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fix flags on thumb alu neg

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Matthew Berry 2021-01-31 14:49:36 -08:00
parent b4e30b9164
commit 0ba9da018e
1 changed files with 1 additions and 1 deletions
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src/crab/thumb/alu_operations.cr
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@ -22,7 +22,7 @@ module THUMB
res = set_reg(rd, ror(@r[rd], @r[rs], false, pointerof(barrel_shifter_carry_out))) res = set_reg(rd, ror(@r[rd], @r[rs], false, pointerof(barrel_shifter_carry_out)))
@cpsr.carry = barrel_shifter_carry_out @cpsr.carry = barrel_shifter_carry_out
when 0b1000 then res = @r[rd] & @r[rs] when 0b1000 then res = @r[rd] & @r[rs]
when 0b1001 then res = set_reg(rd, ~(@r[rs] &- 1)) when 0b1001 then res = set_reg(rd, sub(0, @r[rs], set_conditions: true))
when 0b1010 then res = sub(@r[rd], @r[rs], set_conditions: true) when 0b1010 then res = sub(@r[rd], @r[rs], set_conditions: true)
when 0b1011 then res = add(@r[rd], @r[rs], set_conditions: true) when 0b1011 then res = add(@r[rd], @r[rs], set_conditions: true)
when 0b1100 then res = set_reg(rd, @r[rd] | @r[rs]) when 0b1100 then res = set_reg(rd, @r[rd] | @r[rs])