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cebix |
1.1 |
/* |
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* emul_op.cpp - 68k opcodes for ROM patches |
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* |
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* Basilisk II (C) 1997-1999 Christian Bauer |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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#include <string.h> |
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#include <stdio.h> |
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#include "sysdeps.h" |
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#include "cpu_emulation.h" |
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#include "main.h" |
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#include "macos_util.h" |
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#include "rom_patches.h" |
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#include "rsrc_patches.h" |
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#include "xpram.h" |
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#include "adb.h" |
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#include "timer.h" |
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#include "clip.h" |
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#include "serial.h" |
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#include "sony.h" |
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#include "disk.h" |
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#include "cdrom.h" |
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#include "scsi.h" |
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#include "video.h" |
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#include "audio.h" |
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#include "ether.h" |
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cebix |
1.4 |
#include "extfs.h" |
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cebix |
1.1 |
#include "emul_op.h" |
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cebix |
1.8 |
#if ENABLE_MON |
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#include "mon.h" |
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#endif |
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cebix |
1.1 |
#define DEBUG 0 |
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#include "debug.h" |
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/* |
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* Execute EMUL_OP opcode (called by 68k emulator or Illegal Instruction trap handler) |
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*/ |
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void EmulOp(uint16 opcode, M68kRegisters *r) |
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{ |
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D(bug("EmulOp %04x\n", opcode)); |
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switch (opcode) { |
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case M68K_EMUL_BREAK: { // Breakpoint |
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printf("*** Breakpoint\n"); |
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printf("d0 %08lx d1 %08lx d2 %08lx d3 %08lx\n" |
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"d4 %08lx d5 %08lx d6 %08lx d7 %08lx\n" |
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"a0 %08lx a1 %08lx a2 %08lx a3 %08lx\n" |
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"a4 %08lx a5 %08lx a6 %08lx a7 %08lx\n" |
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"sr %04x\n", |
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r->d[0], r->d[1], r->d[2], r->d[3], r->d[4], r->d[5], r->d[6], r->d[7], |
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r->a[0], r->a[1], r->a[2], r->a[3], r->a[4], r->a[5], r->a[6], r->a[7], |
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r->sr); |
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cebix |
1.8 |
#if ENABLE_MON |
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char *arg[2]; |
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arg[0] = "rmon"; |
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arg[1] = NULL; |
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mon(1, arg); |
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#endif |
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cebix |
1.1 |
QuitEmulator(); |
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break; |
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} |
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case M68K_EMUL_OP_SHUTDOWN: // Quit emulator |
