initialize RAM, tape buffer, screen
|
||||
asmsub RESTOR () -> clobbers(A,X,Y) -> () = $FF8A ; restore default I/O vectors
|
||||
asmsub VECTOR (dir: ubyte @ Pc, userptr: uword @ XY) -> clobbers(A,Y) -> () = $FF8D ; read/set I/O vector table
|
||||
asmsub SETMSG (value: ubyte @ A) -> clobbers() -> () = $FF90 ; set Kernal message control flag
|
||||
asmsub SECOND (address: ubyte @ A) -> clobbers(A) -> () = $FF93 ; (alias: LSTNSA) send secondary address after LISTEN
|
||||
asmsub TKSA (address: ubyte @ A) -> clobbers(A) -> () = $FF96 ; (alias: TALKSA) send secondary address after TALK
|
||||
asmsub MEMTOP (dir: ubyte @ Pc, address: uword @ XY) -> clobbers() -> (uword @ XY) = $FF99 ; read/set top of memory pointer
|
||||
asmsub MEMBOT (dir: ubyte @ Pc, address: uword @ XY) -> clobbers() -> (uword @ XY) = $FF9C ; read/set bottom of memory pointer
|
||||
asmsub VECTOR (ubyte dir @ Pc, uword userptr @ XY) -> clobbers(A,Y) -> () = $FF8D ; read/set I/O vector table
|
||||
asmsub SETMSG (ubyte value @ A) -> clobbers() -> () = $FF90 ; set Kernal message control flag
|
||||
asmsub SECOND (ubyte address @ A) -> clobbers(A) -> () = $FF93 ; (alias: LSTNSA) send secondary address after LISTEN
|
||||
asmsub TKSA (ubyte address @ A) -> clobbers(A) -> () = $FF96 ; (alias: TALKSA) send secondary address after TALK
|
||||
asmsub MEMTOP (ubyte dir @ Pc, uword address @ XY) -> clobbers() -> (uword @ XY) = $FF99 ; read/set top of memory pointer
|
||||
asmsub MEMBOT (ubyte dir @ Pc, uword address @ XY) -> clobbers() -> (uword @ XY) = $FF9C ; read/set bottom of memory pointer
|
||||
asmsub SCNKEY () -> clobbers(A,X,Y) -> () = $FF9F ; scan the keyboard
|
||||
asmsub SETTMO (timeout: ubyte @ A) -> clobbers() -> () = $FFA2 ; set time-out flag for IEEE bus
|
||||
asmsub SETTMO (ubyte timeout @ A) -> clobbers() -> () = $FFA2 ; set time-out flag for IEEE bus
|
||||
asmsub ACPTR () -> clobbers() -> (ubyte @ A) = $FFA5 ; (alias: IECIN) input byte from serial bus
|
||||
asmsub CIOUT (databyte: ubyte @ A) -> clobbers() -> () = $FFA8 ; (alias: IECOUT) output byte to serial bus
|
||||
asmsub CIOUT (ubyte databyte @ A) -> clobbers() -> () = $FFA8 ; (alias: IECOUT) output byte to serial bus
|
||||
asmsub UNTLK () -> clobbers(A) -> () = $FFAB ; command serial bus device to UNTALK
|
||||
asmsub UNLSN () -> clobbers(A) -> () = $FFAE ; command serial bus device to UNLISTEN
|
||||
asmsub LISTEN (device: ubyte @ A) -> clobbers(A) -> () = $FFB1 ; command serial bus device to LISTEN
|
||||
asmsub TALK (device: ubyte @ A) -> clobbers(A) -> () = $FFB4 ; command serial bus device to TALK
|
||||
asmsub LISTEN (ubyte device @ A) -> clobbers(A) -> () = $FFB1 ; command serial bus device to LISTEN
|
||||
asmsub TALK (ubyte device @ A) -> clobbers(A) -> () = $FFB4 ; command serial bus device to TALK
