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Diffstat (limited to 'trunk/src/emu/cpu/v60/am3.c')
-rw-r--r--trunk/src/emu/cpu/v60/am3.c887
1 files changed, 887 insertions, 0 deletions
diff --git a/trunk/src/emu/cpu/v60/am3.c b/trunk/src/emu/cpu/v60/am3.c
new file mode 100644
index 00000000000..ca69f092b62
--- /dev/null
+++ b/trunk/src/emu/cpu/v60/am3.c
@@ -0,0 +1,887 @@
+
+// AM3 Functions (for ReadAM)
+// **************************
+
+static UINT32 am3Register(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ SETREG8(cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalb);
+ break;
+ case 1:
+ SETREG16(cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->reg[cpustate->modval & 0x1F] = cpustate->modwritevalw;
+ break;
+ }
+
+ return 1;
+}
+
+static UINT32 am3RegisterIndirect(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalw);
+ break;
+ }
+
+ return 1;
+}
+
+static UINT32 am3RegisterIndirectIndexed(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->reg[cpustate->modval2 & 0x1F] + cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->reg[cpustate->modval2 & 0x1F] + cpustate->reg[cpustate->modval & 0x1F] * 2, cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->reg[cpustate->modval2 & 0x1F] + cpustate->reg[cpustate->modval & 0x1F] * 4, cpustate->modwritevalw);
+ break;
+ }
+
+ return 2;
+}
+
+static UINT32 am3Autoincrement(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalb);
+ cpustate->reg[cpustate->modval & 0x1F] += 1;
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalh);
+ cpustate->reg[cpustate->modval & 0x1F] += 2;
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalw);
+ cpustate->reg[cpustate->modval & 0x1F] += 4;
+ break;
+ }
+
+ return 1;
+}
+
+static UINT32 am3Autodecrement(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->reg[cpustate->modval & 0x1F] -= 1;
+ cpustate->program->write_byte(cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->reg[cpustate->modval & 0x1F] -= 2;
+ cpustate->program->write_word_unaligned(cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->reg[cpustate->modval & 0x1F] -= 4;
+ cpustate->program->write_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalw);
+ break;
+ }
+
+ return 1;
+}
+
+static UINT32 am3Displacement8(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->reg[cpustate->modval & 0x1F] + (INT8)OpRead8(cpustate, cpustate->modadd + 1), cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->reg[cpustate->modval & 0x1F] + (INT8)OpRead8(cpustate, cpustate->modadd + 1), cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F] + (INT8)OpRead8(cpustate, cpustate->modadd + 1), cpustate->modwritevalw);
+ break;
+ }
+
+ return 2;
+}
+
+static UINT32 am3Displacement16(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->reg[cpustate->modval & 0x1F] + (INT16)OpRead16(cpustate, cpustate->modadd + 1), cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->reg[cpustate->modval & 0x1F] + (INT16)OpRead16(cpustate, cpustate->modadd + 1), cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F] + (INT16)OpRead16(cpustate, cpustate->modadd + 1), cpustate->modwritevalw);
+ break;
+ }
+
+ return 3;
+}
+
+static UINT32 am3Displacement32(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->reg[cpustate->modval & 0x1F] + OpRead32(cpustate, cpustate->modadd + 1), cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->reg[cpustate->modval & 0x1F] + OpRead32(cpustate, cpustate->modadd + 1), cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F] + OpRead32(cpustate, cpustate->modadd + 1), cpustate->modwritevalw);
+ break;
+ }
+
+ return 5;
+}
+
+
+static UINT32 am3DisplacementIndexed8(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->reg[cpustate->modval2 & 0x1F] + (INT8)OpRead8(cpustate, cpustate->modadd + 2) + cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->reg[cpustate->modval2 & 0x1F] + (INT8)OpRead8(cpustate, cpustate->modadd + 2) + cpustate->reg[cpustate->modval & 0x1F] * 2, cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->reg[cpustate->modval2 & 0x1F] + (INT8)OpRead8(cpustate, cpustate->modadd + 2) + cpustate->reg[cpustate->modval & 0x1F] * 4, cpustate->modwritevalw);