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QuitEmulator(); |
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break; |
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case M68K_EMUL_OP_RESET: { // MacOS reset |
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D(bug("*** RESET ***\n")); |
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TimerReset(); |
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EtherReset(); |
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// Create BootGlobs at top of memory |
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memset((void *)(RAMBaseHost + RAMSize - 4096), 0, 4096); |
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uint32 boot_globs = RAMBaseMac + RAMSize - 0x1c; |
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WriteMacInt32(boot_globs + 0x00, RAMBaseMac); // First RAM bank |
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WriteMacInt32(boot_globs + 0x04, RAMSize); |
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WriteMacInt32(boot_globs + 0x08, 0xffffffff); // End of bank table |
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WriteMacInt32(boot_globs + 0x0c, 0); |
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// Setup registers for boot routine |
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r->d[0] = ReadMacInt32(ROMBaseMac + UniversalInfo + 0x18); // AddrMapFlags |
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r->d[1] = ReadMacInt32(ROMBaseMac + UniversalInfo + 0x1c); // UnivROMFlags |
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r->d[2] = ReadMacInt32(ROMBaseMac + UniversalInfo + 0x10); // HWCfgFlags/IDs |
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if (FPUType) |
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r->d[2] |= 0x10000000; // Set FPU flag if FPU present |
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else |
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r->d[2] &= 0xefffffff; // Clear FPU flag if no FPU present |
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r->a[0] = ROMBaseMac + UniversalInfo + ReadMacInt32(ROMBaseMac + UniversalInfo);// AddrMap |
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r->a[1] = ROMBaseMac + UniversalInfo; // UniversalInfo |
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r->a[6] = boot_globs; // BootGlobs |
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r->a[7] = RAMBaseMac + 0x10000; // Boot stack |
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break; |
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} |
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case M68K_EMUL_OP_CLKNOMEM: { // Clock/PRAM operations |
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bool is_read = r->d[1] & 0x80; |
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if ((r->d[1] & 0x78) == 0x38) { |
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// XPRAM |
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uint8 reg = (r->d[1] << 5) & 0xe0 | (r->d[1] >> 10) & 0x1f; |
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if (is_read) { |
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r->d[2] = XPRAM[reg]; |
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bool localtalk = !(XPRAM[0xe0] || XPRAM[0xe1]); // LocalTalk enabled? |
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switch (reg) { |
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case 0x08: |
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if (ROMVersion != ROM_VERSION_32) |
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r->d[2] &= 0xf8; |
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break; |
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case 0x8a: |
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r->d[2] |= 0x05; // 32bit mode is always enabled |
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break; |
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case 0xe0: // Disable LocalTalk (use EtherTalk instead) |
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if (localtalk) |
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r->d[2] = 0x00; |
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break; |
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case 0xe1: |
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if (localtalk) |
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r->d[2] = 0xf1; |
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break; |
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case 0xe2: |
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if (localtalk) |