|
||||
asmsub READST () -> clobbers() -> (ubyte @ A) = $FFB7 ; read I/O status word
|
||||
asmsub SETLFS (logical: ubyte @ A, device: ubyte @ X, address: ubyte @ Y) -> clobbers() -> () = $FFBA ; set logical file parameters
|
||||
asmsub SETNAM (namelen: ubyte @ A, filename: uword @ XY) -> clobbers() -> () = $FFBD ; set filename parameters
|
||||
asmsub SETLFS (ubyte logical @ A, ubyte device @ X, ubyte address @ Y) -> clobbers() -> () = $FFBA ; set logical file parameters
|
||||
asmsub SETNAM (ubyte namelen @ A, str filename @ XY) -> clobbers() -> () = $FFBD ; set filename parameters
|
||||
asmsub OPEN () -> clobbers(A,X,Y) -> () = $FFC0 ; (via 794 ($31A)) open a logical file
|
||||
asmsub CLOSE (logical: ubyte @ A) -> clobbers(A,X,Y) -> () = $FFC3 ; (via 796 ($31C)) close a logical file
|
||||
asmsub CHKIN (logical: ubyte @ X) -> clobbers(A,X) -> () = $FFC6 ; (via 798 ($31E)) define an input channel
|
||||
asmsub CHKOUT (logical: ubyte @ X) -> clobbers(A,X) -> () = $FFC9 ; (via 800 ($320)) define an output channel
|
||||
asmsub CLOSE (ubyte logical @ A) -> clobbers(A,X,Y) -> () = $FFC3 ; (via 796 ($31C)) close a logical file
|
||||
asmsub CHKIN (ubyte logical @ X) -> clobbers(A,X) -> () = $FFC6 ; (via 798 ($31E)) define an input channel
|
||||
asmsub CHKOUT (ubyte logical @ X) -> clobbers(A,X) -> () = $FFC9 ; (via 800 ($320)) define an output channel
|
||||
asmsub CLRCHN () -> clobbers(A,X) -> () = $FFCC ; (via 802 ($322)) restore default devices
|
||||
asmsub CHRIN () -> clobbers(Y) -> (ubyte @ A) = $FFCF ; (via 804 ($324)) input a character (for keyboard, read a whole line from the screen) A=byte read.
|
||||
asmsub CHROUT (char: ubyte @ A) -> clobbers() -> () = $FFD2 ; (via 806 ($326)) output a character
|
||||
asmsub LOAD (verify: ubyte @ A, address: uword @ XY) -> clobbers() -> (ubyte @Pc, ubyte @ A, ubyte @ X, ubyte @ Y) = $FFD5 ; (via 816 ($330)) load from device
|
||||
asmsub SAVE (zp_startaddr: ubyte @ A, endaddr: uword @ XY) -> clobbers() -> (ubyte @ Pc, ubyte @ A) = $FFD8 ; (via 818 ($332)) save to a device
|
||||
asmsub SETTIM (low: ubyte @ A, middle: ubyte @ X, high: ubyte @ Y) -> clobbers() -> () = $FFDB ; set the software clock
|
||||
asmsub CHROUT (ubyte char @ A) -> clobbers() -> () = $FFD2 ; (via 806 ($326)) output a character
|
||||
asmsub LOAD (ubyte verify @ A, uword address @ XY) -> clobbers() -> (ubyte @Pc, ubyte @ A, ubyte @ X, ubyte @ Y) = $FFD5 ; (via 816 ($330)) load from device
|
||||
asmsub SAVE (ubyte zp_startaddr @ A, uword endaddr @ XY) -> clobbers() -> (ubyte @ Pc, ubyte @ A) = $FFD8 ; (via 818 ($332)) save to a device
|
||||
asmsub SETTIM (ubyte low @ A, ubyte middle @ X, ubyte high @ Y) -> clobbers() -> () = $FFDB ; set the software clock
|
||||
asmsub RDTIM () -> clobbers() -> (ubyte @ A, ubyte @ X, ubyte @ Y) = $FFDE ; read the software clock
