Mercurial > repos > blastem
view analyze.py @ 620:9d6fed6501ba
Fix handling of code writes for Z80 core. This seems to get things close to being back to where they were before the big refactor that broke the Z80 core. Some problems remain. Notably the sound driver in Sonic 2 is still quite broken.
author | Michael Pavone <pavone@retrodev.com> |
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date | Mon, 29 Dec 2014 23:08:39 -0800 |
parents | 006008a3f370 |
children |
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#!/usr/bin/env python #OLD #0 - !SE #1 - !CAS #2 - A0 #3 - A1 #------ #4 - A2 #5 - A3 #6 - A7 #7 - EDCLK #------ #8 - !HSYNC #9 - A4 #A - A5 #B - A6 #------ #C - !RAS #D - !WB/!WE #E - !DT/!OE #F - SC #NEW #0 - !IPL2 #1 - !CAS #2 - A0 #3 - A1 #------ #4 - A2 #5 - A3 #6 - A7 #7 - !HSYNC #------ #8 - !VSYNC #9 - A4 #A - A5 #B - A6 #------ #C - !RAS #D - !WB/!WE #E - !DT/!OE #F - SC #VRAM swizzling #A0 = V0 #A1 = V1 #A8 = V2 #A9 = V3 #A10 = V4 #A11 = V5 #A12 = V6 #A13 = V7 #A14 = V8 #A15 = V9 #--guesses follow-- #A2 = V10 #A3 = V11 #A4 = V12 #A5 = V13 #A6 = V14 #A7 = V15 def get_addr(sample): return ((sample >> 2) & 0xF) | ((sample >> 5) & 0x70) | ((sample << 1) & 0x80) def swizzle_addr(addr): return (addr & 0x0003) | ((addr >> 6) & 0x03FC) | ((addr << 8) & 0xFC00) def print_addr_op(addr, addr_format, mode, samplenum, triggerpos, rate): print '{0:{1}} ({2:{1}}) {3}@{4} ns'.format(swizzle_addr(addr), addr_format, addr, mode, (samplenum - triggerpos)*rate) def detect_rise(last, sample, bit): mask = 1 << bit return (not last & mask) and (sample & mask) def detect_fall(last, sample, bit): mask = 1 << bit return (last & mask) and (not sample & mask) def detect_high(sample, bit): mask = 1 << bit return sample & mask ipl2 = 0x0 cas = 0x1 ras = 0xC vsync = 0x8 hsync = 0x7 wewb = 0xD oedt = 0xE sc = 0xF last = False state = 'begin' triggerpos = 0 readcounter = 0 sillyread = 0 lastaddr = -1 edclk_ticks = 0 sc_ticks = 0 tick_start = False #f = open('street_fighter_vram_100mhz_hsync_trig_2.ols') #f = open('street_fighter_vram_50mhz_hsync_trig.ols') from sys import argv,exit if len(argv) < 2: print 'usage: analyze.py filename' exit(1) if '-b' in argv: addr_format = '016b' else: addr_format = '04X' f = open(argv[1]) for line in f: if line.startswith(';TriggerPosition'): _,_,triggerpos = line.partition(':') triggerpos = int(triggerpos.strip()) elif line.startswith(';Rate'): _,_,rate = line.partition(':') #convert to nanoseconds between samples rate = (1.0/float(rate.strip())) * 1000000000.0 elif not line.startswith(';'): sample,_,samplenum = line.partition('@') samplenum = int(samplenum.strip()) sample = int(sample, 16) if detect_rise(last, sample, sc): sc_ticks += 1 if not (last is False): #detect falling edge of !HSYNC if detect_fall(last, sample, hsync): if readcounter: print readcounter, 'reads,', sillyread, 'redundant reads' readcounter = sillyread = 0 if not tick_start is False: print 'SC:', sc_ticks, ' ticks, {0}MHz'.format(float(sc_ticks)/((rate * (samplenum-tick_start)) / 1000.0)) tick_start = samplenum edclk_ticks = sc_ticks = 0 print 'HSYNC Start @ {0} ns'.format((samplenum - triggerpos)*rate) #detect rising edge of !HSYNC elif detect_rise(last, sample, hsync): if not tick_start is False: float(edclk_ticks)/((rate * (samplenum-tick_start)) / 1000.0) print 'EDCLK:', edclk_ticks, ' ticks, {0}MHz'.format(float(edclk_ticks)/((rate * (samplenum-tick_start)) / 1000.0)) print 'SC:', sc_ticks, ' ticks, {0}MHz'.format(float(sc_ticks)/((rate * (samplenum-tick_start)) / 1000.0)) tick_start = samplenum edclk_ticks = sc_ticks = 0 print 'HSYNC End @ {0} ns'.format((samplenum - triggerpos)*rate) if detect_fall(last, sample, vsync): print 'VSYNC Start @ {0} ns'.format((samplenum - triggerpos)*rate) elif detect_rise(last, sample, vsync): print 'VSYNC End @ {0} ns'.format((samplenum - triggerpos)*rate) if detect_fall(last, sample, ipl2): print 'IPL2 Low @ {0} ns'.format((samplenum - triggerpos)*rate) elif detect_rise(last, sample, ipl2): print 'IPL2 High @ {0} ns'.format((samplenum - triggerpos)*rate) if state == 'begin': #detect falling edge of !RAS if detect_fall(last, sample, ras): state = 'ras' row = get_addr(sample) mode = 'ram' if detect_high(sample, oedt) else 'read transfer' elif detect_fall(last, sample, cas) and detect_high(sample, oedt): state = 'cas' elif state == 'ras': if detect_fall(last, sample, cas): state = 'begin' col = get_addr(sample) addr = (row << 8) | col if mode == 'ram': state = 'ras_cas' else: print_addr_op(addr, addr_format, mode, samplenum, triggerpos, rate) lastaddr = addr #print '{0:04X} {1} - {2:02X}:{3:02X} - {0:016b}'.format(addr, mode, row, col) elif state == 'cas': if detect_fall(last, sample, ras): state = 'begin' print 'refresh@{0} ns'.format((samplenum - triggerpos)*rate) elif state == 'ras_cas': if detect_fall(last, sample, oedt): readcounter += 1 if addr == lastaddr: sillyread += 1 print_addr_op(addr, addr_format, 'read', samplenum, triggerpos, rate) state = 'begin' elif detect_fall(last, sample, wewb): print_addr_op(addr, addr_format, 'write', samplenum, triggerpos, rate) state = 'begin' last = sample