More COP400 fixes:

- fixed serial timer
- fixed clocks
- fixed COP410 RMB3, XAD instructions
- general cleanup
This commit is contained in:
Curt Coder 2008-04-02 14:36:50 +00:00
parent 9c0447a597
commit 12589d9abd
4 changed files with 221 additions and 253 deletions

View File

@ -33,9 +33,6 @@
#define skip R.skip
#define skipLBI R.skipLBI
#define READ_M RAM_R(B)
#define WRITE_M(VAL) RAM_W(B,VAL)
#define IN_G() IN(COP400_PORT_G)
#define IN_L() IN(COP400_PORT_L)
#define IN_SI() IN(COP400_PORT_SIO)
@ -55,7 +52,7 @@
static TIMER_CALLBACK(cop410_serial_tick)
{
int cpunum = param;
cpuintrf_push_context(cpunum);
if (BIT(EN, 0))
@ -69,11 +66,7 @@ static TIMER_CALLBACK(cop410_serial_tick)
if (R.last_si && !si)
{
SIO--;
if (SIO == 0)
{
SIO = 15;
}
SIO &= 0x0f;
}
R.last_si = si;
@ -148,7 +141,7 @@ INSTRUCTION(illegal)
/*
Mnemonic: ASC
Hex Code: 30
Binary: 0 0 1 1 0 0 0 0
@ -180,7 +173,7 @@ INSTRUCTION(asc)
/*
Mnemonic: ADD
Hex Code: 31
Binary: 0 0 1 1 0 0 0 1
@ -192,13 +185,13 @@ INSTRUCTION(asc)
INSTRUCTION(add)
{
A = (A + RAM_R(B)) & 0x0F;
A = (A + RAM_R(B)) & 0x0F;
}
/*
Mnemonic: AISC
Operand: y
Hex Code: 5-
Binary: 0 1 0 1 y3 y2 y1 y0
@ -227,7 +220,7 @@ INSTRUCTION(aisc)
/*
Mnemonic: CLRA
Hex Code: 00
Binary: 0 0 0 0 0 0 0 0
@ -245,7 +238,7 @@ INSTRUCTION(clra)
/*
Mnemonic: COMP
Hex Code: 40
Binary: 0 1 0 0 0 0 0 0
@ -263,7 +256,7 @@ INSTRUCTION(comp)
/*
Mnemonic: NOP
Hex Code: 44
Binary: 0 1 0 0 0 1 0 0
@ -279,7 +272,7 @@ INSTRUCTION(nop)
/*
Mnemonic: RC
Hex Code: 32
Binary: 0 0 1 1 0 0 1 0
@ -297,7 +290,7 @@ INSTRUCTION(rc)
/*
Mnemonic: SC
Hex Code: 22
Binary: 0 0 1 0 0 0 1 0
@ -315,19 +308,19 @@ INSTRUCTION(sc)
/*
Mnemonic: XOR
Hex Code: 02
Binary: 0 0 0 0 0 0 1 0
Data Flow: A ^ RAM(B) -> A
Description:
Description: Exclusive-OR RAM with A
*/
INSTRUCTION(xor)
{
A = RAM_R(B) ^ A;
A = A ^ RAM_R(B);
}
/* Transfer-of-Control Instructions */
@ -335,7 +328,7 @@ INSTRUCTION(xor)
/*
Mnemonic: JID
Hex Code: FF
Binary: 1 1 1 1 1 1 1 1
@ -347,14 +340,14 @@ INSTRUCTION(xor)
INSTRUCTION(jid)
{
UINT16 addr = (PC & 0x300) | (A << 4) | READ_M;
UINT16 addr = (PC & 0x300) | (A << 4) | RAM_R(B);
PC = (PC & 0x300) | ROM(addr);
}
/*
Mnemonic: JMP
Operand: a
Hex Code: 6- --
Binary: 0 1 1 0 0 0 a9 a8 a7 a6 a5 a4 a3 a2 a1 a0
@ -367,13 +360,15 @@ INSTRUCTION(jid)
INSTRUCTION(jmp)
{
PC = ((opcode & 0x03) << 8) | ROM(PC);
UINT16 a = ((opcode & 0x03) << 8) | ROM(PC);
PC = a;
}
/*
Mnemonic: JP
Operand: a
Hex Code: --
Binary: 1 a6 a5 a4 a3 a2 a1 a0
@ -392,30 +387,31 @@ INSTRUCTION(jmp)
INSTRUCTION(jp)
{
UINT8 op = ROM(prevPC);
UINT4 page = PC >> 6;
if (((PC & 0x3E0) >= 0x80) && ((PC & 0x3E0) < 0x100)) //JP pages 2,3
if (page == 2 || page == 3)
{
PC = (UINT16)((PC & 0x380) | (op & 0x7F));
UINT8 a = opcode & 0x7f;
PC = (PC & 0x380) | a;
}
else if ((opcode & 0xc0) == 0xc0)
{
UINT8 a = opcode & 0x3f;
PC = (PC & 0x3c0) | a;
}
else
{
if ((op & 0xC0) == 0xC0) //JP other pages
{
PC = (UINT16)((PC & 0x3C0) | (op & 0x3F));
}
else //JSRP
{
PUSH((UINT16)(PC));
PC = (UINT16)(0x80 | (op & 0x3F));
}
// JSRP
UINT8 a = opcode & 0x3f;
PUSH(PC + 1);
PC = 0x80 | a;
}
}
/*
Mnemonic: JSR
