np2/i286x/i286xrep.cpp - view

File: [RetroPC.NET] / np2 / i286x / i286xrep.cpp
Revision 1.6: download - view: text, annotated - select for diffs
Thu Mar 24 11:21:21 2005 JST (20 years, 7 months ago) by yui
Branches: MAIN
CVS tags: VER_0_82_x64, VER_0_82, VER_0_81A, VER_0_81, HEAD

fix 80286(x86ver) fix rep ins, mov8, enter (T.Yui)

#include "compiler.h" #include "cpucore.h" #include "i286x.h" #include "i286xs.h" #include "i286xrep.h" #include "pccore.h" #include "iocore.h" #include "i286x.mcr" #include "i286xea.mcr" #define LOAD_DS_SI \ __asm { mov edi, DS_FIX } \ __asm { movzx ebp, I286_SI } #define REPLOOP(a) \ __asm { cmp I286_REMCLOCK, 0 } \ __asm { jg (a) } \ __asm { mov esi, I286_REPPOSBAK } // ---------------------------------------------------------------------- ins I286EXT rep_xinsb(void) { __asm { cmp I286_CX, 0 je insb_ed mov edi, ES_BASE movzx ebp, I286_DI align 4 insb_lp: I286CLOCK(4) #if 1 movzx ecx, I286_DX call iocore_inp8 #else mov cx, I286_DX call i286_in #endif lea ecx, [edi + ebp] mov dl, al call i286_memorywrite STRING_DIR add bp, ax dec I286_CX je insb_cnt REPLOOP(insb_lp) mov I286_DI, bp RESET_XPREFETCH ret insb_cnt: mov I286_DI, bp insb_ed: I286CLOCK(5) GET_NEXTPRE1 ret } } I286EXT rep_xinsw(void) { __asm { cmp I286_CX, 0 je insw_ed mov edi, ES_BASE movzx ebp, I286_DI align 4 insw_lp: I286CLOCK(4) movzx ecx, I286_DX call iocore_inp16 lea ecx, [edi + ebp] mov dx, ax call i286_memorywrite_w STRING_DIRx2 add bp, ax dec I286_CX je insw_cnt REPLOOP(insw_lp) mov I286_DI, bp RESET_XPREFETCH ret insw_cnt: mov I286_DI, bp insw_ed: I286CLOCK(5) GET_NEXTPRE1 ret } } // ---------------------------------------------------------------------- outs I286EXT rep_xoutsb(void) { __asm { cmp I286_CX, 0 je outsb_ed LOAD_DS_SI align 4 outsb_lp: I286CLOCK(4) lea ecx, [edi + ebp] call i286_memoryread #if 1 movzx ecx, I286_DX mov dl, al call iocore_out8 #else mov cx, I286_DX mov dl, al call i286_out #endif STRING_DIR add bp, ax dec I286_CX je outsb_cnt REPLOOP(outsb_lp) mov I286_SI, bp RESET_XPREFETCH ret outsb_cnt: mov I286_SI, bp outsb_ed: I286CLOCK(5) GET_NEXTPRE1 ret } } I286EXT rep_xoutsw(void) { __asm { cmp I286_CX, 0 je outsw_ed LOAD_DS_SI align 4 outsw_lp: I286CLOCK(4) lea ecx, [edi + ebp] call i286_memoryread_w movzx ecx, I286_DX mov dx, ax call iocore_out16 STRING_DIRx2 add bp, ax dec I286_CX je outsw_cnt REPLOOP(outsw_lp) mov I286_SI, bp RESET_XPREFETCH ret outsw_cnt: mov I286_SI, bp outsw_ed: I286CLOCK(5) GET_NEXTPRE1 ret } } // ---------------------------------------------------------------------- movs I286EXT rep_xmovsb(void) { __asm { cmp I286_CX, 0 je movsb_ed push esi push ebx LOAD_DS_SI mov esi, ES_BASE movzx ebx, I286_DI align 4 movsb_lp: I286CLOCK(4) lea ecx, [edi + ebp] call i286_memoryread mov edx, eax lea ecx, [esi + ebx] call i286_memorywrite STRING_DIR add bp, ax add bx, ax dec I286_CX je