diff --git a/bug/bug1.c b/bug/bug1.c
deleted file mode 100644
index 65cde19..0000000
--- a/bug/bug1.c
+++ /dev/null
@@ -1,28 +0,0 @@
-#pragma zp_reserve(0,1,2)
-
-volatile word tick_counts;
-
-__interrupt(hardware_all) void interrupt_handler() {
-   tick_counts++;
-}
-
-void install_interrupt() {
-   *((word *)0x0001) = (word) &interrupt_handler;
-}
-
-void main() {
-   // make some use of "tick_counts"
-   *((word *)0x0001) = tick_counts;
-
-   install_interrupt();
-}
-
-/*
-const byte *VDP_DATA = 0xA000;       // TMS9918 data port (VRAM)
-#define TMS_READ_DATA       (*VDP_DATA);
-
-void main() {
-   byte x = TMS_READ_DATA();
-   *((byte *)0xFFFF) = x;
-}
-*/
\ No newline at end of file
diff --git a/cc65/c.bat b/cc65/c.bat
deleted file mode 100644
index 1819642..0000000
--- a/cc65/c.bat
+++ /dev/null
@@ -1,4 +0,0 @@
-cl65 -D APPLE1 --target none  --start-addr $4000 -O test.c -o test_apple1.prg
-cl65 --listing test.lst -D VIC20 --target vic20 -O test.c -o test_vic20.prg
-
-
diff --git a/cc65/cbm_ascii_charmap.h b/cc65/cbm_ascii_charmap.h
deleted file mode 100644
index f1381ab..0000000
--- a/cc65/cbm_ascii_charmap.h
+++ /dev/null
@@ -1,262 +0,0 @@
-// modified CC65 charmap to allow pure ASCII on VIC20
-
-#pragma warn (remap-zero, push, off)
-
-#pragma charmap (0x00, 0x00)
-#pragma charmap (0x01, 0x01)
-#pragma charmap (0x02, 0x02)
-#pragma charmap (0x03, 0x03)
-#pragma charmap (0x04, 0x04)
-#pragma charmap (0x05, 0x05)
-#pragma charmap (0x06, 0x06)
-#pragma charmap (0x07, 0x07)
-#pragma charmap (0x08, 0x08)
-#pragma charmap (0x09, 0x09)
-#pragma charmap (0x0A, 0x0A)
-#pragma charmap (0x0B, 0x0B)
-#pragma charmap (0x0C, 0x0C)
-#pragma charmap (0x0D, 0x0D)
-#pragma charmap (0x0E, 0x0E)
-#pragma charmap (0x0F, 0x0F)
-#pragma charmap (0x10, 0x10)
-#pragma charmap (0x11, 0x11)
-#pragma charmap (0x12, 0x12)
-#pragma charmap (0x13, 0x13)
-#pragma charmap (0x14, 0x14)
-#pragma charmap (0x15, 0x15)
-#pragma charmap (0x16, 0x16)
-#pragma charmap (0x17, 0x17)
-#pragma charmap (0x18, 0x18)
-#pragma charmap (0x19, 0x19)
-#pragma charmap (0x1A, 0x1A)
-#pragma charmap (0x1B, 0x1B)
-#pragma charmap (0x1C, 0x1C)
-#pragma charmap (0x1D, 0x1D)
-#pragma charmap (0x1E, 0x1E)
-#pragma charmap (0x1F, 0x1F)
-#pragma charmap (0x20, 0x20)
-#pragma charmap (0x21, 0x21)
-#pragma charmap (0x22, 0x22)
-#pragma charmap (0x23, 0x23)
-#pragma charmap (0x24, 0x24)
-#pragma charmap (0x25, 0x25)
-#pragma charmap (0x26, 0x26)
-#pragma charmap (0x27, 0x27)
-#pragma charmap (0x28, 0x28)
-#pragma charmap (0x29, 0x29)
-#pragma charmap (0x2A, 0x2A)
-#pragma charmap (0x2B, 0x2B)
-#pragma charmap (0x2C, 0x2C)
-#pragma charmap (0x2D, 0x2D)
-#pragma charmap (0x2E, 0x2E)
-#pragma charmap (0x2F, 0x2F)
-#pragma charmap (0x30, 0x30)
-#pragma charmap (0x31, 0x31)
-#pragma charmap (0x32, 0x32)
-#pragma charmap (0x33, 0x33)
-#pragma charmap (0x34, 0x34)
-#pragma charmap (0x35, 0x35)
-#pragma charmap (0x36, 0x36)
-#pragma charmap (0x37, 0x37)
-#pragma charmap (0x38, 0x38)
-#pragma charmap (0x39, 0x39)
-#pragma charmap (0x3A, 0x3A)
-#pragma charmap (0x3B, 0x3B)
-#pragma charmap (0x3C, 0x3C)
-#pragma charmap (0x3D, 0x3D)
-#pragma charmap (0x3E, 0x3E)
