Apple-2-Tools/bradgrantham-apple2e
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Add LK hack to disassemble bytes passed at 0xBFFF.

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This commit is contained in:
Lawrence Kesteloot 2018-08-02 15:20:59 -07:00
parent 27123a09ea
commit 14a84bdb6a
1 changed files with 41 additions and 0 deletions
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41
apple2e.cpp
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@ -22,6 +22,8 @@ using namespace std;
#include "dis6502.h"
#include "interface.h"
#define LK_HACK 1
const unsigned int DEBUG_ERROR = 0x01;
const unsigned int DEBUG_WARN = 0x02;
const unsigned int DEBUG_DECODE = 0x04;
@ -720,6 +722,12 @@ struct MAINboard : board_base
bool speaker_transitioning_to_high = false;
int where_in_waveform = 0;
#if LK_HACK
unsigned char *disassemble_buffer = 0;
int disassemble_index = 0;
int disassemble_size = 0;
#endif
void fill_flush_audio()
{
long long current_sample = clk * sample_rate / machine_clock_rate;
@ -1032,6 +1040,39 @@ struct MAINboard : board_base
}
virtual bool write(int addr, unsigned char data)
{
#if LK_HACK
if(addr == 0xBFFE) {
// Specify size of upcoming disassembly buffer.
if (disassemble_buffer != 0) {
delete[] disassemble_buffer;
disassemble_buffer = 0;
}
if (data != 0) {
disassemble_buffer = new unsigned char[data];
disassemble_size = data;
disassemble_index = 0;
}
return true;
} else if (addr == 0xBFFF) {
// Add byte to disassembly buffer. Disassemble if full.
if (disassemble_buffer != 0) {
disassemble_buffer[disassemble_index++] = data;
if (disassemble_index == disassemble_size) {
int bytes;
string dis;
for (int i = 0; i < disassemble_size; i += bytes) {
tie(bytes, dis) = disassemble_6502(i, disassemble_buffer + i);
printf("%s\n", dis.c_str());
}
printf("---\n");
delete[] disassemble_buffer;
disassemble_buffer = 0;
}
}
return true;
}
#endif
#if 0
if(text_page1.write(addr, data) ||
text_page1x.write(addr, data) ||