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vt100-games/2048/uz80as/i8008.c

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/* ===========================================================================
* uz80as, an assembler for the Zilog Z80 and several other microprocessors.
*
* Intel 8008.
* ===========================================================================
*/
/* Max. memory 16K (14 bits addresses). */
#include "pp.h"
#include "err.h"
#include "options.h"
#include "uz80as.h"
#include <stddef.h>
/* pat:
* a: expr
* b: ADA,ADB,ADC,ADD,ADH,ADL,ADM,
* ACA,ACB,ACC,ACD,ACH,ACL,ACM,
* SUA,SUB,SUC,SUD,SUH,SUL,SUM,
* SBA,SBB,SBC,SBD,SBH,SBL,SBM,
* NDA,NDB,NDC,NDD,NDH,NDL,NDM,
* XRA,XRB,XRC,XRD,XRH,XRL,XRM,
* ORA,ORB,ORC,ORD,ORH,ORL,ORM,
* CPA,CPB,CPC,CPD,CPH,CPL,CPM
* c: NOP,LAB,LAC,LAD,LAE,LAH,LAL,LAM,
* LBA,LBB,LBC,LBD,LBE,LBH,LBL,LBM,
* LCA,LCB,LCC,LCD,LCE,LCH,LCL,LCM,
* LDA,LDB,LDC,LDD,LDE,LDH,LDL,LDM,
* LEA,LEB,LEC,LED,LEE,LEH,LEL,LEM,
* LHA,LHB,LHC,LHD,LHE,LHH,LHL,LHM,
* LLA,LLB,LLC,LLD,LLE,LLH,LLL,LLM,
* LMA,LMB,LMC,LMD,LME,LMH,LML,HLT
* d: JFC,CFC,JMP,CAL,JFZ,CFZ,
* JFS,CFS,JFP,CFP,
* JTC,CTC,JTZ,CTZ,
* JTS,CTS,JTP,CTP
* e: INB,INC,IND,INE,INH,INL
* f: DCB,DCC,DCD,DCE,DCH,DCL
* g: ADI,ACI,SUI,SBI,NDI,XRI,ORI,CPI
* h: LAI,LBI,LCI,LDI,LEI,LHI,LLI,LMI
* i: RFC,RFS,RTC,RTS,RFZ,RFP,RTZ,RTP
* j: RLC,RRC,RAL,RAR
*
* gen:
* .: output lastbyte
* b: (op << 3) | lastbyte
* c: op | lastbyte
* d: lastbyte = op as 8 bit value
* e: output op as word (no '.' should follow)
* f: (op << 1) | lastbyte, op in [0-7]
* g: (op << 1) | lastbyte, op in [8-31]
* h: (op << 4) | lastbyte
* i: (op << 1) | lastbyte
* j: (op << 3) | lastbyte, op in [0-7]
*/
static const struct matchtab s_matchtab_i8008[] = {
{ "RET", "07.", 1, 0 },
{ "j", "02b0.", 1, 0 },
{ "i", "03b0.", 1, 0 },
{ "h a", "06b0.d1.", 1, 0, "e8" },
{ "g a", "04b0.d1.", 1, 0, "e8" },
{ "e", "00b0.", 1, 0 },
{ "f", "01b0.", 1, 0 },
{ "RST a", "05j0.", 1, 0, "b3" },
{ "d a", "40i0.e1", 1, 0 },
{ "INP a", "41f0.", 1, 0, "b3" },
{ "OUT a", "41g0.", 1, 0, "kk" },
{ "b", "80c0.", 1, 0 },
{ "c", "C0c0.", 1, 0 },
{ NULL, NULL },
};
static const char *const bval[] = {
"ADA", "ADB", "ADC", "ADD", "ADE", "ADH", "ADL", "ADM",
"ACA", "ACB", "ACC", "ACD", "ACE", "ACH", "ACL", "ACM",
"SUA", "SUB", "SUC", "SUD", "SUE", "SUH", "SUL", "SUM",
"SBA", "SBB", "SBC", "SBD", "SBE", "SBH", "SBL", "SBM",
"NDA", "NDB", "NDC", "NDD", "NDE", "NDH", "NDL", "NDM",
"XRA", "XRB", "XRC", "XRD", "XRE", "XRH", "XRL", "XRM",
"ORA", "ORB", "ORC", "ORD", "ORE", "ORH", "ORL", "ORM",
"CPA", "CPB", "CPC", "CPD", "CPE", "CPH", "CPL", "CPM",
NULL };
static const char *const cval[] = {
"NOP", "LAB", "LAC", "LAD", "LAE", "LAH", "LAL", "LAM",
"LBA", "LBB", "LBC", "LBD", "LBE", "LBH", "LBL", "LBM",