|
||||
asmsub STOP () -> clobbers(A,X) -> (ubyte @ Pz, ubyte @ Pc) = $FFE1 ; (via 808 ($328)) check the STOP key
|
||||
asmsub GETIN () -> clobbers(X,Y) -> (ubyte @ A) = $FFE4 ; (via 810 ($32A)) get a character
|
||||
asmsub CLALL () -> clobbers(A,X) -> () = $FFE7 ; (via 812 ($32C)) close all files
|
||||
asmsub UDTIM () -> clobbers(A,X) -> () = $FFEA ; update the software clock
|
||||
asmsub SCREEN () -> clobbers() -> (ubyte @ X, ubyte @ Y) = $FFED ; read number of screen rows and columns
|
||||
asmsub PLOT (dir: ubyte @ Pc, col: ubyte @ Y, row: ubyte @ X) -> clobbers() -> (ubyte @ X, ubyte @ Y) = $FFF0 ; read/set position of cursor on screen
|
||||
asmsub PLOT (ubyte dir @ Pc, ubyte col @ Y, ubyte row @ X) -> clobbers() -> (ubyte @ X, ubyte @ Y) = $FFF0 ; read/set position of cursor on screen. See c64scr.PLOT for a 'safe' wrapper that preserves X.
|
||||
asmsub IOBASE () -> clobbers() -> (uword @ XY) = $FFF3 ; read base address of I/O devices
|
||||
|
||||
; ---- end of C64 kernal routines ----
|
||||
|
||||
@ -48,7 +48,7 @@ asmsub init_system () -> clobbers(A,X,Y) -> () {
|
||||
}}
|
||||
}
|
||||
|
||||
asmsub ubyte2decimal (value: ubyte @ A) -> clobbers() -> (ubyte @ Y, ubyte @ X, ubyte @ A) {
|
||||
asmsub ubyte2decimal (ubyte value @ A) -> clobbers() -> (ubyte @ Y, ubyte @ X, ubyte @ A) {
|
||||
; ---- A to decimal string in Y/X/A (100s in Y, 10s in X, 1s in A)
|
||||
%asm {{
|
||||
ldy #$2f
|
||||
@ -65,7 +65,7 @@ asmsub ubyte2decimal (value: ubyte @ A) -> clobbers() -> (ubyte @ Y, ubyte @ X
|
||||
}}
|
||||
}
|
||||
|
||||
asmsub byte2decimal (value: ubyte @ A) -> clobbers() -> (ubyte @ Y, ubyte @ X, ubyte @ A) {
|
||||
asmsub byte2decimal (ubyte value @ A) -> clobbers() -> (ubyte @ Y, ubyte @ X, ubyte @ A) {
|
||||
; ---- A (signed byte) to decimal string in Y/X/A (100s in Y, 10s in X, 1s in A)
|
||||
; note: the '-' is not part of the conversion here if it's a negative number
|
||||
%asm {{
|
||||
@ -78,7 +78,7 @@ asmsub byte2decimal (value: ubyte @ A) -> clobbers() -> (ubyte @ Y, ubyte @ X,
|
||||
}}
|
||||
}
|
||||
|
||||
asmsub ubyte2hex (value: ubyte @ A) -> clobbers(X) -> (ubyte @ A, ubyte @ Y) {
|
||||
asmsub ubyte2hex (ubyte value @ A) -> clobbers(X) -> (ubyte @ A, ubyte @ Y) {
|
||||
; ---- A to hex string in AY (first hex char in A, second hex char in Y)
|
||||
%asm {{
|
||||
pha
|
||||
@ -100,7 +100,7 @@ hex_digits .text "0123456789abcdef" ; can probably be reused for other stuff as
|
||||
|
||||
|
||||
str word2hex_output = "1234" ; 0-terminated, to make printing easier
|
||||
asmsub uword2hex (value: uword @ AY) -> clobbers(A,X,Y) -> () {
|
||||
asmsub uword2hex (uword value @ AY) -> clobbers(A,X,Y) -> () {
|
||||
; ---- convert 16 bit uword in A/Y into 4-character hexadecimal string into memory 'word2hex_output'
