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Pointer-ified the lh5801 core.

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This commit is contained in:
Aaron Giles 2008-12-10 17:40:54 +00:00
parent 92602c58d5
commit 258b16c5d1
3 changed files with 536 additions and 541 deletions
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906
src/emu/cpu/lh5801/5801tbl.c
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File diff suppressed because it is too large Load Diff

165
src/emu/cpu/lh5801/lh5801.c
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@ -45,7 +45,8 @@ enum
LH5801_IRQ_STATE
};
typedef struct
typedef struct _lh5810_state lh5801_state;
struct _lh5810_state
{
const lh5801_cpu_core *config;
const device_config *device;
@ -63,23 +64,20 @@ typedef struct
int irq_state;
int idle;
} LH5801_Regs;
int icount;
};
static int lh5801_icount = 0;
static LH5801_Regs lh5801= { 0 };
#define P lh5801.p.w.l
#define S lh5801.s.w.l
#define U lh5801.u.w.l
#define UL lh5801.u.b.l
#define UH lh5801.u.b.h
#define X lh5801.x.w.l
#define XL lh5801.x.b.l
#define XH lh5801.x.b.h
#define Y lh5801.y.w.l
#define YL lh5801.y.b.l
#define YH lh5801.y.b.h
#define P cpustate->p.w.l
#define S cpustate->s.w.l
#define U cpustate->u.w.l
#define UL cpustate->u.b.l
#define UH cpustate->u.b.h
#define X cpustate->x.w.l
#define XL cpustate->x.b.l
#define XH cpustate->x.b.h
#define Y cpustate->y.w.l
#define YL cpustate->y.b.l
#define YH cpustate->y.b.h
#define C 0x01
#define IE 0x02
@ -94,56 +92,48 @@ static LH5801_Regs lh5801= { 0 };
static CPU_INIT( lh5801 )
{
memset(&lh5801, 0, sizeof(lh5801));
lh5801.config = (const lh5801_cpu_core *) device->static_config;
lh5801.device = device;
lh5801.program = memory_find_address_space(device, ADDRESS_SPACE_PROGRAM);
lh5801_state *cpustate = device->token;
memset(cpustate, 0, sizeof(*cpustate));
cpustate->config = (const lh5801_cpu_core *) device->static_config;
cpustate->device = device;
cpustate->program = memory_find_address_space(device, ADDRESS_SPACE_PROGRAM);
}
static CPU_RESET( lh5801 )
{
P = (memory_read_byte(lh5801.program, 0xfffe)<<8) | memory_read_byte(lh5801.program, 0xffff);
lh5801_state *cpustate = device->token;
lh5801.idle=0;
}
P = (memory_read_byte(cpustate->program, 0xfffe)<<8) | memory_read_byte(cpustate->program, 0xffff);
static CPU_GET_CONTEXT( lh5801 )
{
if( dst )
*(LH5801_Regs*)dst = lh5801;
}
static CPU_SET_CONTEXT( lh5801 )
{
if( src )
{
lh5801 = *(LH5801_Regs*)src;
}
cpustate->idle=0;
}
static CPU_EXECUTE( lh5801 )
{
lh5801_icount = cycles;
lh5801_state *cpustate = device->token;
if (lh5801.idle) {
lh5801_icount=0;
cpustate->icount = cycles;
if (cpustate->idle) {
cpustate->icount=0;
} else {
do
{
lh5801.oldpc = P;
cpustate->oldpc = P;
debugger_instruction_hook(device, P);
lh5801_instruction();
lh5801_instruction(cpustate);
} while (lh5801_icount > 0);