Operand: a
Hex Code: 6- --
Binary: 0 1 1 0 1 0 a9 a8 a7 a6 a5 a4 a3 a2 a1 a0
@ -427,21 +423,18 @@ INSTRUCTION(jp)
*/
INLINE void JSR(UINT8 a8)
INSTRUCTION(jsr)
{
PUSH(PC + 1);
PC = (a8 << 8) | ROM(PC);
}
UINT16 a = ((opcode & 0x03) << 8) | ROM(PC);
INSTRUCTION(jsr0) { JSR(0); }
INSTRUCTION(jsr1) { JSR(1); }
INSTRUCTION(jsr2) { JSR(2); }
INSTRUCTION(jsr3) { JSR(3); }
PUSH(PC + 1);
PC = a;
}
/*
Mnemonic: RET
Hex Code: 48
Binary: 0 1 0 0 1 0 0 0
@ -459,7 +452,7 @@ INSTRUCTION(ret)
/*
Mnemonic: RETSK
Hex Code: 49
Binary: 0 1 0 0 1 0 0 1
@ -482,7 +475,7 @@ INSTRUCTION(retsk)
/*
Mnemonic: CAMQ
Hex Code: 33 3C
Binary: 0 0 1 1 0 0 1 1 0 0 1 1 1 1 0 0
@ -495,13 +488,13 @@ INSTRUCTION(retsk)
INSTRUCTION(camq)
{
WRITE_Q((A << 4) | READ_M);
WRITE_Q((A << 4) | RAM_R(B));
}
/*
Mnemonic: LD
Operand: r
Hex Code: -5
Binary: 0 0 r1 r0 0 1 0 1
@ -513,21 +506,18 @@ INSTRUCTION(camq)
*/
INLINE void LD(UINT8 r)
INSTRUCTION(ld)
{
A = RAM_R(B);
B = B ^ (r << 4);
}
UINT8 r = opcode & 0x30;
INSTRUCTION(ld0) { LD(0); }
INSTRUCTION(ld1) { LD(1); }
INSTRUCTION(ld2) { LD(2); }
INSTRUCTION(ld3) { LD(3); }
A = RAM_R(B);
B = B ^ r;
}
/*
Mnemonic: LQID
Hex Code: BF
Binary: 1 0 1 1 1 1 1 1
@ -541,7 +531,7 @@ INSTRUCTION(ld3) { LD(3); }
INSTRUCTION(lqid)
{
PUSH(PC + 1);
PC = (UINT16)((PC & 0x300) | (A << 4) | READ_M);
PC = (PC & 0x300) | (A << 4) | RAM_R(B);
WRITE_Q(ROM(PC));
POP();
}
@ -549,7 +539,7 @@ INSTRUCTION(lqid)
/*
Mnemonic: RMB
Operand: 0
1
2
@ -582,7 +572,7 @@ INSTRUCTION(rmb3) { RAM_W(B, RAM_R(B) & 0x7); }
/*
Mnemonic: SMB
Operand: 0
1
2
@ -615,7 +605,7 @@ INSTRUCTION(smb3) { RAM_W(B, RAM_R(B) | 0x8); }
/*
Mnemonic: STII
Operand: y
Hex Code: 7-
Binary: 0 1 1 1 y3 y2 y1 y0
@ -633,15 +623,15 @@ INSTRUCTION(stii)
UINT16 Bd;
RAM_W(B, y);
Bd = (B & 0x0f) + 1;
if (Bd > 15) Bd = 0;
Bd = ((B & 0x0f) + 1) & 0x0f;
B = (B & 0x30) + Bd;
}
/*
Mnemonic: X
Operand: r
Hex Code: -6
Binary: 0 0 r1 r0 0 1 1 0
@ -655,24 +645,24 @@ INSTRUCTION(stii)
INSTRUCTION(x)
{
UINT4 r = (opcode >> 4) & 0x03;
UINT4 r = opcode & 0x30;
UINT8 t = RAM_R(B);
RAM_W(B, A);
A = t;
B = B ^ (r << 4);
B = B ^ r;
}
/*
Mnemonic: XAD
Operand: r,d
Hex Code: 23 --
Binary: 0 0 1 0 0 0 1 1 1 0 r1 r0 d3 d2 d1 d0
Data Flow: RAM(r,d) -> A
Data Flow: RAM(r,d) <-> A
Description: Exchange A with RAM pointed to directly by r,d
@ -680,16 +670,18 @@ INSTRUCTION(x)
INSTRUCTION(xad)
{
UINT8 addr = ROM(PC++) & 0x3f;
UINT8 rd = opcode & 0x3f;
UINT8 t = A;
A = RAM_R(addr);
RAM_W(addr, t);
A = RAM_R(rd);
RAM_W(rd, t);
}
/*
Mnemonic: XDS
Operand: r
Hex Code: -7
Binary: 0 0 r1 r0 0 1 1 1
@ -706,24 +698,25 @@ INSTRUCTION(xad)
INSTRUCTION(xds)
{
UINT8 t, Bd, Br;
UINT4 r = (opcode >> 4) & 0x03;
UINT8 t, Bd;
UINT4 r = opcode & 0x30;
t = RAM_R(B);
RAM_W(B, A);
A = t;
Br = (UINT8)((B & 0x30) ^ (r << 4));
Bd = (UINT8)((B & 0x0F) - 1);
B = (UINT8)(Br | (Bd & 0x0F));
Bd = ((B & 0x0f) - 1) & 0x0f;
B = (B & 0x30) | Bd;
if (Bd == 0xFF) skip = 1;
B = B ^ r;
if (Bd == 0x0f) skip = 1;
}
/*
Mnemonic: XIS
Operand: r
Hex Code: -4
Binary: 0 0 r1 r0 0 1 0 0
@ -740,18 +733,19 @@ INSTRUCTION(xds)
INSTRUCTION(xis)
{
UINT8 t, Bd, Br;
UINT4 r = (opcode >> 4) & 0x03;
