Implemented basic register allocation.

Mainly handles 'virtual' registers at the moment (eg current and last PC values, segment override status, etc).
2018-06-23 19:04:36 +01:00 · 2018-06-23 19:04:36 +01:00 · ee3f9210dc
commit ee3f9210dc
parent 03fe25d818
23 changed files with 776 additions and 76 deletions
--- a/src/codegen_backend_arm64_defs.h
+++ b/src/codegen_backend_arm64_defs.h
@ -69,4 +69,6 @@
 #define REG_ARG2 REG_X2
 #define REG_ARG3 REG_X3

-#define REG_CPUSTATE REG_X29
+#define REG_CPUSTATE REG_X29
+
+#define CODEGEN_HOST_REGS 5