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r->d[2] = 0x00; |
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break; |
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case 0xe3: |
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if (localtalk) |
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r->d[2] = 0x0a; |
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break; |
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} |
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D(bug("Read XPRAM %02x->%02lx\n", reg, r->d[2])); |
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} else { |
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D(bug("Write XPRAM %02x<-%02lx\n", reg, r->d[2] & 0xff)); |
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if (reg == 0x8a && !TwentyFourBitAddressing) |
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r->d[2] |= 0x05; // 32bit mode is always enabled if possible |
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XPRAM[reg] = r->d[2]; |
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} |
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} else { |
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// PRAM, RTC and other clock registers |
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uint8 reg = (r->d[1] >> 2) & 0x1f; |
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if (reg >= 0x10 || (reg >= 0x08 && reg < 0x0c)) { |
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if (is_read) { |
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r->d[2] = XPRAM[reg]; |
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D(bug("Read XPRAM %02x->%02x\n", reg, XPRAM[reg])); |
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} else { |
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D(bug("Write PRAM %02x<-%02lx\n", reg, r->d[2])); |
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XPRAM[reg] = r->d[2]; |
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} |
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} else if (reg < 0x08 && is_read) { |
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uint32 t = TimerDateTime(); |
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cebix |
1.2 |
uint8 b = t; |
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cebix |
1.1 |
switch (reg & 3) { |
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case 1: b = t >> 8; break; |
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case 2: b = t >> 16; break; |
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case 3: b = t >> 24; break; |
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} |
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r->d[2] = b; |
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} else |
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D(bug("RTC %s op %d, d1 %08lx d2 %08lx\n", is_read ? "read" : "write", reg, r->d[1], r->d[2])); |
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} |
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r->d[0] = 0; |
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r->d[1] = r->d[2]; |
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break; |
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} |
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case M68K_EMUL_OP_READ_XPRAM: // Read from XPRAM (ROM10/11) |
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D(bug("Read XPRAM %02lx\n", r->d[1])); |
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r->d[1] = XPRAM[r->d[1] & 0xff]; |
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break; |
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case M68K_EMUL_OP_READ_XPRAM2: // Read from XPRAM (ROM15) |
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D(bug("Read XPRAM %02lx\n", r->d[0])); |
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r->d[0] = XPRAM[r->d[0] & 0xff]; |
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break; |
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case M68K_EMUL_OP_PATCH_BOOT_GLOBS: // Patch BootGlobs at startup |
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D(bug("Patch BootGlobs\n")); |
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WriteMacInt32(r->a[4] - 20, RAMBaseMac + RAMSize); // MemTop |
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WriteMacInt8(r->a[4] - 26, 0); // No MMU |
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WriteMacInt8(r->a[4] - 25, ReadMacInt8(r->a[4] - 25) | 1); // No MMU |
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r->a[6] = RAMBaseMac + RAMSize; |