|
||||
%asm {{
|
||||
sta c64.SCRATCH_ZPREG
|
||||
@ -117,7 +117,7 @@ asmsub uword2hex (value: uword @ AY) -> clobbers(A,X,Y) -> () {
|
||||
}
|
||||
|
||||
ubyte[3] word2bcd_bcdbuff = [0, 0, 0]
|
||||
asmsub uword2bcd (dataword: uword @ AY) -> clobbers(A,X) -> () {
|
||||
asmsub uword2bcd (uword value @ AY) -> clobbers(A,X) -> () {
|
||||
; Convert an 16 bit binary value to BCD
|
||||
;
|
||||
; This function converts a 16 bit binary value in A/Y into a 24 bit BCD. It
|
||||
@ -155,7 +155,7 @@ asmsub uword2bcd (dataword: uword @ AY) -> clobbers(A,X) -> () {
|
||||
|
||||
|
||||
ubyte[5] word2decimal_output = 0
|
||||
asmsub uword2decimal (dataword: uword @ AY) -> clobbers(A,X,Y) -> () {
|
||||
asmsub uword2decimal (uword value @ AY) -> clobbers(A,X,Y) -> () {
|
||||
; ---- convert 16 bit uword in A/Y into decimal string into memory 'word2decimal_output'
|
||||
%asm {{
|
||||
jsr uword2bcd
|
||||
@ -220,7 +220,7 @@ asmsub FREADUS32 () -> clobbers(A,X,Y) -> () {
|
||||
}}
|
||||
}
|
||||
|
||||
asmsub FREADS24AXY (lo: ubyte @ A, mid: ubyte @ X, hi: ubyte @ Y) -> clobbers(A,X,Y) -> () {
|
||||
asmsub FREADS24AXY (ubyte lo @ A, ubyte mid @ X, ubyte hi @ Y) -> clobbers(A,X,Y) -> () {
|
||||
; ---- fac1 = signed int24 (A/X/Y contain lo/mid/hi bytes)
|
||||
; note: there is no FREADU24AXY (unsigned), use FREADUS32 instead.
|
||||
%asm {{
|
||||
@ -237,7 +237,7 @@ asmsub FREADS24AXY (lo: ubyte @ A, mid: ubyte @ X, hi: ubyte @ Y) -> clobbers(
|
||||
}}
|
||||
}
|
||||
|
||||
asmsub GIVUAYFAY (value: uword @ AY) -> clobbers(A,X,Y) -> () {
|
||||
asmsub GIVUAYFAY (uword value @ AY) -> clobbers(A,X,Y) -> () {
|
||||
; ---- unsigned 16 bit word in A/Y (lo/hi) to fac1
|
||||
%asm {{
|
||||
sty $62
|
||||
@ -248,7 +248,7 @@ asmsub GIVUAYFAY (value: uword @ AY) -> clobbers(A,X,Y) -> () {
|
||||
}}
|
||||
}
|
||||
|
||||
asmsub GIVAYFAY (value: uword @ AY) -> clobbers(A,X,Y) -> () {
|
||||
asmsub GIVAYFAY (uword value @ AY) -> clobbers(A,X,Y) -> () {
|
||||
; ---- signed 16 bit word in A/Y (lo/hi) to float in fac1
|
||||
%asm {{
|
||||
sta c64.SCRATCH_ZPREG
|
||||
@ -280,7 +280,7 @@ asmsub GETADRAY () -> clobbers(X) -> (uword @ AY) {
|
||||
}}
|
||||
}
|
||||
|
||||
sub print_float (value: float) {
|
||||
sub print_float (float value) {
|
||||
; ---- prints the floating point value (without a newline) using basic rom routines.
|
||||
; clobbers no registers.
|
||||
; @todo version that takes A/Y pointer to float instead
|
||||
@ -304,7 +304,7 @@ sub print_float (value: float) {
|
||||
}}
|
||||
}
|
||||
|
||||
sub print_float_ln (value: float) {
|
||||
sub print_float_ln (float value) {
|
||||
; ---- prints the floating point value (with a newline at the end) using basic rom routines
|
||||
; clobbers no registers.