} while (cpustate->icount > 0);
}
return cycles - lh5801_icount;
return cycles - cpustate->icount;
}
static void set_irq_line(int irqline, int state)
static void set_irq_line(lh5801_state *cpustate, int irqline, int state)
{
lh5801.idle=0;
cpustate->idle=0;
}
@ -154,10 +144,11 @@ static void set_irq_line(int irqline, int state)
static CPU_SET_INFO( lh5801 )
{
lh5801_state *cpustate = device->token;
switch (state)
{
/* --- the following bits of info are set as 64-bit signed integers --- */
case CPUINFO_INT_INPUT_STATE: set_irq_line(0, info->i); break;
case CPUINFO_INT_INPUT_STATE: set_irq_line(cpustate, 0, info->i); break;
case CPUINFO_INT_PC:
case CPUINFO_INT_REGISTER + LH5801_P: P = info->i; break;
@ -166,12 +157,12 @@ static CPU_SET_INFO( lh5801 )
case CPUINFO_INT_REGISTER + LH5801_U: U = info->i; break;
case CPUINFO_INT_REGISTER + LH5801_X: X = info->i; break;
case CPUINFO_INT_REGISTER + LH5801_Y: Y = info->i; break;
case CPUINFO_INT_REGISTER + LH5801_T: lh5801.t = info->i; break;
case CPUINFO_INT_REGISTER + LH5801_TM: lh5801.tm = info->i; break;
case CPUINFO_INT_REGISTER + LH5801_BF: lh5801.bf = info->i; break;
case CPUINFO_INT_REGISTER + LH5801_PV: lh5801.pv = info->i; break;
case CPUINFO_INT_REGISTER + LH5801_PU: lh5801.pu = info->i; break;
case CPUINFO_INT_REGISTER + LH5801_DP: lh5801.dp = info->i; break;
case CPUINFO_INT_REGISTER + LH5801_T: cpustate->t = info->i; break;
case CPUINFO_INT_REGISTER + LH5801_TM: cpustate->tm = info->i; break;
case CPUINFO_INT_REGISTER + LH5801_BF: cpustate->bf = info->i; break;
case CPUINFO_INT_REGISTER + LH5801_PV: cpustate->pv = info->i; break;
case CPUINFO_INT_REGISTER + LH5801_PU: cpustate->pu = info->i; break;
case CPUINFO_INT_REGISTER + LH5801_DP: cpustate->dp = info->i; break;
}
}
@ -183,10 +174,12 @@ static CPU_SET_INFO( lh5801 )
CPU_GET_INFO( lh5801 )
{
lh5801_state *cpustate = (device != NULL) ? device->token : NULL;
switch (state)
{
/* --- the following bits of info are returned as 64-bit signed integers --- */
case CPUINFO_INT_CONTEXT_SIZE: info->i = sizeof(lh5801); break;
case CPUINFO_INT_CONTEXT_SIZE: info->i = sizeof(lh5801_state); break;
case CPUINFO_INT_INPUT_LINES: info->i = 2; break;
case CPUINFO_INT_DEFAULT_IRQ_VECTOR: info->i = 0; break;
case CPUINFO_INT_ENDIANNESS: info->i = ENDIANNESS_LITTLE; break;
@ -207,9 +200,9 @@ CPU_GET_INFO( lh5801 )
case CPUINFO_INT_ADDRBUS_WIDTH + ADDRESS_SPACE_IO: info->i = 0; break;
case CPUINFO_INT_ADDRBUS_SHIFT + ADDRESS_SPACE_IO: info->i = 0; break;
case CPUINFO_INT_INPUT_STATE: info->i = lh5801.irq_state; break;
case CPUINFO_INT_INPUT_STATE: info->i = cpustate->irq_state; break;
case CPUINFO_INT_PREVIOUSPC: info->i = lh5801.oldpc; break;
case CPUINFO_INT_PREVIOUSPC: info->i = cpustate->oldpc; break;
case CPUINFO_INT_PC:
case CPUINFO_INT_REGISTER + LH5801_P: info->i = P; break;
@ -218,25 +211,25 @@ CPU_GET_INFO( lh5801 )
