ZHCU032K December 2004 – August 2022 MSP430AFE221 , MSP430AFE222 , MSP430AFE223 , MSP430AFE231 , MSP430AFE232 , MSP430AFE233 , MSP430AFE251 , MSP430AFE252 , MSP430AFE253 , MSP430F2001 , MSP430F2002 , MSP430F2003 , MSP430F2011 , MSP430F2012 , MSP430F2013 , MSP430F2101 , MSP430F2111 , MSP430F2112 , MSP430F2121 , MSP430F2122 , MSP430F2131 , MSP430F2132 , MSP430F2132-EP , MSP430F2232 , MSP430F2234 , MSP430F2252 , MSP430F2252-Q1 , MSP430F2254 , MSP430F2272 , MSP430F2272-Q1 , MSP430F2274 , MSP430F2274-EP , MSP430F233 , MSP430F2330 , MSP430F235 , MSP430F2350 , MSP430F2370 , MSP430F2410 , MSP430F2416 , MSP430F2417 , MSP430F2418 , MSP430F2419 , MSP430F247 , MSP430F2471 , MSP430F248 , MSP430F2481 , MSP430F249 , MSP430F2491 , MSP430F2616 , MSP430F2617 , MSP430F2618 , MSP430F2619 , MSP430G2001 , MSP430G2101 , MSP430G2102 , MSP430G2111 , MSP430G2112 , MSP430G2121 , MSP430G2131 , MSP430G2132 , MSP430G2152 , MSP430G2153 , MSP430G2201 , MSP430G2201-Q1 , MSP430G2202 , MSP430G2203 , MSP430G2210 , MSP430G2211 , MSP430G2212 , MSP430G2213 , MSP430G2221 , MSP430G2230 , MSP430G2231 , MSP430G2231-Q1 , MSP430G2232 , MSP430G2233 , MSP430G2252 , MSP430G2253 , MSP430G2302 , MSP430G2303 , MSP430G2312 , MSP430G2313 , MSP430G2332 , MSP430G2333 , MSP430G2352 , MSP430G2353 , MSP430G2402 , MSP430G2403 , MSP430G2412 , MSP430G2413 , MSP430G2432 , MSP430G2433 , MSP430G2444 , MSP430G2452 , MSP430G2453 , MSP430G2513 , MSP430G2533 , MSP430G2544 , MSP430G2553 , MSP430G2744 , MSP430G2755 , MSP430G2855 , MSP430G2955 , MSP430TCH5E
* TST[.W] | 测试目的操作数 | ||
* TST.B | 测试目的 | ||
句法 | TST dst 或 TST.W dst | ||
TST.B dst | |||
运行 | dst+0FFFFh+1 | ||
dst+0FFh+1 | |||
仿真 | CMP #0,dst | ||
CMP.B #0,dst | |||
说明 | 目的操作数与零相比较。根据结果设置状态位。目的操作数不受影响。 | ||
状态位 | N: | 如果目的操作数为负则置 1,如果为正则复位 | |
Z: | 如果目的操作数包含零则置 1,否则复位 | ||
C: | 设置 | ||
V: | 复位 | ||
模式位 | OSCOFF,CPUOFF 和 GIE 不受影响。 | ||
示例 | R7 被测试。如果它为负,则继续在 R7NEG 上执行;如果为正但又不为零,则继续在 R7POS 上执行。 |
TST R7 ; Test R7
JN R7NEG ; R7 is negative
JZ R7ZERO ; R7 is zero
R7POS ...... ; R7 is positive but not zero
R7NEG ...... ; R7 is negative
R7ZERO ...... ; R7 is zero
示例 | R7 的低字节被测试。如果它为负,则继续在 R7NEG 上执行;如果为正但又不为零,则继续在 R7POS 上执行。 |
TST.B R7 ; Test low byte of R7
JN R7NEG ; Low byte of R7 is negative
JZ R7ZERO ; Low byte of R7 is zero
R7POS ...... ; Low byte of R7 is positive but not zero
R7NEG ..... ; Low byte of R7 is negative
R7ZERO ...... ; Low byte of R7 is zero