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Rokas Puzonas 2023-04-09 20:15:33 +03:00
parent 6163d37cec
commit 7110ff6df1
2 changed files with 9 additions and 4 deletions
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5
README.md Normal file
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@ -0,0 +1,5 @@
# 8086 dissassembler
For [Computer, Enhance!](https://www.computerenhance.com/)
Reference: https://edge.edx.org/c4x/BITSPilani/EEE231/asset/8086_family_Users_Manual_1_.pdf

8
src/asm.c
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@ -31,7 +31,7 @@ void dissassemble(FILE *src, FILE *dst) {
u8 mod = byte2 & 0b11000000;
u8 reg = (byte2 & 0b00111000) >> 3;
u8 rm = byte2 & 0b00000111;
if (mod == 0b11000000) {
if (mod == 0b11000000) { // Mod = 0b11
const char *reg_name = lookup_reg_name(reg, wide);
const char *rm_name = lookup_reg_name(rm, wide);
if (direction) {
@ -39,9 +39,9 @@ void dissassemble(FILE *src, FILE *dst) {
} else {
fprintf(dst, "mov %s, %s\n", rm_name, reg_name);
}
} else {
printf("ERROR: Unsupported mod '%d'", mod);
abort();
} else if (mod == 0b10000000) { // Mod = 0b10
} else if (mod == 0b01000000) { // Mod = 0b01
} else if (mod == 0b00000000) { // Mod = 0b00
}
}
}