From: notaz Date: Fri, 4 May 2007 21:42:57 +0000 (+0000) Subject: asm core fix for Flintstones X-Git-Tag: r1~56 X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0b65fdb3548fd54670265adfb80706e63da6b641;p=fceu.git asm core fix for Flintstones git-svn-id: file:///home/notaz/opt/svn/fceu@124 be3aeb3a-fb24-0410-a615-afba39da0efa --- diff --git a/fce.c b/fce.c index d3a0f61..a5cc4b0 100644 --- a/fce.c +++ b/fce.c @@ -586,7 +586,7 @@ static void Loop6502(void) #endif if(ScreenON) { - if(scanline>=FSettings.FirstSLine && scanline<=Settings.LastSLine) + if(scanline>=FSettings.FirstSLine && scanline<=FSettings.LastSLine) BGRender(target); else { @@ -1187,7 +1187,7 @@ void FCEU_ResetVidSys(void) FSettings.FirstSLine=FSettings.UsrFirstSLine[0]; FSettings.LastSLine=FSettings.UsrLastSLine[0]; } - printf("PAL = %i\n", PAL); + printf("ResetVidSys: PAL = %i\n", PAL); SetSoundVariables(); } diff --git a/ncpu.S b/ncpu.S index 8a18b75..0b000ec 100644 --- a/ncpu.S +++ b/ncpu.S @@ -33,7 +33,7 @@ /* bbbb: -.ascii "lsr_a: %02x" +.ascii "ab_a: %04x" .byte 0x0a,0 .align 4 stmfd sp!,{r0-r3,r12,lr} @@ -68,13 +68,16 @@ ldmfd sp!,{r0-r3,r12,lr} @ updates fceu "timestamp" variable -@ loads cycles to reg, reg!=r1, trashes r1 +@ loads cycles to reg, reg!=r1, trashes r1, kills flags .macro FLUSH_TIMESTAMP reg + ands \reg, REG_CYCLE, #0xff + beq 1f ldr r1, [REG_OP_TABLE, #OTOFFS_TIMESTAMP] - and \reg, REG_CYCLE, #0xff + orr REG_CYCLE, REG_CYCLE, \reg, lsl #8 @ put cycles for do_irq_hook add r1, r1, \reg bic REG_CYCLE, REG_CYCLE, #0xff str r1, [REG_OP_TABLE, #OTOFFS_TIMESTAMP] +1: .endm @@ -88,10 +91,12 @@ ldmfd sp!,{r0-r3,r12,lr} @@@ @@@ ¤Ê¤ó¤«Ì¾Á°¤¬ÊѤÀ¤Ê(¤É¡¼¤Ç¤â¤¤¡¼¤±¤É¡¼ @@@ -.macro CYCLE_NEXT n, hook_check=1 +.macro CYCLE_NEXT n, hook_check=1, do_cyc_add=1 @@DEBUG_INFO +.if \do_cyc_add add REG_CYCLE, REG_CYCLE, #\n +.endif subs REG_CYCLE, REG_CYCLE, #\n*48<<16 ble cpu_exec_end .if \hook_check @@ -113,6 +118,12 @@ ldmfd sp!,{r0-r3,r12,lr} b do_int .endm +@ fceu needs timestamp cycles to be inremented before doing actual opcode. +@ this is only needed for ops which do memory i/o +.macro CYCLE_PRE n + add REG_CYCLE, REG_CYCLE, #\n +.endm + @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@ -194,10 +205,12 @@ ldmfd sp!,{r0-r3,r12,lr} @@@ Read byte @@@ -.macro READ +.macro READ rom_optimize=1 adr lr, 1f +.if \rom_optimize tst REG_ADDR, #0x8000 bne read_rom_byte +.endif tst REG_ADDR, #0xe000 bne read_byte @ RAM @@ -269,10 +282,11 @@ ldmfd sp!,{r0-r3,r12,lr} @@@ REG_ADDR¤òÊѹ¹¤¹¤ë¤¬µ¤¤Ë¤¹¤ë¤Ê @@@ .macro READ_WORD - bl read_byte + @ don't do ROM check, because we might be fetching important stuff like vectors + READ 0 mov REG_PC, r0 add REG_ADDR, REG_ADDR, #1 - bl read_byte + READ 0 orr r0, REG_PC, r0, lsl #8 .endm @@ -669,34 +683,39 @@ opB5: @ LDA $nn, X CYCLE_NEXT 4 opAD: @ LDA $nnnn + CYCLE_PRE 4 ABS_ADDR READ OP_LDA - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 opBD: @ LDA $nnnn, X + CYCLE_PRE 4 ABSX_ADDR READ OP_LDA - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 opB9: @ LDA $nnnn, Y + CYCLE_PRE 4 ABSY_ADDR READ OP_LDA - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 opA1: @ LDA ($nn, X) + CYCLE_PRE 6 INDX_ADDR READ OP_LDA - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 opB1: @ LDA ($nn), Y + CYCLE_PRE 5 INDY_ADDR READ OP_LDA - CYCLE_NEXT 5 + CYCLE_NEXT 5,1,0 opA2: @ LDX #$nn IMM_VALUE @@ -716,16 +735,18 @@ opB6: @ LDX $nn, Y CYCLE_NEXT 4 opAE: @ LDX $nnnn + CYCLE_PRE 