68K Machine Language Code Generation in C

Fork

/* Scatter test of exchange, swap, move peripheral/control */
/* Assigned by the author to the public domain, February 2000, Takino, Japan. */
/* joel_rees@sannet.ne.jp */
/* http://www.page.sannet.ne.jp/joel_rees */


#include "code.h"
#include <stdio.h>

int main()
{  int err;
   CODE *v1 = dap;
   CODE *v2 = dap += 4;
   CODE *s1 = dap += 4;
   CODE *s2 = dap += 16;
   CODE *f = cap;
   CODE *targ1, *targ2, *obj;

   printf("here?\n");
   v1[0] = 0x0000;
   v1[1] = 0x4321;
   v1[2] = 0x5678;
   v1[3] = 0x9012;
   v2[0] = 0x0876;
   v2[1] = 0x2345;
   v2[2] = 0x9012;
   v2[3] = 0x5489;
   strcpy((char *) s1, "hello there");
   err = genLINK(6, -30);
   err = genPUSH(CLONG, _PSH(E_An|1)|_PSH(E_An|2)|_PSH(E_An|3)
			|_PSH(E_Dn|6)|_PSH(E_Dn|7)|_PSH(E_Dn|0),
		 E_InDEC|7, 0, 0);
   err = genMOVE(CLONG, E_IMM, 0, (long) v2, E_An|2, 0, 0);
   err = genMOVE(CLONG, E_IMM, 0, (long) v2, E_An|3, 0, 0);
   err = genMOVE(CBYTE, E_IMM, 0, 0xc, E_Dn|7, 0, 0);
   err = genMOVE(CBYTE, E_IMM, 0, 0x4356, E_Dn|6, 0, 0);
   err = genMOVEP(CBYTE, E_Dn|7, 0, E_InOFF|2, 4); /* */
   err = genEXG(E_An|2, E_An|3);
   err = genEXG(E_Dn|7, E_An|3);
   err = genEXG(E_An|2, E_Dn|6);
   err = genEXG(E_Dn|7, E_Dn|6);
   err = genEXT(CBYTE, E_Dn|1); /* */
   err = genEXT(CWORD, E_Dn|6);
   err = genEXT(CLONG, E_Dn|7);
   err = genEXT(CLONG, E_Dn|0);
   err = genSWAP(E_Dn|0);
   err = genSWAP(E_Dn|7);
   err = genMOVEP(CWORD, E_Dn|7, 0, E_InOFF|2, 4);
   err = genMOVEP(CLONG, E_InOFF|3, 2, E_Dn|6, 0);
   err = genMOVEP(CLONG, E_Dn|7, 0, E_InOFF|2, 4);
   err = genMOVEP(CWORD, E_InOFF|3, 2, E_Dn|6, 0);
   err = genMOVEC(E_DFC, E_Dn|7);
   err = genMOVEC(E_Dn|7, E_SFC);
   err = genMOVEC(E_SFC, E_Dn|0);
   err = genMOVEC(E_Dn|0, E_DFC);
   err = genMOVEC(E_VBR, E_An|2);
   err = genMOVEC(E_An|3, E_VBR);
   err = genMOVEC(E_An|7, E_USP);
   err = genMOVEC(E_USP, E_An|2);
   /* non intuitive, but legal:  */
   err = genMOVEC(E_DFC, E_An|7);
   err = genMOVEC(E_An|7, E_SFC);
   err = genMOVEC(E_SFC, E_An|0);
   err = genMOVEC(E_An|0, E_DFC);
   err = genMOVEC(E_VBR, E_Dn|2);
   err = genMOVEC(E_Dn|3, E_VBR);
   err = genMOVEC(E_Dn|7, E_USP);
   err = genMOVEC(E_USP, E_Dn|2);
   err = genPULL(CLONG, E_InINC|7, 0, 0,
		 _PUL(E_An|1)|_PUL(E_An|2)|_PUL(E_An|3)
		 |_PUL(E_Dn|6)|_PUL(E_Dn|7)|_PUL(E_Dn|0));
   err = genUNLK(6);
   err = genRTS;
   err = (*(PFI) f)();
   printf("what? %lx\n", err);
   return(0);
}