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Fix DMA fill so that it does not cause observable changes to the FIFO. Get DMA copy mostly correct from an observable ffect perspective. DMA copy probably does not reflect internal implementation still given that evidence seems to suggest no FIFO usage at all.
author Mike Pavone <pavone@retrodev.com>
date Tue, 17 Sep 2013 00:11:45 -0700
parents 140af5509ce7
children 0bf5e6b672fe
line wrap: on
line source

/*
 Copyright 2013 Michael Pavone
 This file is part of BlastEm. 
 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text.
*/
#ifndef GEN_X86_H_
#define GEN_X86_H_

#include <stdint.h>

enum {
	RAX = 0,
	RCX,
	RDX,
	RBX,
	RSP,
	RBP,
	RSI,
	RDI,
	AH,
	CH,
	DH,
	BH,
	R8,
	R9,
	R10,
	R11,
	R12,
	R13,
	R14,
	R15
} x86_regs;

enum {
	CC_O = 0,
	CC_NO,
	CC_C,
	CC_NC,
	CC_Z,
	CC_NZ,
	CC_BE,
	CC_A,
	CC_S,
	CC_NS,
	CC_P,
	CC_NP,
	CC_L,
	CC_GE,
	CC_LE,
	CC_G
} x86_cc;

enum {
	SZ_B = 0,
	SZ_W,
	SZ_D,
	SZ_Q
} x86_size;

enum {
	MODE_REG_INDIRECT = 0,
	MODE_REG_INDEXED = 4,
	MODE_REG_DISPLACE8 = 0x40,
	MODE_REG_INDEXED_DISPLACE8 = 0x44,
	MODE_REG_DISPLACE32 = 0x80,
	MODE_REG_INDEXED_DIPSLACE32 = 0x84,
	MODE_REG_DIRECT = 0xC0,
//"phony" mode
	MODE_IMMED = 0xFF
} x86_modes;