+ break;
+ }
+
+ return 3;
+}
+
+static UINT32 am3DisplacementIndexed16(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->reg[cpustate->modval2 & 0x1F] + (INT16)OpRead16(cpustate, cpustate->modadd + 2) + cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->reg[cpustate->modval2 & 0x1F] + (INT16)OpRead16(cpustate, cpustate->modadd + 2) + cpustate->reg[cpustate->modval & 0x1F] * 2, cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->reg[cpustate->modval2 & 0x1F] + (INT16)OpRead16(cpustate, cpustate->modadd + 2) + cpustate->reg[cpustate->modval & 0x1F] * 4, cpustate->modwritevalw);
+ break;
+ }
+
+ return 4;
+}
+
+static UINT32 am3DisplacementIndexed32(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->reg[cpustate->modval2 & 0x1F] + OpRead32(cpustate, cpustate->modadd + 2) + cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->reg[cpustate->modval2 & 0x1F] + OpRead32(cpustate, cpustate->modadd + 2) + cpustate->reg[cpustate->modval & 0x1F] * 2, cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->reg[cpustate->modval2 & 0x1F] + OpRead32(cpustate, cpustate->modadd + 2) + cpustate->reg[cpustate->modval & 0x1F] * 4, cpustate->modwritevalw);
+ break;
+ }
+
+ return 6;
+}
+
+
+static UINT32 am3PCDisplacement8(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->PC + (INT8)OpRead8(cpustate, cpustate->modadd + 1), cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->PC + (INT8)OpRead8(cpustate, cpustate->modadd + 1), cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->PC + (INT8)OpRead8(cpustate, cpustate->modadd + 1), cpustate->modwritevalw);
+ break;
+ }
+
+ return 2;
+}
+
+static UINT32 am3PCDisplacement16(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->PC + (INT16)OpRead16(cpustate, cpustate->modadd + 1), cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->PC + (INT16)OpRead16(cpustate, cpustate->modadd + 1), cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->PC + (INT16)OpRead16(cpustate, cpustate->modadd + 1), cpustate->modwritevalw);
+ break;
+ }
+
+ return 3;
+}
+
+static UINT32 am3PCDisplacement32(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->PC + OpRead32(cpustate, cpustate->modadd + 1), cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->PC + OpRead32(cpustate, cpustate->modadd + 1), cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->PC + OpRead32(cpustate, cpustate->modadd + 1), cpustate->modwritevalw);
+ break;
+ }
+
+ return 5;
+}
+
+static UINT32 am3PCDisplacementIndexed8(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->PC + (INT8)OpRead8(cpustate, cpustate->modadd + 2) + cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->PC + (INT8)OpRead8(cpustate, cpustate->modadd + 2) + cpustate->reg[cpustate->modval & 0x1F] * 2, cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->PC + (INT8)OpRead8(cpustate, cpustate->modadd + 2) + cpustate->reg[cpustate->modval & 0x1F] * 4, cpustate->modwritevalw);
+ break;
+ }
+
+ return 3;
+}
+
+static UINT32 am3PCDisplacementIndexed16(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->PC + (INT16)OpRead16(cpustate, cpustate->modadd + 2) + cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->PC + (INT16)OpRead16(cpustate, cpustate->modadd + 2) + cpustate->reg[cpustate->modval & 0x1F] * 2, cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->PC + (INT16)OpRead16(cpustate, cpustate->modadd + 2) + cpustate->reg[cpustate->modval & 0x1F] * 4, cpustate->modwritevalw);
+ break;
+ }
+
+ return 4;
+}
+
+static UINT32 am3PCDisplacementIndexed32(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->PC + OpRead32(cpustate, cpustate->modadd + 2) + cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->PC + OpRead32(cpustate, cpustate->modadd + 2) + cpustate->reg[cpustate->modval & 0x1F] * 2, cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->PC + OpRead32(cpustate, cpustate->modadd + 2) + cpustate->reg[cpustate->modval & 0x1F] * 4, cpustate->modwritevalw);