-#pragma charmap (0x3F, 0x3F)
-#pragma charmap (0x40, 0x40)
-#pragma charmap (0x41, 0x41)
-#pragma charmap (0x42, 0x42)
-#pragma charmap (0x43, 0x43)
-#pragma charmap (0x44, 0x44)
-#pragma charmap (0x45, 0x45)
-#pragma charmap (0x46, 0x46)
-#pragma charmap (0x47, 0x47)
-#pragma charmap (0x48, 0x48)
-#pragma charmap (0x49, 0x49)
-#pragma charmap (0x4A, 0x4A)
-#pragma charmap (0x4B, 0x4B)
-#pragma charmap (0x4C, 0x4C)
-#pragma charmap (0x4D, 0x4D)
-#pragma charmap (0x4E, 0x4E)
-#pragma charmap (0x4F, 0x4F)
-#pragma charmap (0x50, 0x50)
-#pragma charmap (0x51, 0x51)
-#pragma charmap (0x52, 0x52)
-#pragma charmap (0x53, 0x53)
-#pragma charmap (0x54, 0x54)
-#pragma charmap (0x55, 0x55)
-#pragma charmap (0x56, 0x56)
-#pragma charmap (0x57, 0x57)
-#pragma charmap (0x58, 0x58)
-#pragma charmap (0x59, 0x59)
-#pragma charmap (0x5A, 0x5A)
-#pragma charmap (0x5B, 0x5B)
-#pragma charmap (0x5C, 0x5C)
-#pragma charmap (0x5D, 0x5D)
-#pragma charmap (0x5E, 0x5E)
-#pragma charmap (0x5F, 0x5F)
-#pragma charmap (0x60, 0x60)
-#pragma charmap (0x61, 0x61)
-#pragma charmap (0x62, 0x62)
-#pragma charmap (0x63, 0x63)
-#pragma charmap (0x64, 0x64)
-#pragma charmap (0x65, 0x65)
-#pragma charmap (0x66, 0x66)
-#pragma charmap (0x67, 0x67)
-#pragma charmap (0x68, 0x68)
-#pragma charmap (0x69, 0x69)
-#pragma charmap (0x6A, 0x6A)
-#pragma charmap (0x6B, 0x6B)
-#pragma charmap (0x6C, 0x6C)
-#pragma charmap (0x6D, 0x6D)
-#pragma charmap (0x6E, 0x6E)
-#pragma charmap (0x6F, 0x6F)
-#pragma charmap (0x70, 0x70)
-#pragma charmap (0x71, 0x71)
-#pragma charmap (0x72, 0x72)
-#pragma charmap (0x73, 0x73)
-#pragma charmap (0x74, 0x74)
-#pragma charmap (0x75, 0x75)
-#pragma charmap (0x76, 0x76)
-#pragma charmap (0x77, 0x77)
-#pragma charmap (0x78, 0x78)
-#pragma charmap (0x79, 0x79)
-#pragma charmap (0x7A, 0x7A)
-#pragma charmap (0x7B, 0x7B)
-#pragma charmap (0x7C, 0x7C)
-#pragma charmap (0x7D, 0x7D)
-#pragma charmap (0x7E, 0x7E)
-#pragma charmap (0x7F, 0x7F)
-#pragma charmap (0x80, 0x80)
-#pragma charmap (0x81, 0x81)
-#pragma charmap (0x82, 0x82)
-#pragma charmap (0x83, 0x83)
-#pragma charmap (0x84, 0x84)
-#pragma charmap (0x85, 0x85)
-#pragma charmap (0x86, 0x86)
-#pragma charmap (0x87, 0x87)
-#pragma charmap (0x88, 0x88)
-#pragma charmap (0x89, 0x89)
-#pragma charmap (0x8A, 0x8A)
-#pragma charmap (0x8B, 0x8B)
-#pragma charmap (0x8C, 0x8C)
-#pragma charmap (0x8D, 0x8D)
-#pragma charmap (0x8E, 0x8E)
-#pragma charmap (0x8F, 0x8F)
-#pragma charmap (0x90, 0x90)
-#pragma charmap (0x91, 0x91)
-#pragma charmap (0x92, 0x92)
-#pragma charmap (0x93, 0x93)
-#pragma charmap (0x94, 0x94)
-#pragma charmap (0x95, 0x95)
-#pragma charmap (0x96, 0x96)
-#pragma charmap (0x97, 0x97)
-#pragma charmap (0x98, 0x98)
-#pragma charmap (0x99, 0x99)
-#pragma charmap (0x9A, 0x9A)
-#pragma charmap (0x9B, 0x9B)
-#pragma charmap (0x9C, 0x9C)
-#pragma charmap (0x9D, 0x9D)
-#pragma charmap (0x9E, 0x9E)
-#pragma charmap (0x9F, 0x9F)
-#pragma charmap (0xA0, 0xA0)
-#pragma charmap (0xA1, 0xA1)
-#pragma charmap (0xA2, 0xA2)
-#pragma charmap (0xA3, 0xA3)
-#pragma charmap (0xA4, 0xA4)
-#pragma charmap (0xA5, 0xA5)
-#pragma charmap (0xA6, 0xA6)
-#pragma charmap (0xA7, 0xA7)
-#pragma charmap (0xA8, 0xA8)
