diff options
| author | Ben Bridle <ben@derelict.engineering> | 2025-09-19 13:17:14 +1200 |
|---|---|---|
| committer | Ben Bridle <ben@derelict.engineering> | 2025-09-19 13:32:32 +1200 |
| commit | bb1aa5958d1b67707dcf0f6b08bfaf0b408bd46e (patch) | |
| tree | b26d07ed58aaf7a5230fc3e28c103d616abfa9b8 /arm9/source/core.c | |
| parent | 9612c307f00c4313d73fe0c3a86c05c8d8cd514e (diff) | |
| download | bedrock-nds-bb1aa5958d1b67707dcf0f6b08bfaf0b408bd46e.zip | |
Massive rewrite
This commit rewrites the emulator halfway from scratch to make it
easier to change and maintain in the future. The emulator core was
rewritten to adhere to the released Bedrock specification (earlier
versions implemented an older prototype specification, which is no
longer relevant).
This commit also adds proper support for running multiple concurrent
Bedrock instances. This was previously supported in a limited manner
for the on-screen keyboard, but now works for any regular program as
well, with switching being performed by pressing the L or R bumper
buttons. This is disabled by default, as programs will still need to
be baked into the emulator and hand-loaded.
Diffstat (limited to 'arm9/source/core.c')
| -rw-r--r-- | arm9/source/core.c | 851 |
1 files changed, 371 insertions, 480 deletions
diff --git a/arm9/source/core.c b/arm9/source/core.c index 26c7bb0..21587b4 100644 --- a/arm9/source/core.c +++ b/arm9/source/core.c @@ -1,528 +1,419 @@ -#include <nds.h> -#include "bang.h" #include "core.h" -#include "debug.h" -void reset_br(Bedrock *br) { - // TODO +// Reset a Bedrock instance. +void br_reset(Bedrock *br) { + br->ip = 0; + br->wst.p = 0; + br->rst.p = 0; + dev_reset(&br->dev); } -// Load a program into an instance. -void start_br(Bedrock *br, u8 program[], int size) { - reset_br(br); - memcpy(&br->prg.mem, program, size); - br->alive = TRUE; - br->awake = TRUE; - // br->scr.nds = &scr_main; +// Load a new program into a Bedrock instance. +void br_load(Bedrock *br, u8 bytecode[], int length) { + br_reset(br); + memcpy(&br->mem, bytecode, MIN(length, 65536)); + br->alive = true; + br->awake = true; } -void run_br(Bedrock *br) { - if (br->awake) { - switch (evaluate(br, 65535)) { - case SIG_HALT: br->alive = FALSE; black_screen(br->scr.nds); br = NULL; return; - case SIG_SLEEP: br->awake = FALSE; return; - case SIG_DB1: debug_stacks(br); return; - case SIG_DB4: debug_assert(br); return; - default: return; - } - } -} - -void rouse_br(Bedrock *br) { - if (TEST(br->sys.sleep, 0x8000)) { // SYSTEM - br->awake = TRUE; - br->sys.wake = 0x0; - return; - } - if (TEST(br->sys.sleep, 0x0400)) { // SCREEN - if (br->scr.wake) { - br->scr.wake = FALSE; - br->awake = TRUE; - br->sys.wake = 0x5; +// Attempt to wake a Bedrock instance. +// TODO: Redo this. +void br_rouse(Bedrock *br) { + if (TEST(br->dev.system.sleep, 0x0400)) { // SCREEN + if (br->dev.screen.wake) { + br->dev.screen.wake = false; + br->dev.system.wake = 0x5; + br->awake = true; return; } } - if (TEST(br->sys.sleep, 0x0800)) { // INPUT - if (br->inp.wake) { - br->inp.wake = FALSE; - br->awake = TRUE; - br->sys.wake = 0x4; + if (TEST(br->dev.system.sleep, 0x0800)) { // INPUT + if (br->dev.input.wake) { + br->dev.input.wake = false; + br->dev.system.wake = 0x4; + br->awake = true; return; } } - if (TEST(br->sys.sleep, 0x1000)) { // CLOCK - if (check_timers(&br->clk)) { - br->awake = TRUE; - br->sys.wake = 0x3; + if (TEST(br->dev.system.sleep, 0x1000)) { // CLOCK + if (clock_check_timers(&br->dev.clock)) { + br->dev.system.wake = 0x3; + br->awake = true; return; } } -} - -u8 dev_read(Bedrock *br, u8 port) { - switch(port) { -// SYSTEM DEVICE - // TODO: name and author - case 0x00: return rb_read(&br->sys.name); - case 0x01: return rb_read(&br->sys.authors); - case 0x02: return 0x00; // program memory size - case 0x03: return 0x00; // program memory size - case 0x04: return 0x00; // working stack size - case 0x05: return 0x00; // return stack size - case 0x06: return devices_high(); - case 0x07: return devices_low(); - case 0x0A: return br->sys.wake; -// MEMORY DEVICE - case 0x10: return mem_read1(&br->mem); - case 0x11: return mem_read1(&br->mem); - case 0x12: return HIGH(br->mem.offset1); - case 0x13: return LOW(br->mem.offset1); - case 0x14: return br->mem.page1; - case 0x15: return br->mem.byte1; - case 0x16: return HIGH(br->mem.count); - case 0x17: return LOW(br->mem.count); - case 0x18: return mem_read2(&br->mem); - case 0x19: return mem_read2(&br->mem); - case 0x1A: return HIGH(br->mem.offset2); - case 0x1B: return LOW(br->mem.offset2); - case 0x1C: return br->mem.page2; - case 0x1D: return br->mem.byte2; -// MATH DEVICE - case 0x20: return HIGH(br->math.op1); - case 0x21: return LOW(br->math.op1); - case 0x22: return HIGH(br->math.op2); - case 0x23: return LOW(br->math.op2); - case 0x24: return HIGH(get_sqrt(&br->math)); - case 0x25: return LOW(get_sqrt(&br->math)); - case 0x26: return HIGH(get_atan(&br->math)); - case 0x27: return LOW(get_atan(&br->math)); - case 0x28: return H_HIGH(get_prod(&br->math)); - case 0x29: return H_LOW(get_prod(&br->math)); - case 0x2A: return L_HIGH(get_prod(&br->math)); - case 0x2B: return L_LOW(get_prod(&br->math)); - case 0x2C: return HIGH(get_quot(&br->math)); - case 0x2D: return LOW(get_quot(&br->math)); - case 0x2E: return HIGH( get_rem(&br->math)); - case 0x2F: return LOW( get_rem(&br->math)); -// CLOCK DEVICE - case 0x30: return YEAR(get_datetime()); - case 0x31: return MONTH(get_datetime()); - case 0x32: return DAY(get_datetime()); - case 0x33: return HOUR(get_datetime()); - case 0x34: return MINUTE(get_datetime()); - case 0x35: return SECOND(get_datetime()); - case 0x36: return HIGH(get_uptime()-br->clk.start); - case 0x37: return LOW(get_uptime()-br->clk.start); - case 0x38: return get_timer_high(&br->clk.t1); - case 0x39: return get_timer_low( &br->clk.t1); - case 0x3A: return get_timer_high(&br->clk.t2); - case 0x3B: return get_timer_low( &br->clk.t2); - case 0x3C: return get_timer_high(&br->clk.t3); - case 0x3D: return get_timer_low( &br->clk.t3); - case 0x3E: return get_timer_high(&br->clk.t4); - case 0x3F: return get_timer_low( &br->clk.t4); -// INPUT