(uxncore) Added base core
This commit is contained in:
Devine Lu Linvega
parent
3d14583f74
commit
b0ca1dc05e
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@ -5,12 +5,14 @@ LIN=uxncli ${DIR}/uxnlin.rom
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EMU=uxncli
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ROM=bin/${ID}.rom
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all: ${ROM}
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all: ${ROM} bin/main
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lint:
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@ ${LIN} src/${ID}.tal
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run: all
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@ ${EMU} ${ROM}
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@ ./bin/main
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@ rm ./bin/main
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clean:
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@ rm -f ${ROM} ${ROM}.sym
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install: ${ROM}
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@ -20,6 +22,9 @@ uninstall:
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.PHONY: all clean lint run install uninstall
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bin/main: src/main.c
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@ cc src/main.c -o bin/main
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${ROM}: src/*
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@ mkdir -p bin
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@ ${ASM} src/${ID}.tal ${ROM}
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@ -0,0 +1,138 @@
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#include <stdio.h>
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typedef unsigned char Uint8;
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typedef signed char Sint8;
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typedef unsigned short Uint16;
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typedef struct {
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Uint8 dat[0x100], ptr;
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} Stack;
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typedef struct Uxn {
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Uint8 ram[0x10000], dev[0x100];
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Stack wst, rst;
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} Uxn;
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Uxn uxn;
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static void
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system_print(Stack *s)
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{
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Uint8 i;
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for(i = s->ptr - 7; i != (Uint8)(s->ptr + 1); i++)
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fprintf(stderr, "%02x%c", s->dat[i], i == 2 ? '|' : ' ');
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fprintf(stderr, "< \n");
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}
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void
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system_inspect(void)
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{
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fprintf(stderr, "WST "), system_print(&uxn.wst);
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fprintf(stderr, "RST "), system_print(&uxn.rst);
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}
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Uint8
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emu_dei(Uint8 addr)
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{
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return uxn.dev[addr];
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}
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void
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emu_deo(Uint8 addr, Uint8 value)
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{
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uxn.dev[addr] = value;
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switch(addr) {
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case 0x18: fputc(uxn.dev[0x18], stdout), fflush(stdout); return;
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case 0x19: fputc(uxn.dev[0x19], stderr), fflush(stderr); return;
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}
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}
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#define FLIP { s = ins & 0x40 ? &uxn.wst : &uxn.rst; }
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#define JUMP(x) { if(m2) pc = (x); else pc += (Sint8)(x); }
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#define POP1(o) { o = s->dat[--*sp]; }
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#define POP2(o) { o = s->dat[--*sp] | (s->dat[--*sp] << 0x8); }
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#define POPx(o) { if(m2) { POP2(o) } else POP1(o) }
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#define PUSH1(y) { s->dat[s->ptr++] = (y); }
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#define PUSH2(y) { tt = (y); s->dat[s->ptr++] = tt >> 0x8; s->dat[s->ptr++] = tt; }
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#define PUSHx(y) { if(m2) { PUSH2(y) } else PUSH1(y) }
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#define PEEK(o, x, r) { if(m2) { r = (x); o = uxn.ram[r++] << 8 | uxn.ram[r]; } else o = uxn.ram[(x)]; }
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#define POKE(x, y, r) { if(m2) { r = (x); uxn.ram[r++] = y >> 8; uxn.ram[r] = y; } else uxn.ram[(x)] = (y); }
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#define DEVR(o, p) { if(m2) { o = (emu_dei(p) << 8) | emu_dei(p + 1); } else o = emu_dei(p); }
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#define DEVW(p, y) { if(m2) { emu_deo(p, y >> 8); emu_deo(p + 1, y); } else emu_deo(p, y); }
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int
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uxn_eval(Uint16 pc)
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{
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if(!pc || uxn.dev[0x0f]) return 0;
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for(;;) {
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Uint16 tt, a, b, c;
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Uint8 t, kp, *sp, ins = uxn.ram[pc++];
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/* 2 */ Uint8 m2 = ins & 0x20;
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/* r */ Stack *s = ins & 0x40 ? &uxn.rst : &uxn.wst;
