io.streams.256color: faster by caching styles

[factor.git] / vm / cpu-x86.hpp

diff --git a/vm/cpu-x86.hpp b/vm/cpu-x86.hpp
index 6e3cca788019e9b81382874fe3e67021eb972ba8..a0d83b5d78d3b5ea2a82827133eb28c37960cced 100644 (file)
--- a/vm/cpu-x86.hpp
+++ b/vm/cpu-x86.hpp
@@ -3,16 +3,16 @@ namespace factor {
 #define CALLSTACK_BOTTOM(ctx) \
   (ctx->callstack_seg->end - sizeof(cell) * 5)
 
-inline static void flush_icache(cell start, cell len) {}
+inline static void flush_icache(cell start, cell len) { (void)start; (void)len; }
 
-/* In the instruction sequence:
+// In the instruction sequence:
 
-   MOV EBX,...
-   JMP blah
+// MOV EBX,...
+// JMP blah
 
-   the offset from the immediate operand to MOV to the instruction after
-   the jump is a cell for the immediate operand, 4 bytes for the JMP
-   destination, and one byte for the JMP opcode. */
+// the offset from the immediate operand to MOV to the instruction after
+// the jump is a cell for the immediate operand, 4 bytes for the JMP
+// destination, and one byte for the JMP opcode.
 static const fixnum xt_tail_pic_offset = 4 + 1;
 
 static const unsigned char call_opcode = 0xe8;
@@ -33,9 +33,9 @@ inline static void* get_call_target(cell return_address) {
   return (void*)(*(int*)(return_address - 4) + return_address);
 }
 
-inline static void set_call_target(cell return_address, void* target) {
+inline static void set_call_target(cell return_address, cell target) {
   check_call_site(return_address);
-  *(int*)(return_address - 4) = (uint32_t)((cell)target - return_address);
+  *(int*)(return_address - 4) = (uint32_t)(target - return_address);
 }
 
 inline static bool tail_call_site_p(cell return_address) {