UINT8 t, Bd;
UINT4 r = opcode & 0x30;
t = RAM_R(B);
RAM_W(B, A);
A = t;
Br = (UINT8)((B & 0x30) ^ (r << 4));
Bd = (UINT8)((B & 0x0F) + 1);
B = (UINT8)(Br | (Bd & 0x0F));
Bd = ((B & 0x0f) + 1) & 0x0f;
B = (B & 0x30) | Bd;
if (Bd == 0x10) skip = 1;
B = B ^ r;
if (Bd == 0x00) skip = 1;
}
/* Register Reference Instructions */
@ -759,7 +753,7 @@ INSTRUCTION(xis)
/*
Mnemonic: CAB
Hex Code: 50
Binary: 0 1 0 1 0 0 0 0 0
@ -777,7 +771,7 @@ INSTRUCTION(cab)
/*
Mnemonic: CBA
Hex Code: 4E
Binary: 0 1 0 0 1 1 1 0
@ -795,7 +789,7 @@ INSTRUCTION(cba)
/*
Mnemonic: LBI
Operand: r,d
Hex Code: --
33 --
@ -811,84 +805,24 @@ INSTRUCTION(cba)
*/
INLINE void LBI(UINT8 r, UINT8 d)
INSTRUCTION(lbi)
{
B = (r << 4) | d;
if (opcode & 0x80)
{
B = opcode & 0x3f;
}
else
{
B = (opcode & 0x30) | (((opcode & 0x0f) + 1) & 0x0f);
}
skipLBI = 1;
}
INSTRUCTION(lbi0_0) { LBI(0,0); }
INSTRUCTION(lbi0_1) { LBI(0,1); }
INSTRUCTION(lbi0_2) { LBI(0,2); }
INSTRUCTION(lbi0_3) { LBI(0,3); }
INSTRUCTION(lbi0_4) { LBI(0,4); }
INSTRUCTION(lbi0_5) { LBI(0,5); }
INSTRUCTION(lbi0_6) { LBI(0,6); }
INSTRUCTION(lbi0_7) { LBI(0,7); }
INSTRUCTION(lbi0_8) { LBI(0,8); }
INSTRUCTION(lbi0_9) { LBI(0,9); }
INSTRUCTION(lbi0_10) { LBI(0,10); }
INSTRUCTION(lbi0_11) { LBI(0,11); }
INSTRUCTION(lbi0_12) { LBI(0,12); }
INSTRUCTION(lbi0_13) { LBI(0,13); }
INSTRUCTION(lbi0_14) { LBI(0,14); }
INSTRUCTION(lbi0_15) { LBI(0,15); }
INSTRUCTION(lbi1_0) { LBI(1,0); }
INSTRUCTION(lbi1_1) { LBI(1,1); }
INSTRUCTION(lbi1_2) { LBI(1,2); }
INSTRUCTION(lbi1_3) { LBI(1,3); }
INSTRUCTION(lbi1_4) { LBI(1,4); }
INSTRUCTION(lbi1_5) { LBI(1,5); }
INSTRUCTION(lbi1_6) { LBI(1,6); }
INSTRUCTION(lbi1_7) { LBI(1,7); }
INSTRUCTION(lbi1_8) { LBI(1,8); }
INSTRUCTION(lbi1_9) { LBI(1,9); }
INSTRUCTION(lbi1_10) { LBI(1,10); }
INSTRUCTION(lbi1_11) { LBI(1,11); }
INSTRUCTION(lbi1_12) { LBI(1,12); }
INSTRUCTION(lbi1_13) { LBI(1,13); }
INSTRUCTION(lbi1_14) { LBI(1,14); }
INSTRUCTION(lbi1_15) { LBI(1,15); }
INSTRUCTION(lbi2_0) { LBI(2,0); }
INSTRUCTION(lbi2_1) { LBI(2,1); }
INSTRUCTION(lbi2_2) { LBI(2,2); }
INSTRUCTION(lbi2_3) { LBI(2,3); }
INSTRUCTION(lbi2_4) { LBI(2,4); }
INSTRUCTION(lbi2_5) { LBI(2,5); }
INSTRUCTION(lbi2_6) { LBI(2,6); }
INSTRUCTION(lbi2_7) { LBI(2,7); }
INSTRUCTION(lbi2_8) { LBI(2,8); }
INSTRUCTION(lbi2_9) { LBI(2,9); }
INSTRUCTION(lbi2_10) { LBI(2,10); }
INSTRUCTION(lbi2_11) { LBI(2,11); }
INSTRUCTION(lbi2_12) { LBI(2,12); }
INSTRUCTION(lbi2_13) { LBI(2,13); }
INSTRUCTION(lbi2_14) { LBI(2,14); }
INSTRUCTION(lbi2_15) { LBI(2,15); }
INSTRUCTION(lbi3_0) { LBI(3,0); }
INSTRUCTION(lbi3_1) { LBI(3,1); }
INSTRUCTION(lbi3_2) { LBI(3,2); }
INSTRUCTION(lbi3_3) { LBI(3,3); }
INSTRUCTION(lbi3_4) { LBI(3,4); }
INSTRUCTION(lbi3_5) { LBI(3,5); }
INSTRUCTION(lbi3_6) { LBI(3,6); }
INSTRUCTION(lbi3_7) { LBI(3,7); }
INSTRUCTION(lbi3_8) { LBI(3,8); }
INSTRUCTION(lbi3_9) { LBI(3,9); }
INSTRUCTION(lbi3_10) { LBI(3,10); }
INSTRUCTION(lbi3_11) { LBI(3,11); }
INSTRUCTION(lbi3_12) { LBI(3,12); }
INSTRUCTION(lbi3_13) { LBI(3,13); }
INSTRUCTION(lbi3_14) { LBI(3,14); }
INSTRUCTION(lbi3_15) { LBI(3,15); }
/*
Mnemonic: LEI
Operand: y