DEVICE - case 0x40: return BOOL(br->inp.pointer); - case 0x41: return br->inp.pointer << 7; - case 0x44: return HIGH(br->inp.x); - case 0x45: return LOW(br->inp.x); - case 0x46: return HIGH(br->inp.y); - case 0x47: return LOW(br->inp.y); - case 0x48: return BOOL(is_keyboard_open()); - case 0x49: return cb_read_byte(&br->inp.keybuffer); - case 0x4A: return br->inp.navigation; - case 0x4C: return br->inp.gamepad; -// SCREEN DEVICE - case 0x50: return HIGH(PIXELS_WIDTH); - case 0x51: return LOW(PIXELS_WIDTH); - case 0x52: return HIGH(PIXELS_HEIGHT); - case 0x53: return LOW(PIXELS_HEIGHT); - case 0x54: return HIGH(br->scr.x); - case 0x55: return LOW(br->scr.x); - case 0x56: return HIGH(br->scr.y); - case 0x57: return LOW(br->scr.y); -// FILE DEVICE - case 0xA0: return BOOL(br->fs.open); - case 0xA1: return BOOL(br->fs.success); - case 0xA2: return pb_read(&br->fs.path); - case 0xA3: return BOOL(br->fs.is_dir); - case 0xA4: return fs_read_byte(&br->fs); - case 0xA5: return fs_read_byte(&br->fs); - case 0xA6: return pb_read(&br->fs.child_path); - case 0xA7: return BOOL(br->fs.child_is_dir); - case 0xA8: return H_HIGH(br->fs.pointer); - case 0xA9: return H_LOW(br->fs.pointer); - case 0xAA: return L_HIGH(br->fs.pointer); - case 0xAB: return L_LOW(br->fs.pointer); - case 0xAC: return H_HIGH(br->fs.length); - case 0xAD: return H_LOW(br->fs.length); - case 0xAE: return L_HIGH(br->fs.length); - case 0xAF: return L_LOW(br->fs.length); - - default: return 0; - } -} - -Signal dev_write(Bedrock *br, u8 port, u8 v) { - switch(port) { -// SYSTEM DEVICE - case 0x00: rb_reset(&br->sys.name); return 0; - case 0x01: rb_reset(&br->sys.authors); return 0; - case 0x08: SET_HIGH(br->sys.sleep,v); return 0; - case 0x09: SET_LOW(br->sys.sleep,v); return SIG_SLEEP; -// MEMORY DEVICE - case 0x10: mem_write1(&br->mem,v); return 0; - case 0x11: mem_write1(&br->mem,v); return 0; - case 0x12: SET_HIGH(br->mem.offset1,v); mem_load_cache1(&br->mem); return 0; - case 0x13: SET_LOW(br->mem.offset1,v); mem_load_cache1(&br->mem); return 0; - case 0x14: br->mem.page1=v; mem_get_page1(&br->mem); return 0; - case 0x15: br->mem.byte1=v; return 0; - case 0x16: SET_HIGH(br->mem.count_write,v); return 0; - case 0x17: SET_LOW(br->mem.count_write,v); mem_allocate(&br->mem); return 0; - case 0x18: mem_write2(&br->mem,v); return 0; - case 0x19: mem_write2(&br->mem,v); return 0; - case 0x1A: SET_HIGH(br->mem.offset2,v); mem_load_cache2(&br->mem); return 0; - case 0x1B: SET_LOW(br->mem.offset2,v); mem_load_cache2(&br->mem); return 0; - case 0x1C: br->mem.page2=v; mem_get_page2(&br->mem); return 0; - case 0x1D: br->mem.byte2=v; return 0; - case 0x1E: SET_HIGH(br->mem.copy_write,v); return 0; - case 0x1F: SET_LOW(br->mem.copy_write,v); mem_do_copy(&br->mem); return 0; -// MATH DEVICE - case 0x20: set_op1_high(&br->math,v); return 0; - case 0x21: set_op1_low( &br->math,v); return 0; - case 0x22: set_op2_high(&br->math,v); return 0; - case 0x23: set_op2_low( &br->math,v); return 0; -// CLOCK DEVICE - // TODO: Set time and date - case 0x38: set_timer_high(&br->clk.t1,v); return 0; - case 0x39: set_timer_low( &br->clk.t1,v); return 0; - case 0x3A: set_timer_high(&br->clk.t2,v); return 0; - case 0x3B: set_timer_low( &br->clk.t2,v); return 0; - case 0x3C: set_timer_high(&br->clk.t3,v); return 0; - case 0x3D: set_timer_low( &br->clk.t3,v); return 0; - case 0x3E: set_timer_high(&br->clk.t4,v); return 0; - case 0x3F: set_timer_low( &br->clk.t4,v); return 0; -// INPUT DEVICE - case 0x48: v ? open_keyboard() : close_keyboard(); return 0; - case 0x49: cb_clear(&br->inp.keybuffer); return 0; -// SCREEN DEVICE - case 0x54: SET_HIGH(br->scr.x,v); return 0; - case 0x55: SET_LOW( br->scr.x,v); return 0; - case 0x56: SET_HIGH(br->scr.y,v); return 0; - case 0x57: SET_LOW( br->scr.y,v); return 0; - case 0x58: set_palette_high(&br->scr,v); return 0; - case 0x59: set_palette_low( &br->scr,v); return 0; - case 0x5A: SET_HIGH(br->scr.colours,v); return 0; - case 0x5B: SET_LOW( br->scr.colours,v); return 0; - case 0x5C: push_sprite(&br->scr.sprite,v); return 0; - case 0x5D: push_sprite(&br->scr.sprite,v); return 0; - case 0x5E: draw_dispatch(&br->scr,v); return 0; - case 0x5F: move_cursor(&br->scr,v); return 0; -// LOCAL DEVICE - case 0x86: std_write(v); return 0; - case 0x87: std_write(v); return 0; -// FILE DEVICE - case 0xA0: fs_push_entry(&br->fs,v); return 0; - case 0xA1: fs_push_action(&br->fs,v); return 0; - case 0xA2: pb_reset(&br->fs.path,v); return 0; - case 0xA3: fs_ascend(&br->fs); return 0; - case 0xA4: fs_write_byte(&br->fs,v); return 0; - case 0xA5: fs_write_byte(&br->fs,v); return 0; - case 0xA6: pb_reset(&br->fs.child_path,v); return 0; - case 0xA7: fs_descend(&br->fs); return 0; - case 0xA8: SET_H_HIGH(br->fs.pointer_write,v); return 0; - case 0xA9: SET_H_LOW(br->fs.pointer_write,v); return 0; - case 0xAA: SET_L_HIGH(br->fs.pointer_write,v); return 0; - case 0xAB: SET_L_LOW(br->fs.pointer_write,v); fs_seek(&br->fs); return 0; - case 0xAC: SET_H_HIGH(br->fs.length_write,v); return 0; - case 0xAD: SET_H_LOW(br->fs.length_write,v); return 0; - case 0xAE: SET_L_HIGH(br->fs.length_write,v); return 0; - case 0xAF: SET_L_LOW(br->fs.length_write,v); fs_resize(&br->fs); return 0; - - default: return SIG_NONE; + // System device is always chosen last. + if (TEST(br->dev.system.sleep, 0x8000)) { // SYSTEM + br->dev.system.wake = 0x0; + br->awake = true; + return; } } -Signal dev_write_16(Bedrock *br, u8 port, u8 high, u8 low) { - Signal s1 = dev_write(br, port, high); - Signal s2 = dev_write(br, port+1, low); - if (s1) { return s1; } else { return s2; } +// Write a double to a device bus. +Signal dev_write_double(DeviceBus *d, u8 port, u8 h, u8 l) { + Signal s1 = dev_write(d, port, h); + Signal s2 = dev_write(d, port+1, l); + return s1 ? s1 : s2; } -Signal evaluate(Bedrock *br, u16 count) { +// Evaluate a Bedrock instance until a signal is emitted. +Signal br_eval(Bedrock *br, int count) { #define SIGNAL(s) if (s) { return s; } else { continue; }; - register u8 a, b, c, d, e, f; - register u16 x, y; + // Helpers. + #define WST br->wst + #define RST br->rst + #define MEM br->mem + #define