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couple more ops (nw)

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This commit is contained in:
mamehaze 2014-12-21 17:42:42 +00:00
parent c0b0586d7c
commit 464e61334b
4 changed files with 92 additions and 19 deletions
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3
src/emu/cpu/arcompact/arcompact_common.h
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@ -15,4 +15,5 @@ extern const char *delaybit[0x2];
extern const char *regnames[0x40];
extern const char *opcodes_04[0x40];
#define REG_BLINK (0x1f) // 31
#define REG_BLINK (0x1f) // r31
#define REG_SP (0x1c) // r28

91
src/emu/cpu/arcompact/arcompact_execute.c
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@ -120,6 +120,9 @@ void arcompact_device::execute_run()
limm = (READ16((m_pc + 4) >> 1) << 16); \
limm |= READ16((m_pc + 6) >> 1); \
#define GET_LIMM_16 \
limm = (READ16((m_pc + 2) >> 1) << 16); \
limm |= READ16((m_pc + 4) >> 1); \
#define PC_ALIGNED32 \
@ -1228,10 +1231,19 @@ ARCOMPACT_RETTYPE arcompact_device::arcompact_handle03(OPS_32)
int size = 4;
//UINT32 limm = 0;
int got_limm = 0;
int S = (op & 0x00008000) >> 15;// op &= ~0x00008000;
int s = (op & 0x00ff0000) >> 16;// op &= ~0x00ff0000;
COMMON32_GET_breg;
COMMON32_GET_creg;
if (S) s = -0x100 + s;
// int R = (op & 0x00000001) >> 0; op &= ~0x00000001; // bit 0 is reserved
int Z = (op & 0x00000006) >> 1; op &= ~0x00000006;
int a = (op & 0x00000018) >> 3; op &= ~0x00000018;
// int D = (op & 0x00000020) >> 5; op &= ~0x00000020; // we don't use the data cache currently
if (breg == LIMM_REG)
{
//GET_LIMM_32;
@ -1252,7 +1264,27 @@ ARCOMPACT_RETTYPE arcompact_device::arcompact_handle03(OPS_32)
}
arcompact_log("unimplemented ST %08x", op);
if (Z == 0)
{
UINT32 address = m_regs[breg] + s;
WRITE32(address>>2, m_regs[creg]);
}
else if (Z == 1)
{
arcompact_fatal("illegal ST %08x (data size %d mode %d)", op, Z, a);
}
else if (Z == 2)
{
arcompact_fatal("illegal ST %08x (data size %d mode %d)", op, Z, a);
}
else
{
arcompact_fatal("illegal ST %08x (data size %d mode %d)", op, Z, a);
}
// todo, handle 'a' increment modes
return m_pc + (size>>0);
}
@ -1846,7 +1878,7 @@ ARCOMPACT_RETTYPE arcompact_device::arcompact_handle04_2b(OPS_32) // Store TO A
{
}
arcompact_log("unimplemented ST %08x", op);
arcompact_log("unimplemented SR %08x", op);
return m_pc + (size>>0);
}
@ -2164,9 +2196,36 @@ ARCOMPACT_RETTYPE arcompact_device::arcompact_handle0e_00(OPS_16)
return arcompact_handle0e_0x_helper(PARAMS, "ADD_S", 0);
}
ARCOMPACT_RETTYPE arcompact_device::arcompact_handle0e_01(OPS_16)
// 16-bit MOV with extended register range
ARCOMPACT_RETTYPE arcompact_device::arcompact_handle0e_01(OPS_16) // MOV_S b <- h
{
return arcompact_handle0e_0x_helper(PARAMS, "MOV_S", 0);
int h,breg;
int size = 2;
GROUP_0e_GET_h;
COMMON16_GET_breg;
REG_16BIT_RANGE(breg);
if (h == LIMM_REG)
{
// opcode iiii ibbb hhhI Ihhh
// MOV_S b, limm 0111 0bbb 1100 1111 [LIMM] (h == LIMM)
UINT32 limm;
GET_LIMM_16;
size = 6;
m_regs[breg] = limm;
}
else
{
// opcode iiii ibbb hhhI Ihhh
// MOV_S b,h 0111 0bbb hhh0 1HHH
m_regs[breg] = m_regs[h];
}
return m_pc+ (size>>0);
}
ARCOMPACT_RETTYPE arcompact_device::arcompact_handle0e_02(OPS_16)
@ -2176,7 +2235,7 @@ ARCOMPACT_RETTYPE arcompact_device::arcompact_handle0e_02(OPS_16)
ARCOMPACT_RETTYPE arcompact_device::arcompact_handle0e_03(OPS_16)
{
return arcompact_handle0e_0x_helper(PARAMS, "MOV_S", 1);
return arcompact_handle0e_0x_helper(PARAMS, "MOV_S (0e_03 type)", 1);
}
@ -2403,15 +2462,27 @@ ARCOMPACT_RETTYPE arcompact_device::arcompact_handle18_06_11(OPS_16)
// op bits remaining for 0x18_07_xx subgroups 0x0700
ARCOMPACT_RETTYPE arcompact_device::arcompact_handle18_07_01(OPS_16)
{
arcompact_log("unimplemented PUSH_S %04x", op);
return m_pc + (2 >> 0);;
int breg;
COMMON16_GET_breg;
REG_16BIT_RANGE(breg);
m_regs[REG_SP] -= 4;
WRITE32(m_regs[REG_SP] >> 2, m_regs[breg]);
return m_pc + (2 >> 0);
}
ARCOMPACT_RETTYPE arcompact_device::arcompact_handle18_07_11(OPS_16)
{
arcompact_log("unimplemented PUSH_S [BLINK] %04x", op);
return m_pc + (2 >> 0);;
// breg bits are reserved
m_regs[REG_SP] -= 4;
WRITE32(m_regs[REG_SP] >> 2, m_regs[REG_BLINK]);
return m_pc + (2 >> 0);
}
@ -2434,7 +2505,7 @@ ARCOMPACT_RETTYPE arcompact_device::arcompact_handle1a(OPS_16)
ARCOMPACT_RETTYPE arcompact_device::arcompact_handle1b(OPS_16)
{
arcompact_log("unimplemented MOV_S %04x", op);
arcompact_log("unimplemented MOV_S (1b type) %04x", op);
return m_pc + (2 >> 0);;
}

