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Copy pathz80_to_6809_15_Pacman.c
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z80_to_6809_15_Pacman.c
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#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
void getparts(char line[], char first[], char second[])
{
int ret,x,pos,pos2;
char temp[256];
// Get first part - before comma
ret = 0;
for (x = 39; x < strlen(line) ; x++) {
if (line[x] == ',') {
ret = 1;
pos = x;
x = strlen(line);
}
}
if (ret == 1) {
strncpy(first, line+39, pos-39);
first[pos-39] = '\0';
}
// get second part - after comma
ret = 0;
for (x = pos; x < strlen(line) ; x++) {
if (line[x] == ' ') {
ret = 1;
pos2 = x;
x = strlen(line);
}
}
if (ret == 1) {
strncpy(second, line+pos+1, pos2-pos-1);
second[pos2-pos-1] = '\0';
}
// printf("second=%s=\n",second);
// Check if it's a hex number
if (strlen(second) == 1) {
if (second[0] >= '0' && second[0] <= '9') {
strcat(second, "h");
}
}
strncpy(temp, second+strlen(second)-1, 1);
temp[1] = '\0';
if (strcmp(temp,"h") == 0) {
strncpy(temp, second, strlen(second)-1);
temp[strlen(second)-1] = '\0';
strcpy(second, "$");
strcat(second, temp);
}
}
/* get single value return with value in first and point indicates:
0 - register
1 - points to register mem location [register]
2 - memory location - $1e00
3 - points to memory location [$1e00]
*/
int getsingle(char line[], char first[])
{
int ret,x,pos,test = 0;
char temp[256];
int point = 0;
// Get first part - before comma
ret = 0;
for (x = 39; x < 59; x++) {
if (line[x] == ' ') {
ret = 1;
pos = x;
x = 59;
}
}
if (ret == 1) {
strncpy(first, line+39, pos-39);
first[pos-39] = '\0';
}
if (first[0] == '$') {
point = 2;
test = 1;
}
if (first[0] == '(') {
point = 3;
test = 1;
}
if ((strlen(first) == 1) || (strlen(first) == 2)) {
point = 0;
test = 1;
if (ret == 1) {
strncpy(first, line+39, pos-39);
first[pos-39] = '\0';
}
}
else {
strncpy(temp, first, 2);
temp[2] = '\0';
// Test for (HL)
if ((strncmp(temp, "(H" ,2) == 0)) {
point = 1;
test = 1;
strcpy(first, "HL");
}
}
return point;
}
int comparetor (const void * a, const void * b)
{
return ( *(int*)a - *(int*)b );
}
void change(char* var)
{
// printf("compare command is %d\n",strcmp(var,"RL"));
if (strcmp(var, "HL") == 0) {
strcpy(var,"X");
}
if (strcmp(var, "DE") == 0) {
strcpy(var,"Y");
}
if (strcmp(var, "AF") == 0) {
strcpy(var,"A,CC");
}
if (strcmp(var, "BC") == 0) {
strcpy(var,"U");
}
if (strcmp(var, "IX") == 0) {
strcpy(var,"U");
}
if (strcmp(var, "IY") == 0) {
strcpy(var,"Y");
}
if (strcmp(var, "SP") == 0) {
strcpy(var,"S");
}
// if (strcmp(var, "H") == 0) {