movsb_cnt REPLOOP(movsb_lp) mov I286_SI, bp mov I286_DI, bx pop ebx pop ecx RESET_XPREFETCH ret movsb_cnt: mov I286_SI, bp mov I286_DI, bx pop ebx pop esi movsb_ed: I286CLOCK(5) GET_NEXTPRE1 ret } } I286EXT rep_xmovsw(void) { __asm { cmp I286_CX, 0 je movsw_ed push esi push ebx LOAD_DS_SI mov esi, ES_BASE movzx ebx, I286_DI align 4 movsw_lp: I286CLOCK(4) lea ecx, [edi + ebp] call i286_memoryread_w mov edx, eax lea ecx, [esi + ebx] call i286_memorywrite_w STRING_DIRx2 add bp, ax add bx, ax dec I286_CX je movsw_cnt REPLOOP(movsw_lp) mov I286_SI, bp mov I286_DI, bx pop ebx pop ecx RESET_XPREFETCH ret movsw_cnt: mov I286_SI, bp mov I286_DI, bx pop ebx pop esi movsw_ed: I286CLOCK(5) GET_NEXTPRE1 ret } } // ---------------------------------------------------------------------- lods I286EXT rep_xlodsb(void) { __asm { cmp I286_CX, 0 je lodsb_ed LOAD_DS_SI align 4 lodsb_lp: I286CLOCK(4) lea ecx, [edi + ebp] call i286_memoryread mov I286_AL, al STRING_DIR add bp, ax dec I286_CX je lodsb_cnt REPLOOP(lodsb_lp) mov I286_SI, bp RESET_XPREFETCH ret lodsb_cnt: mov I286_SI, bp lodsb_ed: I286CLOCK(5) GET_NEXTPRE1 ret } } I286EXT rep_xlodsw(void) { __asm { cmp I286_CX, 0 je lodsw_ed LOAD_DS_SI align 4 lodsw_lp: I286CLOCK(4) lea ecx, [edi + ebp] call i286_memoryread_w mov I286_AX, ax STRING_DIRx2 add bp, ax dec I286_CX je lodsw_cnt REPLOOP(lodsw_lp) mov I286_SI, bp RESET_XPREFETCH ret lodsw_cnt: mov I286_SI, bp lodsw_ed: I286CLOCK(5) GET_NEXTPRE1 ret } } // ---------------------------------------------------------------------- stos I286EXT rep_xstosb(void) { __asm { cmp I286_CX, 0 je stosb_ed mov edi, ES_BASE movzx ebp, I286_DI align 4 stosb_lp: I286CLOCK(3) lea ecx, [edi + ebp] mov dl, I286_AL call i286_memorywrite STRING_DIR add bp, ax dec I286_CX je stosb_cnt REPLOOP(stosb_lp) mov I286_DI, bp RESET_XPREFETCH ret stosb_cnt: mov I286_DI, bp stosb_ed: I286CLOCK(4) GET_NEXTPRE1 ret } } I286EXT rep_xstosw(void) { __asm { cmp I286_CX, 0 je stosw_ed mov edi, ES_BASE movzx ebp, I286_DI align 4 stosw_lp: I286CLOCK(3) lea ecx, [edi + ebp] mov dx, I286_AX call i286_memorywrite_w STRING_DIRx2 add bp, ax dec I286_CX je stosw_cnt REPLOOP(stosw_lp) mov I286_DI, bp RESET_XPREFETCH ret stosw_cnt: mov I286_DI, bp stosw_ed: I286CLOCK(4) GET_NEXTPRE1 ret } } // ---------------------------------------------------------------------- cmps I286EXT repe_xcmpsb(void) { __asm { cmp I286_CX, 0 je cmpsb_ed push esi push ebx LOAD_DS_SI mov esi, ES_BASE movzx ebx, I286_DI zcmpsb_lp: I286CLOCK(9) lea ecx, [edi + ebp] call i286_memoryread mov dl, al lea ecx, [esi + ebx] call i286_memoryread cmp dl, al FLAG_STORE_OF STRING_DIR add bp, ax add bx, ax dec I286_CX je zcmpsb_ed test I286_FLAG, Z_FLAG jne zcmpsb_lp zcmpsb_ed: mov I286_SI, bp mov I286_DI, bx pop ebx pop esi cmpsb_ed: I286CLOCK(5) GET_NEXTPRE1 ret } } I286EXT repne_xcmpsb(void) { __asm { cmp I286_CX, 0 je