Hex Code: 33 6-
Binary: 0 0 1 1 0 0 1 1 0 1 1 0 y3 y2 y1 y0
@ -916,7 +850,7 @@ INSTRUCTION(lei)
/*
Mnemonic: SKC
Hex Code: 20
Binary: 0 0 1 0 0 0 0 0
@ -928,13 +862,13 @@ INSTRUCTION(lei)
INSTRUCTION(skc)
{
if (C == 1) skip = 1;
if (C == 1) skip = 1;
}
/*
Mnemonic: SKE
Hex Code: 21
Binary: 0 0 1 0 0 0 0 1
@ -952,7 +886,7 @@ INSTRUCTION(ske)
/*
Mnemonic: SKGZ
Hex Code: 33 21
Binary: 00 0 1 1 0 0 1 1 0 0 1 0 0 0 0 1
@ -970,13 +904,13 @@ INSTRUCTION(skgz)
/*
Mnemonic: SKGBZ
Hex Code: 33 01
33 11
33 03
33 13
Binary:
Binary:
Skip Conditions: G0 = 0
G1 = 0
@ -987,21 +921,26 @@ INSTRUCTION(skgz)
*/
INSTRUCTION(skgbz0) { if (!BIT(IN_G(), 0)) skip = 1; }
INSTRUCTION(skgbz1) { if (!BIT(IN_G(), 1)) skip = 1; }
INSTRUCTION(skgbz2) { if (!BIT(IN_G(), 2)) skip = 1; }
INSTRUCTION(skgbz3) { if (!BIT(IN_G(), 3)) skip = 1; }
INLINE void skgbz(int bit)
{
if (!BIT(IN_G(), bit)) skip = 1;
}
INSTRUCTION(skgbz0) { skgbz(0); }
INSTRUCTION(skgbz1) { skgbz(1); }
INSTRUCTION(skgbz2) { skgbz(2); }
INSTRUCTION(skgbz3) { skgbz(3); }
/*
Mnemonic: SKMBZ
Hex Code: 01
11
03
13
Binary:
Binary:
Skip Conditions: RAM(B)0 = 0
RAM(B)0 = 1
@ -1012,19 +951,24 @@ INSTRUCTION(skgbz3) { if (!BIT(IN_G(), 3)) skip = 1; }
*/
INSTRUCTION(skmbz0) { if (!BIT(RAM_R(B), 0)) skip = 1; }
INSTRUCTION(skmbz1) { if (!BIT(RAM_R(B), 1)) skip = 1; }
INSTRUCTION(skmbz2) { if (!BIT(RAM_R(B), 2)) skip = 1; }
INSTRUCTION(skmbz3) { if (!BIT(RAM_R(B), 3)) skip = 1; }
INLINE void skmbz(int bit)
{
if (!BIT(RAM_R(B), bit)) skip = 1;
}
INSTRUCTION(skmbz0) { skmbz(0); }
INSTRUCTION(skmbz1) { skmbz(1); }
INSTRUCTION(skmbz2) { skmbz(2); }
INSTRUCTION(skmbz3) { skmbz(3); }
/* Input/Output Instructions */
/*
Mnemonic: ING
Hex Code: 33 2A
Binary:
Binary:
Data Flow: G -> A
@ -1040,9 +984,9 @@ INSTRUCTION(ing)
/*
Mnemonic: INL
Hex Code: 33 2E
Binary:
Binary:
Data Flow: L7:4 -> RAM(B)
L3:0 -> A
@ -1054,6 +998,7 @@ INSTRUCTION(ing)
INSTRUCTION(inl)
{
UINT8 L = IN_L();
RAM_W(B, L >> 4);
A = L & 0xF;
}
@ -1061,9 +1006,9 @@ INSTRUCTION(inl)
/*
Mnemonic: OBD
Hex Code: 33 3E
Binary:
Binary:
Data Flow: Bd -> D
@ -1079,9 +1024,9 @@ INSTRUCTION(obd)
/*
Mnemonic: OMG
Hex Code: 33 3A
Binary:
Binary:
Data Flow: RAM(B) -> G
@ -1097,7 +1042,7 @@ INSTRUCTION(omg)
/*
Mnemonic: XAS
Hex Code: 4F
Binary: 0 1 0 0 1 1 1 1

View File

@ -24,7 +24,7 @@
/*
Mnemonic: ADT
Hex Code: 4A
Binary: 0 1 0 0 1 0 1 0
@ -42,7 +42,7 @@ INSTRUCTION(adt)
/*
Mnemonic: CASC
Hex Code: 10
Binary: 0 0 0 1 0 0 0 0
@ -76,7 +76,7 @@ INSTRUCTION(casc)
/*
Mnemonic: RET
Hex Code: 48
Binary: 0 1 0 0 1 0 0 0
@ -97,7 +97,7 @@ INSTRUCTION(cop420_ret)
/*
Mnemonic: CQMA
Hex Code: 33 2C
Binary: 0 0 1 1 0 0 1 1 0 0 1 0 1 1 0 0
@ -110,14 +110,14 @@ INSTRUCTION(cop420_ret)
INSTRUCTION(cqma)
{
WRITE_M(Q >> 4);
RAM_W(B, Q >> 4);
A = Q & 0xF;
}
/*
Mnemonic: LDD
Operand: r, d
Hex Code: 23 --
Binary: 0 0 1 0 0 0 1 1 0 0 r1 r0 d3 d2 d1 d0
@ -131,7 +131,7 @@ INSTRUCTION(cqma)
INSTRUCTION(ldd)
{
UINT8 rd = opcode & 0x3f;
A = RAM_R(rd);
}
@ -140,7 +140,7 @@ INSTRUCTION(ldd)
/*
Mnemonic: XABR
Hex Code: 12
Binary: 0 0 0 1 0 0 1 0
@ -155,7 +155,7 @@ INSTRUCTION(xabr)
UINT8 Br = A & 0x03;
