From 4c2a81c45273333edc6e1df5d3d27aa8ec79ef4d Mon Sep 17 00:00:00 2001
From: Irmen de Jong <irmen@razorvine.net>
Date: Fri, 21 Dec 2018 01:06:01 +0100
Subject: [PATCH] min/max byte arrays

---
 compiler/examples/comparison_ifs_byte.p8  |   4 +-
 compiler/examples/comparison_ifs_float.p8 |   4 +-
 compiler/examples/comparison_ifs_ubyte.p8 |   4 +-
 compiler/examples/comparison_ifs_uword.p8 |   4 +-
 compiler/examples/comparison_ifs_word.p8  |   4 +-
 compiler/examples/comparisons_byte.p8     |   6 +-
 compiler/examples/comparisons_float.p8    |   6 +-
 compiler/examples/comparisons_ubyte.p8    |   6 +-
 compiler/examples/comparisons_uword.p8    |   6 +-
 compiler/examples/comparisons_word.p8     |   6 +-
 compiler/examples/mandelbrot-c64.p8       |   8 +-
 compiler/examples/numbergame-c64.p8       |   4 +-
 compiler/examples/numbergame-novm.p8      |  58 +++++-----
 compiler/examples/test.p8                 | 130 +++++++---------------
 compiler/examples/test_maxmin.p8          |  34 +++---
 prog8lib/mathlib.p8                       |   2 +-
 prog8lib/prog8lib.p8                      |  96 +++++++++++++---
 17 files changed, 201 insertions(+), 181 deletions(-)

diff --git a/compiler/examples/comparison_ifs_byte.p8 b/compiler/examples/comparison_ifs_byte.p8
index 876f0a894..7d0410d87 100644
--- a/compiler/examples/comparison_ifs_byte.p8
+++ b/compiler/examples/comparison_ifs_byte.p8
@@ -10,7 +10,7 @@
         byte v1
         byte v2
 
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
         v1 = 100
@@ -110,7 +110,7 @@
         else
             c64.STROUT("error in 22>=22!\n")
 
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
     }
diff --git a/compiler/examples/comparison_ifs_float.p8 b/compiler/examples/comparison_ifs_float.p8
index 37e1b8d1a..7fd223b6f 100644
--- a/compiler/examples/comparison_ifs_float.p8
+++ b/compiler/examples/comparison_ifs_float.p8
@@ -10,7 +10,7 @@
         float v1
         float v2
 
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
         v1 = 1.11
@@ -110,7 +110,7 @@
         else
             c64.STROUT("error in -22.2>=-22.2!\n")
 
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
     }
diff --git a/compiler/examples/comparison_ifs_ubyte.p8 b/compiler/examples/comparison_ifs_ubyte.p8
index c73a89c0d..262a7db10 100644
--- a/compiler/examples/comparison_ifs_ubyte.p8
+++ b/compiler/examples/comparison_ifs_ubyte.p8
@@ -10,7 +10,7 @@
         ubyte v1
         ubyte v2
 
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
         v1 = 100
@@ -110,7 +110,7 @@
         else
             c64.STROUT("error in 22>=22!\n")
 
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
     }
diff --git a/compiler/examples/comparison_ifs_uword.p8 b/compiler/examples/comparison_ifs_uword.p8
index c2c85bff8..6975f0f06 100644
--- a/compiler/examples/comparison_ifs_uword.p8
+++ b/compiler/examples/comparison_ifs_uword.p8
@@ -10,7 +10,7 @@
         uword v1
         uword v2
 
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
         v1 = 100
@@ -110,7 +110,7 @@
         else
             c64.STROUT("error in 322>=322!\n")
 
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
     }
diff --git a/compiler/examples/comparison_ifs_word.p8 b/compiler/examples/comparison_ifs_word.p8
index 33f4529c2..bb288b69c 100644
--- a/compiler/examples/comparison_ifs_word.p8
+++ b/compiler/examples/comparison_ifs_word.p8
@@ -10,7 +10,7 @@
         word v1
         word v2
 
