- have some emulation modes for single stepping, breaking, changing emulation speed

- started to make a better CPU state output with opcode mnemonics

1 files changed, 9 insertions, 2 deletions

diff --git a/emu/6502.h b/emu/6502.h
index bfc8314..1880c90 100644
--- a/emu/6502.h
+++ b/emu/6502.h
@@ -53,7 +53,7 @@ enum {
 	DEX_IMPL = 0xCA,
 	DEY_IMPL = 0x88,
 	INY_IMPL = 0xC8,
-	INC_IMPL = 0xE6,
+	INC_ZERO = 0xE6,
 	ROL_ACC  = 0x2A,
 	BNE_REL  = 0xD0,
 	BCC_REL  = 0x90,
@@ -67,6 +67,12 @@ enum {
 	NOP_IMPL = 0xEA
 };
 
+enum {
+	MAX_OPCODE_MNEMONIC_STRING_LENGTH = 20,
+	MAX_MENMONIC_LENGTH = 5,
+	NOF_OPCODES = 256
+};
+
 void cpu_6502_init( cpu_6502_t *cpu, bus_t *bus, bool initialize );
 void cpu_6502_reset( cpu_6502_t *cpu );
 uint8_t cpu_6502_read_byte( cpu_6502_t *cpu, uint16_t addr );
@@ -78,7 +84,8 @@ uint8_t cpu_6502_pop_byte( cpu_6502_t *cpu );
 uint16_t cpu_6502_pop_word( cpu_6502_t *cpu );
 void cpu_6502_run( cpu_6502_t *cpu, int steps );
 void cpu_6502_step( cpu_6502_t *cpu );
-void cpu_6502_print_state( cpu_6502_t *cpu, uint8_t opcode );
+void cpu_6502_get_opcode_mnemonic( cpu_6502_t *cpu, char *buf, int buflen, uint16_t addr );
+void cpu_6502_print_state( cpu_6502_t *cpu, uint16_t addr );
 void cpu_6502_print_memory( cpu_6502_t *cpu, uint16_t base, uint8_t size );
 void cpu_6502_print_stack( cpu_6502_t *cpu );
 void cpu_6502_print_zerop_page( cpu_6502_t *cpu );