6502/cc65
1
0
Fork 0
mirror of https://github.com/cc65/cc65.git synced 2025-01-03 01:31:55 +00:00
Code Issues Projects Releases Wiki Activity

Fixed a bug

Browse Source 
git-svn-id: svn://svn.cc65.org/cc65/trunk@2312 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2003-08-14 13:08:46 +00:00
parent 3302bfc108
commit 91a79e4714
1 changed files with 29 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

48
src/cc65/codegen.c
View File

@ -585,39 +585,49 @@ void g_restore_regvars (int StackOffs, int RegOffs, unsigned Bytes)
/* Don't loop for up to two bytes */ /* Don't loop for up to two bytes */
if (Bytes == 1) { if (Bytes == 1) {
ldyconst (StackOffs); ldyconst (StackOffs);
AddCodeLine ("lda (sp),y"); AddCodeLine ("lda (sp),y");
AddCodeLine ("sta regbank%+d", RegOffs); AddCodeLine ("sta regbank%+d", RegOffs);
} else if (Bytes == 2) { } else if (Bytes == 2) {
ldyconst (StackOffs); ldyconst (StackOffs);
AddCodeLine ("lda (sp),y"); AddCodeLine ("lda (sp),y");
AddCodeLine ("sta regbank%+d", RegOffs); AddCodeLine ("sta regbank%+d", RegOffs);
AddCodeLine ("iny"); AddCodeLine ("iny");
AddCodeLine ("lda (sp),y"); AddCodeLine ("lda (sp),y");
AddCodeLine ("sta regbank%+d", RegOffs+1); AddCodeLine ("sta regbank%+d", RegOffs+1);
} else if (Bytes == 3 && CodeSizeFactor >= 133) {
ldyconst (StackOffs);
AddCodeLine ("lda (sp),y");
AddCodeLine ("sta regbank%+d", RegOffs);
AddCodeLine ("iny");
AddCodeLine ("lda (sp),y");
AddCodeLine ("sta regbank%+d", RegOffs+1);
AddCodeLine ("iny");
AddCodeLine ("lda (sp),y");
AddCodeLine ("sta regbank%+d", RegOffs+2);
} else { } else {
/* More than two bytes - loop */ /* More bytes - loop */
unsigned Label = GetLocalLabel (); unsigned Label = GetLocalLabel ();
ldyconst (StackOffs+Bytes-1); ldyconst (StackOffs);
ldxconst (Bytes); g_defcodelabel (Label);
g_defcodelabel (Label);
AddCodeLine ("lda (sp),y"); AddCodeLine ("lda (sp),y");
AddCodeLine ("sta regbank%+d,x", RegOffs-1); AddCodeLine ("sta regbank%+d,y", RegOffs - StackOffs);
AddCodeLine ("dey"); AddCodeLine ("iny");
AddCodeLine ("dex"); AddCodeLine ("cpy #$%02X", StackOffs + Bytes);
AddCodeLine ("bne %s", LocalLabelName (Label)); AddCodeLine ("bne %s", LocalLabelName (Label));
} }
} }
/*****************************************************************************/ /*****************************************************************************/
/* Fetching memory cells */ /* Fetching memory cells */
/*****************************************************************************/ /*****************************************************************************/