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Prefix non-ARM instructions with X: XHLT, XDIV, XMOD, XOUT

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This commit is contained in:
Fam Zheng 2026-04-07 10:26:48 +01:00
parent 247cf85e57
commit dbd7568cb9
12 changed files with 36 additions and 36 deletions
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2
frontend/src/components/CodeEditor.vue
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@ -57,7 +57,7 @@ function hl(line) {
let h = line.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;')
h = h.replace(/(;.*)$/, '<span class="sc">$1</span>')
h = h.replace(/^(\s*\w+\s*:)/, '<span class="sl">$1</span>')
h = h.replace(/\b(MOV|ADD|SUB|MUL|DIV|MOD|AND|ORR|EOR|MVN|LSL|LSR|CMP|BEQ|BNE|BGT|BLT|BGE|BLE|LDR|STR|PUSH|POP|OUT|HLT|NOP|B)\b/gi,
h = h.replace(/\b(MOV|ADD|SUB|MUL|XDIV|XMOD|AND|ORR|EOR|MVN|LSL|LSR|CMP|BEQ|BNE|BGT|BLT|BGE|BLE|LDR|STR|PUSH|POP|XOUT|XHLT|NOP|B)\b/gi,
'<span class="sk">$1</span>')
h = h.replace(/\b(R[0-7])\b/gi, '<span class="sr">$1</span>')
h = h.replace(/(\[[^\]]+\])/g, '<span class="sm">$1</span>')

10
frontend/src/lib/levels/01.yaml
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@ -14,12 +14,12 @@ tutorial:
code: |
MOV R0, #42 ; 把 42 放进 R0
MOV R1, #100 ; 把 100 放进 R1
- title: HLT 指令
- title: XHLT 指令
text: >
程序最后要写 `HLT`（halt = 停止），告诉机器"运行结束！"
程序最后要写 `XHLT`（halt = 停止），告诉机器"运行结束！"
code: |
MOV R0, #42
HLT
XHLT
goal: 把数字 **42** 放进 **R0** 寄存器
@ -34,7 +34,7 @@ testCases:
hints:
- "MOV 的格式：MOV 寄存器, #数字"
- "试试：MOV R0, #???"
- "答案：MOV R0, #42 然后 HLT"
- "答案：MOV R0, #42 然后 XHLT"
starThresholds: [2, 3, 5]
@ -43,6 +43,6 @@ starterCode: |
; 提示：数字前面要加 # 号
HLT
XHLT
showMemory: false

4
frontend/src/lib/levels/02.yaml
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@ -30,7 +30,7 @@ testCases:
hints:
- "MOV 寄存器, 寄存器 —— 把右边复制到左边"
- "MOV R1, R0 可以把 R0 复制到 R1"
- "答案：MOV R1, R0 / MOV R2, R0 / HLT"
- "答案：MOV R1, R0 / MOV R2, R0 / XHLT"
starThresholds: [3, 4, 6]
@ -39,6 +39,6 @@ starterCode: |
; 把 R0 复制到 R1 和 R2
HLT
XHLT
showMemory: false

4
frontend/src/lib/levels/03.yaml
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@ -38,7 +38,7 @@ testCases:
hints:
- "ADD 第一个参数放结果，后两个参数相加"
- "ADD R2, R0, R1 —— 结果存入 R2"
- "答案：ADD R2, R0, R1 / HLT"
- "答案：ADD R2, R0, R1 / XHLT"
starThresholds: [2, 3, 5]
@ -47,6 +47,6 @@ starterCode: |
; 计算 R0 + R1，结果存入 R2
HLT
XHLT
showMemory: false

