sne¶
sne A, #K¶
指令格式¶
sne A, #K
影响标志¶
C
Z
伪指令¶
bit[8] X = ((~K) + 1)[7:0]
{C, X} = A + X
Z = (A == K) ? 0 : 1
if A != K then skip end
指令描述¶
比较累加器A和立即数K,如果不相等则跳过下一条指令;
范例¶
//C = 0, Z = 0
mov A, #0x01 //A = 0x01
se A, #0x01 //*`C = 1, *`Z = 1, 将跳过下一条指令
inc A //被跳过
inc A //A = 0x02
sne A, R¶
指令格式¶
sne A, R
影响标志¶
C
Z
伪指令¶
bit[8] X = ((~R) + 1)[7:0]
{C, X} = A + X
Z = (A == R) ? 0 : 1
if A != R then skip end
指令描述¶
比较累加器A和寄存器R,如果不相等则跳过下一条指令;
范例¶
//C = 0, Z = 0
mov A, #0x01 //A = 0x01
mov 0x80, A //[0x80] = 0x01
clr A //A = 0x00
se A, R //C = 0, Z = 0, 不会跳过下一条指令
inc A //A = 0x01
inc A //A = 0x02