|
||||
; @todo version that takes A/Y pointer to float instead
|
||||
@ -336,7 +336,7 @@ sub print_float_ln (value: float) {
|
||||
; ---- this block contains (character) Screen and text I/O related functions ----
|
||||
|
||||
|
||||
asmsub clear_screen (char: ubyte @ A, color: ubyte @ Y) -> clobbers(A,X) -> () {
|
||||
asmsub clear_screen (ubyte char @ A, ubyte color @ Y) -> clobbers(A,X) -> () {
|
||||
; ---- clear the character screen with the given fill character and character color.
|
||||
; (assumes screen is at $0400, could be altered in the future with self-modifying code)
|
||||
; @todo some byte var to set the SCREEN ADDR HI BYTE
|
||||
@ -366,7 +366,7 @@ _loop lda #0
|
||||
}
|
||||
|
||||
|
||||
asmsub scroll_left_full (alsocolors: ubyte @ Pc) -> clobbers(A, X, Y) -> () {
|
||||
asmsub scroll_left_full (ubyte alsocolors @ Pc) -> clobbers(A, X, Y) -> () {
|
||||
; ---- scroll the whole screen 1 character to the left
|
||||
; contents of the rightmost column are unchanged, you should clear/refill this yourself
|
||||
; Carry flag determines if screen color data must be scrolled too
|
||||
@ -425,7 +425,7 @@ _scroll_screen ; scroll the screen memory
|
||||
}
|
||||
|
||||
|
||||
asmsub scroll_right_full (alsocolors: ubyte @ Pc) -> clobbers(A,X) -> () {
|
||||
asmsub scroll_right_full (ubyte alsocolors @ Pc) -> clobbers(A,X) -> () {
|
||||
; ---- scroll the whole screen 1 character to the right
|
||||
; contents of the leftmost column are unchanged, you should clear/refill this yourself
|
||||
; Carry flag determines if screen color data must be scrolled too
|
||||
@ -476,7 +476,7 @@ _scroll_screen ; scroll the screen memory
|
||||
}
|
||||
|
||||
|
||||
asmsub scroll_up_full (alsocolors: ubyte @ Pc) -> clobbers(A,X) -> () {
|
||||
asmsub scroll_up_full (ubyte alsocolors @ Pc) -> clobbers(A,X) -> () {
|
||||
; ---- scroll the whole screen 1 character up
|
||||
; contents of the bottom row are unchanged, you should refill/clear this yourself
|
||||
; Carry flag determines if screen color data must be scrolled too
|
||||
@ -527,7 +527,7 @@ _scroll_screen ; scroll the screen memory
|
||||
}
|
||||
|
||||
|
||||
asmsub scroll_down_full (alsocolors: ubyte @ Pc) -> clobbers(A,X) -> () {
|
||||
asmsub scroll_down_full (ubyte alsocolors @ Pc) -> clobbers(A,X) -> () {
|
||||
; ---- scroll the whole screen 1 character down
|
||||
; contents of the top row are unchanged, you should refill/clear this yourself
|
||||
; Carry flag determines if screen color data must be scrolled too
|
||||
@ -579,7 +579,7 @@ _scroll_screen ; scroll the screen memory
|
||||
|
||||
|
||||
|
||||
asmsub print_string (text: str @ AY) -> clobbers(A,Y) -> () {
|
||||
asmsub print_string (str text @ AY) -> clobbers(A,Y) -> () {
|
||||
; ---- print null terminated string from A/Y
|
||||
; note: the compiler contains an optimization that will replace
|
||||