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/* k */ if(ins & 0x80) kp = s->ptr, sp = &kp; else sp = &s->ptr;
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switch(ins & 0x1f) {
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case 0x00:
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switch(ins) {
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case 0x00: /* BRK */ return 1;
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case 0x20: /* JCI */ POP1(b) if(!b) { pc += 2; break; } /* fall */
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case 0x40: /* JMI */ a = uxn.ram[pc++] << 8 | uxn.ram[pc++]; pc += a; break;
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case 0x60: /* JSI */ PUSH2(pc + 2) a = uxn.ram[pc++] << 8 | uxn.ram[pc++]; pc += a; break;
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case 0xa0: case 0xe0: /* LIT2 */ PUSH1(uxn.ram[pc++]) /* fall */
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case 0x80: case 0xc0: /* LIT */ PUSH1(uxn.ram[pc++]) break;
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} break;
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case 0x01: /* INC */ POPx(a) PUSHx(a + 1) break;
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case 0x02: /* POP */ POPx(a) break;
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case 0x03: /* NIP */ POPx(a) POPx(b) PUSHx(a) break;
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case 0x04: /* SWP */ POPx(a) POPx(b) PUSHx(a) PUSHx(b) break;
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case 0x05: /* ROT */ POPx(a) POPx(b) POPx(c) PUSHx(b) PUSHx(a) PUSHx(c) break;
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case 0x06: /* DUP */ POPx(a) PUSHx(a) PUSHx(a) break;
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case 0x07: /* OVR */ POPx(a) POPx(b) PUSHx(b) PUSHx(a) PUSHx(b) break;
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case 0x08: /* EQU */ POPx(a) POPx(b) PUSH1(b == a) break;
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case 0x09: /* NEQ */ POPx(a) POPx(b) PUSH1(b != a) break;
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case 0x0a: /* GTH */ POPx(a) POPx(b) PUSH1(b > a) break;
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case 0x0b: /* LTH */ POPx(a) POPx(b) PUSH1(b < a) break;
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case 0x0c: /* JMP */ POPx(a) JUMP(a) break;
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case 0x0d: /* JCN */ POPx(a) POP1(b) if(b) JUMP(a) break;
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case 0x0e: /* JSR */ POPx(a) FLIP PUSH2(pc) JUMP(a) break;
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case 0x0f: /* STH */ POPx(a) FLIP PUSHx(a) break;
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case 0x10: /* LDZ */ POP1(a) PEEK(b, a, t) PUSHx(b) break;
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case 0x11: /* STZ */ POP1(a) POPx(b) POKE(a, b, t) break;
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case 0x12: /* LDR */ POP1(a) PEEK(b, pc + (Sint8)a, tt) PUSHx(b) break;
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case 0x13: /* STR */ POP1(a) POPx(b) POKE(pc + (Sint8)a, b, tt) break;
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case 0x14: /* LDA */ POP2(a) PEEK(b, a, tt) PUSHx(b) break;
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case 0x15: /* STA */ POP2(a) POPx(b) POKE(a, b, tt) break;
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case 0x16: /* DEI */ POP1(a) DEVR(b, a) PUSHx(b) break;
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case 0x17: /* DEO */ POP1(a) POPx(b) DEVW(a, b) break;
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case 0x18: /* ADD */ POPx(a) POPx(b) PUSHx(b + a) break;
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case 0x19: /* SUB */ POPx(a) POPx(b) PUSHx(b - a) break;
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case 0x1a: /* MUL */ POPx(a) POPx(b) PUSHx(b * a) break;
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case 0x1b: /* DIV */ POPx(a) POPx(b) PUSHx(a ? b / a : 0) break;
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case 0x1c: /* AND */ POPx(a) POPx(b) PUSHx(b & a) break;
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case 0x1d: /* ORA */ POPx(a) POPx(b) PUSHx(b | a) break;
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case 0x1e: /* EOR */ POPx(a) POPx(b) PUSHx(b ^ a) break;
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case 0x1f: /* SFT */ POP1(a) POPx(b) PUSHx(b >> (a & 0xf) << (a >> 4)) break;
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}
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system_inspect();
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}
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}
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void
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console_input(char c, int type)
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{
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uxn.dev[0x12] = c, uxn.dev[0x17] = type;
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uxn_eval(uxn.dev[0x10] << 8 | uxn.dev[0x11]);
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}
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int
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main(int argc, char **argv)
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{
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uxn.ram[0x100] = 0xa0;
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uxn.ram[0x101] = 0x12;
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uxn.ram[0x102] = 0x34;
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if(uxn_eval(0x0100) && (uxn.dev[0x10] << 8 | uxn.dev[0x11])) {
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while(!uxn.dev[0x0f]) {
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}
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}
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return uxn.dev[0x0f] & 0x7f;
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}
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@ -28,7 +28,7 @@
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[ LIT2 "/ 18 ] DEO
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#2018 DEO
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( | body )
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#00 OVR #1f AND DUP ADD ;opc-lut ADD2 LDA2 JSR2
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#00 OVR #1f AND DUP ADD ;opc-lut ADD2 LDA2 JSR2 #2018 DEO
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( ) ;dict/break <pstr>
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#0a18 DEO
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JMP2r