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break; |
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case M68K_EMUL_OP_FIX_BOOTSTACK: // Set boot stack to 3/4 of RAM (7.5) |
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D(bug("Fix boot stack\n")); |
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r->a[1] = RAMBaseMac + RAMSize * 3 / 4; |
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break; |
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case M68K_EMUL_OP_FIX_MEMSIZE: { // Set correct logical and physical memory size |
| 205 |
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D(bug("Fix MemSize\n")); |
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uint32 diff = ReadMacInt32(0x1ef8) - ReadMacInt32(0x1ef4); // Difference between logical and physical size |
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WriteMacInt32(0x1ef8, RAMSize); // Physical RAM size |
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WriteMacInt32(0x1ef4, RAMSize - diff); // Logical RAM size |
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break; |
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} |
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case M68K_EMUL_OP_ADBOP: // ADBOp() replacement |
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ADBOp(r->d[0], Mac2HostAddr(ReadMacInt32(r->a[0]))); |
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break; |
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case M68K_EMUL_OP_INSTIME: // InsTime() replacement |
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r->d[0] = InsTime(r->a[0], r->d[1]); |
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break; |
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case M68K_EMUL_OP_RMVTIME: // RmvTime() replacement |
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r->d[0] = RmvTime(r->a[0]); |
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break; |
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| 224 |
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case M68K_EMUL_OP_PRIMETIME: // PrimeTime() replacement |
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r->d[0] = PrimeTime(r->a[0], r->d[0]); |
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break; |
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case M68K_EMUL_OP_MICROSECONDS: // Microseconds() replacement |
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Microseconds(r->a[0], r->d[0]); |
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break; |
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case M68K_EMUL_OP_INSTALL_DRIVERS: {// Patch to install our own drivers during startup |
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// Install drivers |
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D(bug("InstallDrivers\n")); |
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InstallDrivers(r->a[0]); |
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// Install PutScrap() patch |
| 238 |
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M68kRegisters r; |
| 239 |
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r.d[0] = 0xa9fe; |
| 240 |
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r.a[0] = PutScrapPatch; |
| 241 |
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Execute68kTrap(0xa647, &r); // SetToolTrap() |
| 242 |
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| 243 |
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// Setup fake ASC registers |
| 244 |
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if (ROMVersion == ROM_VERSION_32) { |
| 245 |
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r.d[0] = 0x1000; |
| 246 |
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Execute68kTrap(0xa71e, &r); // NewPtrSysClear() |
| 247 |
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uint32 asc_regs = r.a[0]; |
| 248 |
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D(bug("ASC registers at %08lx\n", asc_regs)); |
| 249 |
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WriteMacInt8(asc_regs + 0x800, 0x0f); // Set ASC version number |
| 250 |
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WriteMacInt32(0xcc0, asc_regs); // Set ASCBase |
| 251 |
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} |
| 252 |
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break; |
| 253 |
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} |
| 254 |
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| 255 |
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case M68K_EMUL_OP_SERD: // Install serial drivers |
| 256 |
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D(bug("InstallSERD\n")); |