; a call to this subroutine with a string argument of just one char,
|
||||
@ -598,7 +598,7 @@ asmsub print_string (text: str @ AY) -> clobbers(A,Y) -> () {
|
||||
}
|
||||
|
||||
|
||||
asmsub print_pstring (text: str_p @ AY) -> clobbers(A,X) -> (ubyte @ Y) {
|
||||
asmsub print_pstring (str_p text @ AY) -> clobbers(A,X) -> (ubyte @ Y) {
|
||||
; ---- print pstring (length as first byte) from A/Y, returns str len in Y
|
||||
%asm {{
|
||||
sta c64.SCRATCH_ZPB1
|
||||
@ -617,7 +617,7 @@ asmsub print_pstring (text: str_p @ AY) -> clobbers(A,X) -> (ubyte @ Y) {
|
||||
}
|
||||
|
||||
|
||||
asmsub print_ubyte0 (value: ubyte @ A) -> clobbers(A,X,Y) -> () {
|
||||
asmsub print_ubyte0 (ubyte value @ A) -> clobbers(A,X,Y) -> () {
|
||||
; ---- print the ubyte in A in decimal form, with left padding 0s (3 positions total)
|
||||
%asm {{
|
||||
jsr c64utils.ubyte2decimal
|
||||
@ -632,7 +632,7 @@ asmsub print_ubyte0 (value: ubyte @ A) -> clobbers(A,X,Y) -> () {
|
||||
}
|
||||
|
||||
|
||||
asmsub print_ubyte (value: ubyte @ A) -> clobbers(A,X,Y) -> () {
|
||||
asmsub print_ubyte (ubyte value @ A) -> clobbers(A,X,Y) -> () {
|
||||
; ---- print the ubyte in A in decimal form, without left padding 0s
|
||||
%asm {{
|
||||
jsr c64utils.ubyte2decimal
|
||||
@ -653,7 +653,7 @@ _print_tens txa
|
||||
}}
|
||||
}
|
||||
|
||||
asmsub print_byte (value: byte @ A) -> clobbers(A,X,Y) -> () {
|
||||
asmsub print_byte (byte value @ A) -> clobbers(A,X,Y) -> () {
|
||||
; ---- print the byte in A in decimal form, without left padding 0s
|
||||
%asm {{
|
||||
pha
|
||||
@ -668,7 +668,7 @@ asmsub print_byte (value: byte @ A) -> clobbers(A,X,Y) -> () {
|
||||
}
|
||||
|
||||
|
||||
asmsub print_ubyte_hex (prefix: ubyte @ Pc, value: ubyte @ A) -> clobbers(A,X,Y) -> () {
|
||||
asmsub print_ubyte_hex (ubyte prefix @ Pc, ubyte value @ A) -> clobbers(A,X,Y) -> () {
|
||||
; ---- print the ubyte in A in hex form (if Carry is set, a radix prefix '$' is printed as well)
|
||||
%asm {{
|
||||
bcc +
|
||||
@ -684,7 +684,7 @@ asmsub print_ubyte_hex (prefix: ubyte @ Pc, value: ubyte @ A) -> clobbers(A,X,
|
||||
}
|
||||
|
||||
|
||||
asmsub print_uword_hex (prefix: ubyte @ Pc, value: uword @ AY) -> clobbers(A,X,Y) -> () {
|
||||
asmsub print_uword_hex (ubyte prefix @ Pc, uword value @ AY) -> clobbers(A,X,Y) -> () {
|
||||
; ---- print the uword in A/Y in hexadecimal form (4 digits)
|
||||
; (if Carry is set, a radix prefix '$' is printed as well)
|
||||
%asm {{
|
||||
@ -698,7 +698,7 @@ asmsub print_uword_hex (prefix: ubyte @ Pc, value: uword @ AY) -> clobbers(A,X,
|
||||
}
|
||||
|
||||
|
||||
asmsub print_uword0 (value: uword @ AY) -> clobbers(A,X,Y) -> () {
|
||||
asmsub print_uword0 (uword value @ AY) -> clobbers(A,X,Y) -> () {
|
||||
; ---- print the uword in A/Y in decimal form, with left padding 0s (5 positions total)
|
||||
; @todo shorter in loop form?