+ break;
+ }
+
+ return 6;
+}
+
+static UINT32 am3DisplacementIndirect8(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F] + (INT8)OpRead8(cpustate, cpustate->modadd + 1)), cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F] + (INT8)OpRead8(cpustate, cpustate->modadd + 1)), cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F] + (INT8)OpRead8(cpustate, cpustate->modadd + 1)), cpustate->modwritevalw);
+ break;
+ }
+
+ return 2;
+}
+
+static UINT32 am3DisplacementIndirect16(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F] + (INT16)OpRead16(cpustate, cpustate->modadd + 1)), cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F] + (INT16)OpRead16(cpustate, cpustate->modadd + 1)), cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F] + (INT16)OpRead16(cpustate, cpustate->modadd + 1)), cpustate->modwritevalw);
+ break;
+ }
+
+ return 3;
+}
+
+static UINT32 am3DisplacementIndirect32(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F] + OpRead32(cpustate, cpustate->modadd + 1)), cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F] + OpRead32(cpustate, cpustate->modadd + 1)), cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F] + OpRead32(cpustate, cpustate->modadd + 1)), cpustate->modwritevalw);
+ break;
+ }
+
+ return 5;
+}
+
+
+static UINT32 am3DisplacementIndirectIndexed8(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval2 & 0x1F] + (INT8)OpRead8(cpustate, cpustate->modadd + 2)) + cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval2 & 0x1F] + (INT8)OpRead8(cpustate, cpustate->modadd + 2)) + cpustate->reg[cpustate->modval & 0x1F] * 2, cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval2 & 0x1F] + (INT8)OpRead8(cpustate, cpustate->modadd + 2)) + cpustate->reg[cpustate->modval & 0x1F] * 4, cpustate->modwritevalw);
+ break;
+ }
+
+ return 3;
+}
+
+static UINT32 am3DisplacementIndirectIndexed16(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval2 & 0x1F] + (INT16)OpRead16(cpustate, cpustate->modadd + 2)) + cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval2 & 0x1F] + (INT16)OpRead16(cpustate, cpustate->modadd + 2)) + cpustate->reg[cpustate->modval & 0x1F] * 2, cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval2 & 0x1F] + (INT16)OpRead16(cpustate, cpustate->modadd + 2)) + cpustate->reg[cpustate->modval & 0x1F] * 4, cpustate->modwritevalw);
+ break;
+ }
+
+ return 4;
+}
+
+static UINT32 am3DisplacementIndirectIndexed32(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval2 & 0x1F] + OpRead32(cpustate, cpustate->modadd + 2)) + cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval2 & 0x1F] + OpRead32(cpustate, cpustate->modadd + 2)) + cpustate->reg[cpustate->modval & 0x1F] * 2, cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval2 & 0x1F] + OpRead32(cpustate, cpustate->modadd + 2)) + cpustate->reg[cpustate->modval & 0x1F] * 4, cpustate->modwritevalw);
+ break;
+ }
+
+ return 6;
+}
+
+static UINT32 am3PCDisplacementIndirect8(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->program->read_dword_unaligned(cpustate->PC + (INT8)OpRead8(cpustate, cpustate->modadd + 1)), cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->program->read_dword_unaligned(cpustate->PC + (INT8)OpRead8(cpustate, cpustate->modadd + 1)), cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->program->read_dword_unaligned(cpustate->PC + (INT8)OpRead8(cpustate, cpustate->modadd + 1)), cpustate->modwritevalw);
+ break;
+ }
+
+ return 2;
+}
+
+static UINT32 am3PCDisplacementIndirect16(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->program->read_dword_unaligned(cpustate->PC + (INT16)OpRead16(cpustate, cpustate->modadd + 1)), cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->program->read_dword_unaligned(cpustate->PC + (INT16)OpRead16(cpustate, cpustate->modadd + 1)), cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->program->read_dword_unaligned(cpustate->PC + (INT16)OpRead16(cpustate, cpustate->modadd + 1)), cpustate->modwritevalw);
+ break;