-#pragma charmap (0xA9, 0xA9)
-#pragma charmap (0xAA, 0xAA)
-#pragma charmap (0xAB, 0xAB)
-#pragma charmap (0xAC, 0xAC)
-#pragma charmap (0xAD, 0xAD)
-#pragma charmap (0xAE, 0xAE)
-#pragma charmap (0xAF, 0xAF)
-#pragma charmap (0xB0, 0xB0)
-#pragma charmap (0xB1, 0xB1)
-#pragma charmap (0xB2, 0xB2)
-#pragma charmap (0xB3, 0xB3)
-#pragma charmap (0xB4, 0xB4)
-#pragma charmap (0xB5, 0xB5)
-#pragma charmap (0xB6, 0xB6)
-#pragma charmap (0xB7, 0xB7)
-#pragma charmap (0xB8, 0xB8)
-#pragma charmap (0xB9, 0xB9)
-#pragma charmap (0xBA, 0xBA)
-#pragma charmap (0xBB, 0xBB)
-#pragma charmap (0xBC, 0xBC)
-#pragma charmap (0xBD, 0xBD)
-#pragma charmap (0xBE, 0xBE)
-#pragma charmap (0xBF, 0xBF)
-#pragma charmap (0xC0, 0xC0)
-#pragma charmap (0xC1, 0xC1)
-#pragma charmap (0xC2, 0xC2)
-#pragma charmap (0xC3, 0xC3)
-#pragma charmap (0xC4, 0xC4)
-#pragma charmap (0xC5, 0xC5)
-#pragma charmap (0xC6, 0xC6)
-#pragma charmap (0xC7, 0xC7)
-#pragma charmap (0xC8, 0xC8)
-#pragma charmap (0xC9, 0xC9)
-#pragma charmap (0xCA, 0xCA)
-#pragma charmap (0xCB, 0xCB)
-#pragma charmap (0xCC, 0xCC)
-#pragma charmap (0xCD, 0xCD)
-#pragma charmap (0xCE, 0xCE)
-#pragma charmap (0xCF, 0xCF)
-#pragma charmap (0xD0, 0xD0)
-#pragma charmap (0xD1, 0xD1)
-#pragma charmap (0xD2, 0xD2)
-#pragma charmap (0xD3, 0xD3)
-#pragma charmap (0xD4, 0xD4)
-#pragma charmap (0xD5, 0xD5)
-#pragma charmap (0xD6, 0xD6)
-#pragma charmap (0xD7, 0xD7)
-#pragma charmap (0xD8, 0xD8)
-#pragma charmap (0xD9, 0xD9)
-#pragma charmap (0xDA, 0xDA)
-#pragma charmap (0xDB, 0xDB)
-#pragma charmap (0xDC, 0xDC)
-#pragma charmap (0xDD, 0xDD)
-#pragma charmap (0xDE, 0xDE)
-#pragma charmap (0xDF, 0xDF)
-#pragma charmap (0xE0, 0xE0)
-#pragma charmap (0xE1, 0xE1)
-#pragma charmap (0xE2, 0xE2)
-#pragma charmap (0xE3, 0xE3)
-#pragma charmap (0xE4, 0xE4)
-#pragma charmap (0xE5, 0xE5)
-#pragma charmap (0xE6, 0xE6)
-#pragma charmap (0xE7, 0xE7)
-#pragma charmap (0xE8, 0xE8)
-#pragma charmap (0xE9, 0xE9)
-#pragma charmap (0xEA, 0xEA)
-#pragma charmap (0xEB, 0xEB)
-#pragma charmap (0xEC, 0xEC)
-#pragma charmap (0xED, 0xED)
-#pragma charmap (0xEE, 0xEE)
-#pragma charmap (0xEF, 0xEF)
-#pragma charmap (0xF0, 0xF0)
-#pragma charmap (0xF1, 0xF1)
-#pragma charmap (0xF2, 0xF2)
-#pragma charmap (0xF3, 0xF3)
-#pragma charmap (0xF4, 0xF4)
-#pragma charmap (0xF5, 0xF5)
-#pragma charmap (0xF6, 0xF6)
-#pragma charmap (0xF7, 0xF7)
-#pragma charmap (0xF8, 0xF8)
-#pragma charmap (0xF9, 0xF9)
-#pragma charmap (0xFA, 0xFA)
-#pragma charmap (0xFB, 0xFB)
-#pragma charmap (0xFC, 0xFC)
-#pragma charmap (0xFD, 0xFD)
-#pragma charmap (0xFE, 0xFE)
-#pragma charmap (0xFF, 0xFF)
-
-#pragma warn (remap-zero, pop)
diff --git a/cc65/env.bat b/cc65/env.bat
deleted file mode 100644
index 76e393d..0000000
--- a/cc65/env.bat
+++ /dev/null
@@ -1 +0,0 @@
-PATH %PATH%;C:\Programmi\cc65-snapshot-win32\bin
\ No newline at end of file
diff --git a/cc65/laser500_font.ascii.c b/cc65/laser500_font.ascii.c
deleted file mode 100644
index 9621711..0000000
--- a/cc65/laser500_font.ascii.c
+++ /dev/null
@@ -1,856 +0,0 @@
-byte FONT[768] = {
-   0
-,  0
-,  0
-,  0
-,  0
-,  0
-,  0
-,  0
-,  8
-,  8
-
-,  8
-,  8
-,  8
-,  0
-,  8