UINT8 Bd = B & 0x0f;
A = (B & 0x30) >> 4;
A = B >> 4;
B = (Br << 4) + Bd;
}
@ -164,7 +164,7 @@ INSTRUCTION(xabr)
/*
Mnemonic: SKT
Hex Code: 41
Binary: 0 1 0 0 0 0 0 1
@ -176,7 +176,7 @@ INSTRUCTION(xabr)
INSTRUCTION(skt)
{
if (R.timerlatch == 1)
if (R.timerlatch)
{
R.timerlatch = 0;
skip = 1;
@ -188,9 +188,9 @@ INSTRUCTION(skt)
/*
Mnemonic: ININ
Hex Code: 33 28
Binary:
Binary:
Data Flow: IN -> A
@ -198,16 +198,19 @@ INSTRUCTION(skt)
*/
INSTRUCTION(inin) { A = IN_IN(); }
INSTRUCTION(inin)
{
A = IN_IN();
}
/*
Processor: COP402M
Mnemonic: ININ
Hex Code: 33 28
Binary:
Binary:
Data Flow: IN -> A, A1 = "1"
@ -220,13 +223,12 @@ INSTRUCTION(cop402m_inin)
A = IN_IN() | 0x02;
}
/*
Mnemonic: INIL
Hex Code: 33 29
Binary:
Binary:
Data Flow: IL3,"1","0",IL0 -> A
@ -237,7 +239,7 @@ INSTRUCTION(cop402m_inin)
INSTRUCTION(inil)
{
// NOT PROPERLY IMPLEMENTED
A = (IN_IN() & 0x09) | 0x04;
}
@ -246,9 +248,9 @@ INSTRUCTION(inil)
Processor: COP421
Mnemonic: INIL
Hex Code: 33 29
Binary:
Binary:
Data Flow: "0",CKO,"0","0" -> A
@ -258,13 +260,15 @@ INSTRUCTION(inil)
INSTRUCTION(cop421_inil)
{
// NOT IMPLEMENTED
// NOT PROPERLY IMPLEMENTED
A = 0;
}
/*
Mnemonic: OGI
Operand: y
Hex Code: 33 5-
Binary: 0 0 1 1 0 0 1 1 0 1 0 1 y3 y2 y1 y0

View File

@ -13,6 +13,7 @@
TODO:
- remove LBIops
- JP/JSR/JSRP
*/
@ -74,6 +75,7 @@ static const s_opcode opcode_23_map[256]=
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
@ -82,14 +84,16 @@ static const s_opcode opcode_23_map[256]=
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },
{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },
{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },
{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },
{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },
{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },
{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },
{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, xad },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
@ -117,6 +121,7 @@ static const s_opcode opcode_33_map[256]=
{1, illegal },{1, illegal },{1, ing },{1, illegal },{1, illegal },{1, illegal },{1, inl },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, omg },{1, illegal },{1, camq },{1, illegal },{1, obd },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
@ -125,6 +130,7 @@ static const s_opcode opcode_33_map[256]=
{1, lei },{1, lei },{1, lei },{1, lei },{1, lei },{1, lei },{1, lei },{1, lei },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
@ -133,6 +139,7 @@ static const s_opcode opcode_33_map[256]=
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
@ -152,22 +159,24 @@ static void cop410_op33(UINT8 opcode)
static const s_opcode opcode_map[256]=
{
{1, clra },{1, skmbz0 },{1, xor },{1, skmbz2 },{1, xis },{1, ld0 },{1, x },{1, xds },
{1, lbi0_9 },{1, lbi0_10 },{1, lbi0_11 },{1, lbi0_12 },{1, lbi0_13 },{1, lbi0_14 },{1, lbi0_15 },{1, lbi0_0 },
{0, illegal },{1, skmbz1 },{0, illegal },{1, skmbz3 },{1, xis },{1, ld1 },{1, x },{1, xds },
{1, lbi1_9 },{1, lbi1_10 },{1, lbi1_11 },{1, lbi1_12 },{1, lbi1_13 },{1, lbi1_14 },{1, lbi1_15 },{1, lbi1_0 },