IP br->ip + #define WSTV(i) WST.mem[WST.p+(i)] + #define RSTV(i) RST.mem[RST.p+(i)] + // Push values to a stack. + #define WPSH1(x) WST.mem[WST.p++] = (x); + #define RPSH1(x) RST.mem[RST.p++] = (x); + #define WPSH2(x,y) WPSH1(x); WPSH1(y); + #define RPSH2(x,y) RPSH1(x); RPSH1(y); + #define WPSHD(d) WPSH1(HIGH((d))); WPSH1(LOW((d))); + #define RPSHD(d) RPSH1(HIGH((d))); RPSH1(LOW((d))); + #define WPSHB(b) WPSH1(BOOL(b)); + #define RPSHB(b) RPSH1(BOOL(b)); + // Pop values from a stack. + #define WPOP1(x) (x) = WST.mem[--WST.p]; + #define RPOP1(x) (x) = RST.mem[--RST.p]; + #define WPOP2(x,y) WPOP1(y); WPOP1(x); + #define RPOP2(x,y) RPOP1(y); RPOP1(x); + #define WPOPD(d) d = DOUBLE(WSTV(-2), WSTV(-1)); WST.p-=2; + #define RPOPD(d) d = DOUBLE(RSTV(-2), RSTV(-1)); RST.p-=2; + // Pop values without affecting the stack pointer. + #define WGET1(x) x = WSTV(-1); + #define RGET1(x) x = RSTV(-1); + #define WGET2(x,y) x = WSTV(-2); y = WSTV(-1); + #define RGET2(x,y) x = RSTV(-2); y = RSTV(-1); + #define WGETD(x) x = DOUBLE(WSTV(-2), WSTV(-1)); + #define RGETD(x) x = DOUBLE(RSTV(-2), RSTV(-1)); + // Read the next value in memory. + #define MPOP1(x) (x) = MEM[IP++]; + #define MPOP2(x,y) MPOP1(x); MPOP1(y); + #define MPOPD(d) d = DOUBLE(MEM[IP], MEM[IP+1]); IP+=2; + // Read from a device port. + #define DGET1(p) dev_read(&br->dev, p) + #define DSET2(p,h,l) dev_write_double(&br->dev, p, h, l) + + register u16 u, v, w, x, y, z; register Signal sig; - for (u16 i=0; i < count; i++) { - switch (MLIT) { + while (count--) { + MPOP1(x); + switch (x) { /* HLT */ case 0x00: return SIG_HALT; -/* JMP */ case 0x01: WPOP2(a,b); PC=DOUBLE(a,b); continue; -/* JCN */ case 0x02: WPOP2(b,c); WPOP1(a); if(a) PC=DOUBLE(b,c); continue; -/* JCK */ case 0x03: WPOP2(b,c); WGET1(a); if(a) PC=DOUBLE(b,c); continue; -/* LDA */ case 0x04: WPOP2(a,b); x=DOUBLE(a,b); WPSH1(MEM[x]); continue; -/* STA */ case 0x05: WPOPD(x); WPOP1(a); MEM[x]=a; continue; -/* LDD */ case 0x06: WPOP1(a); WPSH1(dev_read(br,a)); continue; -/* STD */ case 0x07: WPOP1(b); WPOP1(a); sig=dev_write(br,b,a); SIGNAL(sig); -/* PSH */ case 0x08: RPOP1(a); WPSH1(a); continue; -/* POP */ case 0x09: WST.p-=1; continue; -/* CPY */ case 0x0A: RGET1(a); WPSH1(a); continue; -/* SPL */ case 0x0B: WPOP1(a); WPSH2(LEFT(a),RIGHT(a)); continue; -/* DUP */ case 0x0C: WGET1(a); WPSH1(a); continue; -/* OVR */ case 0x0D: WPOP1(b); WGET1(a); WPSH1(b); WPSH1(a); continue; -/* SWP */ case 0x0E: WPOP1(b); WPOP1(a); WPSH1(b); WPSH1(a); continue; -/* ROT */ case 0x0F: WPOP1(c); WPOP1(b); WPOP1(a); WPSH1(b); WPSH1(c); WPSH1(a); continue; -/* ADD */ case 0x10: WPOP1(b); WSTV(-1)+=b; continue; -/* SUB */ case 0x11: WPOP1(b); WSTV(-1)-=b; continue; +/* PSH */ case 0x01: RPOP1(x); WPSH1(x); continue; +/* POP */ case 0x02: WST.p-=1; continue; +/* CPY */ case 0x03: RGET1(x); WPSH1(x); continue; +/* DUP */ case 0x04: WGET1(x); WPSH1(x); continue; +/* OVR */ case 0x05: WPOP1(y); WGET1(x); WPSH1(y); WPSH1(x); continue; +/* SWP */ case 0x06: WPOP1(y); WPOP1(x); WPSH1(y); WPSH1(x); continue; +/* ROT */ case 0x07: WPOP1(z); WPOP1(y); WPOP1(x); WPSH1(y); WPSH1(z); WPSH1(x); continue; +/* JMP */ case 0x08: WPOPD(x); IP=x; continue; +/* JMS */ case 0x09: WPOPD(x); RPSHD(IP); IP=x; continue; +/* JCN */ case 0x0A: WPOPD(y); WPOP1(x); if(x) IP=y; continue; +/* JCS */ case 0x0B: WPOPD(y); WPOP1(x); if(x) { RPSHD(IP); IP=y; } continue; +/* LDA */ case 0x0C: WPOPD(x); WPSH1(MEM[x]); continue; +/* STA */ case 0x0D: WPOPD(y); WPOP1(x); MEM[y]=x; continue; +/* LDD */ case 0x0E: WPOP1(x); WPSH1(dev_read(&br->dev,x)); continue; +/* STD */ case 0x0F: WPOP1(y); WPOP1(x); sig=dev_write(&br->dev,y,x); SIGNAL(sig); +/* ADD */ case 0x10: WPOP1(x); WSTV(-1)+=x; continue; +/* SUB */ case 0x11: WPOP1(x); WSTV(-1)-=x; continue; /* INC */ case 0x12: WSTV(-1)+=1; continue; /* DEC */ case 0x13: WSTV(-1)-=1; continue; -/* LTH */ case 0x14: WPOP1(b); WPOP1(a); WPSH1(BOOL(a<b)); continue; -/* GTH */ case 0x15: WPOP1(b); WPOP1(a); WPSH1(BOOL(a>b)); continue; -/* EQU */ case 0x16: WPOP1(b); WPOP1(a); WPSH1(BOOL(a==b)); continue; -/* NQK */ case 0x17: b=WSTV(-1); a=WSTV(-2); WPSH1(BOOL(a!=b)); continue; -/* IOR */ case 0x18: WPOP1(b); WSTV(-1)|=b; continue; -/* XOR */ case 0x19: WPOP1(b); WSTV(-1)^=b; continue; -/* AND */ case 0x1A: WPOP1(b); WSTV(-1)&=b; continue; -/* NOT */ case 0x1B: WSTV(-1)=~WSTV(-1); continue; -/* SHF */ case 0x1C: WPOP1(b); WPOP1(a); x=SHF(a,b); WPSH1(x); continue; -/* SHC */ case 0x1D: WPOP1(b); WPOP1(a); x=shc(a,b); WPSH1(x); continue; -/* TAL */ case 0x1E: WSTV(-1)=TAL(WSTV(-1)); continue; -/* REV */ case 0x1F: WSTV(-1)=rev(WSTV(-1)); continue; +/* LTH */ case 0x14: WPOP1(y); WPOP1(x); WPSHB(x<y); continue; +/* GTH */ case 0x15: WPOP1(y); WPOP1(x); WPSHB(x>y); continue; +/* EQU */ case 0x16: WPOP1(y); WPOP1(x); WPSHB(x==y); continue; +/* NQK */ case 0x17: y=WSTV(-1); x=WSTV(-2); WPSHB(x!=y); continue; +/* SHL */ case 0x18: WPOP1(y); WPOP1(x); WPSH1(x<<y); continue; +/* SHR */ case 0x19: WPOP1(y); WPOP1(x); WPSH1(x>>y); continue; +/* ROL */ case 0x1A: WPOP1(y); WPOP1(x); WPSH1(ROL1(x,y)); continue; +/* ROR */ case 0x1B: WPOP1(y); WPOP1(x); WPSH1(ROR1(x,y)); continue; +/* IOR */ case 0x1C: WPOP1(x); WSTV(-1)|=x; continue; +/* XOR */ case 0x1D: WPOP1(x); WSTV(-1)^=x; continue; +/* AND */ case 0x1E: WPOP1(x); WSTV(-1)&=x; continue; +/* NOT */ case 0x1F: WSTV(-1)=~WSTV(-1); continue; /* NOP */ case 0x20: continue; -/* JMS */ case 0x21: WPOP2(a,b); RPSHD(PC); PC=DOUBLE(a,b); continue; -/* JCS */ case 0x22: WPOP2(b,c); WPOP1(a); if(a) {RPSHD(PC); PC=DOUBLE(b,c);} continue; -/* JCK* */ case 0x23: WPOP2(c,d); WGETD(x); if(x) {PC=DOUBLE(c,d);} continue; -/* LDA* */ case 0x24: WPOP2(a,b); x=DOUBLE(a,b); WPSH1(MEM[x]); WPSH1(MEM[x+1]); continue; -/* STA* */ case 0x25: WPOPD(x); WPOP2(a,b); MEM[x]=a; MEM[x+1]=b; continue; -/* LDD* */ case 0x26: WPOP1(a); WPSH1(dev_read(br,a)); WPSH1(dev_read(br,a+1)); continue; -/* STD* */ case 0x27: WPOP1(c); WPOP2(a,b); sig=dev_write_16(br,c,a,b); SIGNAL(sig); -/* PSH* */ case 0x28: RPOP2(a,b); WPSH2(a,b); continue; -/* POP* */ case 0x29: WST.p-=2; continue; -/* CPY* */ case 0x2A: RGET2(a,b); WPSH2(a,b); continue; -/* SPL* */ case 0x2B: WPOP2(a,b); WPSH2(LEFT(a),RIGHT(a)); WPSH2(LEFT(b),RIGHT(b)); continue; -/* DUP* */ case 0x2C: WGET2(a,b); WPSH2(a,b); continue; -/* OVR* */ case 0x2D: WPOP2(c,d); WGET2(a,b); WPSH2(c,d); WPSH2(a,b); continue; -/* SWP* */ case 0x2E: WPOP2(c,d); WPOP2(a,b); WPSH2(c,d); WPSH2(a,b); continue; -/* ROT* */ case 0x2F: WPOP2(e,f); WPOP2(c,d); WPOP2(a,b); WPSH2(c,d); WPSH2(e,f); WPSH2(a,b); continue; -/* ADD* */ case 0x30: WPOPD(y); WPOPD(x); WPSHD(x+y); continue; -/* SUB* */ case 0x31: WPOPD(y); WPOPD(x); WPSHD(x-y); continue; -/* INC* */ case 0x32: WPOPD(x); WPSHD(x+1); continue; -/* DEC* */ case 0x33: WPOPD(x); WPSHD(x-1); continue; -/* LTH* */ case 0x34: WPOPD(y); WPOPD(x); WPSH1(BOOL(x<y)); continue; -/* GTH* */ case 0x35: WPOPD(y); WPOPD(x); WPSH1(BOOL(x>y)); continue; -/* EQU* */ case 0x36: WPOP2(c,d); WPOP2(a,b); WPSH1(BOOL(a==c && b==d)); continue; -/* NQK* */ case 0x37: d=WSTV(-1); c=WSTV(-2); b=WSTV(-3); a=WSTV(-4); WPSH1(BOOL(a!=c || b!=d)); continue; -/* IOR* */ case 0x38: WPOP2(c,d); WSTV(-1)|=d; WSTV(-2)|=c; continue; -/* XOR* */ case 0x39: WPOP2(c,d); WSTV(-1)^=d; WSTV(-2)^=c; continue; -/* AND* */ case 0x3A: WPOP2(c,d); WSTV(-1)&=d; WSTV(-2)&=c; continue; -/* NOT* */ case 0x3B: WSTV(-1)=~WSTV(-1); WSTV(-2)=~WSTV(-2); continue; -/* SHF* */ case 0x3C: WPOP1(c); WPOPD(x); x=SHF(x,c); WPSHD(x); continue; -/* SHC* */ case 0x3D: WPOP1(c); WPOPD(x); x=shcd(x,c); WPSHD(x); continue; -/* TAL* */ case 0x3E: WPOP2(a,b); WPSH1(TAL(a)+TAL(b)); continue; -/* REV* */ case 0x3F: WPOP2(a,b); WPSH1(rev(b)); WPSH1(rev(a)); continue; +/* PSH: */ case 0x21: MPOP1(x); WPSH1(x); continue; +/* POP: */ case 0x22: IP+=1; continue; +/* CPY: */ case 0x23: MPOP1(x); RPSH1(x); WPSH1(x); continue; +/* DUP: */ case 0x24: MPOP1(x); WPSH1(x); WPSH1(x); continue; +/* OVR: */ case 0x25: MPOP1(y); WGET1(x); WPSH1(y); WPSH1(x); continue; +/* SWP: */ case 0x26: MPOP1(y); WPOP1(x); WPSH1(y); WPSH1(x); continue; +/* ROT: */ case 0x27: MPOP1(z); WPOP1(y); WPOP1(x); WPSH1(y); WPSH1(z); WPSH1(x); continue; +/* JMP: */ case 0x28: MPOPD(x); IP=x; continue; +/* JMS: */ case 0x29: MPOPD(x); RPSHD(IP); IP=x; continue; +/* JCN: */ case 0x2A: MPOPD(y); WPOP1(x); if(x) IP=y; continue; +/* JCS: */ case 0x2B: MPOPD(y); WPOP1(x); if(x) { RPSHD(IP); IP=y; } continue; +/* LDA: */ case 0x2C: MPOPD(x); WPSH1(MEM[x]); continue; +/* STA: */ case 0x2D: MPOPD(y); WPOP1(x); MEM[y]=x; continue; +/* LDD: */ case 0x2E: MPOP1(x); WPSH1(dev_read(&br->dev,x)); continue; +/* STD: */ case 0x2F: MPOP1(y); WPOP1(x); sig=dev_write(&br->dev,y,x); SIGNAL(sig); +/* ADD: */ case 0x30: MPOP1(x); WSTV(-1)+=x; continue; +/* SUB: */ case 0x31: MPOP1(x); WSTV(-1)-=x; continue; +/* INC: */ case 0x32: MPOP1(x); WPSH1(x+1); continue; +/* DEC: */ case 0x33: MPOP1(x); WPSH1(x-1); continue; +/* LTH: */ case 0x34: MPOP1(y); WPOP1(x); WPSHB(x<y); continue; +/* GTH: */ case 0x35: MPOP1(y); WPOP1(x); WPSHB(x>y); continue; +/* EQU: */ case 0x36: MPOP1(y); WPOP1(x); WPSHB(x==y); continue; +/* NQK: */ case 0x37: MPOP1(y); WGET1(x); WPSH1(y); WPSHB(x!=y); continue; +/* SHL: */ case 0x38: MPOP1(y); WPOP1(x); WPSH1(x<<y); continue; +/* SHR: */ case 0x39: MPOP1(y); WPOP1(x); WPSH1(x>>y); continue; +/* ROL: */ case 0x3A: MPOP1(y); WPOP1(x); WPSH1(ROL1(x,y)); continue; +/* ROR: */ case 0x3B: MPOP1(y); WPOP1(x); WPSH1(ROR1(x,y)); continue; +/* IOR: */ case 0x3C: MPOP1(x); WSTV(-1)|=x; continue; +/* XOR: */ case 0x3D: MPOP1(x); WSTV(-1)^=x; continue; +/* AND: */ case 0x3E: MPOP1(x); WSTV(-1)&=x; continue; +/* NOT: */ case 0x3F: MPOP1(x); WPSH1(~x); continue; /* DB1 */ case 0x40: return SIG_DB1; -/* JMP: */ case 0x41: MLIT2(a,b); PC=DOUBLE(a,b); continue; -/* JCN: */ case 0x42: MLIT2(b,c); WPOP1(a); if(a) PC=DOUBLE(b,c); continue; -/* JCK: */ case 0x43: MLIT2(b,c); WGET1(a); if(a) PC=DOUBLE(b,c); continue; -/* LDA: */ case 0x44: MLIT2(a,b); x=DOUBLE(a,b); WPSH1(MEM[x]); continue; -/* STA: */ case 0x45: MLITD(x); WPOP1(a); MEM[x]=a; continue; -/* LDD: */ case 0x46: MLIT1(a); WPSH1(dev_read(br,a)); continue; -/* STD: */ case 0x47: MLIT1(b); WPOP1(a); sig=dev_write(br,b,a); SIGNAL(sig); -/* PSH: */ case 0x48: MLIT1(a); WPSH1(a); continue; -/* POP: */ case 0x49: PC+=1; continue; -/* CPY: */ case 0x4A: MLIT1(a); RPSH1(a); WPSH1(a); continue; -/* SPL: */ case 0x4B: MLIT1(a); WPSH2(LEFT(a),RIGHT(a)); continue; -/* DUP: */ case 0x4C: MLIT1(a); WPSH1(a); WPSH1(a); continue; -/* OVR: */ case 0x4D: MLIT1(b); WGET1(a); WPSH1(b); WPSH1(a); continue; -/* SWP: */ case 0x4E: MLIT1(b); WPOP1(a); WPSH1(b); WPSH1(a); continue; -/* ROT: */ case 0x4F: MLIT1(c); WPOP1(b); WPOP1(a); WPSH1(b); WPSH1(c); WPSH1(a); continue; -/* ADD: */ case 0x50: MLIT1(b); WSTV(-1)+=b; continue; -/* SUB: */ case 0x51: MLIT1(b); WSTV(-1)-=b; continue; -/* INC: */ case 0x52: MLIT1(a); WPSH1(a+1); continue; -/* DEC: */ case 0x53: MLIT1(a); WPSH1(a-1); continue; -/* LTH: */ case 0x54: MLIT1(b); WPOP1(a); WPSH1(BOOL(a<b)); continue; -/* GTH: */ case 0x55: MLIT1(b); WPOP1(a); WPSH1(BOOL(a>b)); continue; -/* EQU: */ case 0x56: MLIT1(b); WPOP1(a); WPSH1(BOOL(a==b)); continue; -/* NQK: */ case 0x57: MLIT1(b); WGET1(a); WPSH1(b); WPSH1(BOOL(a!=b)); continue; -/* IOR: */ case 0x58: MLIT1(b); WSTV(-1)|=b; continue; -/* XOR: */ case 0x59: MLIT1(b); WSTV(-1)^=b; continue; -/* AND: */ case 0x5A: MLIT1(b); WSTV(-1)&=b; continue; -/* NOT: */ case 0x5B: MLIT1(a); WPSH1(~a); continue; -/* SHF: */ case 0x5C: MLIT1(b); WPOP1(a); x=SHF(a,b); WPSH1(x); continue; -/* SHC: */ case 0x5D: MLIT1(b); WPOP1(a); x=shc(a,b); WPSH1(x); continue; -/* TAL: */ case 0x5E: MLIT1(a); WPSH1(TAL(a)); continue; -/* REV: */ case 0x5F: MLIT1(a); WPSH1(rev(a)); continue; +/* PSH* */ case 0x41: RPOP2(x,y); WPSH2(x,y); continue; +/* POP* */ case 0x42: WST.p-=2; continue; +/* CPY* */ case 0x43: RGET2(x,y); WPSH2(x,y); continue; +/* DUP* */ case 0x44: WGET2(x,y); WPSH2(x,y); continue; +/* OVR* */ case 0x45: WPOP2(y,z); WGET2(w,x); WPSH2(y,z); WPSH2(w,x); continue; +/* SWP* */ case 0x46: WPOP2(y,z); WPOP2(w,x); WPSH2(y,z); WPSH2(w,x); continue; +/* ROT* */ case 0x47: WPOP2(y,z); WPOP2(w,x); WPOP2(u,v); WPSH2(w,x); WPSH2(y,z); WPSH2(u,v); continue; +/* JMP* */ case 0x48: WPOPD(x); IP=x; continue; +/* JMS* */ case 0x49: WPOPD(x); RPSHD(IP); IP=x; continue; +/* JCN* */ case 0x4A: WPOPD(y); WPOPD(x); if(x) IP=y; continue; +/* JCS* */ case 0x4B: WPOPD(y); WPOPD(x); if(x) { RPSHD(IP); IP=y; } continue; +/* LDA* */ case 0x4C: WPOPD(x); WPSH2(MEM[x], MEM[x+1]); continue; +/* STA* */ case 0x4D: WPOPD(z); WPOP2(x,y); MEM[z]=x; MEM[z+1]=y; continue; +/* LDD* */ case 0x4E: WPOP1(x); WPSH1(DGET1(x)); WPSH1(DGET1(x+1)); continue; +/* STD* */ case 0x4F: WPOP1(z); WPOP2(x,y); sig=DSET2(z,x,y); SIGNAL(sig); +/* ADD* */ case 0x50: WPOPD(y); WPOPD(x); WPSHD(x+y); continue; +/* SUB* */ case 0x51: WPOPD(y); WPOPD(x); WPSHD(x-y); continue; +/* INC* */ case 0x52: WPOPD(x); WPSHD(x+1); continue; +/* DEC* */ case 0x53: WPOPD(x); WPSHD(x-1); continue; +/* LTH* */ case 0x54: WPOPD(y); WPOPD(x); WPSHB(x<y); continue; +/* GTH* */ case 0x55: WPOPD(y); WPOPD(x); WPSHB(x>y); continue; +/* EQU* */ case 0x56: WPOP2(y,z); WPOP2(w,x); WPSHB(w==y && x==z); continue; +/* NQK* */ case 0x57: z=WSTV(-1); y=WSTV(-2); x=WSTV(-3); w=WSTV(-4); WPSHB(w!=y || x!=z); continue; +/* SHL* */ case 0x58: WPOP1(y); WPOPD(x); WPSHD(x<<y); continue; +/* SHR* */ case 0x59: WPOP1(y); WPOPD(x); WPSHD(x>>y); continue; +/* ROL* */ case 0x5A: WPOP1(y); WPOPD(x); WPSHD(ROLD(x,y)); continue; +/* ROR* */ case 0x5B: WPOP1(y); WPOPD(x); WPSHD(RORD(x,y)); continue; +/* IOR* */ case 0x5C: WPOP2(x,y); WSTV(-1)|=y; WSTV(-2)|=x; continue; +/* XOR* */ case 0x5D: WPOP2(x,y); WSTV(-1)^=y; WSTV(-2)^=x; continue; +/* AND* */ case 0x5E: WPOP2(x,y); WSTV(-1)&=y; WSTV(-2)&=x; continue; +/* NOT* */ case 0x5F: WSTV(-1)=~WSTV(-1); WSTV(-2)=~WSTV(-2); continue; /* DB2 */ case 0x60: return SIG_DB2; -/* JMS: */ case 0x61: MLIT2(a,b); RPSHD(PC); PC=DOUBLE(a,b); continue; -/* JCS: */ case 0x62: MLIT2(b,c); WPOP1(a); if(a) {RPSHD(PC); PC=DOUBLE(b,c);} continue; -/* JCK:* */ case 0x63: MLIT2(c,d); WGETD(x); if(x) {PC=DOUBLE(c,d);} continue; -/* LDA:* */ case 0x64: MLIT2(a,b); x=DOUBLE(a,b); WPSH1(MEM[x]); WPSH1(MEM[x+1]); continue; -/* STA:* */ case 0x65: MLITD(x); WPOP2(a,b); MEM[x]=a; MEM[x+1]=b; continue; -/* LDD:* */ case 0x66: MLIT1(a); WPSH1(dev_read(br,a)); WPSH1(dev_read(br,a+1)); continue; -/* STD:* */ case 0x67: MLIT1(c); WPOP2(a,b); sig=dev_write_16(br,c,a,b); SIGNAL(sig); -/* PSH:* */ case 0x68: MLIT2(a,b); WPSH2(a,b); continue; -/* POP:* */ case 0x69: PC+=2; continue; -/* CPY:* */ case 0x6A: MLIT2(a,b); RPSH2(a,b); WPSH2(a,b); continue; -/* SPL:* */ case 0x6B: MLIT2(a,b); WPSH2(LEFT(a),RIGHT(a)); WPSH2(LEFT(b),RIGHT(b)); continue; -/* DUP:* */ case 0x6C: MLIT2(a,b); WPSH2(a,b); WPSH2(a,b); continue; -/* OVR:* */ case 0x6D: MLIT2(c,d); WGET2(a,b); WPSH2(c,d); WPSH2(a,b); continue; -/* SWP:* */ case 0x6E: MLIT2(c,d); WPOP2(a,b); WPSH2(c,d); WPSH2(a,b); continue; -/* ROT:* */ case 0x6F: MLIT2(e,f); WPOP2(c,d); WPOP2(a,b); WPSH2(c,d); WPSH2(e,f); WPSH2(a,b); continue; -/* ADD:* */ case 0x70: MLITD(y); WPOPD(x); WPSHD(x+y); continue; -/* SUB:* */ case 0x71: MLITD(y); WPOPD(x); WPSHD(x-y); continue; -/* INC:* */ case 0x72: MLITD(x); WPSHD(x+1); continue; -/* DEC:* */ case 0x73: MLITD(x); WPSHD(x-1); continue; -/* LTH:* */ case 0x74: MLITD(y); WPOPD(x); WPSH1(BOOL(x<y)); continue; -/* GTH:* */ case 0x75: MLITD(y); WPOPD(x); WPSH1(BOOL(x>y)); continue; -/* EQU:* */ case 0x76: MLIT2(c,d); WPOP2(a,b); WPSH1(BOOL(a==c && b==d)); continue; -/* NQK:* */ case 0x77: MLIT2(c,d); WGET2(a,b); WPSH2(c,d); WPSH1(BOOL(a!=c || b!=d)); continue; -/* IOR:* */ case 0x78: MLIT2(c,d); WSTV(-1)|=d; WSTV(-2)|=c; continue; -/* XOR:* */ case 0x79: MLIT2(c,d); WSTV(-1)^=d; WSTV(-2)^=c; continue; -/* AND:* */ case 0x7A: MLIT2(c,d); WSTV(-1)&=d; WSTV(-2)&=c; continue; -/* NOT:* */ case 0x7B: MLIT2(a,b); WPSH2(~a,~b); continue; -/* SHF:* */ case 0x7C: MLIT1(c); WPOPD(x); x=SHF(x,c); WPSHD(x); continue; -/* SHC:* */ case 0x7D: MLIT1(c); WPOPD(x); x=shcd(x,c); WPSHD(x); continue; -/* TAL:* */ case 0x7E: MLIT2(a,b); WPSH1(TAL(a)+TAL(b)); continue; -/* REV:* */ case 0x7F: MLIT2(a,b); WPSH1(rev(b)); WPSH1(rev(a)); continue; +/* PSH*: */ case 0x61: MPOP2(x,y); WPSH2(x,y); continue; +/* POP*: */ case 0x62: IP+=2; continue; +/* CPY*: */ case 0x63: MPOP2(x,y); RPSH2(x,y); WPSH2(x,y); continue; +/* DUP*: */ case 0x64: MPOP2(x,y); WPSH2(x,y); WPSH2(x,y); continue; +/* OVR*: */ case 0x65: MPOP2(y,z); WGET2(w,x); WPSH2(y,z); WPSH2(w,x); continue; +/* SWP*: */ case 0x66: MPOP2(y,z); WPOP2(w,x); WPSH2(y,z); WPSH2(w,x); continue; +/* ROT*: */ case 0x67: MPOP2(y,z); WPOP2(w,x); WPOP2(u,v); WPSH2(w,x); WPSH2(y,z); WPSH2(u,v); continue; +/* JMP*: */ case 0x68: MPOPD(x); IP=x; continue; +/* JMS*: */ case 0x69: MPOPD(x); RPSHD(IP); IP=x; continue; +/* JCN*: */ case 0x6A: MPOPD(y); WPOPD(x); if(x) IP=y; continue; +/* JCS*: */ case 0x6B: MPOPD(y); WPOPD(x); if(x) { RPSHD(IP); IP=y; } continue; +/* LDA*: */ case 0x6C: MPOPD(x); WPSH2(MEM[x], MEM[x+1]); continue; +/* STA*: */ case 0x6D: MPOPD(z); WPOP2(x,y); MEM[z]=x; MEM[z+1]=y; continue; +/* LDD*: */ case 0x6E: MPOP1(x); WPSH1(DGET1(x)); WPSH1(DGET1(x+1)); continue; +/* STD*: */ case 0x6F: MPOP1(z); WPOP2(x,y); sig=DSET2(z,x,y); SIGNAL(sig); +/* ADD*: */ case 0x70: MPOPD(y); WPOPD(x); WPSHD(x+y); continue; +/* SUB*: */ case 0x71: MPOPD(y); WPOPD(x); WPSHD(x-y); continue; +/* INC*: */ case 0x72: MPOPD(x); WPSHD(x+1); continue; +/* DEC*: */ case 0x73: MPOPD(x); WPSHD(x-1); continue; +/* LTH*: */ case 0x74: MPOPD(y); WPOPD(x); WPSHB(x<y); continue; +/* GTH*: */ case 0x75: MPOPD(y); WPOPD(x); WPSHB(x>y); continue; +/* EQU*: */ case 0x76: MPOP2(y,z); WPOP2(w,x); WPSHB(w==y && x==z); continue; +/* NQK*: */ case 0x77: MPOP2(y,z); WGET2(w,x); WPSH2(y,z); WPSHB(w!=y || x!