-,  0
-,  20
-,  20
-
-,  20
-,  0
-,  0
-,  0
-,  0
-,  0
-,  20
-,  20
-
-,  62
-,  20
-,  62
-,  20
-,  20
-,  0
-,  8
-,  30
-
-,  40
-,  28
-,  10
-,  60
-,  8
-,  0
-,  48
-,  50
-
-,  4
-,  8
-,  16
-,  38
-,  6
-,  0
-,  16
-,  40
-
-,  40
-,  16
-,  42
-,  36
-,  26
-,  0
-,  8
-,  8
-
-,  8
-,  0
-,  0
-,  0
-,  0
-,  0
-,  8
-,  16
-
-,  32
-,  32
-,  32
-,  16
-,  8
-,  0
-
-,  8
-,  4
-,  2
-,  2
-,  2
-,  4
-,  8
-,  0
-
-,  8
-,  42
-,  28
-,  8
-,  28
-,  42
-,  8
-,  0
-
-,  0
-,  8
-,  8
-,  62
-,  8
-,  8
-,  0
-,  0
-
-,  0
-,  0
-,  0
-,  0
-,  8
-,  8
-,  16
-,  0
-
-,  0
-,  0
-,  0
-,  62
-,  0
-,  0
-,  0
-,  0
-
-,  0
-,  0
-,  0
-,  0
-,  0
-,  0
-,  8
-,  0
-
-,  0
-,  2
-,  4
-,  8
-,  16
-,  32
-,  0
-,  0
-
-,  28
-,  34
-,  38
-,  42
-,  50
-,  34
-,  28
-,  0
-
-,  8
-,  24
-,  8
-,  8
-,  8
-,  8
-,  28
-,  0
-
-,  28
-,  34
-,  2
-,  12
-,  16
-,  32
-,  62
-,  0
-
-,  62
-,  2
-,  4
-,  12
-,  2
-,  34
-,  28
-,  0
-
-,  4
-,  12
-,  20
-,  36
-,  62
-,  4
-,  4
-,  0
-
-,  62
-,  32
-,  60
-,  2
-,  2
-,  34
-,  28
-,  0
-
-,  14
-,  16
-,  32
-,  60
-,  34
-,  34
-,  28
-,  0
-
-,  62
-,  2
-,  4
-,  8
-,  16
-,  32
-,  32
-,  0
-
-,  28
-,  34
-,  34
-,  28
-,  34
-,  34
-,  28
-,  0
-
-,  28
-,  34
-,  34
-,  30
-,  2
-,  4
-,  56
-,  0
-
-,  0
-,  0
-,  8
-,  0
-,  8
-,  0
-,  0
-,  0
-
-,  0
-,  0
-,  8
-,  0
-,  8
-,  8
-,  16
-,  0
-
-,  4
-,  8
-,  16
-,  32
-,  16
-,  8
-,  4
-,  0
-
-,  0
-,  0
-,  62
-,  0
-,  62
-,  0
-,  0
-,  0
-
-,  16
-,  8
-,  4
-,  2
-,  4
-,  8
-,  16
-,  0
-
-,  28
-,  34
-,  4
-,  8
-,  8
-,  0
-,  8
-,  0
-
-,  28
-,  34
-,  42
-,  46
-,  44
-,  32
-,  28
-,  0
-
-,  8
-,  20
-,  34
-,  34
-,  62
-,  34
-,  34
-,  0
-
-,  60
-,  34
-,  34
-,  60
-,  34
-,  34
-,  60
-,  0
-
-,  28
-,  34
-,  32
-,  32
-,  32
-,  34
-,  28
-,  0
-
-,  56
-,  36
-,  34
-,  34
-,  34
-,  36
-,  56
-,  0
-
-,  62
-,  32
-,  32
-,  56
-,  32
-,  32
-,  62
-,  0
-
-,  62
-,  32
-,  32
-,  56
-,  32
-,  32
-,  32
-,  0
-
-,  30
-,  32
-,  32
-,  32
-,  38
-,  34
-,  30
-,  0
-
-,  34
-,  34
-,  34
-,  62
-,  34
-,  34
-,  34
-,  0
-
-,  28
-,  8
-,  8
-,  8
-,  8
-,  8
-,  28
-,  0
-
-,  2
-,  2
-,  2
-,  2
-,  2
-,  34
-,  28
-,  0
-
-,  34
-,  36
-,  40
-,  48
-,  40
-,  36
-,  34
-,  0
-
-,  32
-,  32
-,  32
-,  32
-,  32
-,  32
-,  62
-,  0
-
-,  34
-,  54
-,  42
-,  42
-,  34
-,  34
-,  34
-,  0
-
-,  34
-,  34
-,  50
-,  42
-,  38
-,  34
-,  34
-,  0
-
-,  28
-,  34
-,  34
-,  34
-,  34
-,  34
-,  28
-,  0
-
-,  60
-,  34
-,  34
-,  60
-,  32
-,  32
-,  32
-,  0
-
-,  28
-,  34
-,  34
-,  34
-,  42
-,  36
-,  26
-,  0
-
-,  60
-,  34
-,  34
-,  60
-,  40
-,  36
-,  34
-,  0
-
-,  28
-,  34
-,  32
-,  28
-,  2
-,  34
-,  28
-,  0
-
-,  62
-,  8
-,  8
-,  8
-,  8
-,  8
-,  8
-,  0
-
-,  34
-,  34
-,  34
-,  34
-,  34
-,  34
-,  28
-,  0
-
-,  34
-,  34
-,  34
-,  34
-,  34
-,  20
-,  8
-,  0
-
-,  34
-,  34
-,  34
-,  42
-,  42
-,  54
-,  34
-,  0
-
-,  34
-,  34
-,  20
-,  8
-,  20
-,  34
-,  34
-,  0
-
-,  34
-,  34
-,  20
-,  8
-,  8
-,  8
-,  8
-,  0
-
-,  62
-,  2
-,  4
-,  8
-,  16
-,  32
-,  62
-,  0
-
-,  62
-,  48
-,  48
-,  48
-,  48