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
         v1 = 100
@@ -110,7 +110,7 @@
         else
             c64.STROUT("error in -222>=-222!\n")
 
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
     }
diff --git a/compiler/examples/comparisons_byte.p8 b/compiler/examples/comparisons_byte.p8
index 6f8d3dbf3..063a7a743 100644
--- a/compiler/examples/comparisons_byte.p8
+++ b/compiler/examples/comparisons_byte.p8
@@ -11,7 +11,7 @@
 
         ; check stack usage:
         c64.STROUT("signed byte ")
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT(' ')
 
         cr=v1==v2
@@ -39,7 +39,7 @@
         cr=v1>=v2
         cr=v1>=v2
 
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
         ; comparisons:
@@ -58,7 +58,7 @@
         c64.STROUT("v1=20, v2=-111\n")
         compare()
 
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
         return
 
diff --git a/compiler/examples/comparisons_float.p8 b/compiler/examples/comparisons_float.p8
index f930ed250..954464ffa 100644
--- a/compiler/examples/comparisons_float.p8
+++ b/compiler/examples/comparisons_float.p8
@@ -13,7 +13,7 @@
 
         ; check stack usage:
         c64.STROUT("floating point ")
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT(' ')
 
         cr=v1==v2
@@ -41,7 +41,7 @@
         cr=v1>=v2
         cr=v1>=v2
 
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
         ; comparisons:
@@ -75,7 +75,7 @@
         c64.STROUT("v1 = v2 = 0\n")
         compare()
 
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
         return
diff --git a/compiler/examples/comparisons_ubyte.p8 b/compiler/examples/comparisons_ubyte.p8
index 61f0d32df..0b420b9cb 100644
--- a/compiler/examples/comparisons_ubyte.p8
+++ b/compiler/examples/comparisons_ubyte.p8
@@ -11,7 +11,7 @@
 
         ; check stack usage:
         c64.STROUT("unsigned byte ")
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT(' ')
 
         cr=v1==v2
@@ -39,7 +39,7 @@
         cr=v1>=v2
         cr=v1>=v2
 
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
         ; comparisons:
@@ -58,7 +58,7 @@
         c64.STROUT("v1=220, v2=10\n")
         compare()
 
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
         return
diff --git a/compiler/examples/comparisons_uword.p8 b/compiler/examples/comparisons_uword.p8
index 24bde4ad0..d5f6cd0b3 100644
--- a/compiler/examples/comparisons_uword.p8
+++ b/compiler/examples/comparisons_uword.p8
@@ -11,7 +11,7 @@
 
         ; check stack usage:
         c64.STROUT("unsigned word ")
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT(' ')
 
         cr=v1==v2
@@ -39,7 +39,7 @@
         cr=v1>=v2
         cr=v1>=v2
 
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
         ; comparisons:
@@ -88,7 +88,7 @@
         c64.STROUT("v1 = v2 = aa\n")
         compare()
 
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
         return
diff --git a/compiler/examples/comparisons_word.p8 b/compiler/examples/comparisons_word.p8
index 0c0ad2e12..ce289c804 100644
--- a/compiler/examples/comparisons_word.p8
+++ b/compiler/examples/comparisons_word.p8
@@ -12,7 +12,7 @@
 
         ; check stack usage:
         c64.STROUT("signed word ")
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT(' ')
 
         cr=v1==v2
@@ -40,7 +40,7 @@
         cr=v1>=v2
         cr=v1>=v2
 
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
         ; comparisons:
@@ -125,7 +125,7 @@
         c64.STROUT("v1 = v2 = aa\n")
         compare()
 