{1, skc },{1, ske },{1, sc },{2, cop410_op23 },{1, xis },{1, ld2 },{1, x },{1, xds },
{1, lbi2_9 },{1, lbi2_10 },{1, lbi2_11 },{1, lbi2_12 },{1, lbi2_13 },{1, lbi2_14 },{1, lbi2_15 },{1, lbi2_0 },
{1, asc },{1, add },{1, rc },{2, cop410_op33 },{1, xis },{1, ld3 },{1, x },{1, xds },
{1, lbi3_9 },{1, lbi3_10 },{1, lbi3_11 },{1, lbi3_12 },{1, lbi3_13 },{1, lbi3_14 },{1, lbi3_15 },{1, lbi3_0 },
{1, comp },{0, illegal },{1, rmb2 },{1, rmb2 },{1, nop },{1, rmb1 },{1, smb2 },{1, smb1 },
{1, clra },{1, skmbz0 },{1, xor },{1, skmbz2 },{1, xis },{1, ld },{1, x },{1, xds },
{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },
{0, illegal },{1, skmbz1 },{0, illegal },{1, skmbz3 },{1, xis },{1, ld },{1, x },{1, xds },
{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },
{1, skc },{1, ske },{1, sc },{2, cop410_op23 },{1, xis },{1, ld },{1, x },{1, xds },
{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },
{1, asc },{1, add },{1, rc },{2, cop410_op33 },{1, xis },{1, ld },{1, x },{1, xds },
{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },
{1, comp },{0, illegal },{1, rmb2 },{1, rmb3 },{1, nop },{1, rmb1 },{1, smb2 },{1, smb1 },
{1, ret },{1, retsk },{0, illegal },{1, smb3 },{1, rmb0 },{1, smb0 },{1, cba },{1, xas },
{1, cab },{1, aisc },{1, aisc },{1, aisc },{1, aisc },{1, aisc },{1, aisc },{1, aisc },
{1, aisc },{1, aisc },{1, aisc },{1, aisc },{1, aisc },{1, aisc },{1, aisc },{1, aisc },
{2, jmp },{2, jmp },{0, illegal },{0, illegal },{0, illegal },{0, illegal },{0, illegal },{0, illegal },
{2, jsr0 },{2, jsr1 },{0, illegal },{0, illegal },{0, illegal },{0, illegal },{0, illegal },{0, illegal },
{2, jsr },{2, jsr },{0, illegal },{0, illegal },{0, illegal },{0, illegal },{0, illegal },{0, illegal },
{1, stii },{1, stii },{1, stii },{1, stii },{1, stii },{1, stii },{1, stii },{1, stii },
{1, stii },{1, stii },{1, stii },{1, stii },{1, stii },{1, stii },{1, stii },{1, stii },
{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },
{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },
{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },
@ -176,6 +185,7 @@ static const s_opcode opcode_map[256]=
{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },
{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },
{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{2, lqid },
{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },
{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },
{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },
@ -208,7 +218,7 @@ static void cop410_init(int index, int clock, const void *config, int (*irqcallb
R.D_mask = 0x0F;
cop410_serial_timer = timer_alloc(cop410_serial_tick, NULL);
timer_adjust_periodic(cop410_serial_timer, attotime_zero, cpu_getactivecpu(), ATTOTIME_IN_HZ(clock / 16));
timer_adjust_periodic(cop410_serial_timer, attotime_zero, index, ATTOTIME_IN_HZ(clock));
for (i=0; i<256; i++) InstLen[i]=1;

View File

@ -13,7 +13,7 @@
TODO:
- JP/JSR/JSRP
- remove LBIops
- INIL
*/
@ -81,6 +81,7 @@ static const s_opcode opcode_23_map[256]=
