diff options
Diffstat (limited to 'runtime.S')
| -rw-r--r-- | runtime.S | 22 |
1 files changed, 14 insertions, 8 deletions
@@ -5,12 +5,16 @@ handle_cycle_limit: cmp 84(%rsi), %eax jb skip_sync do_sync: + push %rcx + push %rdi call m68k_save_context mov %rsi, %rdi xor %esi, %esi call sync_components mov %rax, %rsi call m68k_load_context + pop %rdi + pop %rcx skip_sync: ret @@ -271,10 +275,11 @@ do_vdp_port_write: do_vdp_port_read: mov %ecx, %edi call m68k_save_context + push %rsi call vdp_port_read - mov %rax, %rsi + pop %rsi + mov %ax, %cx call m68k_load_context - mov 136(%rsi), %cx ret do_io_write: @@ -289,10 +294,11 @@ do_io_read: mov %ecx, %edi and $0x1FFFF, %edi call m68k_save_context + push %rsi call io_read - mov %rax, %rsi + pop %rsi + mov %al, %cl call m68k_load_context - mov 136(%rsi), %cl ret do_io_write_w: @@ -307,10 +313,11 @@ do_io_read_w: mov %ecx, %edi and $0x1FFFF, %edi call m68k_save_context + push %rsi call io_read_w - mov %rax, %rsi + pop %rsi + mov %ax, %cx call m68k_load_context - mov 136(%rsi), %cx ret bad_access_msg: @@ -479,8 +486,7 @@ inccycles: add $4, %eax ret do_limit: - push %rcx - push %rdi + call handle_cycle_limit pop %rdi pop %rcx |