// strcpy(var,"A");
// }
// if (strcmp(var, "L") == 0) {
// strcpy(var,"B");
// }
}
int main(int argc, char* argv[])
{
FILE *file = NULL;
char line[1024];
char newcode[1024];
int lnumber, count = 0;
int ret,x,y,pos,point,found,store = 0, flag = 0;
char address[1024];
char first[1024];
char second[1024];
char temp[1024];
char temp2[1024];
char temp3[1024];
char hxbyte[256];
char oldcode[1024];
char other[1024] = "";
char z80[1024];
char comment[1024] = "";
char m6809[2048] = "UNKNOWN";
char in_out[1000][25];
if (argc == 2)
file = fopen(argv[1], "r");
else {
fprintf(stderr, "error: wrong number of arguments\n"
"usage: %s textfile\n", argv[0]);
return 1;
}
lnumber = 1;
while (fgets(line, sizeof(line), file)) {
/* note that fgets don't strip the terminating \n, checking its
presence would allow to handle lines longer that sizeof(line) */
// remove the line feed at the end of 'line'
line[strcspn(line, "\n")] = 0;
strcpy(m6809,"UNKNOWN");
strcpy(other,"");
strcpy(comment,"");
if (strcmp(line, "\n") != 0) {
strcpy(newcode, "");
}
ret = strncmp(line, ";", 1);
if (ret == 0){
// find comment
ret = 0;
for (x = 0; x < strlen(line); x++) {
if (line[x] == ';') {
ret = 1;
pos = x;
}
}
if (ret == 1) {
strncpy(comment, line+pos, strlen(line)-pos);
comment[strlen(line)-pos] = '\0';
}
strcpy(newcode, comment);
}
// line of code
if ((isdigit(line[0]) == 0)) {
strcpy(newcode, line);
}
else
{
// Get oiginal code section
strncpy(temp, line+28, strlen(line)-28);
temp[strlen(line)-28] = '\0';
strncpy(oldcode, line+6, 9);
oldcode[9] = '\0';
strcat(oldcode,temp);
strncpy(address, line, 4);
address[4] = '\0';
// find comment
ret = 0;
for (x = 0; x < strlen(line); x++) {
if (line[x] == ';') {
ret = 1;
pos = x;
}
}
// if (ret == 1) {
// strncpy(comment, line+pos+1, strlen(line)-pos);
// comment[strlen(line)-pos] = '\0';
// }
// Get 9 characters = mnuemonic for z80
strncpy(z80, line+31, 9);
z80[9] = '\0';
strncpy(temp, line+6, 2);
temp[2] = '\0';
//NOP = NOP or 00 data
if ((strncmp(z80, "NOP " ,4) == 0)) {
strcpy(m6809, "NOP ");
}
//IM = Interupt Mode
if ((strncmp(z80, "IM " ,4) == 0)) {
strcpy(m6809, "Interrup Mode Handler ");
strncpy(z80, line+39, 2);
z80[2] = '\0';
strcat(m6809,z80);
}
//HALT = Suspends all actions until the next interrupt.
if ((strncmp(z80, "HALT" ,4) == 0)) {
strcpy(m6809, "SYNC");
}
//NEG = When it is executed, the value in A is multiplied by -1 (two’s complement). The N flag is set, P/V is interpreted as overflow.
// The rest of the flags is modified by definition. This instruction is completely equivalent to cpl a followed by inc a
// (both in execution time and in size).