4 ABS_ADDR READ OP_LDX - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 opBE: @ LDX $nnnn, Y + CYCLE_PRE 4 ABSY_ADDR READ OP_LDX - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 @@ -749,16 +770,18 @@ opB4: @ LDY $nn, X opAC: @ LDY $nnnn + CYCLE_PRE 4 ABS_ADDR READ OP_LDY - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 opBC: @ LDY $nnnn, X + CYCLE_PRE 4 ABSX_ADDR READ OP_LDY - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@ -787,34 +810,39 @@ op95: @ STA $nn, X CYCLE_NEXT 4 op8D: @ STA $nnnn + CYCLE_PRE 4 ABS_ADDR OP_STA WRITE_1 - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 op9D: @ STA $nnnn, X + CYCLE_PRE 5 ABSX_ADDR_W OP_STA WRITE_1 - CYCLE_NEXT 5 + CYCLE_NEXT 5,1,0 op99: @ STA $nnnn, Y + CYCLE_PRE 5 ABSY_ADDR_W OP_STA WRITE_1 - CYCLE_NEXT 5 + CYCLE_NEXT 5,1,0 op81: @ STA ($nn, X) + CYCLE_PRE 6 INDX_ADDR OP_STA WRITE_1 - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 op91: @ STA ($nn), Y + CYCLE_PRE 6 INDY_ADDR_W OP_STA WRITE_1 - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 op86: @ STX $nn @@ -828,10 +856,11 @@ op96: @ STX $nn, Y CYCLE_NEXT 4 op8E: @ STX $nnnn + CYCLE_PRE 4 ABS_ADDR mov r0, REG_X WRITE_1 - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 op84: @ STY $nn @@ -845,10 +874,11 @@ op94: @ STY $nn, X CYCLE_NEXT 4 op8C: @ STY $nnnn + CYCLE_PRE 4 ABS_ADDR mov r0, REG_Y WRITE_1 - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@ -901,26 +931,28 @@ opF6: @ INC $nn, X CYCLE_NEXT 6 opEE: @ INC $nnnn + CYCLE_PRE 6 ABS_ADDR READ_WRITE_1 OP_INC READ_WRITE_2 - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 READ_WRITE_3 OP_INC READ_WRITE_4 - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 opFE: @ INC $nnnn, X + CYCLE_PRE 7 ABSX_ADDR_W READ_WRITE_1 OP_INC READ_WRITE_2 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 READ_WRITE_3 OP_INC READ_WRITE_4 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 opE8: @ INX IMPLIED @@ -947,26 +979,28 @@ opD6: @ DEC $nn, X CYCLE_NEXT 6 opCE: @ DEC $nnnn + CYCLE_PRE 6 ABS_ADDR READ_WRITE_1 OP_DEC READ_WRITE_2 - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 READ_WRITE_3 OP_DEC READ_WRITE_4 - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 opDE: @ DEC $nnnn, X + CYCLE_PRE 7 ABSX_ADDR_W READ_WRITE_1 OP_DEC READ_WRITE_2 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 READ_WRITE_3 OP_DEC READ_WRITE_4 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 opCA: @ DEX IMPLIED @@ -1029,34 +1063,39 @@ op75: @ ADC $nn, X CYCLE_NEXT 4 op6D: @ ADC $nnnn + CYCLE_PRE 4 ABS_ADDR READ OP_ADC - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 op7D: @ ADC $nnnn, X + CYCLE_PRE 4 ABSX_ADDR READ OP_ADC - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 op79: @ ADC $nnnn, Y + CYCLE_PRE 4 ABSY_ADDR READ OP_ADC - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 op61: @ ADC ($nn, X) + CYCLE_PRE 6 INDX_ADDR READ OP_ADC - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 op71: @ ADC ($nn), Y + CYCLE_PRE 5 INDY_ADDR READ OP_ADC - CYCLE_NEXT 5 + CYCLE_NEXT 5,1,0 opEB: @ USBC #$nn opE9: @ SBC #$nn @@ -1077,34 +1116,39 @@ opF5: @ SBC $nn, X CYCLE_NEXT 4 opED: @ SBC $nnnn + CYCLE_PRE 4 ABS_ADDR READ OP_SBC - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 opFD: @ SBC $nnnn, X + CYCLE_PRE 4 ABSX_ADDR READ OP_SBC - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 opF9: @ SBC $nnnn, Y + CYCLE_PRE 4 ABSY_ADDR READ OP_SBC - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 