uint8_t * rol_ir(uint8_t * out, uint8_t val, uint8_t dst, uint8_t size);
uint8_t * ror_ir(uint8_t * out, uint8_t val, uint8_t dst, uint8_t size);
uint8_t * rcl_ir(uint8_t * out, uint8_t val, uint8_t dst, uint8_t size);
uint8_t * rcr_ir(uint8_t * out, uint8_t val, uint8_t dst, uint8_t size);
uint8_t * shl_ir(uint8_t * out, uint8_t val, uint8_t dst, uint8_t size);
uint8_t * shr_ir(uint8_t * out, uint8_t val, uint8_t dst, uint8_t size);
uint8_t * sar_ir(uint8_t * out, uint8_t val, uint8_t dst, uint8_t size);
uint8_t * rol_irdisp8(uint8_t * out, uint8_t val, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * ror_irdisp8(uint8_t * out, uint8_t val, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * rcl_irdisp8(uint8_t * out, uint8_t val, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * rcr_irdisp8(uint8_t * out, uint8_t val, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * shl_irdisp8(uint8_t * out, uint8_t val, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * shr_irdisp8(uint8_t * out, uint8_t val, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * sar_irdisp8(uint8_t * out, uint8_t val, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * rol_clr(uint8_t * out, uint8_t dst, uint8_t size);
uint8_t * ror_clr(uint8_t * out, uint8_t dst, uint8_t size);
uint8_t * rcl_clr(uint8_t * out, uint8_t dst, uint8_t size);
uint8_t * rcr_clr(uint8_t * out, uint8_t dst, uint8_t size);
uint8_t * shl_clr(uint8_t * out, uint8_t dst, uint8_t size);
uint8_t * shr_clr(uint8_t * out, uint8_t dst, uint8_t size);
uint8_t * sar_clr(uint8_t * out, uint8_t dst, uint8_t size);
uint8_t * rol_clrdisp8(uint8_t * out, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * ror_clrdisp8(uint8_t * out, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * rcl_clrdisp8(uint8_t * out, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * rcr_clrdisp8(uint8_t * out, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * shl_clrdisp8(uint8_t * out, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * shr_clrdisp8(uint8_t * out, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * sar_clrdisp8(uint8_t * out, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * add_rr(uint8_t * out, uint8_t src, uint8_t dst, uint8_t size);
uint8_t * adc_rr(uint8_t * out, uint8_t src, uint8_t dst, uint8_t size);
uint8_t * or_rr(uint8_t * out, uint8_t src, uint8_t dst, uint8_t size);
uint8_t * xor_rr(uint8_t * out, uint8_t src, uint8_t dst, uint8_t size);
uint8_t * and_rr(uint8_t * out, uint8_t src, uint8_t dst, uint8_t size);
uint8_t * sub_rr(uint8_t * out, uint8_t src, uint8_t dst, uint8_t size);
uint8_t * sbb_rr(uint8_t * out, uint8_t src, uint8_t dst, uint8_t size);
uint8_t * cmp_rr(uint8_t * out, uint8_t src, uint8_t dst, uint8_t size);
uint8_t * add_ir(uint8_t * out, int32_t val, uint8_t dst, uint8_t size);
uint8_t * adc_ir(uint8_t * out, int32_t val, uint8_t dst, uint8_t size);
uint8_t * or_ir(uint8_t * out, int32_t val, uint8_t dst, uint8_t size);
uint8_t * xor_ir(uint8_t * out, int32_t val, uint8_t dst, uint8_t size);
uint8_t * and_ir(uint8_t * out, int32_t val, uint8_t dst, uint8_t size);
uint8_t * sub_ir(uint8_t * out, int32_t val, uint8_t dst, uint8_t size);
uint8_t * sbb_ir(uint8_t * out, int32_t val, uint8_t dst, uint8_t size);
uint8_t * cmp_ir(uint8_t * out, int32_t val, uint8_t dst, uint8_t size);
uint8_t * add_irdisp8(uint8_t * out, int32_t val, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * add_irdisp32(uint8_t * out, int32_t val, uint8_t dst_base, int32_t disp, uint8_t size);
uint8_t * adc_irdisp8(uint8_t * out, int32_t val, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * or_irdisp8(uint8_t * out, int32_t val, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * xor_irdisp8(uint8_t * out, int32_t val, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * and_irdisp8(uint8_t * out, int32_t val, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * sub_irdisp8(uint8_t * out, int32_t val, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * sbb_irdisp8(uint8_t * out, int32_t val, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * cmp_irdisp8(uint8_t * out, int32_t val, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * add_rrdisp8(uint8_t * out, uint8_t src, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * adc_rrdisp8(uint8_t * out, uint8_t src, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * add_rdisp8r(uint8_t * out, uint8_t src_base, int8_t disp, uint8_t dst, uint8_t size);
uint8_t * adc_rdisp8r(uint8_t * out, uint8_t src_base, int8_t disp, uint8_t dst, uint8_t size);
uint8_t * or_rrdisp8(uint8_t * out, uint8_t src, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * or_rdisp8r(uint8_t * out, uint8_t src_base, int8_t disp, uint8_t dst, uint8_t size);
uint8_t * xor_rrdisp8(uint8_t * out, uint8_t src, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * xor_rdisp8r(uint8_t * out, uint8_t src_base, int8_t disp, uint8_t dst, uint8_t size);
uint8_t * and_rrdisp8(uint8_t * out, uint8_t src, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * and_rdisp8r(uint8_t * out, uint8_t src_base, int8_t disp, uint8_t dst, uint8_t size);
uint8_t * sub_rrdisp8(uint8_t * out, uint8_t src, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * sub_rdisp8r(uint8_t * out, uint8_t src_base, int8_t disp, uint8_t dst, uint8_t size);