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
         return
diff --git a/compiler/examples/mandelbrot-c64.p8 b/compiler/examples/mandelbrot-c64.p8
index 63cdca32d..0d8a2670c 100644
--- a/compiler/examples/mandelbrot-c64.p8
+++ b/compiler/examples/mandelbrot-c64.p8
@@ -7,7 +7,7 @@
     const ubyte max_iter = 16
 
     sub start()  {
-        c64scr.print_string("calculating mandelbrot fractal...\n")
+        c64scr.print("calculating mandelbrot fractal...\n")
 
         c64.TIME_HI=0
         c64.TIME_MID=0
@@ -38,8 +38,8 @@
             c64.CHROUT('\n')
         }
         float duration = floor((c64.TIME_LO + c64.TIME_MID*256.0 + c64.TIME_HI*65536.0)/60.0)
-        c64scr.print_string("finished in ")
-        c64flt.print_float(duration)
-        c64scr.print_string(" seconds!\n")
+        c64scr.print("finished in ")
+        c64flt.print_f(duration)
+        c64scr.print(" seconds!\n")
     }
 }
diff --git a/compiler/examples/numbergame-c64.p8 b/compiler/examples/numbergame-c64.p8
index 053c89a37..35dbddc0b 100644
--- a/compiler/examples/numbergame-c64.p8
+++ b/compiler/examples/numbergame-c64.p8
@@ -39,7 +39,7 @@
 
 ask_guess:
         c64.STROUT("\nYou have ")
-        c64scr.print_ubyte(attempts_left)
+        c64scr.print_ub(attempts_left)
         c64.STROUT(" guess")
         if(attempts_left>1)
             c64.STROUT("es")
@@ -66,7 +66,7 @@ ask_guess:
 
         ; game over.
         c64.STROUT("\nToo bad! It was: ")
-        c64scr.print_ubyte(secretnumber)
+        c64scr.print_ub(secretnumber)
         c64.CHROUT('\n')
 
 goodbye:
diff --git a/compiler/examples/numbergame-novm.p8 b/compiler/examples/numbergame-novm.p8
index d98935501..eba15be61 100644
--- a/compiler/examples/numbergame-novm.p8
+++ b/compiler/examples/numbergame-novm.p8
@@ -13,48 +13,48 @@
         ubyte secretnumber = rnd() % 99 + 1     ; random number 1..100
 
         c64.VMCSB |= 2  ; switch lowercase chars
-        c64scr.print_string("Please introduce yourself: ")
+        c64scr.print("Please introduce yourself: ")
         c64scr.input_chars(name)
-        c64scr.print_string("\n\nHello, ")
-        c64scr.print_string(name)
-        c64scr.print_string(".\nLet's play a number guessing game.\nI am thinking of a number from 1 to 100!You'll have to guess it!\n")
+        c64scr.print("\n\nHello, ")
+        c64scr.print(name)
+        c64scr.print(".\nLet's play a number guessing game.\nI am thinking of a number from 1 to 100!You'll have to guess it!\n")
 
         for ubyte attempts_left in 10 to 1 step -1 {
 
 ; stackptr debugging
-;            c64scr.print_byte(X)
+;            c64scr.print_b(X)
 ;            c64.CHROUT('\n')
 
-            c64scr.print_string("\nYou have ")
-            c64scr.print_ubyte(attempts_left)
-            c64scr.print_string(" guess")
+            c64scr.print("\nYou have ")
+            c64scr.print_ub(attempts_left)
+            c64scr.print(" guess")
             if attempts_left>1
-                c64scr.print_string("es")
-            c64scr.print_string(" left.\nWhat is your next guess? ")
+                c64scr.print("es")
+            c64scr.print(" left.\nWhat is your next guess? ")
             c64scr.input_chars(input)
             ubyte guess = str2ubyte(input)
 
