folkert/python-pdp1170
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Fix for 'python & signmask #6' -- xor is bitwise not boolean

Browse source
This commit is contained in:
Neil Webber 2024-03-30 08:28:58 -05:00
parent 2a8b38bc39
commit 90c8237c51
1 changed files with 4 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
op00.py
View file

@ -185,7 +185,7 @@ def op00_60_ror(cpu, inst, opsize=2):
cpu.psw_n = val & signmask
cpu.psw_z = (val == 0)
cpu.psw_v = cpu.psw_n ^ cpu.psw_c
cpu.psw_v = bool(cpu.psw_n) != bool(cpu.psw_c)
cpu.operandx(xb6, val, opsize=opsize)
@ -199,7 +199,7 @@ def op00_61_rol(cpu, inst, opsize=2):
cpu.psw_n = val & signmask
cpu.psw_z = (val == 0)
cpu.psw_v = cpu.psw_n ^ cpu.psw_c
cpu.psw_v = bool(cpu.psw_n) != bool(cpu.psw_c)
cpu.operandx(xb6, val, opsize=opsize)
@ -213,7 +213,7 @@ def op00_62_asr(cpu, inst, opsize=2):
val |= signbit
cpu.psw_n = (val & cpu.SIGN816[opsize])
cpu.psw_z = (val == 0)
cpu.psw_v = cpu.psw_n ^ cpu.psw_c
cpu.psw_v = bool(cpu.psw_n) != bool(cpu.psw_c)
cpu.operandx(xb6, val, opsize=opsize)
@ -224,7 +224,7 @@ def op00_63_asl(cpu, inst, opsize=2):
val = (val << 1) & cpu.MASK816[opsize]
cpu.psw_n = (val & cpu.SIGN816[opsize])
cpu.psw_z = (val == 0)
cpu.psw_v = cpu.psw_n ^ cpu.psw_c
cpu.psw_v = bool(cpu.psw_n) != bool(cpu.psw_c)
cpu.operandx(xb6, val, opsize=opsize)