opE1: @ SBC ($nn, X) + CYCLE_PRE 6 INDX_ADDR READ OP_SBC - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 opF1: @ SBC ($nn), Y + CYCLE_PRE 5 INDY_ADDR READ OP_SBC - CYCLE_NEXT 5 + CYCLE_NEXT 5,1,0 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@ -1150,34 +1194,39 @@ op35: @ AND $nn, X CYCLE_NEXT 4 op2D: @ AND $nnnn + CYCLE_PRE 4 ABS_ADDR READ OP_AND - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 op3D: @ AND $nnnn, X + CYCLE_PRE 4 ABSX_ADDR READ OP_AND - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 op39: @ AND $nnnn, Y + CYCLE_PRE 4 ABSY_ADDR READ OP_AND - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 op21: @ AND ($nn, X) + CYCLE_PRE 6 INDX_ADDR READ OP_AND - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 op31: @ AND ($nn), Y + CYCLE_PRE 5 INDY_ADDR READ OP_AND - CYCLE_NEXT 5 + CYCLE_NEXT 5,1,0 op49: @ EOR #$nn @@ -1198,34 +1247,39 @@ op55: @ EOR $nn, X CYCLE_NEXT 4 op4D: @ EOR $nnnn + CYCLE_PRE 4 ABS_ADDR READ OP_EOR - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 op5D: @ EOR $nnnn, X + CYCLE_PRE 4 ABSX_ADDR READ OP_EOR - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 op59: @ EOR $nnnn, Y + CYCLE_PRE 4 ABSY_ADDR READ OP_EOR - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 op41: @ EOR ($nn, X) + CYCLE_PRE 6 INDX_ADDR READ OP_EOR - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 op51: @ EOR ($nn), Y + CYCLE_PRE 5 INDY_ADDR READ OP_EOR - CYCLE_NEXT 5 + CYCLE_NEXT 5,1,0 op09: @ ORA #$nn @@ -1246,34 +1300,39 @@ op15: @ ORA $nn, X CYCLE_NEXT 4 op0D: @ ORA $nnnn + CYCLE_PRE 4 ABS_ADDR READ OP_ORA - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 op1D: @ ORA $nnnn, X + CYCLE_PRE 4 ABSX_ADDR READ OP_ORA - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 op19: @ ORA $nnnn, Y + CYCLE_PRE 4 ABSY_ADDR READ OP_ORA - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 op01: @ ORA ($nn, X) + CYCLE_PRE 6 INDX_ADDR READ OP_ORA - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 op11: @ ORA ($nn), Y + CYCLE_PRE 5 INDY_ADDR READ OP_ORA - CYCLE_NEXT 5 + CYCLE_NEXT 5,1,0 @@ -1328,34 +1387,39 @@ opD5: @ CMP $nn, X CYCLE_NEXT 4 opCD: @ CMP $nnnn + CYCLE_PRE 4 ABS_ADDR READ OP_CMP - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 opDD: @ CMP $nnnn, X + CYCLE_PRE 4 ABSX_ADDR READ OP_CMP - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 opD9: @ CMP $nnnn, Y + CYCLE_PRE 4 ABSY_ADDR READ OP_CMP - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 opC1: @ CMP ($nn, X) + CYCLE_PRE 6 INDX_ADDR READ OP_CMP - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 opD1: @ CMP ($nn), Y + CYCLE_PRE 5 INDY_ADDR READ OP_CMP - CYCLE_NEXT 5 + CYCLE_NEXT 5,1,0 opE0: @ CPX #$nn @@ -1370,10 +1434,11 @@ opE4: @ CPX $nn CYCLE_NEXT 3 opEC: @ CPX $nnnn + CYCLE_PRE 4 ABS_ADDR READ OP_CPX - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 opC0: @ CPY #$nn @@ -1388,10 +1453,11 @@ opC4: @ CPY $nn CYCLE_NEXT 3 opCC: @ CPY $nnnn + CYCLE_PRE 4 ABS_ADDR READ OP_CPY - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@ -1422,10 +1488,11 @@ op24: @ BIT $nn CYCLE_NEXT 3 op2C: @ BIT $nnnn + CYCLE_PRE 4 ABS_ADDR READ OP_BIT - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@ -1488,26 +1555,28 @@ op16: @ ASL $nn, X CYCLE_NEXT 6 op0E: @ ASL $nnnn + CYCLE_PRE 6 ABS_ADDR READ_WRITE_1 OP_ASL READ_WRITE_2 - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 READ_WRITE_3 OP_ASL READ_WRITE_4 - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 