"LCA", "LCB", "LCC", "LCD", "LCE", "LCH", "LCL", "LCM",
"LDA", "LDB", "LDC", "LDD", "LDE", "LDH", "LDL", "LDM",
"LEA", "LEB", "LEC", "LED", "LEE", "LEH", "LEL", "LEM",
"LHA", "LHB", "LHC", "LHD", "LHE", "LHH", "LHL", "LHM",
"LLA", "LLB", "LLC", "LLD", "LLE", "LLH", "LLL", "LLM",
"LMA", "LMB", "LMC", "LMD", "LME", "LMH", "LML", "HLT",
NULL };
static const char *const dval[] = {
"JFC", "CFC", "JMP", "CAL", "JFZ", "CFZ", "", "",
"JFS", "CFS", "", "", "JFP", "CFP", "", "",
"JTC", "CTC", "", "", "JTZ", "CTZ", "", "",
"JTS", "CTS", "", "", "JTP", "CTP",
NULL };
static const char *const eval[] = { "", "INB", "INC", "IND",
"INE", "INH", "INL",
NULL };
static const char *const fval[] = { "", "DCB", "DCC", "DCD",
"DCE", "DCH", "DCL",
NULL };
static const char *const gval[] = { "ADI", "ACI", "SUI", "SBI",
"NDI", "XRI", "ORI", "CPI",
NULL };
static const char *const hval[] = { "LAI", "LBI", "LCI", "LDI",
"LEI", "LHI", "LLI", "LMI",
NULL };
static const char *const ival[] = { "RFC", "RFZ", "RFS", "RFP",
"RTC", "RTZ", "RTS", "RTP",
NULL };
static const char *const jval[] = { "RLC", "RRC", "RAL", "RAR",
NULL };
static const char *const *const valtab[] = {
bval, cval, dval, eval, fval,
gval, hval, ival, jval
};
static int match_i8008(char c, const char *p, const char **q)
{
int v;
if (c <= 'j') {
v = mreg(p, valtab[(int) (c - 'b')], q);
} else {
v = -1;
}
return v;
}
static int gen_i8008(int *eb, char p, const int *vs, int i, int savepc)
{
int b;
b = *eb;
switch (p) {
case 'f': if (s_pass > 0 && (vs[i] < 0 || vs[i] > 7)) {
eprint(_("argument (%d) must be in range [0-7]\n"),
vs[i]);
eprcol(s_pline, s_pline_ep);
newerr();
}
b |= (vs[i] << 1);
break;
case 'g': if (s_pass > 0 && (vs[i] < 8 || vs[i] > 31)) {
eprint(_("argument (%d) must be in range [8-31]\n"),
vs[i]);
eprcol(s_pline, s_pline_ep);
newerr();
}
b |= (vs[i] << 1);
break;
case 'h': b |= (vs[i] << 4); break;
case 'i': b |= (vs[i] << 1); break;
case 'j': if (s_pass > 0 && (vs[i] < 0 || vs[i] > 7)) {
eprint(_("argument (%d) must be in range [0-7]\n"),
vs[i]);
eprcol(s_pline, s_pline_ep);
newerr();
}
b |= (vs[i] << 3);
break;
default:
return -1;
}
*eb = b;
return 0;
}
static int s_pat_char = 'b';
static int s_pat_index;
static void pat_char_rewind_i8008(int c)
{
s_pat_char = c;
s_pat_index = 0;
};
static const char *pat_next_str_i8008(void)
{
const char *s;
if (s_pat_char >= 'b' && s_pat_char <= 'j') {
s = valtab[(int) (s_pat_char - 'b')][s_pat_index];
if (s != NULL) {
s_pat_index++;
}
} else {
s = NULL;
}
return s;
};
const struct target s_target_i8008 = {
.id = "i8008",
.descr = "Intel 8008",
.matcht = s_matchtab_i8008,
.matchf = match_i8008,
.genf = gen_i8008,
.pat_char_rewind = pat_char_rewind_i8008,
.pat_next_str = pat_next_str_i8008,
.mask = 1
};