+ }
+
+ return 3;
+}
+
+static UINT32 am3PCDisplacementIndirect32(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->program->read_dword_unaligned(cpustate->PC + OpRead32(cpustate, cpustate->modadd + 1)), cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->program->read_dword_unaligned(cpustate->PC + OpRead32(cpustate, cpustate->modadd + 1)), cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->program->read_dword_unaligned(cpustate->PC + OpRead32(cpustate, cpustate->modadd + 1)), cpustate->modwritevalw);
+ break;
+ }
+
+ return 5;
+}
+
+
+static UINT32 am3PCDisplacementIndirectIndexed8(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->program->read_dword_unaligned(cpustate->PC + (INT8)OpRead8(cpustate, cpustate->modadd + 2)) + cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->program->read_dword_unaligned(cpustate->PC + (INT8)OpRead8(cpustate, cpustate->modadd + 2)) + cpustate->reg[cpustate->modval & 0x1F] * 2, cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->program->read_dword_unaligned(cpustate->PC + (INT8)OpRead8(cpustate, cpustate->modadd + 2)) + cpustate->reg[cpustate->modval & 0x1F] * 4, cpustate->modwritevalw);
+ break;
+ }
+
+ return 3;
+}
+
+static UINT32 am3PCDisplacementIndirectIndexed16(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->program->read_dword_unaligned(cpustate->PC + (INT16)OpRead16(cpustate, cpustate->modadd + 2)) + cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->program->read_dword_unaligned(cpustate->PC + (INT16)OpRead16(cpustate, cpustate->modadd + 2)) + cpustate->reg[cpustate->modval & 0x1F] * 2, cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->program->read_dword_unaligned(cpustate->PC + (INT16)OpRead16(cpustate, cpustate->modadd + 2)) + cpustate->reg[cpustate->modval & 0x1F] * 4, cpustate->modwritevalw);
+ break;
+ }
+
+ return 4;
+}
+
+static UINT32 am3PCDisplacementIndirectIndexed32(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->program->read_dword_unaligned(cpustate->PC + OpRead32(cpustate, cpustate->modadd + 2)) + cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->program->read_dword_unaligned(cpustate->PC + OpRead32(cpustate, cpustate->modadd + 2)) + cpustate->reg[cpustate->modval & 0x1F] * 2, cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->program->read_dword_unaligned(cpustate->PC + OpRead32(cpustate, cpustate->modadd + 2)) + cpustate->reg[cpustate->modval & 0x1F] * 4, cpustate->modwritevalw);
+ break;
+ }
+
+ return 6;
+}
+
+
+static UINT32 am3DoubleDisplacement8(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F] + (INT8)OpRead8(cpustate, cpustate->modadd + 1)) + (INT8)OpRead8(cpustate, cpustate->modadd + 2), cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F] + (INT8)OpRead8(cpustate, cpustate->modadd + 1)) + (INT8)OpRead8(cpustate, cpustate->modadd + 2), cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F] + (INT8)OpRead8(cpustate, cpustate->modadd + 1)) + (INT8)OpRead8(cpustate, cpustate->modadd + 2), cpustate->modwritevalw);
+ break;
+ }
+
+ return 3;
+}
+
+static UINT32 am3DoubleDisplacement16(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F] + (INT16)OpRead16(cpustate, cpustate->modadd + 1)) + (INT16)OpRead16(cpustate, cpustate->modadd + 3), cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F] + (INT16)OpRead16(cpustate, cpustate->modadd + 1)) + (INT16)OpRead16(cpustate, cpustate->modadd + 3), cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F] + (INT16)OpRead16(cpustate, cpustate->modadd + 1)) + (INT16)OpRead16(cpustate, cpustate->modadd + 3), cpustate->modwritevalw);
+ break;
+ }
+
+ return 5;
+}
+
+static UINT32 am3DoubleDisplacement32(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F] + OpRead32(cpustate, cpustate->modadd + 1)) + OpRead32(cpustate, cpustate->modadd + 5), cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F] + OpRead32(cpustate, cpustate->modadd + 1)) + OpRead32(cpustate, cpustate->modadd + 5), cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->program->read_dword_unaligned(cpustate->reg[cpustate->modval & 0x1F] + OpRead32(cpustate, cpustate->modadd + 1)) + OpRead32(cpustate, cpustate->modadd + 5), cpustate->modwritevalw);