op1E: @ ASL $nnnn, X + CYCLE_PRE 7 ABSX_ADDR_W READ_WRITE_1 OP_ASL READ_WRITE_2 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 READ_WRITE_3 OP_ASL READ_WRITE_4 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 op4A: @ LSR A @@ -1530,26 +1599,28 @@ op56: @ LSR $nn, X CYCLE_NEXT 6 op4E: @ LSR $nnnn + CYCLE_PRE 6 ABS_ADDR READ_WRITE_1 OP_LSR READ_WRITE_2 - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 READ_WRITE_3 OP_LSR READ_WRITE_4 - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 op5E: @ LSR $nnnn, X + CYCLE_PRE 7 ABSX_ADDR_W READ_WRITE_1 OP_LSR READ_WRITE_2 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 READ_WRITE_3 OP_LSR READ_WRITE_4 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@ -1617,27 +1688,29 @@ op36: @ ROL $nn, X CYCLE_NEXT 6 op2E: @ ROL $nnnn + CYCLE_PRE 6 ABS_ADDR READ_WRITE_1 OP_ROL READ_WRITE_2 - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 READ_WRITE_3 OP_ROL READ_WRITE_4 - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 op3E: @ ROL $nnnn, X + CYCLE_PRE 7 ABSX_ADDR_W READ_WRITE_1 OP_ROL READ_WRITE_2 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 READ_WRITE_3 OP_ROL READ_WRITE_4 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 op6A: @ ROR A @@ -1660,26 +1733,28 @@ op76: @ ROR $nn, X CYCLE_NEXT 6 op6E: @ ROR $nnnn + CYCLE_PRE 6 ABS_ADDR READ_WRITE_1 OP_ROR READ_WRITE_2 - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 READ_WRITE_3 OP_ROR READ_WRITE_4 - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 op7E: @ ROR $nnnn, X + CYCLE_PRE 7 ABSX_ADDR_W READ_WRITE_1 OP_ROR READ_WRITE_2 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 READ_WRITE_3 OP_ROR READ_WRITE_4 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@ -1876,66 +1951,72 @@ op57: @ SRE $nn, X CYCLE_NEXT 6 op4F: @ SRE $nnnn + CYCLE_PRE 6 ABS_ADDR READ_WRITE_1 OP_SRE READ_WRITE_2 - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 READ_WRITE_3 OP_SRE READ_WRITE_4 - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 op5F: @ SRE $nnnn, X + CYCLE_PRE 7 ABSX_ADDR READ_WRITE_1 OP_SRE READ_WRITE_2 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 READ_WRITE_3 OP_SRE READ_WRITE_4 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 op5B: @ SRE $nnnn, Y + CYCLE_PRE 7 ABSY_ADDR READ_WRITE_1 OP_SRE READ_WRITE_2 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 READ_WRITE_3 OP_SRE READ_WRITE_4 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 op43: @ SRE ($nn, X) + CYCLE_PRE 8 INDX_ADDR READ_WRITE_1 OP_SRE READ_WRITE_2 - CYCLE_NEXT 8 + CYCLE_NEXT 8,1,0 READ_WRITE_3 OP_SRE READ_WRITE_4 - CYCLE_NEXT 8 + CYCLE_NEXT 8,1,0 op53: @ SRE ($nn), Y + CYCLE_PRE 8 INDY_ADDR_W READ_WRITE_1 OP_SRE READ_WRITE_2 - CYCLE_NEXT 8 + CYCLE_NEXT 8,1,0 READ_WRITE_3 OP_SRE READ_WRITE_4 - CYCLE_NEXT 8 + CYCLE_NEXT 8,1,0 op9C: @ SHY $nnnn, X + CYCLE_PRE 5 ABSX_ADDR_W OP_SHY WRITE_1 - CYCLE_NEXT 5 + CYCLE_NEXT 5,1,0 opE7: @ ISB $nn ZERO_ADDR @@ -1954,70 +2035,75 @@ opF7: @ ISB $nn, X CYCLE_NEXT 6 opEF: @ ISB $nnnn + CYCLE_PRE 6 ABS_ADDR READ_WRITE_1 OP_ISB READ_WRITE_2 OP_SBC - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 READ_WRITE_3 OP_ISB READ_WRITE_4 OP_SBC - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 opFF: @ ISB $nnnn,X + CYCLE_PRE 7 ABSX_ADDR READ_WRITE_1 OP_ISB READ_WRITE_2 OP_SBC - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 READ_WRITE_3 OP_ISB READ_WRITE_4 OP_SBC - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 