209 lines
5.4 KiB
C
209 lines
5.4 KiB
C
/* ===========================================================================
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* uz80as, an assembler for the Zilog Z80 and several other microprocessors.
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*
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* Datapoint 2200.
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* ===========================================================================
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*/
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/*
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* Datapoint 2200 Version I, 2K to 8K mem (program counter 13 bits).
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* Datapoint 2200 Version II, 2K to 16K mem (protram counter 14 bits).
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*/
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#include "pp.h"
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#include "err.h"
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#include "options.h"
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#include "uz80as.h"
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#include <stddef.h>
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/* pat:
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* a: expr
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* b: ADA,ADB,ADC,ADD,ADH,ADL,ADM,
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* ACA,ACB,ACC,ACD,ACH,ACL,ACM,
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* SUA,SUB,SUC,SUD,SUH,SUL,SUM,
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* SBA,SBB,SBC,SBD,SBH,SBL,SBM,
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* NDA,NDB,NDC,NDD,NDH,NDL,NDM,
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* XRA,XRB,XRC,XRD,XRH,XRL,XRM,
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* ORA,ORB,ORC,ORD,ORH,ORL,ORM,
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* CPA,CPB,CPC,CPD,CPH,CPL,CPM
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* c: NOP,LAB,LAC,LAD,LAE,LAH,LAL,LAM,
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* LBA,LBC,LBD,LBE,LBH,LBL,LBM,
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* LCA,LCB,LCD,LCE,LCH,LCL,LCM,
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* LDA,LDB,LDC,LDE,LDH,LDL,LDM,
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* LEA,LEB,LEC,LED,LEH,LEL,LEM,
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* LHA,LHB,LHC,LHD,LHE,LHL,LHM,
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* LLA,LLB,LLC,LLD,LLE,LLH,LLM,
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* LMA,LMB,LMC,LMD,LME,LMH,LML,HALT
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* d: ADR,STATUS,DATA,WRITE,COM1,COM2,COM3,COM4
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* BEEP,CLICK,DECK1,DECK2,
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* RBK,WBK,BSP,SF,SB,REWND,TSTOP
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* e: RFC,RFS,RTC,RTS,RFZ,RFP,RTZ,RTP
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* f: JFC,JFZ,JFS,JFP,JTC,JTZ,JTS,JTP
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* g: AD,SU,ND,OR,AC,SB,XR,CP
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* h: LA,LB,LC,LD,LE,LH,LL
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* i: CFC,CFZ,CFS,CFP,CTC,CTZ,CTS,CTP
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*
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* gen:
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* .: output lastbyte
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* b: (op << 3) | lastbyte
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* c: op | lastbyte
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* d: lastbyte = op as 8 bit value
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* e: output op as word (no '.' should follow)
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* f: (op << 1) + lastbyte
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* g: (op << 4) | lastbyte
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*/
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const struct matchtab s_matchtab_dp2200[] = {
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{ "SLC", "02.", 3, 0 },
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{ "SRC", "0A.", 3, 0 },
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{ "RETURN", "07.", 3, 0 },
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{ "INPUT", "41.", 3, 0 },
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{ "b", "80c0.", 3, 0 },
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{ "c", "C0c0.", 3, 0 },
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{ "EX d", "51f0.", 3, 0 },
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{ "e", "03b0.", 3, 0 },
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{ "g a", "04b0.d1.", 3, 0, "e8" },
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{ "h a", "06b0.d1.", 3, 0, "e8"},
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{ "f a", "40b0.e1", 3, 0 },
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{ "i a", "42b0.e1", 3, 0 },
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{ "JMP a", "44.e0", 3, 0 },
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{ "CALL a", "46.e0", 3, 0 },
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/* version II */
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{ "BETA", "10.", 2, 0 },
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{ "DI", "20.", 2, 0 },
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{ "POP", "30.", 2, 0 },
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{ "ALPHA", "18.", 2, 0 },
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{ "EI", "28.", 2, 0 },
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{ "PUSH", "38.", 2, 0 },
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{ NULL, NULL },
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};
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static const char *const bval[] = {
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"ADA", "ADB", "ADC", "ADD", "ADE", "ADH", "ADL", "ADM",
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"ACA", "ACB", "ACC", "ACD", "ACE", "ACH", "ACL", "ACM",
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"SUA", "SUB", "SUC", "SUD", "SUE", "SUH", "SUL", "SUM",
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"SBA", "SBB", "SBC", "SBD", "SBE", "SBH", "SBL", "SBM",
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"NDA", "NDB", "NDC", "NDD", "NDE", "NDH", "NDL", "NDM",
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"XRA", "XRB", "XRC", "XRD", "XRE", "XRH", "XRL", "XRM",
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"ORA", "ORB", "ORC", "ORD", "ORE", "ORH", "ORL", "ORM",
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"CPA", "CPB", "CPC", "CPD", "CPE", "CPH", "CPL", "CPM",
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NULL };
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static const char *const cval[] = {
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"NOP", "LAB", "LAC", "LAD", "LAE", "LAH", "LAL", "LAM",
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"LBA", "", "LBC", "LBD", "LBE", "LBH", "LBL", "LBM",