|
||||
%asm {{
|
||||
@ -717,7 +717,7 @@ asmsub print_uword0 (value: uword @ AY) -> clobbers(A,X,Y) -> () {
|
||||
}
|
||||
|
||||
|
||||
asmsub print_uword (value: uword @ AY) -> clobbers(A,X,Y) -> () {
|
||||
asmsub print_uword (uword value @ AY) -> clobbers(A,X,Y) -> () {
|
||||
; ---- print the uword in A/Y in decimal form, without left padding 0s
|
||||
%asm {{
|
||||
jsr c64utils.uword2decimal
|
||||
@ -749,7 +749,7 @@ _pr_decimal
|
||||
}}
|
||||
}
|
||||
|
||||
asmsub print_word (value: word @ AY) -> clobbers(A,X,Y) -> () {
|
||||
asmsub print_word (word value @ AY) -> clobbers(A,X,Y) -> () {
|
||||
; ---- print the (signed) word in A/Y in decimal form, without left padding 0s
|
||||
%asm {{
|
||||
cpy #0
|
||||
@ -770,7 +770,7 @@ asmsub print_word (value: word @ AY) -> clobbers(A,X,Y) -> () {
|
||||
}}
|
||||
}
|
||||
|
||||
asmsub input_chars (buffer: uword @ AY) -> clobbers(A, X) -> (ubyte @ Y) {
|
||||
asmsub input_chars (uword buffer @ AY) -> clobbers(A, X) -> (ubyte @ Y) {
|
||||
; ---- Input a string (max. 80 chars) from the keyboard. Returns length in Y.
|
||||
; It assumes the keyboard is selected as I/O channel!
|
||||
|
||||
@ -791,7 +791,7 @@ asmsub input_chars (buffer: uword @ AY) -> clobbers(A, X) -> (ubyte @ Y) {
|
||||
}}
|
||||
}
|
||||
|
||||
asmsub setchr (col: ubyte @Y, row: ubyte @A) -> clobbers(A) -> () {
|
||||
asmsub setchr (ubyte col @Y, ubyte row @A) -> clobbers(A) -> () {
|
||||
; ---- set the character in SCRATCH_ZPB1 on the screen matrix at the given position
|
||||
%asm {{
|
||||
sty c64.SCRATCH_ZPREG
|
||||
@ -813,7 +813,7 @@ _screenrows .word $0400 + range(0, 1000, 40)
|
||||
}}
|
||||
}
|
||||
|
||||
asmsub setclr (col: ubyte @Y, row: ubyte @A) -> clobbers(A) -> () {
|
||||
asmsub setclr (ubyte col @Y, ubyte row @A) -> clobbers(A) -> () {
|
||||
; ---- set the color in SCRATCH_ZPB1 on the screen matrix at the given position
|
||||
%asm {{
|
||||
sty c64.SCRATCH_ZPREG
|
||||
@ -836,7 +836,7 @@ _colorrows .word $d800 + range(0, 1000, 40)
|
||||
}
|
||||
|
||||
|
||||
sub setchrclr (column: ubyte, row: ubyte, char: ubyte, color: ubyte) {
|
||||
sub setchrclr (ubyte column, ubyte row, ubyte char, ubyte color) {
|
||||
; ---- set char+color at the given position on the screen
|
||||
%asm {{
|
||||
lda setchrclr_row
|
||||
@ -866,5 +866,17 @@ _colormod sta $ffff ; modified
|
||||
}}
|
||||
}
|
||||
|
||||
asmsub PLOT (ubyte col @ Y, ubyte row @ A) -> clobbers(A) -> () {
|
||||
; ---- safe wrapper around PLOT kernel routine, to save the X register.