14
frontend/src/lib/levels/04.yaml
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@ -1,7 +1,7 @@
id: 4
title: 乘法与除法
subtitle: 更强的算术能力
description: 学习 MUL 和 DIV 指令
description: 学习 MUL 和 XDIV 指令
tutorial:
- title: MUL —— 乘法
@ -11,13 +11,13 @@ tutorial:
MOV R0, #6
MOV R1, #7
MUL R2, R0, R1 ; R2 = 6 × 7 = 42
- title: DIV —— 除法（取整）
- title: XDIV —— 除法（取整）
text: >
DIV 做整数除法（只留整数部分）：
XDIV 做整数除法（只留整数部分）：
code: |
MOV R0, #100
MOV R1, #4
DIV R2, R0, R1 ; R2 = 100 ÷ 4 = 25
XDIV R2, R0, R1 ; R2 = 100 ÷ 4 = 25
goal: 计算 **6 × 7** 存入 R0，**100 ÷ 4** 存入 R1
@ -31,9 +31,9 @@ testCases:
R1: 25
hints:
- "先 MOV 数字到寄存器，再 MUL/DIV"
- "先 MOV 数字到寄存器，再 MUL/XDIV"
- "MUL R0, R2, R3 可以把 R2×R3 的结果放到 R0"
- "答案：MOV R2, #6 / MOV R3, #7 / MUL R0, R2, R3 / MOV R2, #100 / MOV R3, #4 / DIV R1, R2, R3 / HLT"
- "答案：MOV R2, #6 / MOV R3, #7 / MUL R0, R2, R3 / MOV R2, #100 / MOV R3, #4 / XDIV R1, R2, R3 / XHLT"
starThresholds: [7, 9, 12]
@ -42,6 +42,6 @@ starterCode: |
; 计算 100÷4 存入 R1
HLT
XHLT
showMemory: false

4
frontend/src/lib/levels/05.yaml
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@ -43,7 +43,7 @@ testCases:
hints:
- "AND 用来保留某些位，把其他位清零"
- "低4位的掩码是 15（二进制 00001111）"
- "答案：AND R0, R0, #15 / HLT"
- "答案：AND R0, R0, #15 / XHLT"
starThresholds: [2, 3, 5]
@ -52,6 +52,6 @@ starterCode: |
; 用 AND 提取低4位
HLT
XHLT
showMemory: false

4
frontend/src/lib/levels/06.yaml
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@ -41,13 +41,13 @@ hints:
- "就这一条指令！"
starThresholds: [2, 3, 5]
blockedOps: [MUL, DIV]
blockedOps: [MUL, XDIV]
starterCode: |
; R0 = 5
; 用 LSL 让 R0 变成 40（不能用 MUL）
HLT
XHLT
showMemory: false

4
frontend/src/lib/levels/07.yaml
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@ -43,7 +43,7 @@ testCases:
hints:
- "先用 LDR 把内存值读到寄存器，算完用 STR 写回"
- "MOV R3, #0 设基地址，LDR R0, [R3, #0] 读第一个值"
- "答案：MOV R3, #0 / LDR R0, [R3, #0] / LDR R1, [R3, #1] / ADD R2, R0, R1 / STR R2, [R3, #2] / HLT"
- "答案：MOV R3, #0 / LDR R0, [R3, #0] / LDR R1, [R3, #1] / ADD R2, R0, R1 / STR R2, [R3, #2] / XHLT"
starThresholds: [6, 8, 10]
@ -55,7 +55,7 @@ starterCode: |
; 然后用 LDR/STR 读写内存
HLT
XHLT
showMemory: true
memoryRange: [0, 15]

6
frontend/src/lib/levels/08.yaml
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@ -32,7 +32,7 @@ tutorial:
big:
MOV R1, #1 ; R0 > 10
done:
HLT
XHLT
goal: R0=**15**。如果 R0 > 10 则 R1 = **1**；否则 R1 = **0**
@ -63,7 +63,7 @@ testCases:
hints:
- "先设 R1=#0（默认），再比较 R0 和 10"
- "如果 R0 > 10，跳到标签把 R1 改成 1"
- "答案：MOV R1, #0 / CMP R0, #10 / BLE done / MOV R1, #1 / done: HLT"
- "答案：MOV R1, #0 / CMP R0, #10 / BLE done / MOV R1, #1 / done: XHLT"
starThresholds: [5, 7, 9]
@ -72,6 +72,6 @@ starterCode: |
; 否则 R1 = 0
HLT
XHLT
showMemory: false