+ break;
+ }
+
+ return 9;
+}
+
+
+static UINT32 am3PCDoubleDisplacement8(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->program->read_dword_unaligned(cpustate->PC + (INT8)OpRead8(cpustate, cpustate->modadd + 1)) + (INT8)OpRead8(cpustate, cpustate->modadd + 2), cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->program->read_dword_unaligned(cpustate->PC + (INT8)OpRead8(cpustate, cpustate->modadd + 1)) + (INT8)OpRead8(cpustate, cpustate->modadd + 2), cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->program->read_dword_unaligned(cpustate->PC + (INT8)OpRead8(cpustate, cpustate->modadd + 1)) + (INT8)OpRead8(cpustate, cpustate->modadd + 2), cpustate->modwritevalw);
+ break;
+ }
+
+ return 3;
+}
+
+static UINT32 am3PCDoubleDisplacement16(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->program->read_dword_unaligned(cpustate->PC + (INT16)OpRead16(cpustate, cpustate->modadd + 1)) + (INT16)OpRead16(cpustate, cpustate->modadd + 3), cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->program->read_dword_unaligned(cpustate->PC + (INT16)OpRead16(cpustate, cpustate->modadd + 1)) + (INT16)OpRead16(cpustate, cpustate->modadd + 3), cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->program->read_dword_unaligned(cpustate->PC + (INT16)OpRead16(cpustate, cpustate->modadd + 1)) + (INT16)OpRead16(cpustate, cpustate->modadd + 3), cpustate->modwritevalw);
+ break;
+ }
+
+ return 5;
+}
+
+static UINT32 am3PCDoubleDisplacement32(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->program->read_dword_unaligned(cpustate->PC + OpRead32(cpustate, cpustate->modadd + 1)) + OpRead32(cpustate, cpustate->modadd + 5), cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->program->read_dword_unaligned(cpustate->PC + OpRead32(cpustate, cpustate->modadd + 1)) + OpRead32(cpustate, cpustate->modadd + 5), cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->program->read_dword_unaligned(cpustate->PC + OpRead32(cpustate, cpustate->modadd + 1)) + OpRead32(cpustate, cpustate->modadd + 5), cpustate->modwritevalw);
+ break;
+ }
+
+ return 9;
+}
+
+static UINT32 am3DirectAddress(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(OpRead32(cpustate, cpustate->modadd + 1), cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(OpRead32(cpustate, cpustate->modadd + 1), cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(OpRead32(cpustate, cpustate->modadd + 1), cpustate->modwritevalw);
+ break;
+ }
+
+ return 5;
+}
+
+static UINT32 am3DirectAddressIndexed(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(OpRead32(cpustate, cpustate->modadd + 2) + cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(OpRead32(cpustate, cpustate->modadd + 2) + cpustate->reg[cpustate->modval & 0x1F] * 2, cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(OpRead32(cpustate, cpustate->modadd + 2) + cpustate->reg[cpustate->modval & 0x1F] * 4, cpustate->modwritevalw);
+ break;
+ }
+
+ return 6;
+}
+
+static UINT32 am3DirectAddressDeferred(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->program->read_dword_unaligned(OpRead32(cpustate, cpustate->modadd + 1)), cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->program->read_dword_unaligned(OpRead32(cpustate, cpustate->modadd + 1)), cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->program->read_dword_unaligned(OpRead32(cpustate, cpustate->modadd + 1)), cpustate->modwritevalw);
+ break;
+ }
+
+ return 5;
+}
+
+static UINT32 am3DirectAddressDeferredIndexed(v60_state *cpustate)
+{
+ switch (cpustate->moddim)
+ {
+ case 0:
+ cpustate->program->write_byte(cpustate->program->read_dword_unaligned(OpRead32(cpustate, cpustate->modadd + 2)) + cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalb);
+ break;
+ case 1:
+ cpustate->program->write_word_unaligned(cpustate->program->read_dword_unaligned(OpRead32(cpustate, cpustate->modadd + 2)) + cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalh);
