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Reduce code footprint of disasm.c

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This commit is contained in:
Stefan Rueger
2024-07-18 14:13:47 +01:00
parent 058265a25a
commit b100868fd6
1 changed files with 8 additions and 72 deletions
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80
src/disasm.c
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@@ -41,46 +41,8 @@
#include "disasm_jumpcall.h"
#include "disasm_tagfile.h"
/****
void Display_Registers() {
int i;
printf("Register dump:\n");
for(i = 0; i < 256; i++) {
if(cx->dis_regs[i] != 0) {
printf("Registers[%3d] '%c': %d = 0x%x\n", i, i, cx->dis_regs[i], cx->dis_regs[i]);
}
}
printf("End of register dump.\n");
}
****/
int Compare_Opcode(const char *Bitstream, const char *Bitmask) {
size_t i;
char Bit;
for(i = 0; i < strlen(Bitmask); i++) {
if((Bitmask[i] != 'x') && (Bitmask[i] != '1') && (Bitmask[i] != '0')) {
fprintf(stderr, "Invalid Bitmask!\n");
return 0;
}
if(Bitmask[i] == 'x')
continue; // Ignore character
// Retrieve the i-th Bit of Bitstream
Bit = (Bitstream[i / 8] >> (7 - (i % 8))) & 1;
// printf("Bit %d is %d [should be %c]\n", i, Bit, Bitmask[i]);
if((Bitmask[i] == '1') && (Bit == 1))
continue;
if((Bitmask[i] == '0') && (Bit == 0))
continue;
return 0; // No match
}
return 1; // Match
}
void Register_Opcode(void (*Callback)(const char *, int, AVR_opcode), const char *New_Opcode_String, AVR_opcode mnemo) {
static void Register_Opcode(void (*Callback)(const char *, int, AVR_opcode), const char *New_Opcode_String, AVR_opcode mnemo) {
// Only register opcode if the part has it
if(avr_opcodes[mnemo].avrlevel & cx->dis_opts.AVR_Level) {
cx->dis_op[cx->dis_n_ops].Opcode_String = mmt_strdup(New_Opcode_String);
@@ -90,7 +52,7 @@ void Register_Opcode(void (*Callback)(const char *, int, AVR_opcode), const char
}
}
int Get_Bitmask_Length(const char *Bitmask) {
static int Get_Bitmask_Length(const char *Bitmask) {
int Length = 0;
size_t i;
@@ -101,14 +63,14 @@ int Get_Bitmask_Length(const char *Bitmask) {
return Length;
}
void Clear_Registers() {
static void Clear_Registers() {
int i;
for(i = 0; i < 256; i++)
cx->dis_regs[i] = 0;
}
char Get_From_Bitmask(const char *Bitmask, int Byte, int Bit) {
static char Get_From_Bitmask(const char *Bitmask, int Byte, int Bit) {
size_t i;
int Cnt = 0;
int GetBit;
@@ -124,26 +86,7 @@ char Get_From_Bitmask(const char *Bitmask, int Byte, int Bit) {
return '?';
}
void Display_Binary(const char *Bitstream, int Count) {
int i, j;
for(i = 0; i < Count; i++) {
for(j = 7; j >= 0; j--) {
if((Bitstream[i] & (1 << j)) != 0)
printf("1");
else
printf("0");
if(j == 4)
printf(" ");
}
printf(" ");
if((((i + 1) % 2) == 0) && (i != 0))
printf(" ");
}
printf("\n");
}
int Match_Opcode(const char *Bitmask, const char *Bitstream) {
static int Match_Opcode(const char *Bitmask, const char *Bitstream) {
int i;
int Length;
int Byte_Mask, Bit_Mask;
@@ -193,7 +136,7 @@ int Match_Opcode(const char *Bitmask, const char *Bitstream) {
return 1;
}
int Get_Next_Opcode(const char *Bitstream) {
static int Get_Next_Opcode(const char *Bitstream) {
int i;
for(i = 0; i < cx->dis_n_ops; i++) {
@@ -291,16 +234,9 @@ void Disassemble(const char *Bitstream, int Read, int addr) {
Pos += 2;
}
}
}
void Display_Opcodes() {
printf("%d opcodes registered:\n", cx->dis_n_ops);
for(int i = 0; i < cx->dis_n_ops; i++)
printf("%3d: '%-80s' -> %p\n", i, cx->dis_op[i].Opcode_String, (void *) cx->dis_op[i].Callback);
}
int Get_Specifity(const char *Opcode) {
static int Get_Specifity(const char *Opcode) {
size_t i;
int Specifity = 0;
@@ -311,7 +247,7 @@ int Get_Specifity(const char *Opcode) {
return Specifity;
}
int Comparison(const void *Element1, const void *Element2) {
static int Comparison(const void *Element1, const void *Element2) {
Disasm_opcode *OC1, *OC2;
int SP1, SP2;