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"LCA", "LCB", "", "LCD", "LCE", "LCH", "LCL", "LCM",
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"LDA", "LDB", "LDC", "", "LDE", "LDH", "LDL", "LDM",
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"LEA", "LEB", "LEC", "LED", "", "LEH", "LEL", "LEM",
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"LHA", "LHB", "LHC", "LHD", "LHE", "", "LHL", "LHM",
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"LLA", "LLB", "LLC", "LLD", "LLE", "LLH", "", "LLM",
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"LMA", "LMB", "LMC", "LMD", "LME", "LMH", "LML", "HALT",
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NULL };
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static const char *const dval[] = {
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"ADR", "STATUS", "DATA", "WRITE", "COM1", "COM2", "COM3", "COM4",
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"", "", "", "", "BEEP", "CLICK", "DECK1", "DECK2",
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"RBK", "WBK", "", "BSP", "SF", "SB", "REWND", "TSTOP",
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NULL };
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static const char *const eval[] = { "RFC", "RFZ", "RFS", "RFP",
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"RTC", "RTZ", "RTS", "RTP",
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NULL };
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static const char *const fval[] = { "JFC", "JFZ", "JFS", "JFP",
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"JTC", "JTZ", "JTS", "JTP",
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NULL };
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static const char *const gval[] = { "AD", "AC", "SU", "SB",
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"ND", "XR", "OR", "CP",
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NULL };
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static const char *const hval[] = { "LA", "LB", "LC", "LD",
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"LE", "LH", "LL",
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NULL };
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static const char *const ival[] = { "CFC", "CFZ", "CFS", "CFP",
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"CTC", "CTZ", "CTS", "CTP",
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NULL };
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static const char *const *const valtab[] = {
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bval, cval, dval, eval, fval,
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gval, hval, ival
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};
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static int match_dp2200(char c, const char *p, const char **q)
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{
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int v;
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if (c <= 'i') {
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v = mreg(p, valtab[(int) (c - 'b')], q);
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} else {
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v = -1;
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}
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return v;
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}
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static int gen_dp2200(int *eb, char p, const int *vs, int i, int savepc)
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{
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int b;
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b = *eb;
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switch (p) {
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case 'f': b += (vs[i] << 1); break;
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case 'g': b |= (vs[i] << 4); break;
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default:
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return -1;
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}
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*eb = b;
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return 0;
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}
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static int s_pat_char = 'b';
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static int s_pat_index;
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static void pat_char_rewind_dp2200(int c)
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{
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s_pat_char = c;
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s_pat_index = 0;
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};
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static const char *pat_next_str_dp2200(void)
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{
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const char *s;
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if (s_pat_char >= 'b' && s_pat_char <= 'n') {
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s = valtab[(int) (s_pat_char - 'b')][s_pat_index];
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if (s != NULL) {
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s_pat_index++;
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}
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} else {
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s = NULL;
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}
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return s;
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};
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const struct target s_target_dp2200 = {
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.id = "dp2200",
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.descr = "Datapoint 2200 Version I",
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.matcht = s_matchtab_dp2200,
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.matchf = match_dp2200,
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.genf = gen_dp2200,
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.pat_char_rewind = pat_char_rewind_dp2200,
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.pat_next_str = pat_next_str_dp2200,
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.mask = 1
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};
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const struct target s_target_dp2200ii = {
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.id = "dp2200ii",
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.descr = "Datapoint 2200 Version II",
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.matcht = s_matchtab_dp2200,
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.matchf = match_dp2200,
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.genf = gen_dp2200,
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.pat_char_rewind = pat_char_rewind_dp2200,
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.pat_next_str = pat_next_str_dp2200,
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.mask = 2
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};
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