sdcc/support/regression/tests/bug-3791.c

   1 /* bug-3791.c
   2    Ran into an assertion in z80 code generation.
   3 */
   4
   5 // Based on code by "Under4Mhz" licensed under GPL 2.0 or later
   6
   7 #include <testfwk.h>
   8
   9 #include <stdint.h>
  10
  11 #define BYTE_HI2(x) ((x)>>8)
  12 #define vdu_address_set2(address) { VDPControlPort=address; VDPControlPort=BYTE_HI2((address) ); }
  13 #define vdu_next_set_fast2(value) VDPDataPortOut = value
  14 #define VDU_SPRITE_POSITION_TABLE_ADDRESS2 0x1B00
  15
  16 #define __IO_VDP_DATA_OUT   #0xbe
  17 #define __IO_VDP_COMMAND    #0xbf
  18
  19 #ifdef __SDCC_z80
  20 static volatile __sfr __at __IO_VDP_COMMAND VDPControlPort;
  21 static volatile __sfr __at __IO_VDP_DATA_OUT VDPDataPortOut;
  22 #else
  23 static volatile unsigned char VDPControlPort;
  24 static volatile unsigned char VDPDataPortOut;
  25 #endif
  26
  27 ///< Set position of sprite
  28 void vdu_sprite_position_set_fast( uint8_t id ) {
  29
  30     vdu_address_set2( VDU_SPRITE_POSITION_TABLE_ADDRESS2 + id );
  31
  32     vdu_next_set_fast2( id );
  33 }
  34
  35 void testBug( void )
  36 {
  37 }
  38