6
frontend/src/lib/levels/09.yaml
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@ -16,7 +16,7 @@ tutorial:
ADD R4, R4, #1 ; ②③ 计数+1
CMP R4, #5 ; ④ 到5了吗？
BLE loop ; 没到就跳回
HLT
XHLT
- title: 注意！
text: >
忘了更新计数器 = **死循环**（别担心，超过10000步会自动停止）。
@ -34,7 +34,7 @@ testCases:
hints:
- "R0 累加结果，R4 做计数器（1到10）"
- "循环体：ADD R0, R0, R4 / ADD R4, R4, #1 / CMP R4, #10 / BLE loop"
- "完整：MOV R0, #0 / MOV R4, #1 / loop: ADD R0, R0, R4 / ADD R4, R4, #1 / CMP R4, #10 / BLE loop / HLT"
- "完整：MOV R0, #0 / MOV R4, #1 / loop: ADD R0, R0, R4 / ADD R4, R4, #1 / CMP R4, #10 / BLE loop / XHLT"
starThresholds: [7, 9, 12]
@ -45,6 +45,6 @@ starterCode: |
; 提示：用一个寄存器做计数器
HLT
XHLT
showMemory: false

2
frontend/src/lib/levels/10.yaml
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@ -75,7 +75,7 @@ starterCode: |
; 用 MOV + LDR 读取内存
HLT
XHLT
showMemory: true
memoryRange: [0, 15]

12
frontend/src/lib/vm.js
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@ -1,9 +1,9 @@
const REGISTERS = ['R0','R1','R2','R3','R4','R5','R6','R7']
const OPCODES = [
'MOV','ADD','SUB','MUL','DIV','MOD',
'MOV','ADD','SUB','MUL','XDIV','XMOD',
'AND','ORR','EOR','MVN','LSL','LSR',
'CMP','B','BEQ','BNE','BGT','BLT','BGE','BLE',
'LDR','STR','PUSH','POP','OUT','HLT','NOP',
'LDR','STR','PUSH','POP','XOUT','XHLT','NOP',
]
const BRANCH_OPS = ['B','BEQ','BNE','BGT','BLT','BGE','BLE']
const MAX_STEPS = 10000
@ -198,7 +198,7 @@ export function createVM() {
try {
switch (opcode) {
case 'NOP': break
case 'HLT': state.halted = true; break
case 'XHLT': state.halted = true; break
case 'MOV':
setReg(ops[0], getVal(ops[1]), changes)
@ -207,11 +207,11 @@ export function createVM() {
case 'ADD': { const r = arith3(ops, (a,b) => a+b); state.flags.carry = r > 0xFFFF; setReg(ops[0], r, changes); updateFlags(r); break }
case 'SUB': { const r = arith3(ops, (a,b) => a-b); state.flags.carry = r < 0; setReg(ops[0], r, changes); updateFlags(r); break }
case 'MUL': { const r = arith3(ops, (a,b) => a*b); state.flags.carry = r > 0xFFFF; setReg(ops[0], r, changes); updateFlags(r); break }
case 'DIV': {
case 'XDIV': {
const r = arith3(ops, (a,b) => { if(b===0) throw new Error('除以零！'); return Math.floor(a/b) })
setReg(ops[0], r, changes); updateFlags(r); break
}
case 'MOD': {
case 'XMOD': {
const r = arith3(ops, (a,b) => { if(b===0) throw new Error('除以零！'); return a%b })
setReg(ops[0], r, changes); updateFlags(r); break
}
@ -274,7 +274,7 @@ export function createVM() {
break
}
case 'OUT': {
case 'XOUT': {
const v = getVal(ops[0])
state.output.push(v)
changes.push({ type: 'output', val: v })