opFB: @ ISB $nnnn, Y + CYCLE_PRE 7 ABSY_ADDR READ_WRITE_1 OP_ISB READ_WRITE_2 OP_SBC - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 READ_WRITE_3 OP_ISB READ_WRITE_4 OP_SBC - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 opE3: @ ISB ($nn, X) + CYCLE_PRE 7 INDX_ADDR READ_WRITE_1 OP_ISB READ_WRITE_2 OP_SBC - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 READ_WRITE_3 OP_ISB READ_WRITE_4 OP_SBC - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 opF3: @ ISB ($nn), Y + CYCLE_PRE 7 INDY_ADDR READ_WRITE_1 OP_ISB READ_WRITE_2 OP_SBC - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 READ_WRITE_3 OP_ISB READ_WRITE_4 OP_SBC - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 opA7: @ LAX $nn ZERO_ADDR @@ -2032,35 +2118,40 @@ opB7: @ LAX $nn, Y CYCLE_NEXT 4 opAF: @ LAX $nnnn + CYCLE_PRE 4 ABS_ADDR READ OP_LAX - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 opBF: @ LAX $nnnn, Y + CYCLE_PRE 4 ABSY_ADDR READ OP_LAX - CYCLE_NEXT 4 + CYCLE_NEXT 4,1,0 opA3: @ LAX ($nn, X) + CYCLE_PRE 6 INDX_ADDR READ OP_LAX - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 opB3: @ LAX ($nn), Y + CYCLE_PRE 5 INDY_ADDR READ OP_LAX - CYCLE_NEXT 5 + CYCLE_NEXT 5,1,0 op07: @ SLO $nn + CYCLE_PRE 5 ZERO_ADDR ZP_READ_W OP_SLO ZP_WRITE_W - CYCLE_NEXT 5 + CYCLE_NEXT 5,1,0 op17: @ SLO $nn, X ZEROX_ADDR @@ -2070,59 +2161,64 @@ op17: @ SLO $nn, X CYCLE_NEXT 6 op0F: @ SLO $nnnn + CYCLE_PRE 6 ABS_ADDR READ_WRITE_1 OP_SLO READ_WRITE_2 - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 READ_WRITE_3 OP_SLO READ_WRITE_4 - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 op1F: @ SLO $nnnn, X + CYCLE_PRE 7 ABSX_ADDR READ_WRITE_1 OP_SLO READ_WRITE_2 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 READ_WRITE_3 OP_SLO READ_WRITE_4 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 op1B: @ SLO $nnnn, Y + CYCLE_PRE 7 ABSY_ADDR_W READ_WRITE_1 OP_SLO READ_WRITE_2 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 READ_WRITE_3 OP_SLO READ_WRITE_4 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 op03: @ SLO ($nn, X) + CYCLE_PRE 8 INDX_ADDR READ_WRITE_1 OP_SLO READ_WRITE_2 - CYCLE_NEXT 8 + CYCLE_NEXT 8,1,0 READ_WRITE_3 OP_SLO READ_WRITE_4 - CYCLE_NEXT 8 + CYCLE_NEXT 8,1,0 op13: @ SLO ($nn), Y + CYCLE_PRE 8 INDY_ADDR_W READ_WRITE_1 OP_SLO READ_WRITE_2 - CYCLE_NEXT 8 + CYCLE_NEXT 8,1,0 READ_WRITE_3 OP_SLO READ_WRITE_4 - CYCLE_NEXT 8 + CYCLE_NEXT 8,1,0 opCB: @ SBX #$nn IMM_VALUE @@ -2146,70 +2242,75 @@ opD7: @ DCP $nn, X CYCLE_NEXT 6 opCF: @ DCP $nnnn + CYCLE_PRE 6 ABS_ADDR READ_WRITE_1 OP_DCP READ_WRITE_2 OP_CMP - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 READ_WRITE_3 OP_DCP READ_WRITE_4 OP_CMP - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 opDF: @ DCP $nnnn, X + CYCLE_PRE 7 ABSX_ADDR READ_WRITE_1 OP_DCP READ_WRITE_2 OP_CMP - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 READ_WRITE_3 OP_DCP READ_WRITE_4 OP_CMP - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 opDB: @ DCP $nnnn, Y + CYCLE_PRE 7 ABSY_ADDR READ_WRITE_1 OP_DCP READ_WRITE_2 OP_CMP - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 READ_WRITE_3 OP_DCP READ_WRITE_4 OP_CMP - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 opC3: @ DCP ($nn, X) + CYCLE_PRE 8 INDX_ADDR READ_WRITE_1 OP_DCP READ_WRITE_2 OP_CMP - CYCLE_NEXT 8 + CYCLE_NEXT 8,1,0 READ_WRITE_3 OP_DCP READ_WRITE_4 OP_CMP - CYCLE_NEXT 8 + CYCLE_NEXT 8,1,0 opD3: @ DCP ($nn), Y + CYCLE_PRE 8 INDY_ADDR