| 257 |
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InstallSERD(); |
| 258 |
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break; |
| 259 |
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| 260 |
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case M68K_EMUL_OP_SONY_OPEN: // Floppy driver functions |
| 261 |
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r->d[0] = SonyOpen(r->a[0], r->a[1]); |
| 262 |
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break; |
| 263 |
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| 264 |
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case M68K_EMUL_OP_SONY_PRIME: |
| 265 |
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r->d[0] = SonyPrime(r->a[0], r->a[1]); |
| 266 |
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break; |
| 267 |
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| 268 |
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case M68K_EMUL_OP_SONY_CONTROL: |
| 269 |
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r->d[0] = SonyControl(r->a[0], r->a[1]); |
| 270 |
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break; |
| 271 |
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| 272 |
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case M68K_EMUL_OP_SONY_STATUS: |
| 273 |
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r->d[0] = SonyStatus(r->a[0], r->a[1]); |
| 274 |
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break; |
| 275 |
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| 276 |
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case M68K_EMUL_OP_DISK_OPEN: // Disk driver functions |
| 277 |
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r->d[0] = DiskOpen(r->a[0], r->a[1]); |
| 278 |
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break; |
| 279 |
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| 280 |
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case M68K_EMUL_OP_DISK_PRIME: |
| 281 |
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r->d[0] = DiskPrime(r->a[0], r->a[1]); |
| 282 |
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break; |
| 283 |
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| 284 |
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case M68K_EMUL_OP_DISK_CONTROL: |
| 285 |
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r->d[0] = DiskControl(r->a[0], r->a[1]); |
| 286 |
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break; |
| 287 |
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| 288 |
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case M68K_EMUL_OP_DISK_STATUS: |
| 289 |
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r->d[0] = DiskStatus(r->a[0], r->a[1]); |
| 290 |
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break; |
| 291 |
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| 292 |
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case M68K_EMUL_OP_CDROM_OPEN: // CD-ROM driver functions |
| 293 |
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r->d[0] = CDROMOpen(r->a[0], r->a[1]); |
| 294 |
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break; |
| 295 |
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| 296 |
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case M68K_EMUL_OP_CDROM_PRIME: |
| 297 |
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r->d[0] = CDROMPrime(r->a[0], r->a[1]); |
| 298 |
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break; |
| 299 |
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| 300 |
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case M68K_EMUL_OP_CDROM_CONTROL: |
| 301 |
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r->d[0] = CDROMControl(r->a[0], r->a[1]); |
| 302 |
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break; |
| 303 |
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| 304 |
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case M68K_EMUL_OP_CDROM_STATUS: |
| 305 |
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r->d[0] = CDROMStatus(r->a[0], r->a[1]); |
| 306 |
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break; |
| 307 |
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| 308 |
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case M68K_EMUL_OP_VIDEO_OPEN: // Video driver functions |
| 309 |
cebix |
1.5 |
r->d[0] = VideoDriverOpen(r->a[0], r->a[1]); |
| 310 |
cebix |
1.1 |
break; |
| 311 |
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| 312 |
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case M68K_EMUL_OP_VIDEO_CONTROL: |
| 313 |
cebix |