if ((strncmp(z80, "NEG " ,4) == 0)) {
strcpy(m6809, "NEGA");
}
//LD = LDx or STx
store = 0;
point = 1;
strcat(line," ");
strncpy(temp, line+39, 20);
temp[20] = '\0';
// check if command is LD
if ((strncmp(z80, "LD " ,4) == 0)) {
// printf("oldcode =%s=\n",oldcode);
// Get first,second values
//get getparts
getparts(line, first, second);
if (((first[0] != '(') && (second[0] != '(')) && ((first[0] != '$') && (second[0] != '$'))) {
strcpy(m6809, "TFR");
strcat(m6809," ");
change(first);
change(second);
strcat(m6809,second);
strcat(m6809,",");
strcat(m6809,first);
}
else {
strcpy(m6809, "LD");
if (second[0] == '$') {
strcpy(temp,"#");
strcat(temp,second);
strcpy(second,temp);
point = 0;
}
if (first[0] == '(') {
store = 1;
point = 1;
strncpy(temp, first+1, strlen(first)-2);
temp[strlen(first)-2] = '\0';
//reverse order of first, second
strcpy(first,second);
strcpy(second,temp);
strcpy(m6809, "ST");
}
if (second[0] == '(') {
point = 1;
strncpy(temp, second+1, strlen(second)-2);
temp[strlen(second)-2] = '\0';
strcpy(second, temp);
}
if (point == 1) {
strcpy(temp, "");
if (strlen(second) < 3) {
strcat(temp,",");
}
change(second);
strcat(temp, second);
strcat(temp, "");
strcpy(second, temp);
}
if (strncmp(second,"IX+",3) == 0) {
strncpy(temp, line+10, 2);
temp[2] = '\0';
strcpy(temp2,"$");
strcat(temp2,temp);
if (strcmp(temp2,"$00") == 0)
strcpy(temp2,"");
strcat(temp2,",U");
strcpy(second,temp2);
}
if (strncmp(second,"IY+",3) == 0) {
strncpy(temp, line+10, 2);
temp[2] = '\0';
strcpy(temp2,"$");
strcat(temp2,temp);
if (strcmp(temp2,"$00") == 0)
strcpy(temp2,"");
strcat(temp2,",Y");
strcpy(second,temp2);
}
change(first);
strcat(m6809,first);
strcat(m6809," ");
strcat(m6809,second);
if (strncmp(m6809, "ST#$0 ,X" ,12) == 0) {
strcpy(m6809, "CLR ,X");
}
if (strncmp(m6809, "ST#$0 ,Y" ,12) == 0) {
strcpy(m6809, "CLR ,Y");
}
if (strncmp(m6809, "ST#$0 ,U" ,12) == 0) {
strcpy(m6809, "CLR ,U");
}
}
}
// DJNZ = Decreases B and jumps to a label if not zero
if ((strncmp(z80, "DJNZ" ,4) == 0)) {
strcpy(m6809,"DECB\n");
strcat(m6809, " LBNE ");
point = getsingle(line, first);
strcat(m6809,first);
strcat(m6809," ");
}
//JP = JMP
if ((strncmp(z80, "JP " ,4) == 0)) {
strncpy(temp, line+6, 2);
temp[2] = '\0';
if ((strncmp(temp, "C3" ,2) == 0)) {
strcpy(m6809, "LBRA ");
point = getsingle(line, first);
strcat(m6809,first);
}
else {
//get getparts
getparts(line, first, second);
if (strlen(first) == 2) {
if ((strncmp(first, "NZ" ,2) == 0)) {
strcpy(m6809, "LBNE ");
}
if ((strncmp(first, "NC" ,2) == 0)) {
strcpy(m6809, "LBCC ");
}
}
if ((strncmp(first, "C" ,1) == 0)) {
strcpy(m6809, "LBCS ");
}
if ((strncmp(first, "Z" ,1) == 0)) {
strcpy(m6809, "LBEQ ");
}
if ((strncmp(first, "M" ,1) == 0)) {
strcpy(m6809, "LBMI ");
}
strcat(m6809,second);
if ((strncmp(m6809, "UNKNOWN" ,7) == 0)) {
strcpy(m6809, "JMP ,");
point = getsingle(line, first);
change(first);
strcat(m6809,first);
}
}
}
//JR = Relative jump (BRA)
if ((strncmp(z80, "JR " ,4) == 0)) {
strncpy(temp, line+6, 2);
