9312de19ac
Changes since v0.7 : - Major CPU reorganisation. This has possibly broken some stuff, though I fixed all the regressions I could find - Lazy flags. This brought 10% speed improvement at one point, but that's probably been lost now - 430 VX chipset emulation - IDT Winchip emulation (currently sans MMX). Timing is probably wrong - Fixed a few FPU bugs - Timer reorganisation - Sound reorganisation - Other general reorganisation - AdLib Gold emulation - Windows Sound System emulation - Pro Audio Spectrum 16 emulation. This currently works with most DOS stuff, but not in Windows - Major improvements to GUS emulation. Has the downside that it now conflicts with SB emulation, so probably best to not enable both simultaneously - New graphics cards : - ATI-18800 (VGA Edge-16) - ATI-28800 (VGA Charger) - ATI Mach64GX (Graphics Pro Turbo). Quite a few features missing, but Windows doesn't seem to use half the features of this card - Cirrus Logic CL-GD5429. Blitter is a bit broken - Oak OTI-067 - S3 Trio64 (Number Nine 9FX) - S3 Virge. Only framebuffer stuff at the minute, Windows won't recognise the card - Trident TGUI-9440 - VGA. Doesn't work yet - Beginnings of 3DFX emulation, however this is in extremely early stages and doesn't do anything useful - Fixed DMA bug stopping floppy drives working in Windows 3.x - Fixed some other stuff probably - Broke some other stuff probably as well
99 lines
1.8 KiB
C
99 lines
1.8 KiB
C
uint16_t oldcs;
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uint32_t oldpc;
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extern uint32_t rmdat32;
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int oldcpl;
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int tempc;
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int cycles,output;
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int ssegs;
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int firstrepcycle;
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uint32_t easeg,eaaddr,ealimit,ealimitw;
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int rm,reg,mod,rmdat;
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int skipnextprint;
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int inhlt;
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uint8_t opcode;
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int ins,noint;
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uint16_t lastcs,lastpc;
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int timetolive,keyboardtimer;
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#define setznp168 setznp16
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#define getr8(r) ((r&4)?regs[r&3].b.h:regs[r&3].b.l)
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#define getr16(r) regs[r].w
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#define getr32(r) regs[r].l
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#define setr8(r,v) if (r&4) regs[r&3].b.h=v; \
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else regs[r&3].b.l=v;
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#define setr16(r,v) regs[r].w=v
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#define setr32(r,v) regs[r].l=v
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uint8_t znptable8[256];
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uint16_t znptable16[65536];
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int use32;
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int stack32;
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#define fetchea() { rmdat=readmemb(cs+pc); pc++; \
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reg=(rmdat>>3)&7; \
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mod=(rmdat>>6)&3; \
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rm=rmdat&7; \
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if (mod!=3) fetcheal(); }
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int optype;
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#define JMP 1
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#define CALL 2
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#define IRET 3
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#define INT 4
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uint32_t oxpc;
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extern uint16_t *mod1add[2][8];
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extern uint32_t *mod1seg[8];
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#define IRQTEST ((flags&I_FLAG) && (pic.pend&~pic.mask) && !ssegs && !noint)
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extern int cgate32;
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extern uint32_t *eal_r, *eal_w;
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extern uint32_t flags_zn;
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extern uint8_t flags_p;
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#define FLAG_N (flags_zn>>31)
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#define FLAG_Z (flags_zn)
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#define FLAG_P (znptable8[flags_p]&P_FLAG)
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extern int gpf;
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enum
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{
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ABRT_NONE = 0,
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ABRT_GEN,
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ABRT_TS = 0xA,
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ABRT_NP = 0xB,
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ABRT_SS = 0xC,
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ABRT_GPF = 0xD,
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ABRT_PF = 0xE
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};
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extern int abrt;
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extern uint32_t abrt_error;
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void x86_doabrt(int x86_abrt);
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extern uint8_t opcode2;
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extern uint16_t rds;
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extern uint32_t rmdat32;
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extern int inscounts[256];
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void x86illegal();
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