case CPUINFO_INT_REGISTER + LH5801_U: info->i = U; break;
case CPUINFO_INT_REGISTER + LH5801_X: info->i = X; break;
case CPUINFO_INT_REGISTER + LH5801_Y: info->i = Y; break;
case CPUINFO_INT_REGISTER + LH5801_T: info->i = lh5801.t; break;
case CPUINFO_INT_REGISTER + LH5801_TM: info->i = lh5801.tm; break;
case CPUINFO_INT_REGISTER + LH5801_IN: info->i = lh5801.config->in(); break;
case CPUINFO_INT_REGISTER + LH5801_BF: info->i = lh5801.bf; break;
case CPUINFO_INT_REGISTER + LH5801_PV: info->i = lh5801.pv; break;
case CPUINFO_INT_REGISTER + LH5801_PU: info->i = lh5801.pu; break;
case CPUINFO_INT_REGISTER + LH5801_DP: info->i = lh5801.dp; break;
case CPUINFO_INT_REGISTER + LH5801_T: info->i = cpustate->t; break;
case CPUINFO_INT_REGISTER + LH5801_TM: info->i = cpustate->tm; break;
case CPUINFO_INT_REGISTER + LH5801_IN: info->i = cpustate->config->in(device); break;
case CPUINFO_INT_REGISTER + LH5801_BF: info->i = cpustate->bf; break;
case CPUINFO_INT_REGISTER + LH5801_PV: info->i = cpustate->pv; break;
case CPUINFO_INT_REGISTER + LH5801_PU: info->i = cpustate->pu; break;
case CPUINFO_INT_REGISTER + LH5801_DP: info->i = cpustate->dp; break;
/* --- the following bits of info are returned as pointers to data or functions --- */
case CPUINFO_PTR_SET_INFO: info->setinfo = CPU_SET_INFO_NAME(lh5801); break;
case CPUINFO_PTR_GET_CONTEXT: info->getcontext = CPU_GET_CONTEXT_NAME(lh5801); break;
case CPUINFO_PTR_SET_CONTEXT: info->setcontext = CPU_SET_CONTEXT_NAME(lh5801); break;
case CPUINFO_PTR_GET_CONTEXT: info->getcontext = CPU_GET_CONTEXT_NAME(dummy); break;
case CPUINFO_PTR_SET_CONTEXT: info->setcontext = CPU_SET_CONTEXT_NAME(dummy); break;
case CPUINFO_PTR_INIT: info->init = CPU_INIT_NAME(lh5801); break;
case CPUINFO_PTR_RESET: info->reset = CPU_RESET_NAME(lh5801); break;
case CPUINFO_PTR_EXIT: info->exit = NULL; break;
case CPUINFO_PTR_EXECUTE: info->execute = CPU_EXECUTE_NAME(lh5801); break;
case CPUINFO_PTR_BURN: info->burn = NULL; break;
case CPUINFO_PTR_DISASSEMBLE: info->disassemble = CPU_DISASSEMBLE_NAME(lh5801); break;
case CPUINFO_PTR_INSTRUCTION_COUNTER: info->icount = &lh5801_icount; break;
case CPUINFO_PTR_INSTRUCTION_COUNTER: info->icount = &cpustate->icount; break;
/* --- the following bits of info are returned as NULL-terminated strings --- */
case CPUINFO_STR_NAME: strcpy(info->s, "LH5801"); break;
@ -247,28 +240,28 @@ CPU_GET_INFO( lh5801 )
case CPUINFO_STR_FLAGS:
sprintf(info->s, "%s%s%s%s%s%s%s%s",
lh5801.t&0x80?"1":"0",
lh5801.t&0x40?"1":"0",
lh5801.t&0x20?"1":"0",
lh5801.t&0x10?"H":".",
lh5801.t&8?"V":".",
lh5801.t&4?"Z":".",
lh5801.t&2?"I":".",
lh5801.t&1?"C":".");
cpustate->t&0x80?"1":"0",
cpustate->t&0x40?"1":"0",
cpustate->t&0x20?"1":"0",
cpustate->t&0x10?"H":".",
cpustate->t&8?"V":".",
cpustate->t&4?"Z":".",
cpustate->t&2?"I":".",
cpustate->t&1?"C":".");
break;
