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ARM: preliminary SA-1110 support

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This commit is contained in:
R. Belmont 2010-01-23 03:40:02 +00:00
parent eaf0d1b924
commit 0f6b9fc7a8
2 changed files with 36 additions and 1 deletions
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32
src/emu/cpu/arm7/arm7.c
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@ -260,6 +260,17 @@ static CPU_RESET( pxa255 )
cpustate->archFlags = eARM_ARCHFLAGS_T | eARM_ARCHFLAGS_E | eARM_ARCHFLAGS_XSCALE; // has TE and XScale extensions
}
static CPU_RESET( sa1110 )
{
arm_state *cpustate = get_safe_token(device);
// must call core reset
arm7_core_reset(device);
cpustate->archRev = 4; // ARMv4
cpustate->archFlags = eARM_ARCHFLAGS_SA; // has StrongARM, no Thumb, no Enhanced DSP
}
static CPU_EXIT( arm7 )
{
/* nothing to do here */
@ -566,6 +577,17 @@ CPU_GET_INFO( pxa255 )
}
}
CPU_GET_INFO( sa1110 )
{
switch (state)
{
case CPUINFO_FCT_RESET: info->reset = CPU_RESET_NAME(sa1110); break;
case DEVINFO_STR_NAME: strcpy(info->s, "SA1110"); break;
default: CPU_GET_INFO_CALL(arm7);
break;
}
}
/* ARM system coprocessor support */
static WRITE32_DEVICE_HANDLER( arm7_do_callback )
@ -638,7 +660,17 @@ static READ32_DEVICE_HANDLER( arm7_rt_r_callback )
break;
case 4: // ARM7/SA11xx
if (cpustate->archFlags & eARM_ARCHFLAGS_SA)
{
// ARM Architecture Version 4
// Part Number 0xB11 (SA1110)
// Stepping B5
data = 0x69 | ( 0x01 << 16 ) | ( 0xB11 << 4 ) | 0x9;
}
else
{
data = 0x41 | (1 << 23) | (7 << 12);
}
break;
case 5: // ARM9/10/XScale

3
src/emu/cpu/arm7/arm7.h
View File

@ -46,4 +46,7 @@ extern CPU_GET_INFO( arm9 );
extern CPU_GET_INFO( pxa255 );
#define CPU_PXA255 CPU_GET_INFO_NAME( pxa255 )
extern CPU_GET_INFO( sa1110 );
#define CPU_SA1110 CPU_GET_INFO_NAME( sa1110 )
#endif /* __ARM7_H__ */