uint8_t * sbb_rrdisp8(uint8_t * out, uint8_t src, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * sbb_rdisp8r(uint8_t * out, uint8_t src_base, int8_t disp, uint8_t dst, uint8_t size);
uint8_t * cmp_rrdisp8(uint8_t * out, uint8_t src, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * cmp_rdisp8r(uint8_t * out, uint8_t src_base, int8_t disp, uint8_t dst, uint8_t size);
uint8_t * imul_rr(uint8_t * out, uint8_t src, uint8_t dst, uint8_t size);
uint8_t * imul_rrdisp8(uint8_t * out, uint8_t src, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * imul_rdisp8r(uint8_t * out, uint8_t src_base, int8_t disp, uint8_t dst, uint8_t size);
uint8_t * not_r(uint8_t * out, uint8_t dst, uint8_t size);
uint8_t * neg_r(uint8_t * out, uint8_t dst, uint8_t size);
uint8_t * not_rdisp8(uint8_t * out, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * neg_rdisp8(uint8_t * out, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * mul_r(uint8_t * out, uint8_t dst, uint8_t size);
uint8_t * imul_r(uint8_t * out, uint8_t dst, uint8_t size);
uint8_t * div_r(uint8_t * out, uint8_t dst, uint8_t size);
uint8_t * idiv_r(uint8_t * out, uint8_t dst, uint8_t size);
uint8_t * mul_rdisp8(uint8_t * out, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * imul_rdisp8(uint8_t * out, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * div_rdisp8(uint8_t * out, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * idiv_rdisp8(uint8_t * out, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * mov_rr(uint8_t * out, uint8_t src, uint8_t dst, uint8_t size);
uint8_t * mov_rrdisp8(uint8_t * out, uint8_t src, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * mov_rdisp8r(uint8_t * out, uint8_t src_base, int8_t disp, uint8_t dst, uint8_t size);
uint8_t * mov_rrdisp32(uint8_t * out, uint8_t src, uint8_t dst_base, int32_t disp, uint8_t size);
uint8_t * mov_rdisp32r(uint8_t * out, uint8_t src_base, int32_t disp, uint8_t dst, uint8_t size);
uint8_t * mov_rrindex(uint8_t * out, uint8_t src, uint8_t dst_base, uint8_t dst_index, uint8_t scale, uint8_t size);
uint8_t * mov_rindexr(uint8_t * out, uint8_t src_base, uint8_t src_index, uint8_t scale, uint8_t dst, uint8_t size);
uint8_t * mov_rrind(uint8_t * out, uint8_t src, uint8_t dst, uint8_t size);
uint8_t * mov_rindr(uint8_t * out, uint8_t src, uint8_t dst, uint8_t size);
uint8_t * mov_ir(uint8_t * out, int64_t val, uint8_t dst, uint8_t size);
uint8_t * mov_irdisp8(uint8_t * out, int32_t val, uint8_t dst, int8_t disp, uint8_t size);
uint8_t * mov_irind(uint8_t * out, int32_t val, uint8_t dst, uint8_t size);
uint8_t * movsx_rr(uint8_t * out, uint8_t src, uint8_t dst, uint8_t src_size, uint8_t size);
uint8_t * movsx_rdisp8r(uint8_t * out, uint8_t src, int8_t disp, uint8_t dst, uint8_t src_size, uint8_t size);
uint8_t * movzx_rr(uint8_t * out, uint8_t src, uint8_t dst, uint8_t src_size, uint8_t size);
uint8_t * movzx_rdisp8r(uint8_t * out, uint8_t src, int8_t disp, uint8_t dst, uint8_t src_size, uint8_t size);
uint8_t * xchg_rr(uint8_t * out, uint8_t src, uint8_t dst, uint8_t size);
uint8_t * pushf(uint8_t * out);
uint8_t * popf(uint8_t * out);
uint8_t * push_r(uint8_t * out, uint8_t reg);
uint8_t * pop_r(uint8_t * out, uint8_t reg);
uint8_t * setcc_r(uint8_t * out, uint8_t cc, uint8_t dst);
uint8_t * setcc_rind(uint8_t * out, uint8_t cc, uint8_t dst);
uint8_t * setcc_rdisp8(uint8_t * out, uint8_t cc, uint8_t dst, int8_t disp);
uint8_t * bt_rr(uint8_t * out, uint8_t src, uint8_t dst, uint8_t size);
uint8_t * bt_rrdisp8(uint8_t * out, uint8_t src, uint8_t dst_base, int8_t dst_disp, uint8_t size);
uint8_t * bt_rrdisp32(uint8_t * out, uint8_t src, uint8_t dst_base, int32_t dst_disp, uint8_t size);
uint8_t * bt_ir(uint8_t * out, uint8_t val, uint8_t dst, uint8_t size);
uint8_t * bt_irdisp8(uint8_t * out, uint8_t val, uint8_t dst_base, int8_t dst_disp, uint8_t size);
uint8_t * bts_rr(uint8_t * out, uint8_t src, uint8_t dst, uint8_t size);
uint8_t * bts_rrdisp8(uint8_t * out, uint8_t src, uint8_t dst_base, int8_t dst_disp, uint8_t size);
uint8_t * bts_ir(uint8_t * out, uint8_t val, uint8_t dst, uint8_t size);
uint8_t * bts_irdisp8(uint8_t * out, uint8_t val, uint8_t dst_base, int8_t dst_disp, uint8_t size);
uint8_t * btr_rr(uint8_t * out, uint8_t src, uint8_t dst, uint8_t size);
uint8_t * btr_rrdisp8(uint8_t * out, uint8_t src, uint8_t dst_base, int8_t dst_disp, uint8_t size);
uint8_t * btr_ir(uint8_t * out, uint8_t val, uint8_t dst, uint8_t size);
uint8_t * btr_irdisp8(uint8_t * out, uint8_t val, uint8_t dst_base, int8_t dst_disp, uint8_t size);
uint8_t * btc_rr(uint8_t * out, uint8_t src, uint8_t dst, uint8_t size);
uint8_t * btc_rrdisp8(uint8_t * out, uint8_t src, uint8_t dst_base, int8_t dst_disp, uint8_t size);
uint8_t * btc_ir(uint8_t * out, uint8_t val, uint8_t dst, uint8_t size);
uint8_t * btc_irdisp8(uint8_t * out, uint8_t val, uint8_t dst_base, int8_t dst_disp, uint8_t size);
uint8_t * jcc(uint8_t * out, uint8_t cc, uint8_t *dest);
uint8_t * jmp(uint8_t * out, uint8_t *dest);
uint8_t * jmp_r(uint8_t * out, uint8_t dst);
uint8_t * call(uint8_t * out, uint8_t * fun);
uint8_t * call_r(uint8_t * out, uint8_t dst);
uint8_t * retn(uint8_t * out);
uint8_t * cdq(uint8_t * out);
uint8_t * loop(uint8_t * out, uint8_t * dst);

#endif //GEN_X86_H_