|
||||
%asm {{
|
||||
stx c64.SCRATCH_ZPREGX
|
||||
tax
|
||||
clc
|
||||
jsr c64.PLOT
|
||||
ldx c64.SCRATCH_ZPREGX
|
||||
rts
|
||||
}}
|
||||
}
|
||||
|
||||
|
||||
} ; ---- end block c64scr
|
||||
|
||||
@ -19,7 +19,7 @@
|
||||
|
||||
|
||||
|
||||
asmsub multiply_bytes (byte1: ubyte @ A, byte2: ubyte @ Y) -> clobbers(X) -> (ubyte @ A) {
|
||||
asmsub multiply_bytes (ubyte byte1 @ A, ubyte byte2 @ Y) -> clobbers(X) -> (ubyte @ A) {
|
||||
; ---- multiply 2 bytes, result as byte in A (signed or unsigned)
|
||||
%asm {{
|
||||
sta SCRATCH_ZPB1
|
||||
@ -37,7 +37,7 @@ asmsub multiply_bytes (byte1: ubyte @ A, byte2: ubyte @ Y) -> clobbers(X) -> (
|
||||
}
|
||||
|
||||
|
||||
asmsub multiply_bytes_16 (byte1: ubyte @ A, byte2: ubyte @ Y) -> clobbers(X) -> (uword @ AY) {
|
||||
asmsub multiply_bytes_16 (ubyte byte1 @ A, ubyte byte2 @ Y) -> clobbers(X) -> (uword @ AY) {
|
||||
; ---- multiply 2 bytes, result as word in A/Y (unsigned)
|
||||
%asm {{
|
||||
sta SCRATCH_ZPB1
|
||||
@ -59,7 +59,7 @@ asmsub multiply_bytes_16 (byte1: ubyte @ A, byte2: ubyte @ Y) -> clobbers(X) -
|
||||
}
|
||||
|
||||
word[2] multiply_words_product = 0
|
||||
asmsub multiply_words (number: uword @ AY) -> clobbers(A,X) -> () {
|
||||
asmsub multiply_words (uword number @ AY) -> clobbers(A,X) -> () {
|
||||
; ---- multiply two 16-bit words into a 32-bit result
|
||||
; input: A/Y = first 16-bit number, SCRATCH_ZPWORD1 in ZP = second 16-bit number
|
||||
; output: multiply_words_product 32-bits product, LSB order (low-to-high)
|
||||
@ -93,7 +93,7 @@ mult16 lda #$00
|
||||
}
|
||||
|
||||
|
||||
asmsub divmod_bytes (number: ubyte @ X, divisor: ubyte @ Y) -> clobbers() -> (ubyte @ X, ubyte @ A) {
|
||||
asmsub divmod_bytes (ubyte number @ X, ubyte divisor @ Y) -> clobbers() -> (ubyte @ X, ubyte @ A) {
|
||||
; ---- divide X by Y, result quotient in X, remainder in A (unsigned)
|
||||
; division by zero will result in quotient = 255 and remainder = original number
|
||||
%asm {{
|
||||
@ -116,7 +116,7 @@ asmsub divmod_bytes (number: ubyte @ X, divisor: ubyte @ Y) -> clobbers() -> (
|
||||
}}
|
||||
}
|
||||
|
||||
asmsub divmod_words (divisor: uword @ AY) -> clobbers(X) -> (uword @ AY) {
|
||||
asmsub divmod_words (uword divisor @ AY) -> clobbers(X) -> (uword @ AY) {
|
||||
; ---- divide two words (16 bit each) into 16 bit results
|
||||
; input: SCRATCH_ZPWORD1 in ZP: 16 bit number, A/Y: 16 bit divisor
|
||||
; output: SCRATCH_ZPWORD1 in ZP: 16 bit result, A/Y: 16 bit remainder
|
||||
@ -164,7 +164,7 @@ remainder = SCRATCH_ZPB1
|
||||
}}
|
||||
}
|
||||
|
||||
asmsub randseed (seed: uword @ AY) -> clobbers(A, Y) -> () {
|
||||
asmsub randseed (uword seed @ AY) -> clobbers(A, Y) -> () {
|
||||
; ---- reset the random seeds for the byte and word random generators
|
||||
; default starting values are: A=$2c Y=$9e
|
||||
%asm {{
|
||||
|
||||
Loading…
Reference in New Issue
Block a user