temp[2] = '\0';
if ((strncmp(temp, "18" ,2) == 0)) {
strcpy(m6809, "LBRA ");
point = getsingle(line, first);
strcat(m6809,first);
}
else {
//get getparts
getparts(line, first, second);
if (strlen(first) == 2) {
if ((strncmp(first, "NZ" ,2) == 0)) {
strcpy(m6809, "LBNE ");
}
if ((strncmp(first, "NC" ,2) == 0)) {
strcpy(m6809, "LBCC ");
}
}
if ((strncmp(first, "C" ,1) == 0)) {
strcpy(m6809, "LBCS ");
}
if ((strncmp(first, "Z" ,1) == 0)) {
strcpy(m6809, "LBEQ ");
}
if ((strncmp(first, "M" ,1) == 0)) {
strcpy(m6809, "LBMI ");
}
strcat(m6809,second);
if ((strncmp(m6809, "UNKNOWN" ,7) == 0)) {
strcpy(m6809, "JMP ,");
}
}
}
//DEC = DEC
if ((strncmp(z80, "DEC " ,4) == 0)) {
// Get value
point = getsingle(line, first);
// 0 - register
// 2 - memory location - $1e00
// 3 - points to memory location [$1e00]
if ((point == 0) || (point == 2) || (point == 3)) {
strcpy(temp, "DEC ");
if (strlen(first) < 3) {
strcat(temp,"");
}
change(first);
if ((strncmp(first, "A" ,1) == 0) || (strncmp(first, "B" ,1) == 0)) {
strcpy(m6809, "DEC");
strcat(m6809,first);
strcat(m6809," ");
}
else {
strcat(temp, first);
strcpy(m6809, temp);
}
}
// 1 - points to register mem location [register]
if (point == 1) {
strcpy(temp, "DEC ");
if (strlen(first) < 3) {
strcat(temp,",");
}
change(first);
strcat(temp, first);
strcat(temp, " ");
strcpy(m6809, temp);
}
if ((strncmp(m6809, "DEC X" ,9) == 0)) {
strcpy(m6809, "LEAX -1,X");
}
if ((strncmp(m6809, "DEC Y" ,9) == 0)) {
strcpy(m6809, "LEAY -1,Y");
}
}
//INC = INC
if ((strncmp(z80, "INC " ,4) == 0)) {
// Get value
point = getsingle(line, first);
// 0 - register
// 2 - memory location - $1e00
// 3 - points to memory location [$1e00]
if ((point == 0) || (point == 2) || (point == 3)) {
strcpy(temp,"INC ");
if (strlen(first) < 3) {
strcat(temp,"");
}
change(first);
if ((strncmp(first, "A" ,1) == 0) || (strncmp(first, "B" ,1) == 0)) {
strcpy(m6809, "INC");
strcat(m6809,first);
strcat(m6809," ");
}
else {
strcat(temp, first);
strcpy(m6809, temp);
}
}
// 1 - points to register mem location [register]
if (point == 1) {
strcpy(temp, "INC ");
if (strlen(first) < 3) {
strcat(temp,",");
}
change(first);
strcat(temp, first);
strcat(temp, " ");
strcpy(m6809, temp);
}
if ((strncmp(m6809, "INC X" ,9) == 0)) {
strcpy(m6809, "LEAX 1,X");
}
if ((strncmp(m6809, "INC Y" ,9) == 0)) {
strcpy(m6809, "LEAY 1,Y");
}
}
//RAR = Rotate Right, bit 0 is Copied to Carry old Carry bit to bit 7
if ((strncmp(z80, "RRA " ,4) == 0)) {
//get getparts
getparts(line, first, second);
strcpy(m6809,"RORA");
}
//RAL = Rotate Left, bit 7 is Copied to Carry old Carry bit to bit 0
if ((strncmp(z80, "RLA " ,4) == 0)) {
//get getparts
getparts(line, first, second);
strcpy(m6809,"ROLA");
}
//ADD = ADD
if ((strncmp(z80, "ADD " ,4) == 0)) {
point = 0;
//get getparts
getparts(line, first, second);
strcpy(m6809,"ADD ");
change(first);
strcat(m6809,first);
strcat(m6809,"=");
strcat(m6809,first);
strcat(m6809,"+");
if (second[0] == '(') {
// point = 1;
strncpy(temp, second+1, strlen(second)-2);