-,  48
-,  62
-,  0
-
-,  0
-,  32
-,  16
-,  8
-,  4
-,  2
-,  0
-,  0
-
-,  62
-,  6
-,  6
-,  6
-,  6
-,  6
-,  62
-,  0
-
-,  8
-,  20
-,  34
-,  0
-,  0
-,  0
-,  0
-,  0
-
-,  0
-,  0
-,  0
-,  0
-,  0
-,  0
-,  0
-,  62
-
-,  16
-,  8
-,  4
-,  0
-,  0
-,  0
-,  0
-,  0
-
-,  0
-,  0
-,  28
-,  2
-,  30
-,  34
-,  30
-,  0
-
-,  32
-,  32
-,  60
-,  34
-,  34
-,  34
-,  60
-,  0
-
-,  0
-,  0
-,  30
-,  32
-,  32
-,  32
-,  30
-,  0
-
-,  2
-,  2
-,  30
-,  34
-,  34
-,  34
-,  30
-,  0
-
-,  0
-,  0
-,  28
-,  34
-,  62
-,  32
-,  30
-,  0
-
-,  12
-,  18
-,  16
-,  60
-,  16
-,  16
-,  16
-,  0
-
-,  0
-,  0
-,  28
-,  34
-,  34
-,  30
-,  2
-,  28
-
-,  32
-,  32
-,  60
-,  34
-,  34
-,  34
-,  34
-,  0
-
-,  8
-,  0
-,  24
-,  8
-,  8
-,  8
-,  28
-,  0
-
-,  2
-,  0
-,  6
-,  2
-,  2
-,  2
-,  18
-,  12
-
-,  32
-,  32
-,  34
-,  36
-,  56
-,  36
-,  34
-,  0
-
-,  24
-,  8
-,  8
-,  8
-,  8
-,  8
-,  28
-,  0
-
-,  0
-,  0
-,  52
-,  42
-,  42
-,  42
-,  34
-,  0
-
-,  0
-,  0
-,  60
-,  34
-,  34
-,  34
-,  34
-,  0
-
-,  0
-,  0
-,  28
-,  34
-,  34
-,  34
-,  28
-,  0
-
-,  0
-,  0
-,  60
-,  34
-,  34
-,  60
-,  32
-,  32
-
-,  0
-,  0
-,  30
-,  34
-,  34
-,  30
-,  2
-,  2
-
-,  0
-,  0
-,  46
-,  48
-,  32
-,  32
-,  32
-,  0
-
-,  0
-,  0
-,  30
-,  32
-,  28
-,  2
-,  60
-,  0
-
-,  16
-,  16
-,  60
-,  16
-,  16
-,  18
-,  12
-,  0
-
-,  0
-,  0
-,  34
-,  34
-,  34
-,  38
-,  26
-,  0
-
-,  0
-,  0
-,  34
-,  34
-,  34
-,  20
-,  8
-,  0
-
-,  0
-,  0
-,  34
-,  34
-,  42
-,  42
-,  20
-,  0
-
-,  0
-,  0
-,  34
-,  20
-,  8
-,  20
-,  34
-,  0
-
-,  0
-,  0
-,  34
-,  36
-,  20
-,  24
-,  8
-,  48
-
-,  0
-,  0
-,  62
-,  4
-,  8
-,  16
-,  62
-,  0
-
-,  6
-,  8
-,  8
-,  48
-,  8
-,  8
-,  6
-,  0
-
-,  8
-,  8
-,  8
-,  8
-,  8
-,  8
-,  8
-,  8
-
-,  48
-,  8
-,  8
-,  6
-,  8
-,  8
-,  48
-,  0
-
-,  26
-,  44
-,  0
-,  0
-,  0
-,  0
-,  0
-,  0
-};
diff --git a/cc65/screen1.c b/cc65/screen1.c
deleted file mode 100644
index e2cc607..0000000
--- a/cc65/screen1.c
+++ /dev/null
@@ -1,104 +0,0 @@
-// SCREEN 1 VALUES
-
-// sprite patterns:    $0000
-// pattern table:      $0800   (256*8)
-// sprite attributes:  $1000
-// unused:             $1080
-// name table:         $1400   (32*24)
-// unused:             $1800
-// color table:        $2000   (32)
-// unused              $2020-$3FFF
-
-#define SCREEN1_PATTERN_TABLE   0x0800
-#define SCREEN1_NAME_TABLE      0x1400
-#define SCREEN1_COLOR_TABLE     0x2000
-#define SCREEN1_SPRITE_PATTERNS 0x0000
-#define SCREEN1_SPRITE_ATTRS    0x1000
-#define SCREEN1_SIZE            (32*24)
-
-byte SCREEN1_TABLE[8] = {
-   0x00, 0xc0, 0x05, 0x80, 0x01, 0x20, 0x00, 0x25
-};
-
-// loads the Laser 500 font on the pattern table
-void SCREEN1_LOAD_FONT() {
-
-   static byte *source = FONT;
-   static word i;
-
-   // start writing into VRAM from "space" character
-   set_vram_addr(SCREEN1_PATTERN_TABLE+(32*8));
-   for(i=0;i<768;i++) {
-      POKE(VDP_DATA, *source);
-      source++;
-   }
-
-   source = FONT;
-   set_vram_addr(SCREEN1_PATTERN_TABLE+((128+32)*8));
-   for(i=0;i<768;i++) {
-      POKE(VDP_DATA, ~(*source));
-      source++;
-   }
-