cmpsb_ed push esi push ebx LOAD_DS_SI mov esi, ES_BASE movzx ebx, I286_DI nzcmpsb_lp: I286CLOCK(9) lea ecx, [edi + ebp] call i286_memoryread mov dl, al lea ecx, [esi + ebx] call i286_memoryread cmp dl, al FLAG_STORE_OF STRING_DIR add bp, ax add bx, ax dec I286_CX je nzcmpsb_ed test I286_FLAG, Z_FLAG je nzcmpsb_lp nzcmpsb_ed: mov I286_SI, bp mov I286_DI, bx pop ebx pop esi cmpsb_ed: I286CLOCK(5) GET_NEXTPRE1 ret } } I286EXT repe_xcmpsw(void) { __asm { cmp I286_CX, 0 je cmpsw_ed push esi push ebx LOAD_DS_SI mov esi, ES_BASE movzx ebx, I286_DI zcmpsw_lp: I286CLOCK(9) lea ecx, [edi + ebp] call i286_memoryread_w mov dx, ax lea ecx, [esi + ebx] call i286_memoryread_w cmp dx, ax FLAG_STORE_OF STRING_DIRx2 add bp, ax add bx, ax dec I286_CX je zcmpsw_ed test I286_FLAG, Z_FLAG jne zcmpsw_lp zcmpsw_ed: mov I286_SI, bp mov I286_DI, bx pop ebx pop esi cmpsw_ed: I286CLOCK(5) GET_NEXTPRE1 ret } } I286EXT repne_xcmpsw(void) { __asm { cmp I286_CX, 0 je cmpsw_ed push esi push ebx LOAD_DS_SI mov esi, ES_BASE movzx ebx, I286_DI nzcmpsw_lp: I286CLOCK(9) lea ecx, [edi + ebp] call i286_memoryread_w mov dx, ax lea ecx, [esi + ebx] call i286_memoryread_w cmp dx, ax FLAG_STORE_OF STRING_DIRx2 add bp, ax add bx, ax dec I286_CX je nzcmpsw_ed test I286_FLAG, Z_FLAG je nzcmpsw_lp nzcmpsw_ed: mov I286_SI, bp mov I286_DI, bx pop ebx pop esi cmpsw_ed: I286CLOCK(5) GET_NEXTPRE1 ret } } // ---------------------------------------------------------------------- scas I286EXT repe_xscasb(void) { __asm { cmp I286_CX, 0 je scasb_ed mov edi, ES_BASE movzx ebp, I286_DI zscasb_lp: I286CLOCK(8) lea ecx, [edi + ebp] call i286_memoryread cmp I286_AL, al FLAG_STORE_OF STRING_DIR add bp, ax dec I286_CX je zscasb_ed test I286_FLAG, Z_FLAG jne zscasb_lp zscasb_ed: mov I286_DI, bp scasb_ed: I286CLOCK(5) GET_NEXTPRE1 ret } } I286EXT repne_xscasb(void) { __asm { cmp I286_CX, 0 je scasb_ed mov edi, ES_BASE movzx ebp, I286_DI nzscasb_lp: I286CLOCK(8) lea ecx, [edi + ebp] call i286_memoryread cmp I286_AL, al FLAG_STORE_OF STRING_DIR add bp, ax dec I286_CX je nzscasb_ed test I286_FLAG, Z_FLAG je nzscasb_lp nzscasb_ed: mov I286_DI, bp scasb_ed: I286CLOCK(5) GET_NEXTPRE1 ret } } I286EXT repe_xscasw(void) { __asm { cmp I286_CX, 0 je scasw_ed mov edi, ES_BASE movzx ebp, I286_DI zscasw_lp: I286CLOCK(8) lea ecx, [edi + ebp] call i286_memoryread_w cmp I286_AX, ax FLAG_STORE_OF STRING_DIRx2 add bp, ax dec I286_CX je zscasw_ed test I286_FLAG, Z_FLAG jne zscasw_lp zscasw_ed: mov I286_DI, bp scasw_ed: I286CLOCK(5) GET_NEXTPRE1 ret } } I286EXT repne_xscasw(void) { __asm { cmp I286_CX, 0 je scasw_ed mov edi, ES_BASE movzx ebp, I286_DI nzscasw_lp: I286CLOCK(8) lea ecx, [edi + ebp] call i286_memoryread_w cmp I286_AX, ax FLAG_STORE_OF STRING_DIRx2 add bp, ax dec I286_CX je nzscasw_ed test I286_FLAG, Z_FLAG je nzscasw_lp nzscasw_ed: mov I286_DI, bp scasw_ed: I286CLOCK(5) GET_NEXTPRE1 ret } }