case CPUINFO_STR_REGISTER + LH5801_P: sprintf(info->s, "P:%04X", lh5801.p.w.l); break;
case CPUINFO_STR_REGISTER + LH5801_S: sprintf(info->s, "S:%04X", lh5801.s.w.l); break;
case CPUINFO_STR_REGISTER + LH5801_U: sprintf(info->s, "U:%04X", lh5801.u.w.l); break;
case CPUINFO_STR_REGISTER + LH5801_X: sprintf(info->s, "X:%04X", lh5801.x.w.l); break;
case CPUINFO_STR_REGISTER + LH5801_Y: sprintf(info->s, "Y:%04X", lh5801.y.w.l); break;
case CPUINFO_STR_REGISTER + LH5801_T: sprintf(info->s, "T:%02X", lh5801.t); break;
case CPUINFO_STR_REGISTER + LH5801_A: sprintf(info->s, "A:%02X", lh5801.a); break;
case CPUINFO_STR_REGISTER + LH5801_TM: sprintf(info->s, "TM:%03X", lh5801.tm); break;
case CPUINFO_STR_REGISTER + LH5801_IN: sprintf(info->s, "IN:%02X", lh5801.config->in()); break;
case CPUINFO_STR_REGISTER + LH5801_PV: sprintf(info->s, "PV:%04X", lh5801.pv); break;
case CPUINFO_STR_REGISTER + LH5801_PU: sprintf(info->s, "PU:%04X", lh5801.pu); break;
case CPUINFO_STR_REGISTER + LH5801_BF: sprintf(info->s, "BF:%04X", lh5801.bf); break;
case CPUINFO_STR_REGISTER + LH5801_DP: sprintf(info->s, "DP:%04X", lh5801.dp); break;
case CPUINFO_STR_REGISTER + LH5801_P: sprintf(info->s, "P:%04X", cpustate->p.w.l); break;
case CPUINFO_STR_REGISTER + LH5801_S: sprintf(info->s, "S:%04X", cpustate->s.w.l); break;
case CPUINFO_STR_REGISTER + LH5801_U: sprintf(info->s, "U:%04X", cpustate->u.w.l); break;
case CPUINFO_STR_REGISTER + LH5801_X: sprintf(info->s, "X:%04X", cpustate->x.w.l); break;
case CPUINFO_STR_REGISTER + LH5801_Y: sprintf(info->s, "Y:%04X", cpustate->y.w.l); break;
case CPUINFO_STR_REGISTER + LH5801_T: sprintf(info->s, "T:%02X", cpustate->t); break;
case CPUINFO_STR_REGISTER + LH5801_A: sprintf(info->s, "A:%02X", cpustate->a); break;
case CPUINFO_STR_REGISTER + LH5801_TM: sprintf(info->s, "TM:%03X", cpustate->tm); break;
case CPUINFO_STR_REGISTER + LH5801_IN: sprintf(info->s, "IN:%02X", cpustate->config->in(device)); break;
case CPUINFO_STR_REGISTER + LH5801_PV: sprintf(info->s, "PV:%04X", cpustate->pv); break;
case CPUINFO_STR_REGISTER + LH5801_PU: sprintf(info->s, "PU:%04X", cpustate->pu); break;
case CPUINFO_STR_REGISTER + LH5801_BF: sprintf(info->s, "BF:%04X", cpustate->bf); break;
case CPUINFO_STR_REGISTER + LH5801_DP: sprintf(info->s, "DP:%04X", cpustate->dp); break;
}
}

6
src/emu/cpu/lh5801/lh5801.h
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@ -1,6 +1,6 @@
/*****************************************************************************
*
* lh5801.h
* cpustate->h
* portable lh5801 emulator interface
*
* Copyright Peter Trauner, all rights reserved.
@ -66,10 +66,12 @@ pc 8bit
#include "cpuintrf.h"
typedef UINT8 (*lh5801_in_func)(const device_config *device);
typedef struct _lh5801_cpu_core lh5801_cpu_core;
struct _lh5801_cpu_core
{
UINT8 (*in)(void);
lh5801_in_func in;
};
#define LH5801_INT_NONE 0