-   // TODO: inverted characters ?
-}
-
-// prints character to TMS (SCREEN 1 MODE)
-void fastcall SCREEN1_PUTCHAR(byte c) {
-   set_vram_addr(tms_cursor);
-   POKE(VDP_DATA, c);
-   tms_cursor++;
-}
-
-// prints 0 terminated string pointed by YA
-void SCREEN1_PUTS(char *s) {
-   byte c;
-
-   while(1) {
-      c = *s;
-      // c = *s & 127;     // TODO: explain why???
-      if(c==0) return;
-      SCREEN1_PUTCHAR(c);
-      s++;
-   }
-}
-
-void SCREEN1_HOME() {
-   tms_cursor = SCREEN1_NAME_TABLE;
-}
-
-void SCREEN1_LOCATEXY(byte x, byte y) {
-   tms_cursor = SCREEN1_NAME_TABLE + ((word)y)*32 + x;
-}
-
-void SCREEN1_INIT() {
-   static byte i;
-   for(i=0;i<8;i++) {
-      write_reg(i, SCREEN1_TABLE[i]);
-   }
-}
-
-void SCREEN1_FILL() {
-   static word i;
-
-   // fills name table with spaces (32)
-   set_vram_addr(SCREEN1_NAME_TABLE);
-   for(i=0;i<SCREEN1_SIZE;i++) {
-      POKE(VDP_DATA, 32);
-      // nops here?
-   }
-
-   // fill pattern table with 0
-   set_vram_addr(SCREEN1_PATTERN_TABLE);
-   for(i=0;i<256*8;i++) {
-      POKE(VDP_DATA, 0);
-      // nops here?
-   }
-
-   // fill color table with $1F
-   set_vram_addr(SCREEN1_COLOR_TABLE);
-   for(i=0;i<32;i++) {
-      POKE(VDP_DATA, 0x1f);
-      // nops here?
-   }
-}
diff --git a/cc65/screen2.c b/cc65/screen2.c
deleted file mode 100644
index fb20fdf..0000000
--- a/cc65/screen2.c
+++ /dev/null
@@ -1,115 +0,0 @@
-// SCREEN 2 VALUES
-
-// pattern table:      $0000-$17FF   (256*8*3)
-// sprite patterns:    $1800-$19FF
-// color table:        $2000-$27FF   (256*8*3)
-// name table:         $3800-$3AFF   (32*24 = 256*3 = 768)
-// sprite attributes:  $3B00-$3BFF
-// unused              $3C00-$3FFF
-//
-
-#define SCREEN2_PATTERN_TABLE   0x0000
-#define SCREEN2_NAME_TABLE      0x3800
-#define SCREEN2_COLOR_TABLE     0x2000
-#define SCREEN2_SPRITE_PATTERNS 0x1800
-#define SCREEN2_SPRITE_ATTRS    0x3b00
-#define SCREEN2_SIZE            (32*24)
-
-byte SCREEN2_TABLE[8] = {
-   0x02, 0xc0, 0x0e, 0xff, 0x03, 0x76, 0x03, 0x25
-};
-
-void SCREEN2_INIT() {
-   static byte i;
-   for(i=0;i<8;i++) {
-      write_reg(i, SCREEN2_TABLE[i]);
-   }
-}
-
-void SCREEN2_FILL() {
-   static word i;
-
-   // fills name table x3 with increasing numbers
-   set_vram_addr(SCREEN2_NAME_TABLE);
-   for(i=0;i<SCREEN2_SIZE;i++) {
-      POKE(VDP_DATA, i & 0xFF);
-   }
-
-   // fill pattern table with 0 (clear screen)
-   set_vram_addr(SCREEN2_PATTERN_TABLE);
-   for(i=0;i<768*8;i++) {
-      POKE(VDP_DATA, 0);
-   }
-
-   // fill color table with $1F
-   set_vram_addr(SCREEN2_COLOR_TABLE);
-   for(i=0;i<768*8;i++) {
-      POKE(VDP_DATA, 0x1f);
-   }
-}
-
-void SCREEN2_PUTC(byte ch, byte x, byte y, byte col) {
-   byte *source = &FONT[(ch-32)*8];
-   byte i;
-   word paddr = SCREEN2_PATTERN_TABLE + x*8 + y*256;
-   word caddr = SCREEN2_COLOR_TABLE   + x*8 + y*256;
-
-   set_vram_addr(paddr); for(i=0;i<8;i++) POKE(VDP_DATA, source[i]);
-   set_vram_addr(caddr); for(i=0;i<8;i++) POKE(VDP_DATA, col);
-}
-
-void SCREEN2_PUTS(byte x, byte y, byte col, char *s) {
-   while(*s) {
-      SCREEN2_PUTC(*s++, x++, y, col);
-   }
-}
-
-void SCREEN2_PSET(byte x, byte y) {
