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Diffstat (limited to 'z80_to_x86.c')
-rw-r--r--z80_to_x86.c65
1 files changed, 33 insertions, 32 deletions
diff --git a/z80_to_x86.c b/z80_to_x86.c
index 13716ff..fab31da 100644
--- a/z80_to_x86.c
+++ b/z80_to_x86.c
@@ -1377,11 +1377,11 @@ void translate_z80inst(z80inst * inst, z80_context * context, uint16_t address,
cycles(&opts->gen, 5);//T States: 5
uint16_t dest_addr = inst->immed;
code_ptr call_dst = z80_get_native_address(context, dest_addr);
- if (!call_dst) {
+ if (!call_dst) {
opts->gen.deferred = defer_address(opts->gen.deferred, dest_addr, code->cur + 1);
- //fake address to force large displacement
+ //fake address to force large displacement
call_dst = code->cur + 256;
- }
+ }
jmp(code, call_dst);
*no_jump_off = code->cur - (no_jump_off+1);
break;
@@ -1390,11 +1390,11 @@ void translate_z80inst(z80inst * inst, z80_context * context, uint16_t address,
cycles(&opts->gen, 12);//T States: 4,3,5
uint16_t dest_addr = address + inst->immed + 2;
code_ptr call_dst = z80_get_native_address(context, dest_addr);
- if (!call_dst) {
+ if (!call_dst) {
opts->gen.deferred = defer_address(opts->gen.deferred, dest_addr, code->cur + 1);
- //fake address to force large displacement
+ //fake address to force large displacement
call_dst = code->cur + 256;
- }
+ }
jmp(code, call_dst);
break;
}
@@ -1419,11 +1419,11 @@ void translate_z80inst(z80inst * inst, z80_context * context, uint16_t address,
cycles(&opts->gen, 5);//T States: 5
uint16_t dest_addr = address + inst->immed + 2;
code_ptr call_dst = z80_get_native_address(context, dest_addr);
- if (!call_dst) {
+ if (!call_dst) {
opts->gen.deferred = defer_address(opts->gen.deferred, dest_addr, code->cur + 1);
- //fake address to force large displacement
+ //fake address to force large displacement
call_dst = code->cur + 256;
- }
+ }
jmp(code, call_dst);
*no_jump_off = code->cur - (no_jump_off+1);
break;
@@ -1436,15 +1436,15 @@ void translate_z80inst(z80inst * inst, z80_context * context, uint16_t address,
cycles(&opts->gen, 5);//T States: 5
uint16_t dest_addr = address + inst->immed + 2;
code_ptr call_dst = z80_get_native_address(context, dest_addr);
- if (!call_dst) {
+ if (!call_dst) {
opts->gen.deferred = defer_address(opts->gen.deferred, dest_addr, code->cur + 1);
- //fake address to force large displacement
+ //fake address to force large displacement
call_dst = code->cur + 256;
- }
+ }
jmp(code, call_dst);
*no_jump_off = code->cur - (no_jump_off+1);
break;
- }
+ }
case Z80_CALL: {
cycles(&opts->gen, 11);//T States: 4,3,4
sub_ir(code, 2, opts->regs[Z80_SP], SZ_W);
@@ -1452,11 +1452,11 @@ void translate_z80inst(z80inst * inst, z80_context * context, uint16_t address,
mov_rr(code, opts->regs[Z80_SP], opts->gen.scratch2, SZ_W);
call(code, opts->write_16_highfirst);//T States: 3, 3
code_ptr call_dst = z80_get_native_address(context, inst->immed);
- if (!call_dst) {
+ if (!call_dst) {
opts->gen.deferred = defer_address(opts->gen.deferred, inst->immed, code->cur + 1);
- //fake address to force large displacement
+ //fake address to force large displacement
call_dst = code->cur + 256;
- }
+ }
jmp(code, call_dst);
break;
}
@@ -1494,15 +1494,15 @@ void translate_z80inst(z80inst * inst, z80_context * context, uint16_t address,
mov_rr(code, opts->regs[Z80_SP], opts->gen.scratch2, SZ_W);
call(code, opts->write_16_highfirst);//T States: 3, 3
code_ptr call_dst = z80_get_native_address(context, inst->immed);
- if (!call_dst) {
+ if (!call_dst) {
opts->gen.deferred = defer_address(opts->gen.deferred, inst->immed, code->cur + 1);