temp[strlen(second)-2] = '\0';
strcpy(second, temp);
}
if (point == 1) {
strcpy(temp, "[");
change(second);
strcat(temp, second);
strcat(temp, "]");
strcpy(second, temp);
}
else {
change(second);
strcat(m6809,second);
}
if ((strncmp(m6809, "ADD A=A+" ,12) == 0)) {
strcpy(m6809, "ADDA ,");
change(second);
strcat(m6809,second);
if (second[0] == '$') {
strcpy(m6809, "ADDA #");
strcat(m6809,second);
}
if ((strncmp(m6809, "ADDA ,A" ,10) == 0))
strcpy(m6809,"ASLA ");
}
}
//AND = AND
if ((strncmp(z80, "AND " ,4) == 0)) {
// Get value
point = getsingle(line, first);
strncpy(temp, line+6, 2);
temp[2] = '\0';
if (strcmp(temp,"E6") == 0) {
point = 2;
strncpy(temp, line+8, 2);
temp[2] = '\0';
strcpy(first,"$");
strcat(first,temp);
}
// 0 - register
// 3 - points to memory location [$1e00]
if ((point == 0) || (point == 3)) {
strcpy(m6809,"ANDA ");
if (strncmp(first, "A", 1) == 0) {
strcpy(m6809,"TSTA");
}
else {
strcat(m6809,first);
}
}
// 2 - value - $A00
if (point == 2) {
strcpy(m6809,"ANDA #");
strcat(m6809,first);
}
// 1 - points to register mem location [register]
if (point == 1) {
strcpy(m6809,"ANDA ,");
change(first);
strcat(m6809,first);
}
}
//CP = subtraction from A but doesn't modify A
//Work out similar function with CMPA - Compare A 6809
if ((strncmp(z80, "CP " ,4) == 0)) {
// Get value
point = getsingle(line, first);
// 0 - register
// 3 - points to memory location [$1e00]
if ((point == 0) || (point == 3)) {
strncpy(temp, line+6, 2);
temp[2] = '\0';
if ((strncmp(temp, "FE" ,2) == 0)) {
strncpy(temp, line+8, 2);
temp[2] = '\0';
strcpy(m6809,"CMPA #$");
strcat(m6809, temp);
}
else {
strcpy(m6809,"CMPA ");
strcat(m6809,first);
strcat(m6809,"_Temp");
}
}
// 2 - value - $A00
if (point == 2) {
strcpy(m6809,"CMPA #");
strcat(m6809,first);
}
// 1 - points to register mem location register
if (point == 1) {
strcpy(m6809,"CMPA ,");
change(first);
strcat(m6809,first);
}
}
//CPI = This is a cp (hl); inc hl; dec bc combined in one instruction. The carry is preserved
// N is set and all the other flags are affected as defined.
// P/V denotes the overflowing of BC, while the Z flag is set if A=(HL) at the time of the comparison.
if ((strncmp(z80, "CPI " ,4) == 0)) {
flag = 1; // Don't add space in the front of this section
strcpy(m6809," DECB\n");
strcat(m6809," CMPA ,X+ ");
}
//CPIR = CPI repeated until either BC becomes zero or A is equal to (HL).
if ((strncmp(z80, "CPIR" ,4) == 0)) {
flag = 1; // Don't add space in the front of this section
strcpy(m6809,"! CMPA ,X+\n");
strcat(m6809," BEQ >\n");
strcat(m6809," DECB\n");
strcat(m6809," BNE <\n");
strcat(m6809,"! *** If A = (X) then X should not be incremented check the code to see if X is used next.\n");
strcat(m6809," *** If X value is used then change above to CMPA ,X next line BEQ > next line LEAX +1,X\n");
strcat(m6809," ");
}
//CPD = This is a cp (hl); dec hl; dec bc combined in one instruction. The carry is preserved
// N is set and all the other flags are affected as defined.