16
src/emu/cpu/arcompact/arcompactdasm_ops.c
View File

@ -1476,13 +1476,13 @@ int arcompact_handle0e_0x_helper_dasm(DASM_OPS_16, const char* optext, int revop
UINT32 limm;
GET_LIMM;
size = 6;
if (!revop) print("%s %s, (%08x) (%04x)", optext, regnames[breg], limm, op);
else print("%s (%08x), %s (%04x)", optext, limm, regnames[breg], op);
if (!revop) print("%s %s <- 0x%08x", optext, regnames[breg], limm);
else print("%s 0x%08x <- %s", optext, limm, regnames[breg]);
}
else
{
if (!revop) print("%s %s, %s (%04x)", optext, regnames[breg], regnames[h], op);
else print("%s %s, %s (%04x)", optext, regnames[h], regnames[breg], op);
if (!revop) print("%s %s <- %s", optext, regnames[breg], regnames[h]);
else print("%s %s <- %s", optext, regnames[h], regnames[breg]);
}
@ -1792,8 +1792,8 @@ int arcompact_handle18_05_01_dasm(DASM_OPS_16)
// op bits remaining for 0x18_06_xx subgroups 0x0700
int arcompact_handle18_06_01_dasm(DASM_OPS_16)
{
int breg = (op & 0x0700) >> 8;
op &= ~0x0700; // all bits now used
int breg;
COMMON16_GET_breg
REG_16BIT_RANGE(breg)
print("POP_S %s", regnames[breg]);
@ -1817,8 +1817,8 @@ int arcompact_handle18_06_11_dasm(DASM_OPS_16)
// op bits remaining for 0x18_07_xx subgroups 0x0700
int arcompact_handle18_07_01_dasm(DASM_OPS_16)
{
int breg = (op & 0x0700) >> 8;
op &= ~0x0700; // all bits now used
int breg;
COMMON16_GET_breg
REG_16BIT_RANGE(breg)
print("PUSH_S %s", regnames[breg]);

1
src/mess/drivers/leapster.c
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@ -277,6 +277,7 @@ void leapster_state::machine_reset()
static ADDRESS_MAP_START( leapster_map, AS_PROGRAM, 32, leapster_state )
AM_RANGE(0x00000000, 0x001fffff) AM_ROM AM_MIRROR(0x40000000) // pointers in the bios region seem to be to the 40xxxxxx region, either we mirror there or something (real bios?) is acutally missing
AM_RANGE(0x03000000, 0x030007ff) AM_RAM // puts stack here, writes a pointer @ 0x03000000 on startup
// AM_RANGE(0x80000000, 0x807fffff) AM_ROMBANK("cartrom") // game ROM pointers are all to the 80xxxxxx region, so I assume it maps here - installed if a cart is present
ADDRESS_MAP_END