{1, ldd },{1, ldd },{1, ldd },{1, ldd },{1, ldd },{1, ldd },{1, ldd },{1, ldd },
{1, ldd },{1, ldd },{1, ldd },{1, ldd },{1, ldd },{1, ldd },{1, ldd },{1, ldd },
{1, ldd },{1, ldd },{1, ldd },{1, ldd },{1, ldd },{1, ldd },{1, ldd },{1, ldd },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
@ -89,6 +90,7 @@ static const s_opcode opcode_23_map[256]=
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },
{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },
{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },
@ -97,6 +99,7 @@ static const s_opcode opcode_23_map[256]=
{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },
{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },
{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },{1, xad },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
@ -124,6 +127,7 @@ static const s_opcode opcode_33_map[256]=
{1, inin },{1, illegal },{1, ing },{1, illegal },{1, cqma },{1, illegal },{1, inl },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, omg },{1, illegal },{1, camq },{1, illegal },{1, obd },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, ogi },{1, ogi },{1, ogi },{1, ogi },{1, ogi },{1, ogi },{1, ogi },{1, ogi },
@ -132,14 +136,16 @@ static const s_opcode opcode_33_map[256]=
{1, lei },{1, lei },{1, lei },{1, lei },{1, lei },{1, lei },{1, lei },{1, lei },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, lbi0_1 },{1, lbi0_2 },{1, lbi0_3 },{1, lbi0_4 },{1, lbi0_5 },{1, lbi0_6 },{1, lbi0_7 },
{1, lbi0_8 },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, lbi1_1 },{1, lbi1_2 },{1, lbi1_3 },{1, lbi1_4 },{1, lbi1_5 },{1, lbi1_6 },{1, lbi1_7 },
{1, lbi1_8 },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, lbi2_1 },{1, lbi2_2 },{1, lbi2_3 },{1, lbi2_4 },{1, lbi2_5 },{1, lbi2_6 },{1, lbi2_7 },
{1, lbi2_8 },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, lbi3_1 },{1, lbi3_2 },{1, lbi3_3 },{1, lbi3_4 },{1, lbi3_5 },{1, lbi3_6 },{1, lbi3_7 },
{1, lbi3_8 },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },
{1, lbi },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },
{1, lbi },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },
{1, lbi },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },
{1, lbi },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },{1, illegal },
@ -159,22 +165,24 @@ static void cop420_op33(UINT8 opcode)
static const s_opcode opcode_map[256]=
{
{1, clra },{1, skmbz0 },{1, xor },{1, skmbz2 },{1, xis },{1, ld0 },{1, x },{1, xds },
{1, lbi0_9 },{1, lbi0_10 },{1, lbi0_11 },{1, lbi0_12 },{1, lbi0_13 },{1, lbi0_14 },{1, lbi0_15 },{1, lbi0_0 },
{1, casc },{1, skmbz1 },{1, xabr },{1, skmbz3 },{1, xis },{1, ld1 },{1, x },{1, xds },
{1, lbi1_9 },{1, lbi1_10 },{1, lbi1_11 },{1, lbi1_12 },{1, lbi1_13 },{1, lbi1_14 },{1, lbi1_15 },{1, lbi1_0 },
{1, skc },{1, ske },{1, sc },{2, cop420_op23 },{1, xis },{1, ld2 },{1, x },{1, xds },
{1, lbi2_9 },{1, lbi2_10 },{1, lbi2_11 },{1, lbi2_12 },{1, lbi2_13 },{1, lbi2_14 },{1, lbi2_15 },{1, lbi2_0 },
{1, asc },{1, add },{1, rc },{2, cop420_op33 },{1, xis },{1, ld3 },{1, x },{1, xds },