 ; debug info
-;            c64scr.print_string(" > attempts left=")
-;            c64scr.print_byte(attempts_left)
-;            c64scr.print_string("\n > secretnumber=")
-;            c64scr.print_byte(secretnumber)
-;            c64scr.print_string("\n > input=")
-;            c64scr.print_string(input)
-;            c64scr.print_string("\n > guess=")
-;            c64scr.print_byte(guess)
+;            c64scr.print(" > attempts left=")
+;            c64scr.print_b(attempts_left)
+;            c64scr.print("\n > secretnumber=")
+;            c64scr.print_b(secretnumber)
+;            c64scr.print("\n > input=")
+;            c64scr.print(input)
+;            c64scr.print("\n > guess=")
+;            c64scr.print_b(guess)
 ;            c64.CHROUT('\n')
-;            c64scr.print_byte(X)    ; stackptr debugging
+;            c64scr.print_b(X)    ; stackptr debugging
 ;            c64.CHROUT('\n')
 
             if guess==secretnumber {
                 return ending(true)
             } else {
-                c64scr.print_string("\n\nThat is too ")
+                c64scr.print("\n\nThat is too ")
                 if guess<secretnumber
-                    c64scr.print_string("low!\n")
+                    c64scr.print("low!\n")
                 else
-                    c64scr.print_string("high!\n")
+                    c64scr.print("high!\n")
             }
         }
 
@@ -63,15 +63,15 @@
 
         sub ending(ubyte success) {
             if success
-                c64scr.print_string("\n\nYou guessed it, impressive!\n")
+                c64scr.print("\n\nYou guessed it, impressive!\n")
             else {
-                c64scr.print_string("\nToo bad! My number was: ")
-                c64scr.print_ubyte(secretnumber)
-                c64scr.print_string(".\n")
+                c64scr.print("\nToo bad! My number was: ")
+                c64scr.print_ub(secretnumber)
+                c64scr.print(".\n")
             }
-            c64scr.print_string("Thanks for playing, ")
-            c64scr.print_string(name)
-            c64scr.print_string(".\n")
+            c64scr.print("Thanks for playing, ")
+            c64scr.print(name)
+            c64scr.print(".\n")
         }
     }
 }
diff --git a/compiler/examples/test.p8 b/compiler/examples/test.p8
index 2adb2c8b2..c9d21e326 100644
--- a/compiler/examples/test.p8
+++ b/compiler/examples/test.p8
@@ -8,73 +8,52 @@
 
     sub start()  {
 
-        ubyte ub1
-        ubyte ub2
-        ubyte ub3
-        byte b1
-        byte b2
-        byte b3
-        uword uw1
-        uword uw2
-        uword uw3
-        word w1
-        word w2
-        word w3
-        float f1
-        float f2
-        float f3
 
+        byte[4] ba = [-1,2,-10,30]
+        ubyte[4] uba = [4,200,10,15]
+        word[4] wa = [400,-200,-1000,1500]
+        uword[4] uwa = [4000,200,1000,150]
+        float[4] fa = [-2.22, 3.33, -5.55, 1.11]
         c64scr.print("    X=")
         c64scr.print_ub(X)
         c64.CHROUT('\n')
 
-        ub1=20
-        ub2=6
-        ub3=ub1*ub2
-        c64scr.print_ub(ub3)        ; 120
-        c64.CHROUT('\n')
-        uw1=900
-        uw2=66
-        uw3=uw1*uw2
-        c64scr.print_uw(uw3)        ; 59400
-        c64.CHROUT('\n')
+        byte bmin = min(ba)
+        byte bmax = max(ba)
+        ubyte ubmin = min(uba)
+        ubyte ubmax = max(uba)
+;        word wmin = min(wa)
+;        word wmax = max(wa)
+;        uword uwmin = min(uwa)
+;        uword uwmax = max(uwa)
+;        float fmin = min(fa)
+;        float fmax = max(fa)
 