// P/V denotes the overflowing of BC, while the Z flag is set if A=(HL) at the time of the comparison.
if ((strncmp(z80, "CPD " ,4) == 0)) {
flag = 1; // Don't add space in the front of this section
strcpy(m6809," DECB\n");
strcat(m6809," CMPA ,X\n");
strcat(m6809," PSHS CC\n");
strcat(m6809," LEAX -1,X\n");
strcat(m6809," PULS CC ");
}
//CPDR = CPD repeated until either BC becomes zero or A is equal to (HL).
if ((strncmp(z80, "CPDR" ,4) == 0)) {
flag = 1; // Don't add space in the front of this section
strcpy(m6809,"! CMPA ,X\n");
strcat(m6809," BEQ >\n");
strcat(m6809," LEAX -1,X\n");
strcat(m6809," DECB\n");
strcat(m6809," BNE <\n");
strcat(m6809,"! \n");
strcat(m6809," ");
}
//SBI = Subtract with borrow A <- A - byte - Carry
if ((strncmp(z80, "SBI " ,4) == 0)) {
point = 0;
//get getparts
getparts(line, first, second);
strcpy(m6809,"SBCA #");
strcat(m6809,second);
}
//SUI = Subtract Immediate from accumulator
if ((strncmp(z80, "SUI " ,4) == 0)) {
point = 0;
//get getparts
point = getsingle(line, first);
strcpy(m6809,"SUBA #");
strcat(m6809,first);
}
//SUB A = subtract A from A - same as 6809 CLRA
if ((strncmp(z80, "SUB A" ,9) == 0)) {
strcpy(m6809, "CLRA");
}
//SUB = Sub stands for subtract but only takes one input. It subtracts the input from the accumulator and writes back to it.
if ((strncmp(z80, "SUB " ,4) == 0)) {
point = 0;
//get getparts
point = getsingle(line, first);
strncpy(temp, line+6, 2);
temp[2] = '\0';
if (strcmp(temp,"D6") == 0) {
point = 2;
strncpy(temp, line+8, 2);
temp[2] = '\0';
strcpy(first,"#$");
strcat(first,temp);
}
else {
change(first);
strcpy(temp,",");
strcat(temp,first);
strcpy(first,temp);
}
strcpy(m6809,"SUBA ");
strcat(m6809,first);
}
//SCF = Set Carry Flag
if ((strncmp(z80, "SCF " ,4) == 0)) {
strcpy(m6809,"ORCC #$01");
}
//CPL = Compliment the Accumulator
if ((strncmp(z80, "CPL " ,4) == 0)) {
strcpy(m6809,"COMA ");
}
//XOR = XORS A with A or with Registor or memory
if ((strncmp(z80, "XOR " ,4) == 0)) {
strcpy(m6809, "EORA ");
// Get value
point = getsingle(line, first);
strcat(m6809,first);
if ((strncmp(m6809, "EORA A" ,9) == 0)) {
strcpy(m6809,"CLRA ");
}
else {
strncpy(temp, line+6, 2);
temp[2] = '\0';
if (strcmp(temp,"EE") == 0) {
point = 2;
strncpy(temp, line+8, 2);
temp[2] = '\0';
strcpy(first,"#$");
strcat(first,temp);
}
else {
change(first);
strcpy(temp,",");
strcat(temp,first);
strcpy(first,temp);
}
strcpy(m6809,"EORA ");
strcat(m6809,first);
}
}
// di = Disable the interrupts
if ((strncmp(z80, "DI " ,4) == 0)) {
strcpy(m6809,"ORCC #$50");
}
// Instructions that need more lines of code to work correctly are below...