+ break;
+ case 2:
+ cpustate->program->write_dword_unaligned(cpustate->program->read_dword_unaligned(OpRead32(cpustate, cpustate->modadd + 2)) + cpustate->reg[cpustate->modval & 0x1F], cpustate->modwritevalw);
+ break;
+ }
+
+ return 6;
+}
+
+static UINT32 am3Immediate(v60_state *cpustate)
+{
+ fatalerror("CPU - AM3 - IMM (cpustate->PC=%06x)", cpustate->PC);
+ return 0; /* never reached, fatalerror won't return */
+}
+
+static UINT32 am3ImmediateQuick(v60_state *cpustate)
+{
+ fatalerror("CPU - AM3 - IMMQ (cpustate->PC=%06x)", cpustate->PC);
+ return 0; /* never reached, fatalerror won't return */
+}
+
+
+
+// AM3 Tables (for ReadAMAddress)
+// ******************************
+
+static UINT32 am3Error1(v60_state *cpustate)
+{
+ fatalerror("CPU - AM3 - 1 (cpustate->PC=%06x)", cpustate->PC);
+ return 0; /* never reached, fatalerror won't return */
+}
+
+static UINT32 am3Error2(v60_state *cpustate)
+{
+ fatalerror("CPU - AM3 - 2 (cpustate->PC=%06x)", cpustate->PC);
+ return 0; /* never reached, fatalerror won't return */
+}
+
+#ifdef UNUSED_FUNCTION
+static UINT32 am3Error3(v60_state *cpustate)
+{
+ fatalerror("CPU - AM3 - 3 (cpustate->PC=%06x)", cpustate->PC);
+ return 0; /* never reached, fatalerror won't return */
+}
+#endif
+
+static UINT32 am3Error4(v60_state *cpustate)
+{
+ fatalerror("CPU - AM3 - 4 (cpustate->PC=%06x)", cpustate->PC);
+ return 0; /* never reached, fatalerror won't return */
+}
+
+static UINT32 am3Error5(v60_state *cpustate)
+{
+ fatalerror("CPU - AM3 - 5 (cpustate->PC=%06x)", cpustate->PC);
+ return 0; /* never reached, fatalerror won't return */
+}
+
+static UINT32 (*const AMTable3_G7a[16])(v60_state *) =
+{
+ am3PCDisplacementIndexed8,
+ am3PCDisplacementIndexed16,
+ am3PCDisplacementIndexed32,
+ am3DirectAddressIndexed,
+ am3Error5,
+ am3Error5,
+ am3Error5,
+ am3Error5,
+ am3PCDisplacementIndirectIndexed8,
+ am3PCDisplacementIndirectIndexed16,
+ am3PCDisplacementIndirectIndexed32,
+ am3DirectAddressDeferredIndexed,
+ am3Error5,
+ am3Error5,
+ am3Error5,
+ am3Error5
+};
+
+static UINT32 am3Group7a(v60_state *cpustate)
+{
+ if (!(cpustate->modval2 & 0x10))
+ return am3Error4(cpustate);
+
+ return AMTable3_G7a[cpustate->modval2 & 0xF](cpustate);
+}
+
+static UINT32 (*const AMTable3_G7[32])(v60_state *) =
+{
+ am3ImmediateQuick,
+ am3ImmediateQuick,
+ am3ImmediateQuick,
+ am3ImmediateQuick,
+ am3ImmediateQuick,
+ am3ImmediateQuick,
+ am3ImmediateQuick,
+ am3ImmediateQuick,
+ am3ImmediateQuick,
+ am3ImmediateQuick,
+ am3ImmediateQuick,
+ am3ImmediateQuick,
+ am3ImmediateQuick,
+ am3ImmediateQuick,
+ am3ImmediateQuick,
+ am3ImmediateQuick,
+ am3PCDisplacement8,
+ am3PCDisplacement16,
+ am3PCDisplacement32,
+ am3DirectAddress,
+ am3Immediate,
+ am3Error2,
+ am3Error2,
+ am3Error2,
+ am3PCDisplacementIndirect8,
+ am3PCDisplacementIndirect16,
+ am3PCDisplacementIndirect32,
+ am3DirectAddressDeferred,
+ am3PCDoubleDisplacement8,
+ am3PCDoubleDisplacement16,
+ am3PCDoubleDisplacement32,
+ am3Error2
+};
+
+static UINT32 (*const AMTable3_G6[8])(v60_state *) =
+{
+ am3DisplacementIndexed8,
+ am3DisplacementIndexed16,
+ am3DisplacementIndexed32,
+ am3RegisterIndirectIndexed,
+ am3DisplacementIndirectIndexed8,
+ am3DisplacementIndirectIndexed16,
+ am3DisplacementIndirectIndexed32,
+ am3Group7a
+};
+
+
+
+
+static UINT32 am3Group6(v60_state *cpustate)
+{
+ cpustate->modval2 = OpRead8(cpustate, cpustate->modadd + 1);
+ return AMTable3_G6[cpustate->modval2 >> 5](cpustate);
+}
+
+
+static UINT32 am3Group7(v60_state *cpustate)
+{
+ return AMTable3_G7[cpustate->modval & 0x1F](cpustate);
+}
+
+
+
+static UINT32 (*const AMTable3[2][8])(v60_state *) =
+{
+ {
+ am3Displacement8,
+ am3Displacement16,
+ am3Displacement32,
+ am3RegisterIndirect,
+ am3DisplacementIndirect8,
+ am3DisplacementIndirect16,
+ am3DisplacementIndirect32,
+ am3Group7
+ },
+
+ {
+ am3DoubleDisplacement8,
+ am3DoubleDisplacement16,
+ am3DoubleDisplacement32,
+ am3Register,
+ am3Autoincrement,
+ am3Autodecrement,
+ am3Group6,
+ am3Error1
+ }
+};
+
+
+