=z); continue; +/* SHL*: */ case 0x78: MPOP1(y); WPOPD(x); WPSHD(x<<y); continue; +/* SHR*: */ case 0x79: MPOP1(y); WPOPD(x); WPSHD(x>>y); continue; +/* ROL*: */ case 0x7A: MPOP1(y); WPOPD(x); WPSHD(ROLD(x,y)); continue; +/* ROR*: */ case 0x7B: MPOP1(y); WPOPD(x); WPSHD(RORD(x,y)); continue; +/* IOR*: */ case 0x7C: MPOP2(x,y); WSTV(-1)|=y; WSTV(-2)|=x; continue; +/* XOR*: */ case 0x7D: MPOP2(x,y); WSTV(-1)^=y; WSTV(-2)^=x; continue; +/* AND*: */ case 0x7E: MPOP2(x,y); WSTV(-1)&=y; WSTV(-2)&=x; continue; +/* NOT*: */ case 0x7F: MPOP2(x,y); WPSH2(~x,~y); continue; /* DB3 */ case 0x80: return SIG_DB3; -/* JMPr */ case 0x81: RPOP2(a,b); PC=DOUBLE(a,b); continue; -/* JCNr */ case 0x82: RPOP2(b,c); RPOP1(a); if(a) PC=DOUBLE(b,c); continue; -/* JCKr */ case 0x83: RPOP2(b,c); RGET1(a); if(a) PC=DOUBLE(b,c); continue; -/* LDAr */ case 0x84: RPOP2(a,b); x=DOUBLE(a,b); RPSH1(MEM[x]); continue; -/* STAr */ case 0x85: RPOPD(x); RPOP1(a); MEM[x]=a; continue; -/* LDDr */ case 0x86: RPOP1(a); RPSH1(dev_read(br,a)); continue; -/* STDr */ case 0x87: RPOP1(b); RPOP1(a); sig=dev_write(br,b,a); SIGNAL(sig); -/* PSHr */ case 0x88: WPOP1(a); RPSH1(a); continue; -/* POPr */ case 0x89: RST.p-=1; continue; -/* CPYr */ case 0x8A: WGET1(a); RPSH1(a); continue; -/* SPLr */ case 0x8B: RPOP1(a); RPSH2(LEFT(a),RIGHT(a)); continue; -/* DUPr */ case 0x8C: RGET1(a); RPSH1(a); continue; -/* OVRr */ case 0x8D: RPOP1(b); RGET1(a); RPSH1(b); RPSH1(a); continue; -/* SWPr */ case 0x8E: RPOP1(b); RPOP1(a); RPSH1(b); RPSH1(a); continue; -/* ROTr */ case 0x8F: RPOP1(c); RPOP1(b); RPOP1(a); RPSH1(b); RPSH1(c); RPSH1(a); continue; -/* ADDr */ case 0x90: RPOP1(b); RSTV(-1)+=b; continue; -/* SUBr */ case 0x91: RPOP1(b); RSTV(-1)-=b; continue; +/* PSHr */ case 0x81: WPOP1(x); RPSH1(x); continue; +/* POPr */ case 0x82: RST.p-=1; continue; +/* CPYr */ case 0x83: WGET1(x); RPSH1(x); continue; +/* DUPr */ case 0x84: RGET1(x); RPSH1(x); continue; +/* OVRr */ case 0x85: RPOP1(y); RGET1(x); RPSH1(y); RPSH1(x); continue; +/* SWPr */ case 0x86: RPOP1(y); RPOP1(x); RPSH1(y); RPSH1(x); continue; +/* ROTr */ case 0x87: RPOP1(z); RPOP1(y); RPOP1(x); RPSH1(y); RPSH1(z); RPSH1(x); continue; +/* JMPr */ case 0x88: RPOPD(x); IP=x; continue; +/* JMSr */ case 0x89: RPOPD(x); WPSHD(IP); IP=x; continue; +/* JCNr */ case 0x8A: RPOPD(y); RPOP1(x); if(x) IP=y; continue; +/* JCSr */ case 0x8B: RPOPD(y); RPOP1(x); if(x) { WPSHD(IP); IP=y; } continue; +/* LDAr */ case 0x8C: RPOPD(x); RPSH1(MEM[x]); continue; +/* STAr */ case 0x8D: RPOPD(y); RPOP1(x); MEM[y]=x; continue; +/* LDDr */ case 0x8E: RPOP1(x); RPSH1(dev_read(&br->dev,x)); continue; +/* STDr */ case 0x8F: RPOP1(y); RPOP1(x); sig=dev_write(&br->dev,y,x); SIGNAL(sig); +/* ADDr */ case 0x90: RPOP1(x); RSTV(-1)+=x; continue; +/* SUBr */ case 0x91: RPOP1(x); RSTV(-1)-=x; continue; /* INCr */ case 0x92: RSTV(-1)+=1; continue; /* DECr */ case 0x93: RSTV(-1)-=1; continue; -/* LTHr */ case 0x94: RPOP1(b); RPOP1(a); RPSH1(BOOL(a<b)); continue; -/* GTHr */ case 0x95: RPOP1(b); RPOP1(a); RPSH1(BOOL(a>b)); continue; -/* EQUr */ case 0x96: RPOP1(b); RPOP1(a); RPSH1(BOOL(a==b)); continue; -/* NQKr */ case 0x97: b=RSTV(-1); a=RSTV(-2); RPSH1(BOOL(a!=b)); continue; -/* IORr */ case 0x98: RPOP1(b); RSTV(-1)|=b; continue; -/* XORr */ case 0x99: RPOP1(b); RSTV(-1)^=b; continue; -/* ANDr */ case 0x9A: RPOP1(b); RSTV(-1)&=b; continue; -/* NOTr */ case 0x9B: RSTV(-1)=~RSTV(-1); continue; -/* SHFr */ case 0x9C: RPOP1(b); RPOP1(a); x=SHF(a,b); RPSH1(x); continue; -/* SHCr */ case 0x9D: RPOP1(b); RPOP1(a); x=shc(a,b); RPSH1(x); continue; -/* TALr */ case 0x9E: RSTV(-1)=TAL(RSTV(-1)); continue; -/* REVr */ case 0x9F: RSTV(-1)=rev(RSTV(-1)); continue; +/* LTHr */ case 0x94: RPOP1(y); RPOP1(x); RPSHB(x<y); continue; +/* GTHr */ case 0x95: RPOP1(y); RPOP1(x); RPSHB(x>y); continue; +/* EQUr */ case 0x96: RPOP1(y); RPOP1(x); RPSHB(x==y); continue; +/* NQKr */ case 0x97: y=RSTV(-1); x=RSTV(-2); RPSHB(x!=y); continue; +/* SHLr */ case 0x98: RPOP1(y); RPOP1(x); RPSH1(x<<y); continue; +/* SHRr */ case 0x99: RPOP1(y); RPOP1(x); RPSH1(x>>y); continue; +/* ROLr */ case 0x9A: RPOP1(y); RPOP1(x); RPSH1(ROL1(x,y)); continue; +/* RORr */ case 0x9B: RPOP1(y); RPOP1(x); RPSH1(ROR1(x,y)); continue; +/* IORr */ case 0x9C: RPOP1(x); RSTV(-1)|=x; continue; +/* XORr */ case 0x9D: RPOP1(x); RSTV(-1)^=x; continue; +/* ANDr */ case 0x9E: RPOP1(x); RSTV(-1)&=x; continue; +/* NOTr */ case 0x9F: RSTV(-1)=~RSTV(-1); continue; /* DB4 */ case 0xA0: return SIG_DB4; -/* JMSr */ case 0xA1: RPOP2(a,b); WPSHD(PC); PC=DOUBLE(a,b); continue; -/* JCSr */ case 0xA2: RPOP2(b,c); RPOP1(a); if(a) {WPSHD(PC); PC=DOUBLE(b,c);} continue; -/* JCKr* */ case 0xA3: RPOP2(c,d); RGETD(x); if(x) {PC=DOUBLE(c,d);} continue; -/* LDAr* */ case 0xA4: RPOP2(a,b); x=DOUBLE(a,b); RPSH1(MEM[x]); RPSH1(MEM[x+1]); continue; -/* STAr* */ case 0xA5: RPOPD(x); RPOP2(a,b); MEM[x]=a; MEM[x+1]=b; continue; -/* LDDr* */ case 0xA6: RPOP1(a); RPSH1(dev_read(br,a)); RPSH1(dev_read(br,a+1)); continue; -/* STDr* */ case 0xA7: RPOP1(c); RPOP2(a,b); sig=dev_write_16(br,c,a,b); SIGNAL(sig); -/* PSHr* */ case 0xA8: WPOP2(a,b); RPSH2(a,b); continue; -/* POPr* */ case 0xA9: RST.p-=2; continue; -/* CPYr* */ case 0xAA: WGET2(a,b); RPSH2(a,b); continue; -/* SPLr* */ case 0xAB: RPOP2(a,b); RPSH2(LEFT(a),RIGHT(a)); RPSH2(LEFT(b),RIGHT(b)); continue; -/* DUPr* */ case 0xAC: RGET2(a,b); RPSH2(a,b); continue; -/* OVRr* */ case 0xAD: RPOP2(c,d); RGET2(a,b); RPSH2(c,d); RPSH2(a,b); continue; -/* SWPr* */ case 0xAE: RPOP2(c,d); RPOP2(a,b); RPSH2(c,d); RPSH2(a,b); continue; -/* ROTr* */ case 0xAF: RPOP2(e,f); RPOP2(c,d); RPOP2(a,b); RPSH2(c,d); RPSH2(e,f); RPSH2(a,b); continue; -/* ADDr* */ case 0xB0: RPOPD(y); RPOPD(x); RPSHD(x+y); continue; -/* SUBr* */ case 0xB1: RPOPD(y); RPOPD(x); RPSHD(x-y); continue; -/* INCr* */ case 0xB2: RPOPD(x); RPSHD(x+1); continue; -/* DECr* */ case 0xB3: RPOPD(x); RPSHD(x-1); continue; -/* LTHr* */ case 0xB4: RPOPD(y); RPOPD(x); RPSH1(BOOL(x<y)); continue; -/* GTHr* */ case 0xB5: RPOPD(y); RPOPD(x); RPSH1(BOOL(x>y)); continue; -/* EQUr* */ case 0xB6: RPOP2(c,d); RPOP2(a,b); RPSH1(BOOL(a==c && b==d)); continue; -/* NQKr* */ case 0xB7: d=RSTV(-1); c=RSTV(-2); b=RSTV(-3); a=RSTV(-4); RPSH1(BOOL(a!=c || b!