//IN = Read value from hardware port into A
if ((strncmp(z80, "IN " ,4) == 0)) {
//get getparts
getparts(line, first, second);
strcpy(m6809,"LDA ");
strncpy(z80, line+9, 2);
z80[2] = '\0';
strcat(m6809,"IO_");
strcat(m6809,z80);
strcat(m6809,"_");
if (second[0] == '(') {
strncpy(temp, second+1, strlen(second)-2);
temp[strlen(second)-2] = '\0';
strcpy(second, temp);
}
strcat(m6809,second);
// Let's see if it's new and if so add it to the bottom of the table
found = 0;
strncpy(temp, m6809+8, strlen(m6809)-8);
temp[strlen(m6809)-8] = '\0';
for (x = 0; x < count ; x++) {
if (strcmp(temp,in_out[x]) == 0) {
found = 1;
x = count;
}
}
if (found == 0) {
// printf("Adding-%s\n",temp);
strcpy(in_out[count],temp);
count++;
}
}
//OUT = Store value to hardware port from A
if ((strncmp(z80, "OUT " ,4) == 0)) {
//get getparts
getparts(line, first, second);
strcpy(m6809,"STA ");
strncpy(z80, line+9, 2);
z80[2] = '\0';
strcat(m6809,"IO_");
strcat(m6809,z80);
strcat(m6809,"_");
if (first[0] == '(') {
strncpy(temp, first+1, strlen(first)-2);
temp[strlen(first)-2] = '\0';
strcpy(first, temp);
}
strcat(m6809,first);
// Let's see if it's new and if so add it to the bottom of the table
found = 0;
strncpy(temp, m6809+8, strlen(m6809)-8);
temp[strlen(m6809)-8] = '\0';
for (x = 0; x < count ; x++) {
if (strcmp(temp,in_out[x]) == 0) {
found = 1;
x = count;
}
}
if (found == 0) {
// printf("Adding-%s\n",temp);
strcpy(in_out[count],temp);
count++;
}
}
//DAA = convert the A register into two BCD values 4 bits each
if ((strncmp(z80, "DAA " ,4) == 0)) {
strcpy(m6809, "DAA ");
strncpy(z80, line+39, 2);
z80[2] = '\0';
strcat(m6809,z80);
}
//CALL = LBSR
if ((strncmp(z80, "CALL" ,4) == 0)) {
strncpy(temp, line+6, 2);
temp[2] = '\0';
if ((strncmp(temp, "CD" ,2) == 0)) {
strcpy(m6809, "LBSR ");
point = getsingle(line, first);
strcat(m6809,first);
}
else {
//get getparts
getparts(line, first, second);
if (strlen(first) == 2) {
if ((strncmp(first, "NZ" ,2) == 0)) { // if Z = 0
x = (int)strtol(address, NULL, 16);
x = x + 3;
sprintf(temp, "%04X", x);
strcpy(other, " BEQ >");
// strcat(other,temp);
strcat(other," ;");
strcat(other,address);
strcat(other," -");
strcat(other,comment);
strcat(other,"\n");
strcpy(address,"****");
strcpy(comment," Added for 6809 worakaround");
strcpy(m6809, "LBSR ");
}
if ((strncmp(first, "NC" ,2) == 0)) { // if C = 0
x = (int)strtol(address, NULL, 16);
x = x + 3;
sprintf(temp, "%04X", x);
strcpy(other, " BCS >");
// strcat(other,temp);
strcat(other," ;");
strcat(other,address);
strcat(other," -");
strcat(other,comment);
strcat(other,"\n");
strcpy(address,"****");
strcpy(comment," Added for 6809 worakaround");
strcpy(m6809, "LBSR ");
}
}
if ((strncmp(first, "C" ,1) == 0)) { // if C = 1
x = (int)strtol(address, NULL, 16);
x = x + 3;
sprintf(temp, "%04X", x);
strcpy(other, " BCC >");
// strcat(other,temp);
strcat(other," ;");
strcat(other,address);