1.5 |
r->d[0] = VideoDriverControl(r->a[0], r->a[1]); |
| 314 |
cebix |
1.1 |
break; |
| 315 |
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| 316 |
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case M68K_EMUL_OP_VIDEO_STATUS: |
| 317 |
cebix |
1.5 |
r->d[0] = VideoDriverStatus(r->a[0], r->a[1]); |
| 318 |
cebix |
1.1 |
break; |
| 319 |
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| 320 |
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case M68K_EMUL_OP_SERIAL_OPEN: // Serial driver functions |
| 321 |
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r->d[0] = SerialOpen(r->a[0], r->a[1], r->d[0]); |
| 322 |
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break; |
| 323 |
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| 324 |
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case M68K_EMUL_OP_SERIAL_PRIME: |
| 325 |
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r->d[0] = SerialPrime(r->a[0], r->a[1], r->d[0]); |
| 326 |
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break; |
| 327 |
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| 328 |
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|
case M68K_EMUL_OP_SERIAL_CONTROL: |
| 329 |
|
|
r->d[0] = SerialControl(r->a[0], r->a[1], r->d[0]); |
| 330 |
|
|
break; |
| 331 |
|
|
|
| 332 |
|
|
case M68K_EMUL_OP_SERIAL_STATUS: |
| 333 |
|
|
r->d[0] = SerialStatus(r->a[0], r->a[1], r->d[0]); |
| 334 |
|
|
break; |
| 335 |
|
|
|
| 336 |
|
|
case M68K_EMUL_OP_SERIAL_CLOSE: |
| 337 |
|
|
r->d[0] = SerialClose(r->a[0], r->a[1], r->d[0]); |
| 338 |
|
|
break; |
| 339 |
|
|
|
| 340 |
|
|
case M68K_EMUL_OP_ETHER_OPEN: // Ethernet driver functions |
| 341 |
|
|
r->d[0] = EtherOpen(r->a[0], r->a[1]); |
| 342 |
|
|
break; |
| 343 |
|
|
|
| 344 |
|
|
case M68K_EMUL_OP_ETHER_CONTROL: |
| 345 |
|
|
r->d[0] = EtherControl(r->a[0], r->a[1]); |
| 346 |
|
|
break; |
| 347 |
|
|
|
| 348 |
|
|
case M68K_EMUL_OP_ETHER_READ_PACKET: |
| 349 |
|
|
EtherReadPacket((uint8 **)&r->a[0], r->a[3], r->d[3], r->d[1]); |
| 350 |
|
|
break; |
| 351 |
|
|
|
| 352 |
|
|
case M68K_EMUL_OP_SCSI_DISPATCH: { // SCSIDispatch() replacement |
| 353 |
|
|
uint32 ret = ReadMacInt32(r->a[7]); // Get return address |
| 354 |
|
|
uint16 sel = ReadMacInt16(r->a[7] + 4); // Get selector |
| 355 |
|
|
r->a[7] += 6; |
| 356 |
|
|
int stack = 0; |
| 357 |
|
|
switch (sel) { |
| 358 |
|
|
case 0: // SCSIReset |
| 359 |
|
|
WriteMacInt16(r->a[7], SCSIReset()); |
| 360 |
|
|
stack = 0; |
| 361 |
|
|
break; |
| 362 |
|
|
case 1: // SCSIGet |
| 363 |
|
|
WriteMacInt16(r->a[7], SCSIGet()); |
| 364 |
|
|
stack = 0; |
| 365 |
|
|
break; |
| 366 |
|
|
case 2: // SCSISelect |
| 367 |
|
|
case 11: // SCSISelAtn |
| 368 |
|
|
WriteMacInt16(r->a[7] + 2, SCSISelect(ReadMacInt16(r->a[7]) & 0xff)); |
| 369 |
|
|
stack = 2; |
| 370 |
|
|
break; |
| 371 |
|
|
case 3: // SCSICmd |
| 372 |
|
|
WriteMacInt16(r->a[7] + 6, SCSICmd(ReadMacInt16(r->a[7]), Mac2HostAddr(ReadMacInt32(r->a[7] + 2)))); |
| 373 |
|
|
stack = 6; |
| 374 |
|
|
break; |
| 375 |
|
|
case 4: // SCSIComplete |
| 376 |
|
|
WriteMacInt16(r->a[7] + 12, SCSIComplete(ReadMacInt32(r->a[7]), ReadMacInt32(r->a[7] + 4), ReadMacInt32(r->a[7] + 8))); |
| 377 |
|
|
stack = 12; |
| 378 |
|
|
break; |
| 379 |
|
|
case 5: // SCSIRead |
| 380 |
|
|
case 8: // SCSIRBlind |
| 381 |
|
|
WriteMacInt16(r->a[7] + 4, SCSIRead(ReadMacInt32(r->a[7]))); |
| 382 |
|
|
stack = 4; |
| 383 |
|
|
break; |
| 384 |
|
|
case 6: // SCSIWrite |
| 385 |
|
|
case 9: // SCSIWBlind |
| 386 |
|
|
WriteMacInt16(r->a[7] + 4, SCSIWrite(ReadMacInt32(r->a[7]))); |
| 387 |
|
|
stack = 4; |
| 388 |
|
|
break; |
| 389 |
|
|
case 10: // SCSIStat |
| 390 |
|
|
WriteMacInt16(r->a[7], SCSIStat()); |
| 391 |
|
|
stack = 0; |
| 392 |
|
|
break; |
| 393 |
|
|
case 12: // SCSIMsgIn |
| 394 |
|
|
WriteMacInt16(r->a[7] + 4, 0); |
| 395 |
|
|
stack = 4; |
| 396 |
|
|
break; |
| 397 |
|
|
case 13: // SCSIMsgOut |
| 398 |
|
|
WriteMacInt16(r->a[7] + 2, 0); |
| 399 |
|
|
stack = 2; |
| 400 |
|
|
break; |
| 401 |
|
|
case 14: // SCSIMgrBusy |
| 402 |
|
|
WriteMacInt16(r->a[7], SCSIMgrBusy()); |
| 403 |
|
|
stack = 0; |
| 404 |
|
|
break; |
| 405 |
|
|
default: |
| 406 |
|
|
printf("FATAL: SCSIDispatch(%d): illegal selector\n", sel); |
| 407 |
|
|
QuitEmulator(); |
| 408 |
|
|
break; |
| 409 |
|
|
} |
| 410 |
|
|
r->a[0] = ret; // "rtd" emulation, a0 = return address, a1 = new stack pointer |
| 411 |
|
|
r->a[1] = r->a[7] + stack; |
| 412 |
|
|
break; |
| 413 |
|
|
} |
| 414 |
|
|
|
| 415 |
|
|
case M68K_EMUL_OP_MEMORY_DISPATCH: { // MemoryDispatch() replacement routine |
| 416 |
|
|
int16 sel = r->d[0]; |
| 417 |
|
|