=d)); continue; -/* IORr* */ case 0xB8: RPOP2(c,d); RSTV(-1)|=d; RSTV(-2)|=c; continue; -/* XORr* */ case 0xB9: RPOP2(c,d); RSTV(-1)^=d; RSTV(-2)^=c; continue; -/* ANDr* */ case 0xBA: RPOP2(c,d); RSTV(-1)&=d; RSTV(-2)&=c; continue; -/* NOTr* */ case 0xBB: RSTV(-1)=~RSTV(-1); RSTV(-2)=~RSTV(-2); continue; -/* SHFr* */ case 0xBC: RPOP1(c); RPOPD(x); x=SHF(x,c); RPSHD(x); continue; -/* SHCr* */ case 0xBD: RPOP1(c); RPOPD(x); x=shcd(x,c); RPSHD(x); continue; -/* TALr* */ case 0xBE: RPOP2(a,b); RPSH1(TAL(a)+TAL(b)); continue; -/* REVr* */ case 0xBF: RPOP2(a,b); RPSH1(rev(b)); RPSH1(rev(a)); continue; +/* PSHr: */ case 0xA1: MPOP1(x); RPSH1(x); continue; +/* POPr: */ case 0xA2: IP+=1; continue; +/* CPYr: */ case 0xA3: MPOP1(x); WPSH1(x); RPSH1(x); continue; +/* DUPr: */ case 0xA4: MPOP1(x); RPSH1(x); RPSH1(x); continue; +/* OVRr: */ case 0xA5: MPOP1(y); RGET1(x); RPSH1(y); RPSH1(x); continue; +/* SWPr: */ case 0xA6: MPOP1(y); RPOP1(x); RPSH1(y); RPSH1(x); continue; +/* ROTr: */ case 0xA7: MPOP1(z); RPOP1(y); RPOP1(x); RPSH1(y); RPSH1(z); RPSH1(x); continue; +/* JMPr: */ case 0xA8: MPOPD(x); IP=x; continue; +/* JMSr: */ case 0xA9: MPOPD(x); WPSHD(IP); IP=x; continue; +/* JCNr: */ case 0xAA: MPOPD(y); RPOP1(x); if(x) IP=y; continue; +/* JCSr: */ case 0xAB: MPOPD(y); RPOP1(x); if(x) { WPSHD(IP); IP=y; } continue; +/* LDAr: */ case 0xAC: MPOPD(x); RPSH1(MEM[x]); continue; +/* STAr: */ case 0xAD: MPOPD(y); RPOP1(x); MEM[y]=x; continue; +/* LDDr: */ case 0xAE: MPOP1(x); RPSH1(dev_read(&br->dev,x)); continue; +/* STDr: */ case 0xAF: MPOP1(y); RPOP1(x); sig=dev_write(&br->dev,y,x); SIGNAL(sig); +/* ADDr: */ case 0xB0: MPOP1(x); RSTV(-1)+=x; continue; +/* SUBr: */ case 0xB1: MPOP1(x); RSTV(-1)-=x; continue; +/* INCr: */ case 0xB2: MPOP1(x); RPSH1(x+1); continue; +/* DECr: */ case 0xB3: MPOP1(x); RPSH1(x-1); continue; +/* LTHr: */ case 0xB4: MPOP1(y); RPOP1(x); RPSHB(x<y); continue; +/* GTHr: */ case 0xB5: MPOP1(y); RPOP1(x); RPSHB(x>y); continue; +/* EQUr: */ case 0xB6: MPOP1(y); RPOP1(x); RPSHB(x==y); continue; +/* NQKr: */ case 0xB7: MPOP1(y); RGET1(x); RPSH1(y); RPSHB(x!=y); continue; +/* SHLr: */ case 0xB8: MPOP1(y); RPOP1(x); RPSH1(x<<y); continue; +/* SHRr: */ case 0xB9: MPOP1(y); RPOP1(x); RPSH1(x>>y); continue; +/* ROLr: */ case 0xBA: MPOP1(y); RPOP1(x); RPSH1(ROL1(x,y)); continue; +/* RORr: */ case 0xBB: MPOP1(y); RPOP1(x); RPSH1(ROR1(x,y)); continue; +/* IORr: */ case 0xBC: MPOP1(x); RSTV(-1)|=x; continue; +/* XORr: */ case 0xBD: MPOP1(x); RSTV(-1)^=x; continue; +/* ANDr: */ case 0xBE: MPOP1(x); RSTV(-1)&=x; continue; +/* NOTr: */ case 0xBF: MPOP1(x); RPSH1(~x); continue; /* DB5 */ case 0xC0: return SIG_DB5; -/* JMPr: */ case 0xC1: MLIT2(a,b); PC=DOUBLE(a,b); continue; -/* JCNr: */ case 0xC2: MLIT2(b,c); RPOP1(a); if(a) PC=DOUBLE(b,c); continue; -/* JCKr: */ case 0xC3: MLIT2(b,c); RGET1(a); if(a) PC=DOUBLE(b,c); continue; -/* LDAr: */ case 0xC4: MLIT2(a,b); x=DOUBLE(a,b); RPSH1(MEM[x]); continue; -/* STAr: */ case 0xC5: MLITD(x); RPOP1(a); MEM[x]=a; continue; -/* LDDr: */ case 0xC6: MLIT1(a); RPSH1(dev_read(br,a)); continue; -/* STDr: */ case 0xC7: MLIT1(b); RPOP1(a); sig=dev_write(br,b,a); SIGNAL(sig); -/* PSHr: */ case 0xC8: MLIT1(a); RPSH1(a); continue; -/* POPr: */ case 0xC9: PC+=1; continue; -/* CPYr: */ case 0xCA: MLIT1(a); WPSH1(a); RPSH1(a); continue; -/* SPLr: */ case 0xCB: MLIT1(a); RPSH2(LEFT(a),RIGHT(a)); continue; -/* DUPr: */ case 0xCC: MLIT1(a); RPSH1(a); RPSH1(a); continue; -/* OVRr: */ case 0xCD: MLIT1(b); RGET1(a); RPSH1(b); RPSH1(a); continue; -/* SWPr: */ case 0xCE: MLIT1(b); RPOP1(a); RPSH1(b); RPSH1(a); continue; -/* ROTr: */ case 0xCF: MLIT1(c); RPOP1(b); RPOP1(a); RPSH1(b); RPSH1(c); RPSH1(a); continue; -/* ADDr: */ case 0xD0: MLIT1(b); RSTV(-1)+=b; continue; -/* SUBr: */ case 0xD1: MLIT1(b); RSTV(-1)-=b; continue; -/* INCr: */ case 0xD2: MLIT1(a); RPSH1(a+1); continue; -/* DECr: */ case 0xD3: MLIT1(a); RPSH1(a-1); continue; -/* LTHr: */ case 0xD4: MLIT1(b); RPOP1(a); RPSH1(BOOL(a<b)); continue; -/* GTHr: */ case 0xD5: MLIT1(b); RPOP1(a); RPSH1(BOOL(a>b)); continue; -/* EQUr: */ case 0xD6: MLIT1(b); RPOP1(a); RPSH1(BOOL(a==b)); continue; -/* NQKr: */ case 0xD7: MLIT1(b); RGET1(a); RPSH1(b); RPSH1(BOOL(a!=b)); continue; -/* IORr: */ case 0xD8: MLIT1(b); RSTV(-1)|=b; continue; -/* XORr: */ case 0xD9: MLIT1(b); RSTV(-1)^=b; continue; -/* ANDr: */ case 0xDA: MLIT1(b); RSTV(-1)&=b; continue; -/* NOTr: */ case 0xDB: MLIT1(a); RPSH1(~a); continue; -/* SHFr: */ case 0xDC: MLIT1(b); RPOP1(a); x=SHF(a,b); RPSH1(x); continue; -/* SHCr: */ case 0xDD: MLIT1(b); RPOP1(a); x=shc(a,b); RPSH1(x); continue; -/* TALr: */ case 0xDE: MLIT1(a); RPSH1(TAL(a)); continue; -/* REVr: */ case 0xDF: MLIT1(a); RPSH1(rev(a)); continue; +/* PSHr* */ case 0xC1: WPOP2(x,y); RPSH2(x,y); continue; +/* POPr* */ case 0xC2: RST.p-=2; continue; +/* CPYr* */ case 0xC3: WGET2(x,y); RPSH2(x,y); continue; +/* DUPr* */ case 0xC4: RGET2(x,y); RPSH2(x,y); continue; +/* OVRr* */ case 0xC5: RPOP2(y,z); RGET2(w,x); RPSH2(y,z); RPSH2(w,x); continue; +/* SWPr* */ case 0xC6: RPOP2(y,z); RPOP2(w,x); RPSH2(y,z); RPSH2(w,x); continue; +/* ROTr* */ case 0xC7: RPOP2(y,z); RPOP2(w,x); RPOP2(u,v); RPSH2(w,x); RPSH2(y,z); RPSH2(u,v); continue; +/* JMPr* */ case 0xC8: RPOPD(x); IP=x; continue; +/* JMSr* */ case 0xC9: RPOPD(x); WPSHD(IP); IP=x; continue; +/* JCNr* */ case 0xCA: RPOPD(y); RPOPD(x); if(x) IP=y; continue; +/* JCSr* */ case 0xCB: RPOPD(y); RPOPD(x); if(x) { WPSHD(IP); IP=y; } continue; +/* LDAr* */ case 0xCC: RPOPD(x); RPSH2(MEM[x], MEM[x+1]); continue; +/* STAr* */ case 0xCD: RPOPD(z); RPOP2(x,y); MEM[z]=x; MEM[z+1]=y; continue; +/* LDDr* */ case 0xCE: RPOP1(x); RPSH1(DGET1(x)); RPSH1(DGET1(x+1)); continue; +/* STDr* */ case 0xCF: RPOP1(z); RPOP2(x,y); sig=DSET2(z,x,y); SIGNAL(sig); +/* ADDr* */ case 0xD0: RPOPD(y); RPOPD(x); RPSHD(x+y); continue; +/* SUBr* */ case 0xD1: RPOPD(y); RPOPD(x); RPSHD(x-y); continue; +/* INCr* */ case 0xD2: RPOPD(x); RPSHD(x+1); continue; +/* DECr* */ case 0xD3: RPOPD(x); RPSHD(x-1); continue; +/* LTHr* */ case 0xD4: RPOPD(y); RPOPD(x); RPSHB(x<y); continue; +/* GTHr* */ case 0xD5: RPOPD(y); RPOPD(x); RPSHB(x>y); continue; +/* EQUr* */ case 0xD6: RPOP2(y,z); RPOP2(w,x); RPSHB(w==y && x==z); continue; +/* NQKr* */ case 0xD7: z=RSTV(-1); y=RSTV(-2); x=RSTV(-3); w=RSTV(-4); RPSHB(w!=y || x!