strcat(other," -");
strcat(other,comment);
strcat(other,"\n");
strcpy(address,"****");
strcpy(comment," Added for 6809 worakaround");
strcpy(m6809, "LBSR ");
}
if ((strncmp(first, "Z" ,1) == 0)) { // if Z = 1
x = (int)strtol(address, NULL, 16);
x = x + 3;
sprintf(temp, "%04X", x);
strcpy(other, " BNE >");
// strcat(other,temp);
strcat(other," ;");
strcat(other,address);
strcat(other," -");
strcat(other,comment);
strcat(other,"\n");
strcpy(address,"****");
strcpy(comment," Added for 6809 worakaround");
strcpy(m6809, "LBSR ");
}
// if ((strncmp(first, "M" ,1) == 0)) { // if M = 1
// strcpy(m6809, "LBSR based on LBMI ");
// }
strcat(m6809,second);
strcat(m6809,"\n");
strcat(m6809,"! *** Jump here ");
}
}
//PUSH = PSHS
if ((strncmp(z80, "PUSH" ,4) == 0)) {
strcpy(m6809, "PSHS ");
strncpy(z80, line+39, 2);
z80[2] = '\0';
change(z80);
strcat(m6809,z80);
}
//POP = PULS
if ((strncmp(z80, "POP " ,4) == 0)) {
strcpy(m6809, "PULS ");
strncpy(z80, line+39, 2);
z80[2] = '\0';
change(z80);
strcat(m6809,z80);
}
//EI = Enable Interrupts
if ((strncmp(z80, "EI " ,4) == 0)) {
strcpy(m6809, "ANDCC #$AF");
strncpy(z80, line+39, 2);
z80[2] = '\0';
strcat(m6809,z80);
}
//RST = Jump to subroutines at lower RAM (this will need to be tweaked for each source code listing)
if ((strncmp(z80, "RST " ,4) == 0)) {
strcpy(m6809,"LBSR ");
// Get value
point = getsingle(line, first);
if (strcmp(first,"8") == 0)
strcat(m6809,"Memset");
if (strcmp(first,"10h") == 0)
strcat(m6809,"LookupByteA");
if (strcmp(first,"18h") == 0)
strcat(m6809,"LookupWordHL");
if (strcmp(first,"20h") == 0)
strcat(m6809,"CallFunction");
if (strcmp(first,"28h") == 0)
strcat(m6809,"InsertTask");
if (strcmp(first,"30h") == 0)
strcat(m6809,"InsertIRQTask");
}
//RET = Return from subroutine or Return from Interrupt
if ((strncmp(z80, "RET " ,4) == 0)) {
strncpy(temp, line+6, 2);
temp[2] = '\0';
if ((strncmp(temp, "C9" ,2) == 0)) {
strcpy(m6809, "RTS");
}
else {
// Get value
point = getsingle(line, first);
if (strlen(first) == 2) {
if ((strncmp(first, "PE" ,2) == 0)) {
strcpy(m6809, "RTS - If PE is set ");
}
if ((strncmp(first, "NZ" ,2) == 0)) {
strcpy(m6809, "BNE to RTS address ");
}
if ((strncmp(first, "NC" ,2) == 0)) {
strcpy(m6809, "BCC to RTS address ");
}
}
if ((strncmp(first, "C" ,1) == 0)) {
strcpy(m6809, "BCS to RTS address ");
}
if ((strncmp(first, "M" ,1) == 0)) {
strcpy(m6809, "BMI to RTS address ");
}
if ((strncmp(first, "Z" ,1) == 0)) {
strcpy(m6809, "BEQ to RTS address ");
}
}
}
//EX = Exchange registers or memory pointed to
if ((strncmp(z80, "EX " ,4) == 0)) {
point = 0;
//get getparts
getparts(line, first, second);
strcpy(m6809,"EXG ");
change(first);
strcat(m6809,first);
strcat(m6809,",");
change(second);
strcat(m6809,second);
}
//OR = ORA with operand
if ((strncmp(z80, "OR " ,4) == 0)) {
// Get value
point = getsingle(line, first);
// 0 - register
if (point == 0) {