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@ -80,8 +80,8 @@
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@|body )
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@opc-lut [
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=op-brk =op-inc =op-pop =op-brk
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=op-brk =op-brk =op-brk =op-brk
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=op-brk =op-inc =op-pop =op-nip
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=op-swp =op-rot =op-dup =op-ovr
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=op-brk =op-brk =op-brk =op-brk
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=op-brk =op-brk =op-brk =op-brk
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=op-brk =op-brk =op-brk =op-brk
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@ -91,7 +91,6 @@
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@op-brk ( byte -- )
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;dict/return <pstr>
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#2018 DEO
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POP JMP2r
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@op-inc ( byte -- )
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@ -102,16 +101,71 @@
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[ LIT2 "] 18 ] DEO
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<inc>
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[ LIT2 "; 18 ] DEO
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#2018 DEO
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POP JMP2r
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@op-pop ( byte -- )
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<ptr>
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<dec>
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[ LIT2 "; 18 ] DEO
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#2018 DEO
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POP JMP2r
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@op-nip ( byte -- )
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<dat>
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[ LIT2 "[ 18 ] DEO
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<ptr>
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<dec>
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[ LIT2 "] 18 ] DEO
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<equ>
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<dat>
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[ LIT2 "[ 18 ] DEO
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<ptr>
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[ LIT2 "] 18 ] DEO
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[ LIT2 "; 18 ] DEO
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POP JMP2r
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@op-swp ( byte -- )
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( | a )
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<dat>
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[ LIT2 "[ 18 ] DEO
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<ptr>
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#01 <minus>
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[ LIT2 "] 18 ] DEO
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<equ>
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( | b )
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<dat>
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[ LIT2 "[ 18 ] DEO
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<ptr>
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#02 <minus>
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[ LIT2 "] 18 ] DEO
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[ LIT2 "; 18 ] DEO
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POP JMP2r
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@op-rot ( byte -- )
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POP JMP2r
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@op-dup ( byte -- )
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<dat>
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[ LIT2 "[ 18 ] DEO
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<ptr>
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[ LIT2 "] 18 ] DEO
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<equ>
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<dat>
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[ LIT2 "[ 18 ] DEO
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<ptr>
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[ LIT2 "] 18 ] DEO
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[ LIT2 "; 18 ] DEO
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#2018 DEO
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<ptr>
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<inc>
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[ LIT2 "; 18 ] DEO
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POP JMP2r
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@op-ovr ( byte -- )
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POP JMP2r
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(
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@|framework )
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@<inc> ( -- )
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[ LIT2 "+ 18 ] DEOk DEO
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JMP2r
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@ -149,13 +203,13 @@
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[ LIT "0 ] ADD #18 DEO
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JMP2r
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@<dat> ( -- )
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;dict/uxn-wst-dat <pstr>
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JMP2r
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@<dat> ( byte -- byte )
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DUP #40 AND ?{ ;dict/uxn-wst-dat !<pstr> }
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;dict/uxn-rst-dat !<pstr>
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@<ptr> ( -- )
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;dict/uxn-wst-ptr <pstr>
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JMP2r
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@<ptr> ( byte -- byte )
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DUP #40 AND ?{ ;dict/uxn-wst-ptr !<pstr> }
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;dict/uxn-rst-ptr !<pstr>
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(
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@|utils )
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