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15994 Revisions

r14869 Sunday 8th April, 2012 at 15:56:44 UTC by R. Belmont
m68k improvements: [Hans Ostermeyer] - Fixed BFINS, BFEXTU, and BFEXTS to fetch 8-bit quantities as 8 bits (corrects Domain/OS 10.3.5 crash on page boundry) - Added SoftFloat log functions and m68k FLOGNP1, FLOGN, FLOG2, and FLOG10 instructions

[src/emu/cpu/m68000]

m68k_in.c m68kfpu.c

src/emu/cpu/m68000/m68kfpu.c
r14868	r14869
1321	1321	m68k->remaining_cycles -= 109;
1322	1322	break;
1323	1323	}
	1324	case 0x06: // FLOGNP1
	1325	{
	1326	REG_FP(m68k)[dst] = floatx80_flognp1 (source);
	1327	SET_CONDITION_CODES(m68k, REG_FP(m68k)[dst]);
	1328	m68k->remaining_cycles -= 594; // for MC68881
	1329	break;
	1330	}
1324	1331	case 0x0e: // FSIN
1325	1332	{
1326	1333	REG_FP(m68k)[dst] = source;
r14868	r14869
1337	1344	m68k->remaining_cycles -= 75;
1338	1345	break;
1339	1346	}
	1347	case 0x14: // FLOGN
	1348	{
	1349	REG_FP(m68k)[dst] = floatx80_flogn (source);
	1350	SET_CONDITION_CODES(m68k, REG_FP(m68k)[dst]);
	1351	m68k->remaining_cycles -= 548; // for MC68881
	1352	break;
	1353	}
	1354	case 0x15: // FLOG10
	1355	{
	1356	REG_FP(m68k)[dst] = floatx80_flog10 (source);
	1357	SET_CONDITION_CODES(m68k, REG_FP(m68k)[dst]);
	1358	m68k->remaining_cycles -= 604; // for MC68881
	1359	break;
	1360	}
	1361	case 0x16: // FLOG2
	1362	{
	1363	REG_FP(m68k)[dst] = floatx80_flog2 (source);
	1364	SET_CONDITION_CODES(m68k, REG_FP(m68k)[dst]);
	1365	m68k->remaining_cycles -= 604; // for MC68881
	1366	break;
	1367	}
1340	1368	case 0x18: // FABS
1341	1369	{
1342	1370	REG_FP(m68k)[dst] = source;

src/emu/cpu/m68000/m68k_in.c
r14868	r14869
2660	2660	}
2661	2661	width = ((width-1) & 31) + 1;
2662	2662
2663		data = (offset+width) < 16 ? (m68ki_read_16((mc68kcpu), ea) << 16) : m68ki_read_32((mc68kcpu), ea);
	2663	data = (offset+width) < 8 ? (m68ki_read_8((mc68kcpu), ea) << 24) :
	2664	(offset+width) < 16 ? (m68ki_read_16((mc68kcpu), ea) << 16) : m68ki_read_32((mc68kcpu), ea);
2664	2665
2665	2666	data = MASK_OUT_ABOVE_32(data<<offset);
2666	2667
r14868	r14869
2745	2746	}
2746	2747	width = ((width-1) & 31) + 1;
2747	2748
2748		data = (offset+width) < 16 ? (m68ki_read_16((mc68kcpu), ea) << 16) : m68ki_read_32((mc68kcpu), ea);
	2749	data = (offset+width) < 8 ? (m68ki_read_8((mc68kcpu), ea) << 24) :
	2750	(offset+width) < 16 ? (m68ki_read_16((mc68kcpu), ea) << 16) : m68ki_read_32((mc68kcpu), ea);
2749	2751	data = MASK_OUT_ABOVE_32(data<<offset);
2750	2752
2751	2753	if((offset+width) > 32)
r14868	r14869
2942	2944	(mc68kcpu)->not_z_flag = insert_base;
2943	2945	insert_long = insert_base >> offset;
2944	2946
2945		data_long = (offset+width) < 16 ? (m68ki_read_16((mc68kcpu), ea) << 16) : m68ki_read_32((mc68kcpu), ea);
	2947	data_long = (offset+width) < 8 ? (m68ki_read_8((mc68kcpu), ea) << 24) :
	2948	(offset+width) < 16 ? (m68ki_read_16((mc68kcpu), ea) << 16) : m68ki_read_32((mc68kcpu), ea);
2946	2949	(mc68kcpu)->v_flag = VFLAG_CLEAR;
2947	2950	(mc68kcpu)->c_flag = CFLAG_CLEAR;
2948	2951
2949		if((width + offset) < 16)
	2952	if((width + offset) < 8)
2950	2953	{
	2954	m68ki_write_8((mc68kcpu), ea, ((data_long & ~mask_long) \| insert_long) >> 24);
	2955	}
	2956	else if((width + offset) < 16)
	2957	{
2951	2958	m68ki_write_16((mc68kcpu), ea, ((data_long & ~mask_long) \| insert_long) >> 16);
2952	2959	}
2953	2960	else

15994 Revisions