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Partially working switch to having a vcounter and hslot counter in the context rather than trying to derive them from the cycle count. This should allow for more accurate handling of mid screen mode switches. Interrupt timing is broken currently though
author Michael Pavone <pavone@retrodev.com>
date Tue, 17 Jun 2014 19:01:01 -0700
parents 0bf5e6b672fe
children 96489fb27dbf
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 * test_rr(uint8_t * out, uint8_t src, uint8_t dst, uint8_t size);
uint8_t * test_ir(uint8_t * out, int32_t val, uint8_t dst, uint8_t size);
uint8_t * test_irdisp8(uint8_t * out, int32_t val, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * test_rrdisp8(uint8_t * out, uint8_t src, uint8_t dst_base, int8_t disp, uint8_t size);
uint8_t * test_rdisp8r(uint8_t * out, uint8_t src_base, int8_t disp, uint8_t dst, 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_