main.c: In function 'vectordrawtopoint':
main.c:46:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_cntl             0xD00C   //VIA control register
                              ^
main.c:98:16: note: in expansion of macro 'VIA_cntl'
  vectrexwrite (VIA_cntl, 0xCC); // Enable #ZERO and try to enable #BLANK
                ^~~~~~~~
main.c:14:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_port_b           0xD000   //VIA port B data I/O register
                              ^
main.c:102:17: note: in expansion of macro 'VIA_port_b'
   vectrexwrite (VIA_port_b, 0x84); // Mux to Z, #RAMP disabled
                 ^~~~~~~~~~
main.c:25:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_port_a           0xD001   //VIA port A data I/O register (handshaking)
                              ^
main.c:103:17: note: in expansion of macro 'VIA_port_a'
   vectrexwrite (VIA_port_a, intensity); //Set Z
                 ^~~~~~~~~~
main.c:14:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_port_b           0xD000   //VIA port B data I/O register
                              ^
main.c:104:17: note: in expansion of macro 'VIA_port_b'
   vectrexwrite (VIA_port_b, 0x85); // Store Z
                 ^~~~~~~~~~
main.c:46:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_cntl             0xD00C   //VIA control register
                              ^
main.c:107:16: note: in expansion of macro 'VIA_cntl'
  vectrexwrite (VIA_cntl, 0xCE); //#ZERO Disabled, #BLANK Enabled
                ^~~~~~~~
main.c:14:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_port_b           0xD000   //VIA port B data I/O register
                              ^
main.c:109:16: note: in expansion of macro 'VIA_port_b'
  vectrexwrite (VIA_port_b, 0x81); //Mux Disabled, #RAMP Disabled
                ^~~~~~~~~~
main.c:25:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_port_a           0xD001   //VIA port A data I/O register (handshaking)
                              ^
main.c:110:16: note: in expansion of macro 'VIA_port_a'
  vectrexwrite (VIA_port_a, ystrength); //Y Strength
                ^~~~~~~~~~
main.c:14:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_port_b           0xD000   //VIA port B data I/O register
                              ^
main.c:111:16: note: in expansion of macro 'VIA_port_b'
  vectrexwrite (VIA_port_b, 0x80); //Store Y
                ^~~~~~~~~~
main.c:14:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_port_b           0xD000   //VIA port B data I/O register
                              ^
main.c:112:16: note: in expansion of macro 'VIA_port_b'
  vectrexwrite (VIA_port_b, 0x81);
                ^~~~~~~~~~
main.c:25:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_port_a           0xD001   //VIA port A data I/O register (handshaking)
                              ^
main.c:113:16: note: in expansion of macro 'VIA_port_a'
  vectrexwrite (VIA_port_a, xstrength); //X Strength (connected directly, doesn't need to be stored)
                ^~~~~~~~~~
main.c:46:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_cntl             0xD00C   //VIA control register
                              ^
main.c:118:17: note: in expansion of macro 'VIA_cntl'
   vectrexwrite (VIA_cntl, 0xEE); // Disable #ZERO and try to disable #BLANK
                 ^~~~~~~~
main.c:34:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_shift_reg        0xD00A   //VIA shift register
                              ^
main.c:119:17: note: in expansion of macro 'VIA_shift_reg'
   vectrexwrite (VIA_shift_reg, 0xFF); // #BLANK disabled
                 ^~~~~~~~~~~~~
main.c:29:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_t1_cnt_hi        0xD005   //VIA timer 1 count register hi
                              ^
main.c:120:24: note: in expansion of macro 'VIA_t1_cnt_hi'
          vectrexwrite (VIA_t1_cnt_hi, 0); // start timer - Disables #BLANK
                        ^~~~~~~~~~~~~
main.c:46:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_cntl             0xD00C   //VIA control register
                              ^
main.c:124:17: note: in expansion of macro 'VIA_cntl'
   vectrexwrite (VIA_cntl, 0xCE); // #ZERO Disabled, #BLANK Enabled
                 ^~~~~~~~
main.c:34:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_shift_reg        0xD00A   //VIA shift register
                              ^
main.c:125:17: note: in expansion of macro 'VIA_shift_reg'
   vectrexwrite (VIA_shift_reg, 0x00); // #BLANK Enabled
                 ^~~~~~~~~~~~~
main.c:34:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_shift_reg        0xD00A   //VIA shift register
                              ^
main.c:126:17: note: in expansion of macro 'VIA_shift_reg'
   vectrexwrite (VIA_shift_reg, 0); // Start timer - Enabled #BLANK
                 ^~~~~~~~~~~~~
main.c:14:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_port_b           0xD000   //VIA port B data I/O register
                              ^
main.c:132:16: note: in expansion of macro 'VIA_port_b'
  vectrexwrite (VIA_port_b, 0x81); // Disable #RAMP
                ^~~~~~~~~~
main.c:46:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_cntl             0xD00C   //VIA control register
                              ^
main.c:136:17: note: in expansion of macro 'VIA_cntl'
   vectrexwrite (VIA_cntl, 0xCC); // Enable #ZERO and enable #BLANK
                 ^~~~~~~~
main.c:34:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_shift_reg        0xD00A   //VIA shift register
                              ^
main.c:137:17: note: in expansion of macro 'VIA_shift_reg'
   vectrexwrite (VIA_shift_reg, 0); // Enable #BLANK
                 ^~~~~~~~~~~~~
main.c:46:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_cntl             0xD00C   //VIA control register
                              ^
main.c:145:18: note: in expansion of macro 'VIA_cntl'
    vectrexwrite (VIA_cntl, 0xCE); // Enable #ZERO and enable #BLANK
                  ^~~~~~~~
main.c:34:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_shift_reg        0xD00A   //VIA shift register
                              ^
main.c:146:18: note: in expansion of macro 'VIA_shift_reg'
    vectrexwrite (VIA_shift_reg, 0); // Enable #BLANK
                  ^~~~~~~~~~~~~
main.c: In function 'main':
main.c:26:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_DDR_b            0xD002   //VIA port B data direction register (0=input 1=output)
                              ^
main.c:170:16: note: in expansion of macro 'VIA_DDR_b'
  vectrexwrite (VIA_DDR_b, 0x9F); // All Outputs except COMPARE input and PB6 at Cartridge Port
                ^~~~~~~~~
main.c:27:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_DDR_a            0xD003   //VIA port A data direction register (0=input 1=output)
                              ^
main.c:171:16: note: in expansion of macro 'VIA_DDR_a'
  vectrexwrite (VIA_DDR_a, 0xFF); // All Outputs
                ^~~~~~~~~
main.c:35:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define VIA_aux_cntl         0xD00B   //VIA auxiliary control register
                              ^
main.c:176:16: note: in expansion of macro 'VIA_aux_cntl'
  vectrexwrite (VIA_aux_cntl, 0x98);
                ^~~~~~~~~~~~