- //fake address to force large displacement
+ //fake address to force large displacement
call_dst = code->cur + 256;
- }
+ }
jmp(code, call_dst);
*no_call_off = code->cur - (no_call_off+1);
break;
- }
+ }
case Z80_RET:
cycles(&opts->gen, 4);//T States: 4
mov_rr(code, opts->regs[Z80_SP], opts->gen.scratch1, SZ_W);
@@ -1806,6 +1806,7 @@ void z80_handle_deferred(z80_context * context)
}
}
+extern void * z80_retranslate_inst(uint32_t address, z80_context * context, uint8_t * orig_start) asm("z80_retranslate_inst");
void * z80_retranslate_inst(uint32_t address, z80_context * context, uint8_t * orig_start)
{
char disbuf[80];
@@ -1913,13 +1914,13 @@ void translate_z80_stream(z80_context * context, uint32_t address)
translate_z80inst(&inst, context, address, 0);
z80_map_native_address(context, address, start, next-encoded, opts->gen.code.cur - start);
address += next-encoded;
- address &= 0xFFFF;
+ address &= 0xFFFF;
} while (!z80_is_terminal(&inst));
process_deferred(&opts->gen.deferred, context, (native_addr_func)z80_get_native_address);
if (opts->gen.deferred) {
address = opts->gen.deferred->address;
dprintf("defferred address: %X\n", address);
- }
+ }
} while (opts->gen.deferred);
}
@@ -2277,10 +2278,10 @@ void z80_clear_reset(z80_context * context, uint32_t cycle)
z80_run(context, cycle);
if (context->reset) {
//TODO: Handle case where reset is not asserted long enough
- context->im = 0;
- context->iff1 = context->iff2 = 0;
+ context->im = 0;
+ context->iff1 = context->iff2 = 0;
context->native_pc = NULL;
- context->extra_pc = NULL;
+ context->extra_pc = NULL;
context->pc = 0;
context->reset = 0;
if (context->busreq) {
@@ -2294,7 +2295,7 @@ void z80_assert_busreq(z80_context * context, uint32_t cycle)
{
z80_run(context, cycle);
context->busreq = 1;
-}
+ }
void z80_clear_busreq(z80_context * context, uint32_t cycle)
{
@@ -2353,7 +2354,7 @@ void zcreate_stub(z80_context * context)
check_code_prologue(code);
context->bp_stub = code->cur;
- //Calculate length of prologue
+ //Calculate length of prologue
check_cycles_int(&opts->gen, 0);
int check_int_size = code->cur-context->bp_stub;
code->cur = context->bp_stub;
@@ -2361,15 +2362,15 @@ void zcreate_stub(z80_context * context)
//Calculate length of patch
int patch_size = zbreakpoint_patch(context, 0, code->cur);
- //Save context and call breakpoint handler
+ //Save context and call breakpoint handler
call(code, opts->gen.save_context);
push_r(code, opts->gen.scratch1);
call_args_abi(code, context->bp_handler, 2, opts->gen.context_reg, opts->gen.scratch1);
mov_rr(code, RAX, opts->gen.context_reg, SZ_PTR);
- //Restore context
+ //Restore context
call(code, opts->gen.load_context);
pop_r(code, opts->gen.scratch1);
- //do prologue stuff
+ //do prologue stuff
cmp_rr(code, opts->gen.cycles, opts->gen.limit, SZ_D);
uint8_t * jmp_off = code->cur+1;
jcc(code, CC_NC, code->cur + 7);
@@ -2378,7 +2379,7 @@ void zcreate_stub(z80_context * context)
push_r(code, opts->gen.scratch1);
jmp(code, opts->gen.handle_cycle_limit_int);
*jmp_off = code->cur - (jmp_off+1);
- //jump back to body of translated instruction
+ //jump back to body of translated instruction
pop_r(code, opts->gen.scratch1);
add_ir(code, check_int_size - patch_size, opts->gen.scratch1, SZ_PTR);
jmp_r(code, opts->gen.scratch1);
@@ -2411,6 +2412,6 @@ void zremove_breakpoint(z80_context * context, uint16_t address)
opts->gen.code.last = native + 16;
check_cycles_int(&opts->gen, address);
opts->gen.code = tmp_code;
- }
+}
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-19 17:10:27 +0000