-        b1=20
-        b2=6
-        b3=b1*b2
-        c64scr.print_b(b3)          ; 120
+        c64scr.print_b(bmin)
+        c64.CHROUT(',')
+        c64scr.print_b(bmax)
         c64.CHROUT('\n')
-        w1=500
-        w2=44
-        w3=w1*w2
-        c64scr.print_w(w3)          ; 22000
-        c64.CHROUT('\n')
-        b1=20
-        b2=-6
-        b3=b1*b2
-        c64scr.print_b(b3)          ; -120
-        c64.CHROUT('\n')
-        w1=500
-        w2=-44
-        w3=w1*w2
-        c64scr.print_w(w3)          ; -22000
-        c64.CHROUT('\n')
-        b1=-20
-        b2=-6
-        b3=b1*b2
-        c64scr.print_b(b3)          ; 120
-        c64.CHROUT('\n')
-        w1=-500
-        w2=-44
-        w3=w1*w2
-        c64scr.print_w(w3)          ; 22000
-        c64.CHROUT('\n')
-        f1=-500.11
-        f2=44.4
-        f3=f1*f2
-        c64flt.print_f(f3)
+        c64scr.print_ub(ubmin)
+        c64.CHROUT(',')
+        c64scr.print_ub(ubmax)
         c64.CHROUT('\n')
+;        c64scr.print_w(wmin)
+;        c64.CHROUT(',')
+;        c64scr.print_w(wmax)
+;        c64.CHROUT('\n')
+;        c64scr.print_uw(uwmin)
+;        c64.CHROUT(',')
+;        c64scr.print_uw(uwmax)
+;        c64.CHROUT('\n')
+;
+;        c64flt.print_f(fmin)
+;        c64.CHROUT(',')
+;        c64flt.print_f(fmax)
+;        c64.CHROUT('\n')
 
+        c64scr.print("    X=")
+        c64scr.print_ub(X)
+        c64.CHROUT('\n')
 
 ;        ub3 = 200/67 as ubyte
 ;        ub3 = 200//67
@@ -100,33 +79,6 @@
 ;        c64scr.print_uw(uw3)
 ;        c64.CHROUT('\n')
 ;
-;        f3 = 999/44
-;        c64flt.print_f(f3)
-;        c64.CHROUT('\n')
-;        f3 = 999//44
-;        c64flt.print_f(f3)
-;        c64.CHROUT('\n')
-;        f3 = f1/f2
-;        c64flt.print_f(f3)
-;        c64.CHROUT('\n')
-;        f3 = f1//f2
-;        c64flt.print_f(f3)
-;        c64.CHROUT('\n')
-;        f3 = ub1/ub2
-;        c64flt.print_f(f3)
-;        c64.CHROUT('\n')
-;        f3 = ub1//ub2
-;        c64flt.print_f(f3)
-;        c64.CHROUT('\n')
-;        f3 = uw1/uw2
-;        c64flt.print_f(f3)
-;        c64.CHROUT('\n')
-;        f3 = uw1//uw2
-;        c64flt.print_f(f3)
-;        c64.CHROUT('\n')
-        c64scr.print("    X=")
-        c64scr.print_ub(X)
-        c64.CHROUT('\n')
 
 ;        const byte width=20
 ;        word   w1
@@ -134,10 +86,10 @@
 ;        ubyte   ub1
 ;        float x = 3.45
 ;        b1 = fintb(x * flt(width)/4.2) + width//2
-;        c64scr.print_byte(b1)
+;        c64scr.print_b(b1)
 ;        c64.CHROUT('\n')
 ;        b1 = fintb(x/4.2 * flt(width)) + width//2
-;        c64scr.print_byte(b1)
+;        c64scr.print_b(b1)
 ;        c64.CHROUT('\n')
 ;        ub1 = b2ub(fintb(x * flt(width)/4.2) + width//2)
 ;        c64scr.print_ub(ub1)
@@ -146,10 +98,10 @@
 ;        c64scr.print_ub(ub1)
 ;        c64.CHROUT('\n')
 ;        w1 = fintw(x * flt(width)/4.2) + width//2
-;        c64scr.print_word(w1)
+;        c64scr.print_w(w1)
 ;        c64.CHROUT('\n')
 ;        w1 = fintw(x/4.2 * flt(width)) + width//2
-;        c64scr.print_word(w1)
+;        c64scr.print_w(w1)
 ;        c64.CHROUT('\n')
         ;uw1 = w2uw(fintw(x * flt(width)/4.2) + width//2)       ; @todo w2uw
 