-   word paddr = SCREEN2_PATTERN_TABLE + (x & 0b11111000) + (y & 0b11111000)*32 + y%8;
-   byte pattern = 128 >> (x%8);
-   byte data;
-
-   set_vram_read_addr(paddr);
-   data = PEEK(VDP_DATA);
-   set_vram_addr(paddr);
-   POKE(VDP_DATA,data | pattern);
-}
-
-// int vti_abs(int x) {
-//     return x < 0 ? -x : x;
-// }
-//
-// // http://members.chello.at/~easyfilter/bresenham.html
-// void vti_ellipse_rect(int x0, int y0, int x1, int y1)
-// {
-//     long a,b,b1,dx,dy,e2,err;
-//
-//     a = vti_abs(x1-x0);
-//     b = vti_abs(y1-y0);
-//     b1 = b&1; /* values of diameter */
-//     dx = 4*(1-a)*b*b;
-//     dy = 4*(b1+1)*a*a; /* error increment */
-//     err = dx+dy+b1*a*a; /* error of 1.step */
-//
-//     if (x0 > x1) { x0 = x1; x1 += a; } /* if called with swapped points */
-//     if (y0 > y1) y0 = y1; /* .. exchange them */
-//     y0 += (b+1)/2; y1 = y0-b1;   /* starting pixel */
-//     a *= 8*a; b1 = 8*b*b;
-//
-//     do {
-//         SCREEN2_PSET(x1, y0); /*   I. Quadrant */
-//         SCREEN2_PSET(x0, y0); /*  II. Quadrant */
-//         SCREEN2_PSET(x0, y1); /* III. Quadrant */
-//         SCREEN2_PSET(x1, y1); /*  IV. Quadrant */
-//         e2 = 2*err;
-//         if (e2 <= dy) { y0++; y1--; err += dy += a; }  /* y step */
-//         if (e2 >= dx || 2*err > dy) { x0++; x1--; err += dx += b1; } /* x step */
-//     } while (x0 <= x1);
-//
-//     while (y0-y1 < b) {  /* too early stop of flat ellipses a=1 */
-//         SCREEN2_PSET(x0-1, y0); /* -> finish tip of ellipse */
-//         SCREEN2_PSET(x1+1, y0++);
-//         SCREEN2_PSET(x0-1, y1);
-//         SCREEN2_PSET(x1+1, y1--);
-//     }
-// }
diff --git a/cc65/test.c b/cc65/test.c
deleted file mode 100644
index 30f18ae..0000000
--- a/cc65/test.c
+++ /dev/null
@@ -1,157 +0,0 @@
-#ifdef APPLE1
-   #define WOZMON   0xFF1F       // enters monitor
-   #define ECHO     0xFFEF       // output ascii character in A (A not destroyed)
-   #define PRBYTE   0xFFDC       // print hex byte in A (A destroyed)
-   #define VDP_DATA 0xC000       // TMS9918 data port (VRAM)
-   #define VDP_REG  0xC001       // TMS9918 register port (write) or status (read)
-#endif
-
-#ifdef VIC20
-   #define ECHO     0xFFD2       // chrout routine in kernal rom
-   #define VDP_DATA 0xA000       // TMS9918 data port (VRAM)
-   #define VDP_REG  0xA001       // TMS9918 register port (write) or status (read)
-
-   #include "cbm_ascii_charmap.h"  // allow VIC-20 to work with pure ASCII
-
-#endif
-
-// TMS9918 interface flags
-#define WRITE_TO_REG   0b10000000
-#define WRITE_TO_VRAM  0b01000000
-#define READ_FROM_VRAM 0b00000000
-
-// utils
-typedef unsigned char byte;
-typedef unsigned int  word;
-
-#define POKE(a,b) (*((byte *)(a))=(byte)(b))
-#define PEEK(a)   (*((byte *)(a)))
-
-// puts a character on the apple1 screen using the WOZMON routine
-void fastcall woz_putc(byte c) {
-   asm("jsr %w", ECHO);
-}
-
-// returns to WOZMON prompt
-void woz_mon() {
-   #ifdef APPLE1
-      asm("jmp %w", WOZMON);
-   #endif
-}
-
-// sets the VRAM address on the TMS9918
-void fastcall set_vram_addr(word addr) {
-   asm("sta %w", VDP_REG);         // write address low byte
-   // nops here ?