READ_WRITE_1 OP_DCP READ_WRITE_2 OP_CMP - CYCLE_NEXT 8 + CYCLE_NEXT 8,1,0 READ_WRITE_3 OP_DCP READ_WRITE_4 OP_CMP - CYCLE_NEXT 8 + CYCLE_NEXT 8,1,0 op27: @ RLA $nn ZERO_ADDR @@ -2226,59 +2327,64 @@ op37: @ RLA $nn, X CYCLE_NEXT 6 op2F: @ RLA $nnnn + CYCLE_PRE 6 ABS_ADDR READ_WRITE_1 OP_RLA READ_WRITE_2 - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 READ_WRITE_3 OP_RLA READ_WRITE_4 - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 op3F: @ RLA $nnnn, X + CYCLE_PRE 7 ABSX_ADDR_W READ_WRITE_1 OP_RLA READ_WRITE_2 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 READ_WRITE_3 OP_RLA READ_WRITE_4 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 op3B: @ RLA $nnnn, Y + CYCLE_PRE 7 ABSY_ADDR_W READ_WRITE_1 OP_RLA READ_WRITE_2 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 READ_WRITE_3 OP_RLA READ_WRITE_4 - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 op23: @ RLA ($nn, X) + CYCLE_PRE 8 INDX_ADDR READ_WRITE_1 OP_RLA READ_WRITE_2 - CYCLE_NEXT 8 + CYCLE_NEXT 8,1,0 READ_WRITE_3 OP_RLA READ_WRITE_4 - CYCLE_NEXT 8 + CYCLE_NEXT 8,1,0 op33: @ RLA ($nn), Y + CYCLE_PRE 8 INDY_ADDR_W READ_WRITE_1 OP_RLA READ_WRITE_2 - CYCLE_NEXT 8 + CYCLE_NEXT 8,1,0 READ_WRITE_3 OP_RLA READ_WRITE_4 - CYCLE_NEXT 8 + CYCLE_NEXT 8,1,0 op67: @ RRA $nn ZERO_ADDR @@ -2297,69 +2403,74 @@ op77: @ RRA $nn, X CYCLE_NEXT 6 op6F: @ RRA $nnnn + CYCLE_PRE 6 ABS_ADDR READ_WRITE_1 OP_RRA READ_WRITE_2 OP_ADC - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 READ_WRITE_3 OP_RRA READ_WRITE_4 OP_ADC - CYCLE_NEXT 6 + CYCLE_NEXT 6,1,0 op7F: @ RRA $nnnn, X + CYCLE_PRE 7 ABSX_ADDR_W READ_WRITE_1 OP_RRA READ_WRITE_2 OP_ADC - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 READ_WRITE_3 OP_RRA READ_WRITE_4 OP_ADC - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 op7B: @ RRA $nnnn, Y + CYCLE_PRE 7 ABSY_ADDR_W READ_WRITE_1 OP_RRA READ_WRITE_2 OP_ADC - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 READ_WRITE_3 OP_RRA READ_WRITE_4 OP_ADC - CYCLE_NEXT 7 + CYCLE_NEXT 7,1,0 op63: @ RRA ($nn, X) + CYCLE_PRE 8 INDX_ADDR READ_WRITE_1 OP_RRA READ_WRITE_2 OP_ADC - CYCLE_NEXT 8 + CYCLE_NEXT 8,1,0 READ_WRITE_3 OP_RRA READ_WRITE_4 OP_ADC - CYCLE_NEXT 8 + CYCLE_NEXT 8,1,0 op73: @ RRA ($nn), Y + CYCLE_PRE 8 INDY_ADDR_W READ_WRITE_1 OP_RRA READ_WRITE_2 OP_ADC - CYCLE_NEXT 8 + CYCLE_NEXT 8,1,0 READ_WRITE_3 OP_RRA READ_WRITE_4 OP_ADC - CYCLE_NEXT 8 + CYCLE_NEXT 8,1,0 op04: @ NOP $nn @@ -2418,26 +2529,27 @@ opE2: @@@ ---- @ JMP ($nnnn) op6C: + CYCLE_PRE 5 ABS_ADDR and r0, REG_ADDR, #0xFF teq r0, #0xFF beq jmp_indirect_bug READ_WORD REBASE_PC - CYCLE_NEXT 5 + CYCLE_NEXT 5,1,0 jmp_indirect_bug: @@ @@ BUG is : to not read word at REG_ADDR, because it loops @@ but read low part at REG_ADDR and high part at REG_ADDR&0xFF00 instead of REG_ADDR+1 @@ - READ + READ 0 mov REG_PC, r0 and REG_ADDR, REG_ADDR, #0xff00 - READ + READ 0 orr r0, REG_PC, r0, lsl #8 REBASE_PC - CYCLE_NEXT 5 + CYCLE_NEXT 5,1,0 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@ -2539,6 +2651,7 @@ op60: @@@ WARNING: decrements REG_PC @@@ do_int: + add REG_CYCLE, REG_CYCLE, #7 ldr r0, [REG_OP_TABLE, #OTOFFS_PC_BASE] sub REG_PC, REG_PC, #1 sub r0, REG_PC, r0 @@ -2556,7 +2669,6 @@ do_int: REBASE_PC @ CYCLE_NEXT 7 - add REG_CYCLE, REG_CYCLE, #7 subs REG_CYCLE, REG_CYCLE, #7*48<<16 ble cpu_exec_end ldrb r0, [REG_PC], #1 @@ -2612,6 +2724,8 @@ reset_cpu: @@@ read_rom_byte: +@ try to avoid lookup of every address at least for ROM and RAM areas +@ I've verified that if ARead[0xfff0] points to CartBR, it is always normal ROM read. #ifndef DEBUG_ASM_6502 ldr r0, =CartBR ldr r2, =ARead @@ -2631,6 +2745,7 @@ read_rom_byte: read_byte: @ must preserve r3 for the callers too @ TODO: check if all of saves are needed, _DB (is full needed?) + FLUSH_TIMESTAMP r2 @ needed for TryFixit1 str REG_PC, [REG_OP_TABLE, #(OTOFFS_NES_REGS + 0x0c)] @ might get rebased str REG_P_REST, [REG_OP_TABLE, #(OTOFFS_NES_REGS + 0x10)] @ might set irq str REG_CYCLE, [REG_OP_TABLE, #(OTOFFS_NES_REGS + 0x1c)] @ might get used @@ -3009,9 +3124,13 @@ X6502_AddCycles_a: str r1, [r3] ldrsh r1, [r2, #0x1e] mvn r3, #47 @ r3=-48 - mla r0, r3, r0, r1 - strh r0, [r2, #0x1e] - bx lr + mla r3, r0, r3, r1 + ldr r1, =MapIRQHook @ hack.. + strh r3, [r2, #0x1e] + ldr r1, [r1] + tst r1, r1 + bxeq lr + bx r1 @ rebase PC when not executing or in memhandlers @@ -3034,6 +3153,10 @@ do_irq_hook: FLUSH_TIMESTAMP r0 do_irq_hook_noflushts: + @ get irqhook cycles + and r0, REG_CYCLE, #0xff00 + bic REG_CYCLE, REG_CYCLE, #0xff00 + mov r0, r0, lsr #8 #ifndef DEBUG_ASM_6502 @ I have reviewed all MapIRQHook functions, they only seem to cause IRQs, not messing cycles or something str REG_P_REST, [REG_OP_TABLE, #(OTOFFS_NES_REGS + 0x10)] @ might set irq diff --git a/ncpu.h b/ncpu.h index c123dc7..ac46a33 100644 --- a/ncpu.h +++ b/ncpu.h @@ -37,7 +37,7 @@ #define REG_P_REST r8 #define REG_NZ r9 // 14 #define REG_ADDR r10 // 18 -#define REG_CYCLE r11 // 1c +#define REG_CYCLE r11 // 1c [31:16] - fceu cycles, [15:8] - fceu irqhook cycles, [7:0] - fceu timestamp cycles #define REG_OP_TABLE r12 // 20 diff --git a/ncpu_debug.c b/ncpu_debug.c index ce1b3cc..cc78ae6 100644 --- a/ncpu_debug.c +++ b/ncpu_debug.c @@ -10,6 +10,8 @@ extern uint32 nes_registers[0x10]; extern uint32 pc_base; extern uint8 nes_internal_ram[0x800]; extern uint32 timestamp_a; +extern uint32 framecount; +static uint32 framecount_d; uint32 PC_prev = 0xcccccc, OP_prev = 0xcccccc; int32 g_cnt = 0; @@ -23,8 +25,8 @@ int mapirq_cyc_c, mapirq_cyc_a; static void leave(void) { printf("\nA: %02x, X: %02x, Y: %02x, S: %02x\n", X.A, X.X, X.Y, X.S); - printf("PC = %04lx, OP=%02lX\n", PC_prev, OP_prev); - printf("rest = %08lx\n", nes_registers[4]); + printf("PC = %04x, OP=%02X\n", PC_prev, OP_prev); + printf("rest = %08x\n", nes_registers[4]); exit(1); } @@ -34,32 +36,32 @@ static void compare_state(void) int i, fail = 0; if ((nes_registers[0] >> 24) != X.A) { - printf("A: %02lx vs %02x\n", nes_registers[0] >> 24, X.A); + printf("A: %02x vs %02x\n", nes_registers[0] >> 24, X.A); fail = 1; } if ((nes_registers[1] & 0xff) != X.X) { - printf("X: %02lx vs %02x\n", nes_registers[1] & 0xff, X.X); + printf("X: %02x vs %02x\n", nes_registers[1] & 0xff, X.X); fail = 1; } if ((nes_registers[2] & 0xff) != X.Y) { - printf("Y: %02lx vs %02x\n", nes_registers[2] & 0xff, X.Y); + printf("Y: %02x vs %02x\n", nes_registers[2] & 0xff, X.Y); fail = 1; } if (nes_registers[3] - pc_base != X.PC) { - printf("PC: %04lx vs %04x\n", nes_registers[3] - pc_base, X.PC); + printf("PC: %04x vs %04x\n", nes_registers[3] - pc_base, X.PC); fail = 1; } if ((nes_registers[4] >> 24) != X.S) { - printf("S: %02lx vs %02x\n", nes_registers[4] >> 24, X.S); + printf("S: %02x vs %02x\n", nes_registers[4] >> 24, X.S); fail = 1; } if (((nes_registers[4]>>8)&0xff) != X.IRQlow) { - printf("IRQlow: %02lx vs %02x\n", ((nes_registers[4]>>8)&0xff), X.IRQlow); + printf("IRQlow: %02x vs %02x\n", ((nes_registers[4]>>8)&0xff), X.IRQlow); fail = 1; } @@ -75,7 +77,7 @@ static void compare_state(void) } if (((int32)nes_registers[7] >> 16) != X.count) { - printf("cycles: %li vs %li\n", (int32)nes_registers[7] >> 16, X.count); + printf("cycles: %i vs %i\n", (int32)nes_registers[7] >> 16, X.count); fail = 1; } @@ -91,7 +93,7 @@ static void compare_state(void) for (i = dwrite_count_a - 1; !fail && i >= 0; i--) if (dwrites_a[i] != dwrites_c[i]) { - printf("dwrites[%i]: %06lx vs %06lx\n", dwrite_count_a, dwrites_a[i], dwrites_c[i]); + printf("dwrites[%i]: %06x vs %06x\n", dwrite_count_a, dwrites_a[i], dwrites_c[i]); fail = 1; } @@ -101,7 +103,7 @@ static void compare_state(void) } if (timestamp_a != timestamp) { - printf("timestamp: %lu vs %lu\n", timestamp_a, timestamp); + printf("timestamp: %u vs %u\n", timestamp_a, timestamp); fail = 1; } @@ -153,8 +155,12 @@ void X6502_Run_d(int32 c) //printf("-- %06i: run(%i)\n", (int)g_cnt, (int)c); g_cnt += cycles; - if (c > 200) + if (framecount != framecount_d) { compare_ram(); + framecount_d = framecount; + } + + timestamp_a = timestamp; while (g_cnt > 0) { @@ -177,7 +183,7 @@ void X6502_Run_d(int32 c) dread_count_c = dread_count_a = dwrite_count_c = dwrite_count_a = 0; mapirq_cyc_a = mapirq_cyc_c = 0; - timestamp_a = timestamp; + //timestamp_a = timestamp; X6502_Run_c(); @@ -187,6 +193,10 @@ void X6502_Run_d(int32 c) g_cnt -= 1 - X.count; if (pending_add_cycles) { g_cnt -= pending_add_cycles*48; + //X6502_AddCycles_c(pending_add_cycles); + //X6502_AddCycles_a(pending_add_cycles); + timestamp += pending_add_cycles; + timestamp_a += pending_add_cycles; pending_add_cycles = 0; } if (pending_rebase) { diff --git a/x6502.c b/x6502.c index 1f97afe..57f8a00 100644 --- a/x6502.c +++ b/x6502.c @@ -63,27 +63,16 @@ uint32 timestamp; static INLINE uint8 RdMem(unsigned int A) { - // notaz: try to avoid lookup of every address at least for ROM and RAM areas - // I've verified that if ARead[0xfff0] points to CartBR, it is always normal ROM read. -#if 0 - if ((A&0x8000)/* && ARead[0xfff0] == CartBR*/) { - return (_DB=Page[A>>11][A]); - } -#endif -#if 0 // enabling this causes 4fps slowdown. Why? - if ((A&0xe000) == 0) { // RAM area (always 0-0x1fff) - return (_DB=RAM[A&0x7FF]); - } -#endif - _DB=ARead[A](A); + int _DB1=ARead[A](A); + /*if (A >= 0x2000)*/ _DB=_DB1; #ifdef DEBUG_ASM_6502 //printf("a == %x, pc == %x\n", A, _PC); if (A >= 0x2000 && A != _PC && A != _PC - 1 && A != _PC + 1) { - dreads[dread_count_c++] = _DB; + dreads[dread_count_c++] = _DB1; if (dread_count_c > 4) { printf("dread_count out of range\n"); exit(1); } } #endif - return _DB; + return _DB1; } static INLINE void WrMem(unsigned int A, uint8 V) @@ -102,6 +91,7 @@ static INLINE void WrMem(unsigned int A, uint8 V) static INLINE uint8 RdRAM(unsigned int A) { + //return((_DB=RAM[A])); return((_DB=RAM[A])); } diff --git a/x6502.h b/x6502.h index f13bbdd..d6e8a05 100644 --- a/x6502.h +++ b/x6502.h @@ -66,7 +66,7 @@ extern void FP_FASTAPASS(1) (*MapIRQHook)(int a); #define X6502_IRQBegin X6502_IRQBegin_d #define X6502_IRQEnd X6502_IRQEnd_d #define X6502_Rebase X6502_Rebase_d -#define X6502_GetCycleCount() 0 +#define X6502_GetCycleCount() g_cnt #define X6502_C #define X6502_A #define X6502_D @@ -122,6 +122,7 @@ extern void FP_FASTAPASS(1) (*MapIRQHook)(int a); // c #ifdef X6502_C +extern int32 g_cnt; void TriggerIRQ_c(void); void TriggerNMI_c(void); void TriggerNMINSF_c(void);