Miroirs/crab
1
0
Fork 0
mirror of https://github.com/mattrberry/crab.git synced 2025-01-15 03:40:56 +01:00
Code Issues Projects Releases Packages Wiki Activity

ror &= 31

Browse source
This commit is contained in:
Matthew Berry 2020-10-18 11:53:30 -07:00
parent e64b17aea4
commit 860fc64b11
1 changed files with 1 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
src/crab/cpu.cr
View file

@ -111,6 +111,7 @@ class CPU
# Rotate right # Rotate right
def ror(word : Word, bits : Int, set_conditions : Bool) : Word def ror(word : Word, bits : Int, set_conditions : Bool) : Word
log "ror - word:#{hex_str word}, bits:#{bits}" log "ror - word:#{hex_str word}, bits:#{bits}"
bits &= 31
return word if bits == 0 return word if bits == 0
@cpsr.carry = bit?(word, bits - 1) if set_conditions @cpsr.carry = bit?(word, bits - 1) if set_conditions
word >> bits | word << (32 - bits) word >> bits | word << (32 - bits)