=z); continue; +/* SHLr* */ case 0xD8: RPOP1(y); RPOPD(x); RPSHD(x<<y); continue; +/* SHRr* */ case 0xD9: RPOP1(y); RPOPD(x); RPSHD(x>>y); continue; +/* ROLr* */ case 0xDA: RPOP1(y); RPOPD(x); RPSHD(ROLD(x,y)); continue; +/* RORr* */ case 0xDB: RPOP1(y); RPOPD(x); RPSHD(RORD(x,y)); continue; +/* IORr* */ case 0xDC: RPOP2(x,y); RSTV(-1)|=y; RSTV(-2)|=x; continue; +/* XORr* */ case 0xDD: RPOP2(x,y); RSTV(-1)^=y; RSTV(-2)^=x; continue; +/* ANDr* */ case 0xDE: RPOP2(x,y); RSTV(-1)&=y; RSTV(-2)&=x; continue; +/* NOTr* */ case 0xDF: RSTV(-1)=~RSTV(-1); RSTV(-2)=~RSTV(-2); continue; /* DB6 */ case 0xE0: return SIG_DB6; -/* JMSr */ case 0xE1: MLIT2(a,b); WPSHD(PC); PC=DOUBLE(a,b); continue; -/* JCSr */ case 0xE2: MLIT2(b,c); RPOP1(a); if(a) {WPSHD(PC); PC=DOUBLE(b,c);} continue; -/* JCKr* */ case 0xE3: MLIT2(c,d); RGETD(x); if(x) {PC=DOUBLE(c,d);} continue; -/* LDAr* */ case 0xE4: MLIT2(a,b); x=DOUBLE(a,b); RPSH1(MEM[x]); RPSH1(MEM[x+1]); continue; -/* STAr* */ case 0xE5: MLITD(x); RPOP2(a,b); MEM[x]=a; MEM[x+1]=b; continue; -/* LDDr* */ case 0xE6: MLIT1(a); RPSH1(dev_read(br,a)); RPSH1(dev_read(br,a+1)); continue; -/* STDr* */ case 0xE7: MLIT1(c); RPOP2(a,b); sig=dev_write_16(br,c,a,b); SIGNAL(sig); -/* PSHr* */ case 0xE8: MLIT2(a,b); RPSH2(a,b); continue; -/* POPr* */ case 0xE9: PC+=2; continue; -/* CPYr* */ case 0xEA: MLIT2(a,b); WPSH2(a,b); RPSH2(a,b); continue; -/* SPLr* */ case 0xEB: MLIT2(a,b); RPSH2(LEFT(a),RIGHT(a)); RPSH2(LEFT(b),RIGHT(b)); continue; -/* DUPr* */ case 0xEC: MLIT2(a,b); RPSH2(a,b); RPSH2(a,b); continue; -/* OVRr* */ case 0xED: MLIT2(c,d); RGET2(a,b); RPSH2(c,d); RPSH2(a,b); continue; -/* SWPr* */ case 0xEE: MLIT2(c,d); RPOP2(a,b); RPSH2(c,d); RPSH2(a,b); continue; -/* ROTr* */ case 0xEF: MLIT2(e,f); RPOP2(c,d); RPOP2(a,b); RPSH2(c,d); RPSH2(e,f); RPSH2(a,b); continue; -/* ADDr* */ case 0xF0: MLITD(y); RPOPD(x); RPSHD(x+y); continue; -/* SUBr* */ case 0xF1: MLITD(y); RPOPD(x); RPSHD(x-y); continue; -/* INCr* */ case 0xF2: MLITD(x); RPSHD(x+1); continue; -/* DECr* */ case 0xF3: MLITD(x); RPSHD(x-1); continue; -/* LTHr* */ case 0xF4: MLITD(y); RPOPD(x); RPSH1(BOOL(x<y)); continue; -/* GTHr* */ case 0xF5: MLITD(y); RPOPD(x); RPSH1(BOOL(x>y)); continue; -/* EQUr* */ case 0xF6: MLIT2(c,d); RPOP2(a,b); RPSH1(BOOL(a==c && b==d)); continue; -/* NQKr* */ case 0xF7: MLIT2(c,d); RGET2(a,b); RPSH2(c,d); RPSH1(BOOL(a!=c || b!=d)); continue; -/* IORr* */ case 0xF8: MLIT2(c,d); RSTV(-1)|=d; RSTV(-2)|=c; continue; -/* XORr* */ case 0xF9: MLIT2(c,d); RSTV(-1)^=d; RSTV(-2)^=c; continue; -/* ANDr* */ case 0xFA: MLIT2(c,d); RSTV(-1)&=d; RSTV(-2)&=c; continue; -/* NOTr* */ case 0xFB: MLIT2(a,b); RPSH2(~a,~b); continue; -/* SHFr* */ case 0xFC: MLIT1(c); RPOPD(x); x=SHF(x,c); RPSHD(x); continue; -/* SHCr* */ case 0xFD: MLIT1(c); RPOPD(x); x=shcd(x,c); RPSHD(x); continue; -/* TALr* */ case 0xFE: MLIT2(a,b); RPSH1(TAL(a)+TAL(b)); continue; -/* REVr* */ case 0xFF: MLIT2(a,b); RPSH1(rev(b)); RPSH1(rev(a)); continue; +/* PSHr*: */ case 0xE1: MPOP2(x,y); RPSH2(x,y); continue; +/* POPr*: */ case 0xE2: IP+=2; continue; +/* CPYr*: */ case 0xE3: MPOP2(x,y); WPSH2(x,y); RPSH2(x,y); continue; +/* DUPr*: */ case 0xE4: MPOP2(x,y); RPSH2(x,y); RPSH2(x,y); continue; +/* OVRr*: */ case 0xE5: MPOP2(y,z); RGET2(w,x); RPSH2(y,z); RPSH2(w,x); continue; +/* SWPr*: */ case 0xE6: MPOP2(y,z); RPOP2(w,x); RPSH2(y,z); RPSH2(w,x); continue; +/* ROTr*: */ case 0xE7: MPOP2(y,z); RPOP2(w,x); RPOP2(u,v); RPSH2(w,x); RPSH2(y,z); RPSH2(u,v); continue; +/* JMPr*: */ case 0xE8: MPOPD(x); IP=x; continue; +/* JMSr*: */ case 0xE9: MPOPD(x); WPSHD(IP); IP=x; continue; +/* JCNr*: */ case 0xEA: MPOPD(y); RPOPD(x); if(x) IP=y; continue; +/* JCSr*: */ case 0xEB: MPOPD(y); RPOPD(x); if(x) { WPSHD(IP); IP=y; } continue; +/* LDAr*: */ case 0xEC: MPOPD(x); RPSH2(MEM[x], MEM[x+1]); continue; +/* STAr*: */ case 0xED: MPOPD(z); RPOP2(x,y); MEM[z]=x; MEM[z+1]=y; continue; +/* LDDr*: */ case 0xEE: MPOP1(x); RPSH1(DGET1(x)); RPSH1(DGET1(x+1)); continue; +/* STDr*: */ case 0xEF: MPOP1(z); RPOP2(x,y); sig=DSET2(z,x,y); SIGNAL(sig); +/* ADDr*: */ case 0xF0: MPOPD(y); RPOPD(x); RPSHD(x+y); continue; +/* SUBr*: */ case 0xF1: MPOPD(y); RPOPD(x); RPSHD(x-y); continue; +/* INCr*: */ case 0xF2: MPOPD(x); RPSHD(x+1); continue; +/* DECr*: */ case 0xF3: MPOPD(x); RPSHD(x-1); continue; +/* LTHr*: */ case 0xF4: MPOPD(y); RPOPD(x); RPSHB(x<y); continue; +/* GTHr*: */ case 0xF5: MPOPD(y); RPOPD(x); RPSHB(x>y); continue; +/* EQUr*: */ case 0xF6: MPOP2(y,z); RPOP2(w,x); RPSHB(w==y && x==z); continue; +/* NQKr*: */ case 0xF7: MPOP2(y,z); RGET2(w,x); RPSH2(y,z); RPSHB(w!=y || x!=z); continue; +/* SHLr*: */ case 0xF8: MPOP1(y); RPOPD(x); RPSHD(x<<y); continue; +/* SHRr*: */ case 0xF9: MPOP1(y); RPOPD(x); RPSHD(x>>y); continue; +/* ROLr*: */ case 0xFA: MPOP1(y); RPOPD(x); RPSHD(ROLD(x,y)); continue; +/* RORr*: */ case 0xFB: MPOP1(y); RPOPD(x); RPSHD(RORD(x,y)); continue; +/* IORr*: */ case 0xFC: MPOP2(x,y); RSTV(-1)|=y; RSTV(-2)|=x; continue; +/* XORr*: */ case 0xFD: MPOP2(x,y); RSTV(-1)^=y; RSTV(-2)^=x; continue; +/* ANDr*: */ case 0xFE: MPOP2(x,y); RSTV(-1)&=y; RSTV(-2)&=x; continue; +/* NOTr*: */ case 0xFF: MPOP2(x,y); RPSH2(~x,~y); continue; } } return SIG_NONE; } + +// Print a stack to the debug console. +void debug_print_stack(Stack *stack) { + for (int i=0; i<stack->p; i++) { + printf("%02x ", stack->mem[i]); + } +} + +// Print the state of a Bedrock instance to the debug console. +void debug_print_state(Bedrock *br) { + printf("\nP:0x%04x", br->ip); + printf("\nW:"); debug_print_stack(&br->wst); + printf("\nR:"); debug_print_stack(&br->rst); + printf("\n"); +} + +// Print the state of a Bedrock instance to the debug console. +void debug_print_brief(Bedrock *br) { + printf("[%02X %02X]", br->wst.p, br->rst.p); +} + +// Assert the state of a Bedrock instance, print to the debug console.. +void debug_print_assert(Bedrock *br) { + if (br->wst.mem[0] == 0xff && br->wst.p == 1 && br->rst.p == 0) { + printf("."); + } else { + printf("X"); + } +} + +// Run a Bedrock instance for a number of cycles. +void br_run(Bedrock *br) { + if (br->alive && br->awake) { + switch (br_eval(br, 50000)) { + case SIG_HALT: br->alive = false; + ndsscreen_clear(br->dev.screen.nds); return; + case SIG_SLEEP: br->awake = false; return; + case SIG_DB1: debug_print_state(br); return; + case SIG_DB2: debug_print_brief(br); return; + case SIG_DB4: debug_print_assert(br); return; + default: return; + } + } +} |