diff --git a/compiler/examples/test_maxmin.p8 b/compiler/examples/test_maxmin.p8
index 11cb5c2e4..9ed735336 100644
--- a/compiler/examples/test_maxmin.p8
+++ b/compiler/examples/test_maxmin.p8
@@ -35,59 +35,59 @@
         str_ps psstring = "hello123"
 
         c64.CHROUT('x')
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
         ; @todo implement max and min, AND FIX STACKPTR (X) ERRORS!
 
         ub1 = max(uba)
-        c64scr.print_ubyte(ub1)
+        c64scr.print_ub(ub1)
         c64.CHROUT('\n')
         b1 = max(ba)
-        c64scr.print_byte(b1)
+        c64scr.print_b(b1)
         c64.CHROUT('\n')
         uw1 = max(uwa)
-        c64scr.print_uword(uw1)
+        c64scr.print_uw(uw1)
         c64.CHROUT('\n')
         w1 = max(wa0)
-        c64scr.print_word(w1)
+        c64scr.print_w(w1)
         c64.CHROUT('\n')
         w1 = max(wa1)
-        c64scr.print_word(w1)
+        c64scr.print_w(w1)
         c64.CHROUT('\n')
         w1 = max(wa2)
-        c64scr.print_word(w1)
+        c64scr.print_w(w1)
         c64.CHROUT('\n')
         f1 = max(fa1)
-        c64flt.print_float(f1)
+        c64flt.print_f(f1)
         c64.CHROUT('\n')
         c64.CHROUT('x')
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
         ub1 = min(uba)
-        c64scr.print_ubyte(ub1)
+        c64scr.print_ub(ub1)
         c64.CHROUT('\n')
         b1 = min(ba)
-        c64scr.print_byte(b1)
+        c64scr.print_b(b1)
         c64.CHROUT('\n')
         uw1 = min(uwa)
-        c64scr.print_uword(uw1)
+        c64scr.print_uw(uw1)
         c64.CHROUT('\n')
         w1 = min(wa0)
-        c64scr.print_word(w1)
+        c64scr.print_w(w1)
         c64.CHROUT('\n')
         w1 = min(wa1)
-        c64scr.print_word(w1)
+        c64scr.print_w(w1)
         c64.CHROUT('\n')
         w1 = min(wa2)
-        c64scr.print_word(w1)
+        c64scr.print_w(w1)
         c64.CHROUT('\n')
         f1 = min(fa1)
-        c64flt.print_float(f1)
+        c64flt.print_f(f1)
         c64.CHROUT('\n')
         c64.CHROUT('x')
-        c64scr.print_ubyte(X)
+        c64scr.print_ub(X)
         c64.CHROUT('\n')
 
     }
diff --git a/prog8lib/mathlib.p8 b/prog8lib/mathlib.p8
index fd6b03c02..6c522295c 100644
--- a/prog8lib/mathlib.p8
+++ b/prog8lib/mathlib.p8
@@ -89,7 +89,7 @@ mult16		lda  #$00
 		bne  -
 		rts
 
-multiply_words_result	.fill 4
+multiply_words_result	.byte  0,0,0,0
 		
 	}}
 }
diff --git a/prog8lib/prog8lib.p8 b/prog8lib/prog8lib.p8
index 3ec38efab..7e7d32645 100644
--- a/prog8lib/prog8lib.p8
+++ b/prog8lib/prog8lib.p8
@@ -302,8 +302,8 @@ pop_2_floats_f2_in_fac1	.proc
 		jmp  c64.MOVFM
 		.pend
 		