-   asm("txa");                     // X = addres high byte
-   asm("and #%b", 0b00111111);     // mask address high byte
-   asm("ora #%b", WRITE_TO_VRAM);  // set "write to vram" flag bits "01" upper bits ("00" for read)
-   asm("sta %w", VDP_REG);         // write flags and address high byte
-   // nops here ?
-}
-
-// sets the VRAM address on the TMS9918
-void fastcall set_vram_read_addr(word addr) {
-   asm("sta %w", VDP_REG);         // write address low byte
-   // nops here ?
-   asm("txa");                     // X = addres high byte
-   asm("and #%b", 0b00111111);     // mask address high byte
-   asm("ora #%b", READ_FROM_VRAM); // set "write to vram" flag bits "01" upper bits ("00" for read)
-   asm("sta %w", VDP_REG);         // write flags and address high byte
-   // nops here ?
-}
-
-// writes a value to a TMS9918 register (0-7)
-void write_reg(byte regnum, byte val) {
-   // nops are not required
-   POKE(VDP_REG, val);
-   POKE(VDP_REG, (regnum & 0b00001111)|WRITE_TO_REG);
-}
-
-static word tms_cursor;
-
-#include "laser500_font.ascii.c"
-#include "screen1.c"
-#include "screen2.c"
-
-void screen1_square_sprites() {
-   static byte i;
-
-   // fills first sprite pattern with 255
-   set_vram_addr(SCREEN1_SPRITE_PATTERNS);    // start writing in the sprite patterns
-   for(i=0;i<8;i++) {
-      POKE(VDP_DATA, 255);
-   }
-
-   // set sprite coordinates
-   set_vram_addr(SCREEN1_SPRITE_ATTRS);       // start writing in the sprite attribute
-   for(i=0;i<32;i++) {
-      POKE(VDP_DATA,(6+i)*8);   // y coordinate
-      POKE(VDP_DATA,(6+i)*8);   // x coordinate
-      POKE(VDP_DATA,0);         // name
-      POKE(VDP_DATA,i);         // color
-   }
-}
-
-void screen2_square_sprites() {
-   static byte i;
-
-   // fills first sprite pattern with 255
-   set_vram_addr(SCREEN2_SPRITE_PATTERNS);    // start writing in the sprite patterns
-   for(i=0;i<8;i++) {
-      POKE(VDP_DATA, 0);
-   }
-
-   // set sprite coordinates
-   set_vram_addr(SCREEN2_SPRITE_ATTRS);       // start writing in the sprite attribute
-   for(i=0;i<32;i++) {
-      POKE(VDP_DATA,0);   // y coordinate
-      POKE(VDP_DATA,0);   // x coordinate
-      POKE(VDP_DATA,0);         // name
-      POKE(VDP_DATA,i);         // color
-   }
-}
-
-void main() {
-   word i;
-
-   if(0) {
-      SCREEN1_INIT();
-      SCREEN1_FILL();
-      SCREEN1_LOAD_FONT();
-
-      SCREEN1_HOME();         SCREEN1_PUTS("*** P-LAB  VIDEO CARD SYSTEM ***");
-      SCREEN1_LOCATEXY(0, 2); SCREEN1_PUTS("16K VRAM BYTES FREE");
-      SCREEN1_LOCATEXY(0, 4); SCREEN1_PUTS("READY.");
-
-      SCREEN1_LOCATEXY(0, 10);
-      for(i=0;i<256;i++) SCREEN1_PUTCHAR(i);
-
-      screen1_square_sprites();
-   }
-
-   if(1) {
-      SCREEN2_INIT();
-      SCREEN2_FILL();
-      screen2_square_sprites();
-      //SCREEN2_PUTC(65,1,1,0x1F);
-
-      SCREEN2_PUTS(0,0,0x1F,"*** P-LAB  VIDEO CARD SYSTEM ***");
-      SCREEN2_PUTS(0,2,0x1F,"16K VRAM BYTES FREE");
-      SCREEN2_PUTS(0,4,0x1F,"READY.");
-
-      for(i=0;i<16;i++) {
-         SCREEN2_PUTS(5,6+i,((15-i)<<4)+i,"     COLOR     ");
-      }
-
-      for(i=0;i<192;i++) {
-         SCREEN2_PSET(i,i/2);
-         SCREEN2_PSET(i,i);
-         SCREEN2_PSET(i/2,i);
-      }
-   }
-
-   woz_putc(42);
-   woz_mon();
-}
-