D(bug("MemoryDispatch(%d)\n", sel)); |
| 418 |
|
|
switch (sel) { |
| 419 |
|
|
case -6: // GetLogicalRAMSize |
| 420 |
|
|
r->d[0] = RAMSize; |
| 421 |
|
|
break; |
| 422 |
|
|
case -3: |
| 423 |
|
|
r->d[0] = 0x1000; |
| 424 |
|
|
break; |
| 425 |
|
|
case 0: // HoldMemory |
| 426 |
|
|
case 1: // UnholdMemory |
| 427 |
|
|
case 2: // LockMemory |
| 428 |
|
|
case 3: // UnlockMemory |
| 429 |
|
|
case 4: // LockMemoryContiguous |
| 430 |
|
|
case 6: // ProtectMemory |
| 431 |
|
|
case 7: // UnprotectMemory |
| 432 |
|
|
r->d[0] = 0; |
| 433 |
|
|
break; |
| 434 |
|
|
default: |
| 435 |
|
|
printf("FATAL: MemoryDispatch(%d): illegal selector\n", sel); |
| 436 |
|
|
r->d[0] = (uint32)-502; |
| 437 |
|
|
break; |
| 438 |
|
|
} |
| 439 |
|
|
break; |
| 440 |
|
|
} |
| 441 |
|
|
|
| 442 |
|
|
case M68K_EMUL_OP_IRQ: // Level 1 interrupt |
| 443 |
|
|
r->d[0] = 0; |
| 444 |
|
|
if (InterruptFlags & INTFLAG_60HZ) { |
| 445 |
|
|
ClearInterruptFlag(INTFLAG_60HZ); |
| 446 |
|
|
if (HasMacStarted()) { |
| 447 |
|
|
|
| 448 |
cebix |
1.3 |
// Mac has started, execute all 60Hz interrupt functions |
| 449 |
cebix |
1.1 |
ADBInterrupt(); |
| 450 |
|
|
TimerInterrupt(); |
| 451 |
|
|
VideoInterrupt(); |
| 452 |
cebix |
1.3 |
SonyInterrupt(); |
| 453 |
|
|
DiskInterrupt(); |
| 454 |
|
|
CDROMInterrupt(); |
| 455 |
cebix |
1.1 |
|
| 456 |
|
|
// Call DoVBLTask(0) |
| 457 |
|
|
if (ROMVersion == ROM_VERSION_32) { |
| 458 |
|
|
M68kRegisters r2; |
| 459 |
|
|
r2.d[0] = 0; |
| 460 |
|
|
Execute68kTrap(0xa072, &r2); |
| 461 |
|
|
} |
| 462 |
|
|
|
| 463 |
|
|
r->d[0] = 1; // Flag: 68k interrupt routine executes VBLTasks etc. |
| 464 |
|
|
} |
| 465 |
|
|
} |
| 466 |
|
|
if (InterruptFlags & INTFLAG_SERIAL) { |
| 467 |
|
|
ClearInterruptFlag(INTFLAG_SERIAL); |
| 468 |
|
|
SerialInterrupt(); |
| 469 |
|
|
} |
| 470 |
|
|
if (InterruptFlags & INTFLAG_ETHER) { |
| 471 |
|
|
ClearInterruptFlag(INTFLAG_ETHER); |
| 472 |
|
|
EtherInterrupt(); |
| 473 |
|
|
} |
| 474 |
|
|
if (InterruptFlags & INTFLAG_AUDIO) { |
| 475 |
|
|
ClearInterruptFlag(INTFLAG_AUDIO); |
| 476 |
|
|
AudioInterrupt(); |
| 477 |
|
|
} |
| 478 |
|
|
break; |
| 479 |
|
|
|
| 480 |
|
|
case M68K_EMUL_OP_PUT_SCRAP: { // PutScrap() patch |
| 481 |
|
|
void *scrap = Mac2HostAddr(ReadMacInt32(r->a[7] + 4)); |
| 482 |
|
|
uint32 type = ReadMacInt32(r->a[7] + 8); |
| 483 |
|
|
int32 length = ReadMacInt32(r->a[7] + 12); |
| 484 |
|
|
PutScrap(type, scrap, length); |
| 485 |
|
|
break; |
| 486 |
|
|
} |
| 487 |
|
|
|
| 488 |
|
|
case M68K_EMUL_OP_CHECKLOAD: { // vCheckLoad() patch (resource loader) |
| 489 |
|
|
uint32 type = r->d[1]; |
| 490 |
|
|
int16 id = ReadMacInt16(r->a[2]); |
| 491 |
|
|
if (r->a[0] == 0) |
| 492 |
|
|
break; |
| 493 |
|
|
uint32 adr = ReadMacInt32(r->a[0]); |
| 494 |
|
|
if (adr == 0) |
| 495 |
|
|
break; |
| 496 |
|
|
uint8 *p = Mac2HostAddr(adr); |
| 497 |
|
|
uint32 size = ReadMacInt32(adr - 8) & 0xffffff; |
| 498 |
|
|
CheckLoad(type, id, p, size); |
| 499 |
|
|
break; |
| 500 |
|
|
} |
| 501 |
|
|
|
| 502 |
|
|
case M68K_EMUL_OP_AUDIO: // Audio component dispatch function |
| 503 |
|
|
r->d[0] = AudioDispatch(r->a[3], r->a[4]); |
| 504 |
cebix |
1.4 |
break; |
| 505 |
|
|
|
| 506 |
cebix |
1.6 |
#if SUPPORTS_EXTFS |
| 507 |
cebix |
1.4 |
case M68K_EMUL_OP_EXTFS_COMM: // External file system routines |
| 508 |
|
|
WriteMacInt16(r->a[7] + 14, ExtFSComm(ReadMacInt16(r->a[7] + 12), ReadMacInt32(r->a[7] + 8), ReadMacInt32(r->a[7] + 4))); |
| 509 |
|
|
break; |
| 510 |
|
|
|
| 511 |
|
|
case M68K_EMUL_OP_EXTFS_HFS: |
| 512 |
|
|
WriteMacInt16(r->a[7] + 20, ExtFSHFS(ReadMacInt32(r->a[7] + 16), ReadMacInt16(r->a[7] + 14), ReadMacInt32(r->a[7] + 10), ReadMacInt32(r->a[7] + 6), ReadMacInt16(r->a[7] + 4))); |
| 513 |
cebix |
1.1 |
break; |
| 514 |
cebix |
1.6 |
#endif |
| 515 |
cebix |
1.1 |
|
| 516 |
cebix |
1.7 |
case M68K_EMUL_OP_BLOCK_MOVE: // BlockMove() replacement |
| 517 |
|
|
memmove(Mac2HostAddr(r->a[1]), Mac2HostAddr(r->a[0]), r->d[0]); |
| 518 |
|
|
break; |
| 519 |
|
|
|
| 520 |
cebix |
1.1 |
default: |
| 521 |
|
|
printf("FATAL: EMUL_OP called with bogus opcode %08x\n", opcode); |
| 522 |
|
|
printf("d0 %08lx d1 %08lx d2 %08lx d3 %08lx\n" |
| 523 |
|
|
"d4 %08lx d5 %08lx d6 %08lx d7 %08lx\n" |
| 524 |
|
|
"a0 %08lx a1 %08lx a2 %08lx a3 %08lx\n" |
| 525 |
|
|
"a4 %08lx a5 %08lx a6 %08lx a7 %08lx\n" |
| 526 |
|
|
"sr %04x\n", |
| 527 |
|
|
r->d[0], r->d[1], r->d[2], r->d[3], r->d[4], r->d[5], r->d[6], r->d[7], |
| 528 |
|
|
r->a[0], r->a[1], r->a[2], r->a[3], r->a[4], r->a[5], r->a[6], r->a[7], |
| 529 |
|
|
r->sr); |
| 530 |
|
|
QuitEmulator(); |
| 531 |
|
|
break; |
| 532 |
|
|
} |
| 533 |
|
|
} |