-fmath_float1	.fill  5	; storage for a mflpt5 value
-fmath_float2	.fill  5	; storage for a mflpt5 value
+fmath_float1	.byte 0,0,0,0,0	; storage for a mflpt5 value
+fmath_float2	.byte 0,0,0,0,0	; storage for a mflpt5 value
 
 push_fac1_as_result	.proc
 		; -- push the float in FAC1 onto the stack, and return from calculation
@@ -1154,15 +1154,43 @@ _cmp_mod	cpy  #255		; modified
 		.pend
 		
 func_max_ub	.proc
-		inx
+		jsr  pop_array_and_lengthY
+		lda  #0
+		sta  SCRATCH_ZPB1
+		dey
+-		lda  (SCRATCH_ZPWORD1),y
+		cmp  SCRATCH_ZPB1
+		bcc  +
+		sta  SCRATCH_ZPB1
++		dey
+		cpy  #255
+		bne  -
+		lda  SCRATCH_ZPB1
+		sta  ESTACK_LO,x
+		dex
 		rts
-		.warn "todo func_max_ub"
 		.pend
 		
 func_max_b	.proc
-		inx
+		jsr  pop_array_and_lengthY
+		lda  #-128
+		sta  SCRATCH_ZPB1
+		dey
+-		lda  (SCRATCH_ZPWORD1),y
+		sec
+		sbc  SCRATCH_ZPB1
+		bvc  +
+		eor  #$80
++		bmi  +		
+		lda  (SCRATCH_ZPWORD1),y
+		sta  SCRATCH_ZPB1
++		dey
+		cpy  #255
+		bne  -
+		lda  SCRATCH_ZPB1
+		sta  ESTACK_LO,x
+		dex
 		rts
-		.warn "todo func_max_b"
 		.pend
 		
 func_max_uw	.proc
@@ -1178,21 +1206,61 @@ func_max_w	.proc
 		.pend
 		
 func_max_f	.proc
-		inx
+		dex
 		rts
 		.warn "todo func_max_f"
 		.pend
 
-func_min_ub	.proc
+pop_array_and_lengthY	.proc
+		inx
+		ldy  ESTACK_LO,x
+		lda  ESTACK_LO+1,x
+		sta  SCRATCH_ZPWORD1
+		lda  ESTACK_HI+1,x
+		sta  SCRATCH_ZPWORD1+1
 		inx
 		rts
-		.warn "todo func_min_ub"
 		.pend
 		
-func_min_b	.proc
-		inx
+func_min_ub	.proc
+		jsr  pop_array_and_lengthY
+		lda  #255
+		sta  SCRATCH_ZPB1
+		dey
+-		lda  (SCRATCH_ZPWORD1),y
+		cmp  SCRATCH_ZPB1
+		bcs  +
+		sta  SCRATCH_ZPB1
++		dey
+		cpy  #255
+		bne  -
+		lda  SCRATCH_ZPB1
+		sta  ESTACK_LO,x
+		dex
+		rts
+		.pend
+		
+		
+func_min_b	.proc
+		jsr  pop_array_and_lengthY
+		lda  #127
+		sta  SCRATCH_ZPB1
+		dey
+-		lda  (SCRATCH_ZPWORD1),y
+		clc
+		sbc  SCRATCH_ZPB1
+		bvc  +
+		eor  #$80
++		bpl  +		
+		lda  (SCRATCH_ZPWORD1),y
+		sta  SCRATCH_ZPB1
++		dey
+		cpy  #255
+		bne  -
+		lda  SCRATCH_ZPB1
+		sta  ESTACK_LO,x
+		dex
 		rts
-		.warn "todo func_min_b"
 		.pend
 		
 func_min_uw	.proc
@@ -1208,7 +1276,7 @@ func_min_w	.proc
 		.pend
 		
 func_min_f	.proc
-		inx
+		dex
 		rts
 		.warn "todo func_min_f"
 		.pend
@@ -1267,7 +1335,7 @@ func_rndf	.proc
 		lda  #<_rndf_rnum5
 		ldy  #>_rndf_rnum5
 		jmp  push_float
-_rndf_rnum5	.fill 5
+_rndf_rnum5	.byte  0,0,0,0,0
 		.pend