{1, lbi3_9 },{1, lbi3_10 },{1, lbi3_11 },{1, lbi3_12 },{1, lbi3_13 },{1, lbi3_14 },{1, lbi3_15 },{1, lbi3_0 },
{1, clra },{1, skmbz0 },{1, xor },{1, skmbz2 },{1, xis },{1, ld },{1, x },{1, xds },
{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },
{1, casc },{1, skmbz1 },{1, xabr },{1, skmbz3 },{1, xis },{1, ld },{1, x },{1, xds },
{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },
{1, skc },{1, ske },{1, sc },{2, cop420_op23 },{1, xis },{1, ld },{1, x },{1, xds },
{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },
{1, asc },{1, add },{1, rc },{2, cop420_op33 },{1, xis },{1, ld },{1, x },{1, xds },
{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },{1, lbi },
{1, comp },{1, skt },{1, rmb2 },{1, rmb3 },{1, nop },{1, rmb1 },{1, smb2 },{1, smb1 },
{1, cop420_ret },{1, retsk },{1, adt },{1, smb3 },{1, rmb0 },{1, smb0 },{1, cba },{1, xas },
{1, cab },{1, aisc },{1, aisc },{1, aisc },{1, aisc },{1, aisc },{1, aisc },{1, aisc },
{1, aisc },{1, aisc },{1, aisc },{1, aisc },{1, aisc },{1, aisc },{1, aisc },{1, aisc },
{2, jmp },{2, jmp },{2, jmp },{2, jmp },{0, illegal },{0, illegal },{0, illegal },{0, illegal },
{2, jsr0 },{2, jsr1 },{2, jsr2 },{2, jsr3 },{0, illegal },{0, illegal },{0, illegal },{0, illegal },
{2, jsr },{2, jsr },{2, jsr },{2, jsr },{0, illegal },{0, illegal },{0, illegal },{0, illegal },
{1, stii },{1, stii },{1, stii },{1, stii },{1, stii },{1, stii },{1, stii },{1, stii },
{1, stii },{1, stii },{1, stii },{1, stii },{1, stii },{1, stii },{1, stii },{1, stii },
{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },
{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },
{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },
@ -183,6 +191,7 @@ static const s_opcode opcode_map[256]=
{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },
{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },
{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{2, lqid },
{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },
{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },
{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },{1, jp },
@ -236,10 +245,10 @@ static void cop420_init(int index, int clock, const void *config, int (*irqcallb
R.D_mask = 0x0F;
cop420_serial_timer = timer_alloc(cop410_serial_tick, NULL);
timer_adjust_periodic(cop420_serial_timer, attotime_zero, cpu_getactivecpu(), ATTOTIME_IN_HZ(clock / 16));
timer_adjust_periodic(cop420_serial_timer, attotime_zero, index, ATTOTIME_IN_HZ(clock));
cop420_counter_timer = timer_alloc(cop420_counter_tick, NULL);
timer_adjust_periodic(cop420_counter_timer, attotime_zero, cpu_getactivecpu(), ATTOTIME_IN_HZ(clock / 16 / 1024));
timer_adjust_periodic(cop420_counter_timer, attotime_zero, index, ATTOTIME_IN_HZ(clock / 1024));
for (i=0; i<256; i++) InstLen[i]=1;
@ -373,7 +382,7 @@ static int cop420_execute(int cycles)
{
void *function = opcode_map[ROM(PC)].function;
if ((function != jp) && (function != jmp) && (function != jsr0) && (function != jsr1) && (function != jsr2) && (function != jsr3))
if ((function != jp) && (function != jmp) && (function != jsr))
{
// store skip logic
R.last_skip = skip;